diff --git a/.github/workflows/build-and-deploy.yml b/.github/workflows/build-and-deploy.yml index db2cf04..d35abd7 100644 --- a/.github/workflows/build-and-deploy.yml +++ b/.github/workflows/build-and-deploy.yml @@ -36,4 +36,4 @@ jobs: GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }} BRANCH: gh-pages FOLDER: dist - CLEAN: false + CLEAN: true diff --git a/.gitignore b/.gitignore index 30fd2a8..d1bed12 100644 --- a/.gitignore +++ b/.gitignore @@ -59,6 +59,3 @@ typings/ # next.js build output .next - -dist/bundle.js -dist/bundle.js.map \ No newline at end of file diff --git a/DONE.png b/DONE.png new file mode 100644 index 0000000..9303ba2 Binary files /dev/null and b/DONE.png differ diff --git a/DONEFLAT.png b/DONEFLAT.png new file mode 100644 index 0000000..84e483c Binary files /dev/null and b/DONEFLAT.png differ diff --git a/README.md b/README.md index ae3da83..c652fda 100644 --- a/README.md +++ b/README.md @@ -1,51 +1,19 @@ -# CIS 566 Homework 2: Implicit Surfaces +# CIS 566 Homework 3: Advanced Raymarched Scenes ## Objective - Gain experience with signed distance functions - Experiment with animation curves +- Create a presentable portfolio piece ## Base Code -Please feel free to use this code as a base (https://www.shadertoy.com/view/fsdXzM) - -The code we have provided for this assignment features the following: -- A square that spans the range [-1, 1] in X and Y that is rendered with a -shader that does not apply a projection matrix to it, thus rendering it as the -entirety of your screen -- TypeScript code just like the code in homework 1 to set up a WebGL framework -- Code that passes certain camera attributes (listed in the next section), -the screen dimensions, and a time counter to the shader program. +You will copy your implementation of hw02 into your hw03 repository. ## Assignment Requirements -- __(10 points)__ Modify the provided `flat-frag.glsl` to cast rays from a -virtual camera. We have set up uniform variables in your shader that take in -the eye position, reference point position, and up vector of the `Camera` in -the provided TypeScript code, along with a uniform that stores the screen width -and height. Using these uniform variables, and only these uniform variables, -you must write a function that uses the NDC coordinates of the current fragment -(i.e. its fs_Pos value) and projects a ray from that pixel. Refer to the [slides -on ray casting](https://docs.google.com/presentation/d/e/2PACX-1vSN5ntJISgdOXOSNyoHimSVKblnPnL-Nywd6aRPI-XPucX9CeqzIEGTjFTwvmjYUgCglTqgvyP1CpxZ/pub?start=false&loop=false&delayms=60000&slide=id.g27215b64c6_0_107) -from CIS 560 for reference on how to cast a ray without an explicit -view-projection matrix. You'll have to compute your camera's Right vector based -on the provided Up vector, Eye point, and Ref point. You can test your ray -casting function by converting your ray directions to colors using the formula -`color = 0.5 * (dir + vec3(1.0, 1.0, 1.0))`. If your screen looks like the -following image, your rays are being cast correctly: -![](rayDir.png) -- __(70 points)__ Create a scene using raymarched signed distance functions. -The subject of your scene should be based on some reference image, such as a -shot from a movie or a piece of artwork. Your scene should incorporate the -following elements: - - The SDF combination operation Smooth Blend. - - Basic Lambertian reflection using a hard-coded light source and SDF surface normals. - - Animation of at least one element of the scene, with at least two Toolbox Functions - used to control the animation(s). - - Hard-edged shadows cast by shapes in the scene onto one another using a shadow-feeler ray. - -For the next assignment you will build upon this scene with procedural textures and more -advanced lighting and reflection models, so don't worry if your scene looks a bit drab -given the requirements listed above. - +- __(35 points) Artwork Replication__ Your raymarched scene should attempt to replicate the appearance of your inspiration (include picture) with clear effort put into the replication. +- __(25 points) Materials__ Your scene should be composed of at least three different materials. We define a material to be a surface reflection model combined with some base surface color; texturing is optional. +- __(10 points) Lighting and Shadows__ Light your scene with at least three light sources. At least one of your light sources must cast shadows, and they should be soft shadows using the penumbra shadows algorithm we discussed in class. Consider following the "Key Light, Fill Light, GI Light" formulation from the in-class example. +- __(20 points) Performance__ The frame rate of your scene must be at least 10FPS. - __(10 points)__ Following the specifications listed [here](https://github.com/pjcozzi/Articles/blob/master/CIS565/GitHubRepo/README.md), create your own README.md, renaming this file to INSTRUCTIONS.md. Don't worry @@ -54,8 +22,7 @@ README contains the following information: - Your name and PennKey - Citation of any external resources you found helpful when implementing this assignment. - - A link to your live github.io demo (refer to the pinned Piazza post on - how to make a live demo through github.io) + - A link to your live github.io demo - An explanation of the techniques you used to model and animate your scene. ## Useful Links @@ -66,8 +33,7 @@ README contains the following information: ## Submission -Commit and push to Github, then submit a link to your commit on Canvas. Remember -to make your own README! +Commit and push to Github, then make a pull request on the hw03 repository with a title containing your name, and a comment containing a link to your live demo. ## Inspiration - [Alien Corridor](https://www.shadertoy.com/view/4slyRs) diff --git a/dist/bundle.js b/dist/bundle.js new file mode 100644 index 0000000..0f56b75 --- /dev/null +++ b/dist/bundle.js @@ -0,0 +1,15343 @@ +/******/ (function(modules) { // webpackBootstrap +/******/ // The module cache +/******/ var installedModules = {}; +/******/ +/******/ // The require function +/******/ function __webpack_require__(moduleId) { +/******/ +/******/ // Check if module is in cache +/******/ if(installedModules[moduleId]) { +/******/ return installedModules[moduleId].exports; +/******/ } +/******/ // Create a new module (and put it into the cache) +/******/ var module = installedModules[moduleId] = { +/******/ i: moduleId, +/******/ l: false, +/******/ exports: {} +/******/ }; +/******/ +/******/ // Execute the module function +/******/ modules[moduleId].call(module.exports, module, module.exports, __webpack_require__); +/******/ +/******/ // Flag the module as loaded +/******/ module.l = true; +/******/ +/******/ // Return the exports of the module +/******/ return module.exports; +/******/ } +/******/ +/******/ +/******/ // expose the modules object (__webpack_modules__) +/******/ __webpack_require__.m = modules; +/******/ +/******/ // expose the module cache +/******/ __webpack_require__.c = installedModules; +/******/ +/******/ // define getter function for harmony exports +/******/ __webpack_require__.d = function(exports, name, getter) { +/******/ if(!__webpack_require__.o(exports, name)) { +/******/ Object.defineProperty(exports, name, { +/******/ configurable: false, +/******/ enumerable: true, +/******/ get: getter +/******/ }); +/******/ } +/******/ }; +/******/ +/******/ // getDefaultExport function for compatibility with non-harmony modules +/******/ __webpack_require__.n = function(module) { +/******/ var getter = module && module.__esModule ? +/******/ function getDefault() { return module['default']; } : +/******/ function getModuleExports() { return module; }; +/******/ __webpack_require__.d(getter, 'a', getter); +/******/ return getter; +/******/ }; +/******/ +/******/ // Object.prototype.hasOwnProperty.call +/******/ __webpack_require__.o = function(object, property) { return Object.prototype.hasOwnProperty.call(object, property); }; +/******/ +/******/ // __webpack_public_path__ +/******/ __webpack_require__.p = "dist/"; +/******/ +/******/ // Load entry module and return exports +/******/ return __webpack_require__(__webpack_require__.s = 19); +/******/ }) +/************************************************************************/ +/******/ ([ +/* 0 */ +/***/ (function(module, __webpack_exports__, __webpack_require__) { + +"use strict"; +/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, "a", function() { return ARRAY_TYPE; }); +/* unused harmony export setMatrixArrayType */ +/* unused harmony export toRadian */ +/* unused harmony export equals */ +/* Copyright (c) 2015, Brandon Jones, Colin MacKenzie IV. + +Permission is hereby granted, free of charge, to any person obtaining a copy +of this software and associated documentation files (the "Software"), to deal +in the Software without restriction, including without limitation the rights +to use, copy, modify, merge, publish, distribute, sublicense, and/or sell +copies of the Software, and to permit persons to whom the Software is +furnished to do so, subject to the following conditions: + +The above copyright notice and this permission notice shall be included in +all copies or substantial portions of the Software. + +THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR +IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, +FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE +AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER +LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, +OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN +THE SOFTWARE. */ + +/** + * Common utilities + * @module glMatrix + */ + +// Configuration Constants +const EPSILON = 0.000001; +/* harmony export (immutable) */ __webpack_exports__["b"] = EPSILON; + +let ARRAY_TYPE = (typeof Float32Array !== 'undefined') ? Float32Array : Array; +const RANDOM = Math.random; +/* harmony export (immutable) */ __webpack_exports__["c"] = RANDOM; + + +/** + * Sets the type of array used when creating new vectors and matrices + * + * @param {Type} type Array type, such as Float32Array or Array + */ +function setMatrixArrayType(type) { + ARRAY_TYPE = type; +} + +const degree = Math.PI / 180; + +/** + * Convert Degree To Radian + * + * @param {Number} a Angle in Degrees + */ +function toRadian(a) { + return a * degree; +} + +/** + * Tests whether or not the arguments have approximately the same value, within an absolute + * or relative tolerance of glMatrix.EPSILON (an absolute tolerance is used for values less + * than or equal to 1.0, and a relative tolerance is used for larger values) + * + * @param {Number} a The first number to test. + * @param {Number} b The second number to test. + * @returns {Boolean} True if the numbers are approximately equal, false otherwise. + */ +function equals(a, b) { + return Math.abs(a - b) <= EPSILON*Math.max(1.0, Math.abs(a), Math.abs(b)); +} + + +/***/ }), +/* 1 */ +/***/ (function(module, __webpack_exports__, __webpack_require__) { + +"use strict"; +/* harmony import */ var __WEBPACK_IMPORTED_MODULE_0__gl_matrix_common__ = __webpack_require__(0); +/* harmony import */ var __WEBPACK_IMPORTED_MODULE_1__gl_matrix_mat2__ = __webpack_require__(20); +/* harmony import */ var __WEBPACK_IMPORTED_MODULE_2__gl_matrix_mat2d__ = __webpack_require__(21); +/* harmony import */ var __WEBPACK_IMPORTED_MODULE_3__gl_matrix_mat3__ = __webpack_require__(5); +/* harmony import */ var __WEBPACK_IMPORTED_MODULE_4__gl_matrix_mat4__ = __webpack_require__(22); +/* harmony import */ var __WEBPACK_IMPORTED_MODULE_5__gl_matrix_quat__ = __webpack_require__(23); +/* harmony import */ var __WEBPACK_IMPORTED_MODULE_6__gl_matrix_vec2__ = __webpack_require__(24); +/* harmony import */ var __WEBPACK_IMPORTED_MODULE_7__gl_matrix_vec3__ = __webpack_require__(6); +/* harmony import */ var __WEBPACK_IMPORTED_MODULE_8__gl_matrix_vec4__ = __webpack_require__(7); +/* unused harmony reexport glMatrix */ +/* unused harmony reexport mat2 */ +/* unused harmony reexport mat2d */ +/* unused harmony reexport mat3 */ +/* harmony reexport (module object) */ __webpack_require__.d(__webpack_exports__, "a", function() { return __WEBPACK_IMPORTED_MODULE_4__gl_matrix_mat4__; }); +/* unused harmony reexport quat */ +/* unused harmony reexport vec2 */ +/* harmony reexport (module object) */ __webpack_require__.d(__webpack_exports__, "b", function() { return __WEBPACK_IMPORTED_MODULE_7__gl_matrix_vec3__; }); +/* harmony reexport (module object) */ __webpack_require__.d(__webpack_exports__, "c", function() { return __WEBPACK_IMPORTED_MODULE_8__gl_matrix_vec4__; }); +/** + * @fileoverview gl-matrix - High performance matrix and vector operations + * @author Brandon Jones + * @author Colin MacKenzie IV + * @version 2.4.0 + */ + +/* Copyright (c) 2015, Brandon Jones, Colin MacKenzie IV. + +Permission is hereby granted, free of charge, to any person obtaining a copy +of this software and associated documentation files (the "Software"), to deal +in the Software without restriction, including without limitation the rights +to use, copy, modify, merge, publish, distribute, sublicense, and/or sell +copies of the Software, and to permit persons to whom the Software is +furnished to do so, subject to the following conditions: + +The above copyright notice and this permission notice shall be included in +all copies or substantial portions of the Software. + +THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR +IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, +FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE +AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER +LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, +OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN +THE SOFTWARE. */ +// END HEADER + + + + + + + + + + + + + +/***/ }), +/* 2 */ +/***/ (function(module, __webpack_exports__, __webpack_require__) { + +"use strict"; +/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, "a", function() { return gl; }); +/* harmony export (immutable) */ __webpack_exports__["b"] = setGL; +var gl; +function setGL(_gl) { + gl = _gl; +} + + +/***/ }), +/* 3 */ +/***/ (function(module, exports) { + +module.exports = invert; + +/** + * Inverts a mat4 + * + * @param {mat4} out the receiving matrix + * @param {mat4} a the source matrix + * @returns {mat4} out + */ +function invert(out, a) { + var a00 = a[0], a01 = a[1], a02 = a[2], a03 = a[3], + a10 = a[4], a11 = a[5], a12 = a[6], a13 = a[7], + a20 = a[8], a21 = a[9], a22 = a[10], a23 = a[11], + a30 = a[12], a31 = a[13], a32 = a[14], a33 = a[15], + + b00 = a00 * a11 - a01 * a10, + b01 = a00 * a12 - a02 * a10, + b02 = a00 * a13 - a03 * a10, + b03 = a01 * a12 - a02 * a11, + b04 = a01 * a13 - a03 * a11, + b05 = a02 * a13 - a03 * a12, + b06 = a20 * a31 - a21 * a30, + b07 = a20 * a32 - a22 * a30, + b08 = a20 * a33 - a23 * a30, + b09 = a21 * a32 - a22 * a31, + b10 = a21 * a33 - a23 * a31, + b11 = a22 * a33 - a23 * a32, + + // Calculate the determinant + det = b00 * b11 - b01 * b10 + b02 * b09 + b03 * b08 - b04 * b07 + b05 * b06; + + if (!det) { + return null; + } + det = 1.0 / det; + + out[0] = (a11 * b11 - a12 * b10 + a13 * b09) * det; + out[1] = (a02 * b10 - a01 * b11 - a03 * b09) * det; + out[2] = (a31 * b05 - a32 * b04 + a33 * b03) * det; + out[3] = (a22 * b04 - a21 * b05 - a23 * b03) * det; + out[4] = (a12 * b08 - a10 * b11 - a13 * b07) * det; + out[5] = (a00 * b11 - a02 * b08 + a03 * b07) * det; + out[6] = (a32 * b02 - a30 * b05 - a33 * b01) * det; + out[7] = (a20 * b05 - a22 * b02 + a23 * b01) * det; + out[8] = (a10 * b10 - a11 * b08 + a13 * b06) * det; + out[9] = (a01 * b08 - a00 * b10 - a03 * b06) * det; + out[10] = (a30 * b04 - a31 * b02 + a33 * b00) * det; + out[11] = (a21 * b02 - a20 * b04 - a23 * b00) * det; + out[12] = (a11 * b07 - a10 * b09 - a12 * b06) * det; + out[13] = (a00 * b09 - a01 * b07 + a02 * b06) * det; + out[14] = (a31 * b01 - a30 * b03 - a32 * b00) * det; + out[15] = (a20 * b03 - a21 * b01 + a22 * b00) * det; + + return out; +}; + +/***/ }), +/* 4 */ +/***/ (function(module, exports) { + +module.exports = normalize; + +/** + * Normalize a vec3 + * + * @param {vec3} out the receiving vector + * @param {vec3} a vector to normalize + * @returns {vec3} out + */ +function normalize(out, a) { + var x = a[0], + y = a[1], + z = a[2] + var len = x*x + y*y + z*z + if (len > 0) { + //TODO: evaluate use of glm_invsqrt here? + len = 1 / Math.sqrt(len) + out[0] = a[0] * len + out[1] = a[1] * len + out[2] = a[2] * len + } + return out +} + +/***/ }), +/* 5 */ +/***/ (function(module, __webpack_exports__, __webpack_require__) { + +"use strict"; +/* harmony export (immutable) */ __webpack_exports__["a"] = create; +/* unused harmony export fromMat4 */ +/* unused harmony export clone */ +/* unused harmony export copy */ +/* unused harmony export fromValues */ +/* unused harmony export set */ +/* unused harmony export identity */ +/* unused harmony export transpose */ +/* unused harmony export invert */ +/* unused harmony export adjoint */ +/* unused harmony export determinant */ +/* unused harmony export multiply */ +/* unused harmony export translate */ +/* unused harmony export rotate */ +/* unused harmony export scale */ +/* unused harmony export fromTranslation */ +/* unused harmony export fromRotation */ +/* unused harmony export fromScaling */ +/* unused harmony export fromMat2d */ +/* unused harmony export fromQuat */ +/* unused harmony export normalFromMat4 */ +/* unused harmony export projection */ +/* unused harmony export str */ +/* unused harmony export frob */ +/* unused harmony export add */ +/* unused harmony export subtract */ +/* unused harmony export multiplyScalar */ +/* unused harmony export multiplyScalarAndAdd */ +/* unused harmony export exactEquals */ +/* unused harmony export equals */ +/* harmony import */ var __WEBPACK_IMPORTED_MODULE_0__common__ = __webpack_require__(0); +/* Copyright (c) 2015, Brandon Jones, Colin MacKenzie IV. + +Permission is hereby granted, free of charge, to any person obtaining a copy +of this software and associated documentation files (the "Software"), to deal +in the Software without restriction, including without limitation the rights +to use, copy, modify, merge, publish, distribute, sublicense, and/or sell +copies of the Software, and to permit persons to whom the Software is +furnished to do so, subject to the following conditions: + +The above copyright notice and this permission notice shall be included in +all copies or substantial portions of the Software. + +THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR +IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, +FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE +AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER +LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, +OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN +THE SOFTWARE. */ + + + +/** + * 3x3 Matrix + * @module mat3 + */ + +/** + * Creates a new identity mat3 + * + * @returns {mat3} a new 3x3 matrix + */ +function create() { + let out = new __WEBPACK_IMPORTED_MODULE_0__common__["a" /* ARRAY_TYPE */](9); + out[0] = 1; + out[1] = 0; + out[2] = 0; + out[3] = 0; + out[4] = 1; + out[5] = 0; + out[6] = 0; + out[7] = 0; + out[8] = 1; + return out; +} + +/** + * Copies the upper-left 3x3 values into the given mat3. + * + * @param {mat3} out the receiving 3x3 matrix + * @param {mat4} a the source 4x4 matrix + * @returns {mat3} out + */ +function fromMat4(out, a) { + out[0] = a[0]; + out[1] = a[1]; + out[2] = a[2]; + out[3] = a[4]; + out[4] = a[5]; + out[5] = a[6]; + out[6] = a[8]; + out[7] = a[9]; + out[8] = a[10]; + return out; +} + +/** + * Creates a new mat3 initialized with values from an existing matrix + * + * @param {mat3} a matrix to clone + * @returns {mat3} a new 3x3 matrix + */ +function clone(a) { + let out = new __WEBPACK_IMPORTED_MODULE_0__common__["a" /* ARRAY_TYPE */](9); + out[0] = a[0]; + out[1] = a[1]; + out[2] = a[2]; + out[3] = a[3]; + out[4] = a[4]; + out[5] = a[5]; + out[6] = a[6]; + out[7] = a[7]; + out[8] = a[8]; + return out; +} + +/** + * Copy the values from one mat3 to another + * + * @param {mat3} out the receiving matrix + * @param {mat3} a the source matrix + * @returns {mat3} out + */ +function copy(out, a) { + out[0] = a[0]; + out[1] = a[1]; + out[2] = a[2]; + out[3] = a[3]; + out[4] = a[4]; + out[5] = a[5]; + out[6] = a[6]; + out[7] = a[7]; + out[8] = a[8]; + return out; +} + +/** + * Create a new mat3 with the given values + * + * @param {Number} m00 Component in column 0, row 0 position (index 0) + * @param {Number} m01 Component in column 0, row 1 position (index 1) + * @param {Number} m02 Component in column 0, row 2 position (index 2) + * @param {Number} m10 Component in column 1, row 0 position (index 3) + * @param {Number} m11 Component in column 1, row 1 position (index 4) + * @param {Number} m12 Component in column 1, row 2 position (index 5) + * @param {Number} m20 Component in column 2, row 0 position (index 6) + * @param {Number} m21 Component in column 2, row 1 position (index 7) + * @param {Number} m22 Component in column 2, row 2 position (index 8) + * @returns {mat3} A new mat3 + */ +function fromValues(m00, m01, m02, m10, m11, m12, m20, m21, m22) { + let out = new __WEBPACK_IMPORTED_MODULE_0__common__["a" /* ARRAY_TYPE */](9); + out[0] = m00; + out[1] = m01; + out[2] = m02; + out[3] = m10; + out[4] = m11; + out[5] = m12; + out[6] = m20; + out[7] = m21; + out[8] = m22; + return out; +} + +/** + * Set the components of a mat3 to the given values + * + * @param {mat3} out the receiving matrix + * @param {Number} m00 Component in column 0, row 0 position (index 0) + * @param {Number} m01 Component in column 0, row 1 position (index 1) + * @param {Number} m02 Component in column 0, row 2 position (index 2) + * @param {Number} m10 Component in column 1, row 0 position (index 3) + * @param {Number} m11 Component in column 1, row 1 position (index 4) + * @param {Number} m12 Component in column 1, row 2 position (index 5) + * @param {Number} m20 Component in column 2, row 0 position (index 6) + * @param {Number} m21 Component in column 2, row 1 position (index 7) + * @param {Number} m22 Component in column 2, row 2 position (index 8) + * @returns {mat3} out + */ +function set(out, m00, m01, m02, m10, m11, m12, m20, m21, m22) { + out[0] = m00; + out[1] = m01; + out[2] = m02; + out[3] = m10; + out[4] = m11; + out[5] = m12; + out[6] = m20; + out[7] = m21; + out[8] = m22; + return out; +} + +/** + * Set a mat3 to the identity matrix + * + * @param {mat3} out the receiving matrix + * @returns {mat3} out + */ +function identity(out) { + out[0] = 1; + out[1] = 0; + out[2] = 0; + out[3] = 0; + out[4] = 1; + out[5] = 0; + out[6] = 0; + out[7] = 0; + out[8] = 1; + return out; +} + +/** + * Transpose the values of a mat3 + * + * @param {mat3} out the receiving matrix + * @param {mat3} a the source matrix + * @returns {mat3} out + */ +function transpose(out, a) { + // If we are transposing ourselves we can skip a few steps but have to cache some values + if (out === a) { + let a01 = a[1], a02 = a[2], a12 = a[5]; + out[1] = a[3]; + out[2] = a[6]; + out[3] = a01; + out[5] = a[7]; + out[6] = a02; + out[7] = a12; + } else { + out[0] = a[0]; + out[1] = a[3]; + out[2] = a[6]; + out[3] = a[1]; + out[4] = a[4]; + out[5] = a[7]; + out[6] = a[2]; + out[7] = a[5]; + out[8] = a[8]; + } + + return out; +} + +/** + * Inverts a mat3 + * + * @param {mat3} out the receiving matrix + * @param {mat3} a the source matrix + * @returns {mat3} out + */ +function invert(out, a) { + let a00 = a[0], a01 = a[1], a02 = a[2]; + let a10 = a[3], a11 = a[4], a12 = a[5]; + let a20 = a[6], a21 = a[7], a22 = a[8]; + + let b01 = a22 * a11 - a12 * a21; + let b11 = -a22 * a10 + a12 * a20; + let b21 = a21 * a10 - a11 * a20; + + // Calculate the determinant + let det = a00 * b01 + a01 * b11 + a02 * b21; + + if (!det) { + return null; + } + det = 1.0 / det; + + out[0] = b01 * det; + out[1] = (-a22 * a01 + a02 * a21) * det; + out[2] = (a12 * a01 - a02 * a11) * det; + out[3] = b11 * det; + out[4] = (a22 * a00 - a02 * a20) * det; + out[5] = (-a12 * a00 + a02 * a10) * det; + out[6] = b21 * det; + out[7] = (-a21 * a00 + a01 * a20) * det; + out[8] = (a11 * a00 - a01 * a10) * det; + return out; +} + +/** + * Calculates the adjugate of a mat3 + * + * @param {mat3} out the receiving matrix + * @param {mat3} a the source matrix + * @returns {mat3} out + */ +function adjoint(out, a) { + let a00 = a[0], a01 = a[1], a02 = a[2]; + let a10 = a[3], a11 = a[4], a12 = a[5]; + let a20 = a[6], a21 = a[7], a22 = a[8]; + + out[0] = (a11 * a22 - a12 * a21); + out[1] = (a02 * a21 - a01 * a22); + out[2] = (a01 * a12 - a02 * a11); + out[3] = (a12 * a20 - a10 * a22); + out[4] = (a00 * a22 - a02 * a20); + out[5] = (a02 * a10 - a00 * a12); + out[6] = (a10 * a21 - a11 * a20); + out[7] = (a01 * a20 - a00 * a21); + out[8] = (a00 * a11 - a01 * a10); + return out; +} + +/** + * Calculates the determinant of a mat3 + * + * @param {mat3} a the source matrix + * @returns {Number} determinant of a + */ +function determinant(a) { + let a00 = a[0], a01 = a[1], a02 = a[2]; + let a10 = a[3], a11 = a[4], a12 = a[5]; + let a20 = a[6], a21 = a[7], a22 = a[8]; + + return a00 * (a22 * a11 - a12 * a21) + a01 * (-a22 * a10 + a12 * a20) + a02 * (a21 * a10 - a11 * a20); +} + +/** + * Multiplies two mat3's + * + * @param {mat3} out the receiving matrix + * @param {mat3} a the first operand + * @param {mat3} b the second operand + * @returns {mat3} out + */ +function multiply(out, a, b) { + let a00 = a[0], a01 = a[1], a02 = a[2]; + let a10 = a[3], a11 = a[4], a12 = a[5]; + let a20 = a[6], a21 = a[7], a22 = a[8]; + + let b00 = b[0], b01 = b[1], b02 = b[2]; + let b10 = b[3], b11 = b[4], b12 = b[5]; + let b20 = b[6], b21 = b[7], b22 = b[8]; + + out[0] = b00 * a00 + b01 * a10 + b02 * a20; + out[1] = b00 * a01 + b01 * a11 + b02 * a21; + out[2] = b00 * a02 + b01 * a12 + b02 * a22; + + out[3] = b10 * a00 + b11 * a10 + b12 * a20; + out[4] = b10 * a01 + b11 * a11 + b12 * a21; + out[5] = b10 * a02 + b11 * a12 + b12 * a22; + + out[6] = b20 * a00 + b21 * a10 + b22 * a20; + out[7] = b20 * a01 + b21 * a11 + b22 * a21; + out[8] = b20 * a02 + b21 * a12 + b22 * a22; + return out; +} + +/** + * Translate a mat3 by the given vector + * + * @param {mat3} out the receiving matrix + * @param {mat3} a the matrix to translate + * @param {vec2} v vector to translate by + * @returns {mat3} out + */ +function translate(out, a, v) { + let a00 = a[0], a01 = a[1], a02 = a[2], + a10 = a[3], a11 = a[4], a12 = a[5], + a20 = a[6], a21 = a[7], a22 = a[8], + x = v[0], y = v[1]; + + out[0] = a00; + out[1] = a01; + out[2] = a02; + + out[3] = a10; + out[4] = a11; + out[5] = a12; + + out[6] = x * a00 + y * a10 + a20; + out[7] = x * a01 + y * a11 + a21; + out[8] = x * a02 + y * a12 + a22; + return out; +} + +/** + * Rotates a mat3 by the given angle + * + * @param {mat3} out the receiving matrix + * @param {mat3} a the matrix to rotate + * @param {Number} rad the angle to rotate the matrix by + * @returns {mat3} out + */ +function rotate(out, a, rad) { + let a00 = a[0], a01 = a[1], a02 = a[2], + a10 = a[3], a11 = a[4], a12 = a[5], + a20 = a[6], a21 = a[7], a22 = a[8], + + s = Math.sin(rad), + c = Math.cos(rad); + + out[0] = c * a00 + s * a10; + out[1] = c * a01 + s * a11; + out[2] = c * a02 + s * a12; + + out[3] = c * a10 - s * a00; + out[4] = c * a11 - s * a01; + out[5] = c * a12 - s * a02; + + out[6] = a20; + out[7] = a21; + out[8] = a22; + return out; +}; + +/** + * Scales the mat3 by the dimensions in the given vec2 + * + * @param {mat3} out the receiving matrix + * @param {mat3} a the matrix to rotate + * @param {vec2} v the vec2 to scale the matrix by + * @returns {mat3} out + **/ +function scale(out, a, v) { + let x = v[0], y = v[1]; + + out[0] = x * a[0]; + out[1] = x * a[1]; + out[2] = x * a[2]; + + out[3] = y * a[3]; + out[4] = y * a[4]; + out[5] = y * a[5]; + + out[6] = a[6]; + out[7] = a[7]; + out[8] = a[8]; + return out; +} + +/** + * Creates a matrix from a vector translation + * This is equivalent to (but much faster than): + * + * mat3.identity(dest); + * mat3.translate(dest, dest, vec); + * + * @param {mat3} out mat3 receiving operation result + * @param {vec2} v Translation vector + * @returns {mat3} out + */ +function fromTranslation(out, v) { + out[0] = 1; + out[1] = 0; + out[2] = 0; + out[3] = 0; + out[4] = 1; + out[5] = 0; + out[6] = v[0]; + out[7] = v[1]; + out[8] = 1; + return out; +} + +/** + * Creates a matrix from a given angle + * This is equivalent to (but much faster than): + * + * mat3.identity(dest); + * mat3.rotate(dest, dest, rad); + * + * @param {mat3} out mat3 receiving operation result + * @param {Number} rad the angle to rotate the matrix by + * @returns {mat3} out + */ +function fromRotation(out, rad) { + let s = Math.sin(rad), c = Math.cos(rad); + + out[0] = c; + out[1] = s; + out[2] = 0; + + out[3] = -s; + out[4] = c; + out[5] = 0; + + out[6] = 0; + out[7] = 0; + out[8] = 1; + return out; +} + +/** + * Creates a matrix from a vector scaling + * This is equivalent to (but much faster than): + * + * mat3.identity(dest); + * mat3.scale(dest, dest, vec); + * + * @param {mat3} out mat3 receiving operation result + * @param {vec2} v Scaling vector + * @returns {mat3} out + */ +function fromScaling(out, v) { + out[0] = v[0]; + out[1] = 0; + out[2] = 0; + + out[3] = 0; + out[4] = v[1]; + out[5] = 0; + + out[6] = 0; + out[7] = 0; + out[8] = 1; + return out; +} + +/** + * Copies the values from a mat2d into a mat3 + * + * @param {mat3} out the receiving matrix + * @param {mat2d} a the matrix to copy + * @returns {mat3} out + **/ +function fromMat2d(out, a) { + out[0] = a[0]; + out[1] = a[1]; + out[2] = 0; + + out[3] = a[2]; + out[4] = a[3]; + out[5] = 0; + + out[6] = a[4]; + out[7] = a[5]; + out[8] = 1; + return out; +} + +/** +* Calculates a 3x3 matrix from the given quaternion +* +* @param {mat3} out mat3 receiving operation result +* @param {quat} q Quaternion to create matrix from +* +* @returns {mat3} out +*/ +function fromQuat(out, q) { + let x = q[0], y = q[1], z = q[2], w = q[3]; + let x2 = x + x; + let y2 = y + y; + let z2 = z + z; + + let xx = x * x2; + let yx = y * x2; + let yy = y * y2; + let zx = z * x2; + let zy = z * y2; + let zz = z * z2; + let wx = w * x2; + let wy = w * y2; + let wz = w * z2; + + out[0] = 1 - yy - zz; + out[3] = yx - wz; + out[6] = zx + wy; + + out[1] = yx + wz; + out[4] = 1 - xx - zz; + out[7] = zy - wx; + + out[2] = zx - wy; + out[5] = zy + wx; + out[8] = 1 - xx - yy; + + return out; +} + +/** +* Calculates a 3x3 normal matrix (transpose inverse) from the 4x4 matrix +* +* @param {mat3} out mat3 receiving operation result +* @param {mat4} a Mat4 to derive the normal matrix from +* +* @returns {mat3} out +*/ +function normalFromMat4(out, a) { + let a00 = a[0], a01 = a[1], a02 = a[2], a03 = a[3]; + let a10 = a[4], a11 = a[5], a12 = a[6], a13 = a[7]; + let a20 = a[8], a21 = a[9], a22 = a[10], a23 = a[11]; + let a30 = a[12], a31 = a[13], a32 = a[14], a33 = a[15]; + + let b00 = a00 * a11 - a01 * a10; + let b01 = a00 * a12 - a02 * a10; + let b02 = a00 * a13 - a03 * a10; + let b03 = a01 * a12 - a02 * a11; + let b04 = a01 * a13 - a03 * a11; + let b05 = a02 * a13 - a03 * a12; + let b06 = a20 * a31 - a21 * a30; + let b07 = a20 * a32 - a22 * a30; + let b08 = a20 * a33 - a23 * a30; + let b09 = a21 * a32 - a22 * a31; + let b10 = a21 * a33 - a23 * a31; + let b11 = a22 * a33 - a23 * a32; + + // Calculate the determinant + let det = b00 * b11 - b01 * b10 + b02 * b09 + b03 * b08 - b04 * b07 + b05 * b06; + + if (!det) { + return null; + } + det = 1.0 / det; + + out[0] = (a11 * b11 - a12 * b10 + a13 * b09) * det; + out[1] = (a12 * b08 - a10 * b11 - a13 * b07) * det; + out[2] = (a10 * b10 - a11 * b08 + a13 * b06) * det; + + out[3] = (a02 * b10 - a01 * b11 - a03 * b09) * det; + out[4] = (a00 * b11 - a02 * b08 + a03 * b07) * det; + out[5] = (a01 * b08 - a00 * b10 - a03 * b06) * det; + + out[6] = (a31 * b05 - a32 * b04 + a33 * b03) * det; + out[7] = (a32 * b02 - a30 * b05 - a33 * b01) * det; + out[8] = (a30 * b04 - a31 * b02 + a33 * b00) * det; + + return out; +} + +/** + * Generates a 2D projection matrix with the given bounds + * + * @param {mat3} out mat3 frustum matrix will be written into + * @param {number} width Width of your gl context + * @param {number} height Height of gl context + * @returns {mat3} out + */ +function projection(out, width, height) { + out[0] = 2 / width; + out[1] = 0; + out[2] = 0; + out[3] = 0; + out[4] = -2 / height; + out[5] = 0; + out[6] = -1; + out[7] = 1; + out[8] = 1; + return out; +} + +/** + * Returns a string representation of a mat3 + * + * @param {mat3} a matrix to represent as a string + * @returns {String} string representation of the matrix + */ +function str(a) { + return 'mat3(' + a[0] + ', ' + a[1] + ', ' + a[2] + ', ' + + a[3] + ', ' + a[4] + ', ' + a[5] + ', ' + + a[6] + ', ' + a[7] + ', ' + a[8] + ')'; +} + +/** + * Returns Frobenius norm of a mat3 + * + * @param {mat3} a the matrix to calculate Frobenius norm of + * @returns {Number} Frobenius norm + */ +function frob(a) { + return(Math.sqrt(Math.pow(a[0], 2) + Math.pow(a[1], 2) + Math.pow(a[2], 2) + Math.pow(a[3], 2) + Math.pow(a[4], 2) + Math.pow(a[5], 2) + Math.pow(a[6], 2) + Math.pow(a[7], 2) + Math.pow(a[8], 2))) +} + +/** + * Adds two mat3's + * + * @param {mat3} out the receiving matrix + * @param {mat3} a the first operand + * @param {mat3} b the second operand + * @returns {mat3} out + */ +function add(out, a, b) { + out[0] = a[0] + b[0]; + out[1] = a[1] + b[1]; + out[2] = a[2] + b[2]; + out[3] = a[3] + b[3]; + out[4] = a[4] + b[4]; + out[5] = a[5] + b[5]; + out[6] = a[6] + b[6]; + out[7] = a[7] + b[7]; + out[8] = a[8] + b[8]; + return out; +} + +/** + * Subtracts matrix b from matrix a + * + * @param {mat3} out the receiving matrix + * @param {mat3} a the first operand + * @param {mat3} b the second operand + * @returns {mat3} out + */ +function subtract(out, a, b) { + out[0] = a[0] - b[0]; + out[1] = a[1] - b[1]; + out[2] = a[2] - b[2]; + out[3] = a[3] - b[3]; + out[4] = a[4] - b[4]; + out[5] = a[5] - b[5]; + out[6] = a[6] - b[6]; + out[7] = a[7] - b[7]; + out[8] = a[8] - b[8]; + return out; +} + + + +/** + * Multiply each element of the matrix by a scalar. + * + * @param {mat3} out the receiving matrix + * @param {mat3} a the matrix to scale + * @param {Number} b amount to scale the matrix's elements by + * @returns {mat3} out + */ +function multiplyScalar(out, a, b) { + out[0] = a[0] * b; + out[1] = a[1] * b; + out[2] = a[2] * b; + out[3] = a[3] * b; + out[4] = a[4] * b; + out[5] = a[5] * b; + out[6] = a[6] * b; + out[7] = a[7] * b; + out[8] = a[8] * b; + return out; +} + +/** + * Adds two mat3's after multiplying each element of the second operand by a scalar value. + * + * @param {mat3} out the receiving vector + * @param {mat3} a the first operand + * @param {mat3} b the second operand + * @param {Number} scale the amount to scale b's elements by before adding + * @returns {mat3} out + */ +function multiplyScalarAndAdd(out, a, b, scale) { + out[0] = a[0] + (b[0] * scale); + out[1] = a[1] + (b[1] * scale); + out[2] = a[2] + (b[2] * scale); + out[3] = a[3] + (b[3] * scale); + out[4] = a[4] + (b[4] * scale); + out[5] = a[5] + (b[5] * scale); + out[6] = a[6] + (b[6] * scale); + out[7] = a[7] + (b[7] * scale); + out[8] = a[8] + (b[8] * scale); + return out; +} + +/** + * Returns whether or not the matrices have exactly the same elements in the same position (when compared with ===) + * + * @param {mat3} a The first matrix. + * @param {mat3} b The second matrix. + * @returns {Boolean} True if the matrices are equal, false otherwise. + */ +function exactEquals(a, b) { + return a[0] === b[0] && a[1] === b[1] && a[2] === b[2] && + a[3] === b[3] && a[4] === b[4] && a[5] === b[5] && + a[6] === b[6] && a[7] === b[7] && a[8] === b[8]; +} + +/** + * Returns whether or not the matrices have approximately the same elements in the same position. + * + * @param {mat3} a The first matrix. + * @param {mat3} b The second matrix. + * @returns {Boolean} True if the matrices are equal, false otherwise. + */ +function equals(a, b) { + let a0 = a[0], a1 = a[1], a2 = a[2], a3 = a[3], a4 = a[4], a5 = a[5], a6 = a[6], a7 = a[7], a8 = a[8]; + let b0 = b[0], b1 = b[1], b2 = b[2], b3 = b[3], b4 = b[4], b5 = b[5], b6 = b[6], b7 = b[7], b8 = b[8]; + return (Math.abs(a0 - b0) <= __WEBPACK_IMPORTED_MODULE_0__common__["b" /* EPSILON */]*Math.max(1.0, Math.abs(a0), Math.abs(b0)) && + Math.abs(a1 - b1) <= __WEBPACK_IMPORTED_MODULE_0__common__["b" /* EPSILON */]*Math.max(1.0, Math.abs(a1), Math.abs(b1)) && + Math.abs(a2 - b2) <= __WEBPACK_IMPORTED_MODULE_0__common__["b" /* EPSILON */]*Math.max(1.0, Math.abs(a2), Math.abs(b2)) && + Math.abs(a3 - b3) <= __WEBPACK_IMPORTED_MODULE_0__common__["b" /* EPSILON */]*Math.max(1.0, Math.abs(a3), Math.abs(b3)) && + Math.abs(a4 - b4) <= __WEBPACK_IMPORTED_MODULE_0__common__["b" /* EPSILON */]*Math.max(1.0, Math.abs(a4), Math.abs(b4)) && + Math.abs(a5 - b5) <= __WEBPACK_IMPORTED_MODULE_0__common__["b" /* EPSILON */]*Math.max(1.0, Math.abs(a5), Math.abs(b5)) && + Math.abs(a6 - b6) <= __WEBPACK_IMPORTED_MODULE_0__common__["b" /* EPSILON */]*Math.max(1.0, Math.abs(a6), Math.abs(b6)) && + Math.abs(a7 - b7) <= __WEBPACK_IMPORTED_MODULE_0__common__["b" /* EPSILON */]*Math.max(1.0, Math.abs(a7), Math.abs(b7)) && + Math.abs(a8 - b8) <= __WEBPACK_IMPORTED_MODULE_0__common__["b" /* EPSILON */]*Math.max(1.0, Math.abs(a8), Math.abs(b8))); +} + +/** + * Alias for {@link mat3.multiply} + * @function + */ +const mul = multiply; +/* unused harmony export mul */ + + +/** + * Alias for {@link mat3.subtract} + * @function + */ +const sub = subtract; +/* unused harmony export sub */ + + + +/***/ }), +/* 6 */ +/***/ (function(module, __webpack_exports__, __webpack_require__) { + +"use strict"; +Object.defineProperty(__webpack_exports__, "__esModule", { value: true }); +/* harmony export (immutable) */ __webpack_exports__["create"] = create; +/* harmony export (immutable) */ __webpack_exports__["clone"] = clone; +/* harmony export (immutable) */ __webpack_exports__["length"] = length; +/* harmony export (immutable) */ __webpack_exports__["fromValues"] = fromValues; +/* harmony export (immutable) */ __webpack_exports__["copy"] = copy; +/* harmony export (immutable) */ __webpack_exports__["set"] = set; +/* harmony export (immutable) */ __webpack_exports__["add"] = add; +/* harmony export (immutable) */ __webpack_exports__["subtract"] = subtract; +/* harmony export (immutable) */ __webpack_exports__["multiply"] = multiply; +/* harmony export (immutable) */ __webpack_exports__["divide"] = divide; +/* harmony export (immutable) */ __webpack_exports__["ceil"] = ceil; +/* harmony export (immutable) */ __webpack_exports__["floor"] = floor; +/* harmony export (immutable) */ __webpack_exports__["min"] = min; +/* harmony export (immutable) */ __webpack_exports__["max"] = max; +/* harmony export (immutable) */ __webpack_exports__["round"] = round; +/* harmony export (immutable) */ __webpack_exports__["scale"] = scale; +/* harmony export (immutable) */ __webpack_exports__["scaleAndAdd"] = scaleAndAdd; +/* harmony export (immutable) */ __webpack_exports__["distance"] = distance; +/* harmony export (immutable) */ __webpack_exports__["squaredDistance"] = squaredDistance; +/* harmony export (immutable) */ __webpack_exports__["squaredLength"] = squaredLength; +/* harmony export (immutable) */ __webpack_exports__["negate"] = negate; +/* harmony export (immutable) */ __webpack_exports__["inverse"] = inverse; +/* harmony export (immutable) */ __webpack_exports__["normalize"] = normalize; +/* harmony export (immutable) */ __webpack_exports__["dot"] = dot; +/* harmony export (immutable) */ __webpack_exports__["cross"] = cross; +/* harmony export (immutable) */ __webpack_exports__["lerp"] = lerp; +/* harmony export (immutable) */ __webpack_exports__["hermite"] = hermite; +/* harmony export (immutable) */ __webpack_exports__["bezier"] = bezier; +/* harmony export (immutable) */ __webpack_exports__["random"] = random; +/* harmony export (immutable) */ __webpack_exports__["transformMat4"] = transformMat4; +/* harmony export (immutable) */ __webpack_exports__["transformMat3"] = transformMat3; +/* harmony export (immutable) */ __webpack_exports__["transformQuat"] = transformQuat; +/* harmony export (immutable) */ __webpack_exports__["rotateX"] = rotateX; +/* harmony export (immutable) */ __webpack_exports__["rotateY"] = rotateY; +/* harmony export (immutable) */ __webpack_exports__["rotateZ"] = rotateZ; +/* harmony export (immutable) */ __webpack_exports__["angle"] = angle; +/* harmony export (immutable) */ __webpack_exports__["str"] = str; +/* harmony export (immutable) */ __webpack_exports__["exactEquals"] = exactEquals; +/* harmony export (immutable) */ __webpack_exports__["equals"] = equals; +/* harmony import */ var __WEBPACK_IMPORTED_MODULE_0__common__ = __webpack_require__(0); +/* Copyright (c) 2015, Brandon Jones, Colin MacKenzie IV. + +Permission is hereby granted, free of charge, to any person obtaining a copy +of this software and associated documentation files (the "Software"), to deal +in the Software without restriction, including without limitation the rights +to use, copy, modify, merge, publish, distribute, sublicense, and/or sell +copies of the Software, and to permit persons to whom the Software is +furnished to do so, subject to the following conditions: + +The above copyright notice and this permission notice shall be included in +all copies or substantial portions of the Software. + +THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR +IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, +FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE +AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER +LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, +OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN +THE SOFTWARE. */ + + + +/** + * 3 Dimensional Vector + * @module vec3 + */ + +/** + * Creates a new, empty vec3 + * + * @returns {vec3} a new 3D vector + */ +function create() { + let out = new __WEBPACK_IMPORTED_MODULE_0__common__["a" /* ARRAY_TYPE */](3); + out[0] = 0; + out[1] = 0; + out[2] = 0; + return out; +} + +/** + * Creates a new vec3 initialized with values from an existing vector + * + * @param {vec3} a vector to clone + * @returns {vec3} a new 3D vector + */ +function clone(a) { + var out = new __WEBPACK_IMPORTED_MODULE_0__common__["a" /* ARRAY_TYPE */](3); + out[0] = a[0]; + out[1] = a[1]; + out[2] = a[2]; + return out; +} + +/** + * Calculates the length of a vec3 + * + * @param {vec3} a vector to calculate length of + * @returns {Number} length of a + */ +function length(a) { + let x = a[0]; + let y = a[1]; + let z = a[2]; + return Math.sqrt(x*x + y*y + z*z); +} + +/** + * Creates a new vec3 initialized with the given values + * + * @param {Number} x X component + * @param {Number} y Y component + * @param {Number} z Z component + * @returns {vec3} a new 3D vector + */ +function fromValues(x, y, z) { + let out = new __WEBPACK_IMPORTED_MODULE_0__common__["a" /* ARRAY_TYPE */](3); + out[0] = x; + out[1] = y; + out[2] = z; + return out; +} + +/** + * Copy the values from one vec3 to another + * + * @param {vec3} out the receiving vector + * @param {vec3} a the source vector + * @returns {vec3} out + */ +function copy(out, a) { + out[0] = a[0]; + out[1] = a[1]; + out[2] = a[2]; + return out; +} + +/** + * Set the components of a vec3 to the given values + * + * @param {vec3} out the receiving vector + * @param {Number} x X component + * @param {Number} y Y component + * @param {Number} z Z component + * @returns {vec3} out + */ +function set(out, x, y, z) { + out[0] = x; + out[1] = y; + out[2] = z; + return out; +} + +/** + * Adds two vec3's + * + * @param {vec3} out the receiving vector + * @param {vec3} a the first operand + * @param {vec3} b the second operand + * @returns {vec3} out + */ +function add(out, a, b) { + out[0] = a[0] + b[0]; + out[1] = a[1] + b[1]; + out[2] = a[2] + b[2]; + return out; +} + +/** + * Subtracts vector b from vector a + * + * @param {vec3} out the receiving vector + * @param {vec3} a the first operand + * @param {vec3} b the second operand + * @returns {vec3} out + */ +function subtract(out, a, b) { + out[0] = a[0] - b[0]; + out[1] = a[1] - b[1]; + out[2] = a[2] - b[2]; + return out; +} + +/** + * Multiplies two vec3's + * + * @param {vec3} out the receiving vector + * @param {vec3} a the first operand + * @param {vec3} b the second operand + * @returns {vec3} out + */ +function multiply(out, a, b) { + out[0] = a[0] * b[0]; + out[1] = a[1] * b[1]; + out[2] = a[2] * b[2]; + return out; +} + +/** + * Divides two vec3's + * + * @param {vec3} out the receiving vector + * @param {vec3} a the first operand + * @param {vec3} b the second operand + * @returns {vec3} out + */ +function divide(out, a, b) { + out[0] = a[0] / b[0]; + out[1] = a[1] / b[1]; + out[2] = a[2] / b[2]; + return out; +} + +/** + * Math.ceil the components of a vec3 + * + * @param {vec3} out the receiving vector + * @param {vec3} a vector to ceil + * @returns {vec3} out + */ +function ceil(out, a) { + out[0] = Math.ceil(a[0]); + out[1] = Math.ceil(a[1]); + out[2] = Math.ceil(a[2]); + return out; +} + +/** + * Math.floor the components of a vec3 + * + * @param {vec3} out the receiving vector + * @param {vec3} a vector to floor + * @returns {vec3} out + */ +function floor(out, a) { + out[0] = Math.floor(a[0]); + out[1] = Math.floor(a[1]); + out[2] = Math.floor(a[2]); + return out; +} + +/** + * Returns the minimum of two vec3's + * + * @param {vec3} out the receiving vector + * @param {vec3} a the first operand + * @param {vec3} b the second operand + * @returns {vec3} out + */ +function min(out, a, b) { + out[0] = Math.min(a[0], b[0]); + out[1] = Math.min(a[1], b[1]); + out[2] = Math.min(a[2], b[2]); + return out; +} + +/** + * Returns the maximum of two vec3's + * + * @param {vec3} out the receiving vector + * @param {vec3} a the first operand + * @param {vec3} b the second operand + * @returns {vec3} out + */ +function max(out, a, b) { + out[0] = Math.max(a[0], b[0]); + out[1] = Math.max(a[1], b[1]); + out[2] = Math.max(a[2], b[2]); + return out; +} + +/** + * Math.round the components of a vec3 + * + * @param {vec3} out the receiving vector + * @param {vec3} a vector to round + * @returns {vec3} out + */ +function round(out, a) { + out[0] = Math.round(a[0]); + out[1] = Math.round(a[1]); + out[2] = Math.round(a[2]); + return out; +} + +/** + * Scales a vec3 by a scalar number + * + * @param {vec3} out the receiving vector + * @param {vec3} a the vector to scale + * @param {Number} b amount to scale the vector by + * @returns {vec3} out + */ +function scale(out, a, b) { + out[0] = a[0] * b; + out[1] = a[1] * b; + out[2] = a[2] * b; + return out; +} + +/** + * Adds two vec3's after scaling the second operand by a scalar value + * + * @param {vec3} out the receiving vector + * @param {vec3} a the first operand + * @param {vec3} b the second operand + * @param {Number} scale the amount to scale b by before adding + * @returns {vec3} out + */ +function scaleAndAdd(out, a, b, scale) { + out[0] = a[0] + (b[0] * scale); + out[1] = a[1] + (b[1] * scale); + out[2] = a[2] + (b[2] * scale); + return out; +} + +/** + * Calculates the euclidian distance between two vec3's + * + * @param {vec3} a the first operand + * @param {vec3} b the second operand + * @returns {Number} distance between a and b + */ +function distance(a, b) { + let x = b[0] - a[0]; + let y = b[1] - a[1]; + let z = b[2] - a[2]; + return Math.sqrt(x*x + y*y + z*z); +} + +/** + * Calculates the squared euclidian distance between two vec3's + * + * @param {vec3} a the first operand + * @param {vec3} b the second operand + * @returns {Number} squared distance between a and b + */ +function squaredDistance(a, b) { + let x = b[0] - a[0]; + let y = b[1] - a[1]; + let z = b[2] - a[2]; + return x*x + y*y + z*z; +} + +/** + * Calculates the squared length of a vec3 + * + * @param {vec3} a vector to calculate squared length of + * @returns {Number} squared length of a + */ +function squaredLength(a) { + let x = a[0]; + let y = a[1]; + let z = a[2]; + return x*x + y*y + z*z; +} + +/** + * Negates the components of a vec3 + * + * @param {vec3} out the receiving vector + * @param {vec3} a vector to negate + * @returns {vec3} out + */ +function negate(out, a) { + out[0] = -a[0]; + out[1] = -a[1]; + out[2] = -a[2]; + return out; +} + +/** + * Returns the inverse of the components of a vec3 + * + * @param {vec3} out the receiving vector + * @param {vec3} a vector to invert + * @returns {vec3} out + */ +function inverse(out, a) { + out[0] = 1.0 / a[0]; + out[1] = 1.0 / a[1]; + out[2] = 1.0 / a[2]; + return out; +} + +/** + * Normalize a vec3 + * + * @param {vec3} out the receiving vector + * @param {vec3} a vector to normalize + * @returns {vec3} out + */ +function normalize(out, a) { + let x = a[0]; + let y = a[1]; + let z = a[2]; + let len = x*x + y*y + z*z; + if (len > 0) { + //TODO: evaluate use of glm_invsqrt here? + len = 1 / Math.sqrt(len); + out[0] = a[0] * len; + out[1] = a[1] * len; + out[2] = a[2] * len; + } + return out; +} + +/** + * Calculates the dot product of two vec3's + * + * @param {vec3} a the first operand + * @param {vec3} b the second operand + * @returns {Number} dot product of a and b + */ +function dot(a, b) { + return a[0] * b[0] + a[1] * b[1] + a[2] * b[2]; +} + +/** + * Computes the cross product of two vec3's + * + * @param {vec3} out the receiving vector + * @param {vec3} a the first operand + * @param {vec3} b the second operand + * @returns {vec3} out + */ +function cross(out, a, b) { + let ax = a[0], ay = a[1], az = a[2]; + let bx = b[0], by = b[1], bz = b[2]; + + out[0] = ay * bz - az * by; + out[1] = az * bx - ax * bz; + out[2] = ax * by - ay * bx; + return out; +} + +/** + * Performs a linear interpolation between two vec3's + * + * @param {vec3} out the receiving vector + * @param {vec3} a the first operand + * @param {vec3} b the second operand + * @param {Number} t interpolation amount between the two inputs + * @returns {vec3} out + */ +function lerp(out, a, b, t) { + let ax = a[0]; + let ay = a[1]; + let az = a[2]; + out[0] = ax + t * (b[0] - ax); + out[1] = ay + t * (b[1] - ay); + out[2] = az + t * (b[2] - az); + return out; +} + +/** + * Performs a hermite interpolation with two control points + * + * @param {vec3} out the receiving vector + * @param {vec3} a the first operand + * @param {vec3} b the second operand + * @param {vec3} c the third operand + * @param {vec3} d the fourth operand + * @param {Number} t interpolation amount between the two inputs + * @returns {vec3} out + */ +function hermite(out, a, b, c, d, t) { + let factorTimes2 = t * t; + let factor1 = factorTimes2 * (2 * t - 3) + 1; + let factor2 = factorTimes2 * (t - 2) + t; + let factor3 = factorTimes2 * (t - 1); + let factor4 = factorTimes2 * (3 - 2 * t); + + out[0] = a[0] * factor1 + b[0] * factor2 + c[0] * factor3 + d[0] * factor4; + out[1] = a[1] * factor1 + b[1] * factor2 + c[1] * factor3 + d[1] * factor4; + out[2] = a[2] * factor1 + b[2] * factor2 + c[2] * factor3 + d[2] * factor4; + + return out; +} + +/** + * Performs a bezier interpolation with two control points + * + * @param {vec3} out the receiving vector + * @param {vec3} a the first operand + * @param {vec3} b the second operand + * @param {vec3} c the third operand + * @param {vec3} d the fourth operand + * @param {Number} t interpolation amount between the two inputs + * @returns {vec3} out + */ +function bezier(out, a, b, c, d, t) { + let inverseFactor = 1 - t; + let inverseFactorTimesTwo = inverseFactor * inverseFactor; + let factorTimes2 = t * t; + let factor1 = inverseFactorTimesTwo * inverseFactor; + let factor2 = 3 * t * inverseFactorTimesTwo; + let factor3 = 3 * factorTimes2 * inverseFactor; + let factor4 = factorTimes2 * t; + + out[0] = a[0] * factor1 + b[0] * factor2 + c[0] * factor3 + d[0] * factor4; + out[1] = a[1] * factor1 + b[1] * factor2 + c[1] * factor3 + d[1] * factor4; + out[2] = a[2] * factor1 + b[2] * factor2 + c[2] * factor3 + d[2] * factor4; + + return out; +} + +/** + * Generates a random vector with the given scale + * + * @param {vec3} out the receiving vector + * @param {Number} [scale] Length of the resulting vector. If ommitted, a unit vector will be returned + * @returns {vec3} out + */ +function random(out, scale) { + scale = scale || 1.0; + + let r = __WEBPACK_IMPORTED_MODULE_0__common__["c" /* RANDOM */]() * 2.0 * Math.PI; + let z = (__WEBPACK_IMPORTED_MODULE_0__common__["c" /* RANDOM */]() * 2.0) - 1.0; + let zScale = Math.sqrt(1.0-z*z) * scale; + + out[0] = Math.cos(r) * zScale; + out[1] = Math.sin(r) * zScale; + out[2] = z * scale; + return out; +} + +/** + * Transforms the vec3 with a mat4. + * 4th vector component is implicitly '1' + * + * @param {vec3} out the receiving vector + * @param {vec3} a the vector to transform + * @param {mat4} m matrix to transform with + * @returns {vec3} out + */ +function transformMat4(out, a, m) { + let x = a[0], y = a[1], z = a[2]; + let w = m[3] * x + m[7] * y + m[11] * z + m[15]; + w = w || 1.0; + out[0] = (m[0] * x + m[4] * y + m[8] * z + m[12]) / w; + out[1] = (m[1] * x + m[5] * y + m[9] * z + m[13]) / w; + out[2] = (m[2] * x + m[6] * y + m[10] * z + m[14]) / w; + return out; +} + +/** + * Transforms the vec3 with a mat3. + * + * @param {vec3} out the receiving vector + * @param {vec3} a the vector to transform + * @param {mat3} m the 3x3 matrix to transform with + * @returns {vec3} out + */ +function transformMat3(out, a, m) { + let x = a[0], y = a[1], z = a[2]; + out[0] = x * m[0] + y * m[3] + z * m[6]; + out[1] = x * m[1] + y * m[4] + z * m[7]; + out[2] = x * m[2] + y * m[5] + z * m[8]; + return out; +} + +/** + * Transforms the vec3 with a quat + * + * @param {vec3} out the receiving vector + * @param {vec3} a the vector to transform + * @param {quat} q quaternion to transform with + * @returns {vec3} out + */ +function transformQuat(out, a, q) { + // benchmarks: http://jsperf.com/quaternion-transform-vec3-implementations + + let x = a[0], y = a[1], z = a[2]; + let qx = q[0], qy = q[1], qz = q[2], qw = q[3]; + + // calculate quat * vec + let ix = qw * x + qy * z - qz * y; + let iy = qw * y + qz * x - qx * z; + let iz = qw * z + qx * y - qy * x; + let iw = -qx * x - qy * y - qz * z; + + // calculate result * inverse quat + out[0] = ix * qw + iw * -qx + iy * -qz - iz * -qy; + out[1] = iy * qw + iw * -qy + iz * -qx - ix * -qz; + out[2] = iz * qw + iw * -qz + ix * -qy - iy * -qx; + return out; +} + +/** + * Rotate a 3D vector around the x-axis + * @param {vec3} out The receiving vec3 + * @param {vec3} a The vec3 point to rotate + * @param {vec3} b The origin of the rotation + * @param {Number} c The angle of rotation + * @returns {vec3} out + */ +function rotateX(out, a, b, c){ + let p = [], r=[]; + //Translate point to the origin + p[0] = a[0] - b[0]; + p[1] = a[1] - b[1]; + p[2] = a[2] - b[2]; + + //perform rotation + r[0] = p[0]; + r[1] = p[1]*Math.cos(c) - p[2]*Math.sin(c); + r[2] = p[1]*Math.sin(c) + p[2]*Math.cos(c); + + //translate to correct position + out[0] = r[0] + b[0]; + out[1] = r[1] + b[1]; + out[2] = r[2] + b[2]; + + return out; +} + +/** + * Rotate a 3D vector around the y-axis + * @param {vec3} out The receiving vec3 + * @param {vec3} a The vec3 point to rotate + * @param {vec3} b The origin of the rotation + * @param {Number} c The angle of rotation + * @returns {vec3} out + */ +function rotateY(out, a, b, c){ + let p = [], r=[]; + //Translate point to the origin + p[0] = a[0] - b[0]; + p[1] = a[1] - b[1]; + p[2] = a[2] - b[2]; + + //perform rotation + r[0] = p[2]*Math.sin(c) + p[0]*Math.cos(c); + r[1] = p[1]; + r[2] = p[2]*Math.cos(c) - p[0]*Math.sin(c); + + //translate to correct position + out[0] = r[0] + b[0]; + out[1] = r[1] + b[1]; + out[2] = r[2] + b[2]; + + return out; +} + +/** + * Rotate a 3D vector around the z-axis + * @param {vec3} out The receiving vec3 + * @param {vec3} a The vec3 point to rotate + * @param {vec3} b The origin of the rotation + * @param {Number} c The angle of rotation + * @returns {vec3} out + */ +function rotateZ(out, a, b, c){ + let p = [], r=[]; + //Translate point to the origin + p[0] = a[0] - b[0]; + p[1] = a[1] - b[1]; + p[2] = a[2] - b[2]; + + //perform rotation + r[0] = p[0]*Math.cos(c) - p[1]*Math.sin(c); + r[1] = p[0]*Math.sin(c) + p[1]*Math.cos(c); + r[2] = p[2]; + + //translate to correct position + out[0] = r[0] + b[0]; + out[1] = r[1] + b[1]; + out[2] = r[2] + b[2]; + + return out; +} + +/** + * Get the angle between two 3D vectors + * @param {vec3} a The first operand + * @param {vec3} b The second operand + * @returns {Number} The angle in radians + */ +function angle(a, b) { + let tempA = fromValues(a[0], a[1], a[2]); + let tempB = fromValues(b[0], b[1], b[2]); + + normalize(tempA, tempA); + normalize(tempB, tempB); + + let cosine = dot(tempA, tempB); + + if(cosine > 1.0) { + return 0; + } + else if(cosine < -1.0) { + return Math.PI; + } else { + return Math.acos(cosine); + } +} + +/** + * Returns a string representation of a vector + * + * @param {vec3} a vector to represent as a string + * @returns {String} string representation of the vector + */ +function str(a) { + return 'vec3(' + a[0] + ', ' + a[1] + ', ' + a[2] + ')'; +} + +/** + * Returns whether or not the vectors have exactly the same elements in the same position (when compared with ===) + * + * @param {vec3} a The first vector. + * @param {vec3} b The second vector. + * @returns {Boolean} True if the vectors are equal, false otherwise. + */ +function exactEquals(a, b) { + return a[0] === b[0] && a[1] === b[1] && a[2] === b[2]; +} + +/** + * Returns whether or not the vectors have approximately the same elements in the same position. + * + * @param {vec3} a The first vector. + * @param {vec3} b The second vector. + * @returns {Boolean} True if the vectors are equal, false otherwise. + */ +function equals(a, b) { + let a0 = a[0], a1 = a[1], a2 = a[2]; + let b0 = b[0], b1 = b[1], b2 = b[2]; + return (Math.abs(a0 - b0) <= __WEBPACK_IMPORTED_MODULE_0__common__["b" /* EPSILON */]*Math.max(1.0, Math.abs(a0), Math.abs(b0)) && + Math.abs(a1 - b1) <= __WEBPACK_IMPORTED_MODULE_0__common__["b" /* EPSILON */]*Math.max(1.0, Math.abs(a1), Math.abs(b1)) && + Math.abs(a2 - b2) <= __WEBPACK_IMPORTED_MODULE_0__common__["b" /* EPSILON */]*Math.max(1.0, Math.abs(a2), Math.abs(b2))); +} + +/** + * Alias for {@link vec3.subtract} + * @function + */ +const sub = subtract; +/* harmony export (immutable) */ __webpack_exports__["sub"] = sub; + + +/** + * Alias for {@link vec3.multiply} + * @function + */ +const mul = multiply; +/* harmony export (immutable) */ __webpack_exports__["mul"] = mul; + + +/** + * Alias for {@link vec3.divide} + * @function + */ +const div = divide; +/* harmony export (immutable) */ __webpack_exports__["div"] = div; + + +/** + * Alias for {@link vec3.distance} + * @function + */ +const dist = distance; +/* harmony export (immutable) */ __webpack_exports__["dist"] = dist; + + +/** + * Alias for {@link vec3.squaredDistance} + * @function + */ +const sqrDist = squaredDistance; +/* harmony export (immutable) */ __webpack_exports__["sqrDist"] = sqrDist; + + +/** + * Alias for {@link vec3.length} + * @function + */ +const len = length; +/* harmony export (immutable) */ __webpack_exports__["len"] = len; + + +/** + * Alias for {@link vec3.squaredLength} + * @function + */ +const sqrLen = squaredLength; +/* harmony export (immutable) */ __webpack_exports__["sqrLen"] = sqrLen; + + +/** + * Perform some operation over an array of vec3s. + * + * @param {Array} a the array of vectors to iterate over + * @param {Number} stride Number of elements between the start of each vec3. If 0 assumes tightly packed + * @param {Number} offset Number of elements to skip at the beginning of the array + * @param {Number} count Number of vec3s to iterate over. If 0 iterates over entire array + * @param {Function} fn Function to call for each vector in the array + * @param {Object} [arg] additional argument to pass to fn + * @returns {Array} a + * @function + */ +const forEach = (function() { + let vec = create(); + + return function(a, stride, offset, count, fn, arg) { + let i, l; + if(!stride) { + stride = 3; + } + + if(!offset) { + offset = 0; + } + + if(count) { + l = Math.min((count * stride) + offset, a.length); + } else { + l = a.length; + } + + for(i = offset; i < l; i += stride) { + vec[0] = a[i]; vec[1] = a[i+1]; vec[2] = a[i+2]; + fn(vec, vec, arg); + a[i] = vec[0]; a[i+1] = vec[1]; a[i+2] = vec[2]; + } + + return a; + }; +})(); +/* harmony export (immutable) */ __webpack_exports__["forEach"] = forEach; + + + +/***/ }), +/* 7 */ +/***/ (function(module, __webpack_exports__, __webpack_require__) { + +"use strict"; +Object.defineProperty(__webpack_exports__, "__esModule", { value: true }); +/* harmony export (immutable) */ __webpack_exports__["create"] = create; +/* harmony export (immutable) */ __webpack_exports__["clone"] = clone; +/* harmony export (immutable) */ __webpack_exports__["fromValues"] = fromValues; +/* harmony export (immutable) */ __webpack_exports__["copy"] = copy; +/* harmony export (immutable) */ __webpack_exports__["set"] = set; +/* harmony export (immutable) */ __webpack_exports__["add"] = add; +/* harmony export (immutable) */ __webpack_exports__["subtract"] = subtract; +/* harmony export (immutable) */ __webpack_exports__["multiply"] = multiply; +/* harmony export (immutable) */ __webpack_exports__["divide"] = divide; +/* harmony export (immutable) */ __webpack_exports__["ceil"] = ceil; +/* harmony export (immutable) */ __webpack_exports__["floor"] = floor; +/* harmony export (immutable) */ __webpack_exports__["min"] = min; +/* harmony export (immutable) */ __webpack_exports__["max"] = max; +/* harmony export (immutable) */ __webpack_exports__["round"] = round; +/* harmony export (immutable) */ __webpack_exports__["scale"] = scale; +/* harmony export (immutable) */ __webpack_exports__["scaleAndAdd"] = scaleAndAdd; +/* harmony export (immutable) */ __webpack_exports__["distance"] = distance; +/* harmony export (immutable) */ __webpack_exports__["squaredDistance"] = squaredDistance; +/* harmony export (immutable) */ __webpack_exports__["length"] = length; +/* harmony export (immutable) */ __webpack_exports__["squaredLength"] = squaredLength; +/* harmony export (immutable) */ __webpack_exports__["negate"] = negate; +/* harmony export (immutable) */ __webpack_exports__["inverse"] = inverse; +/* harmony export (immutable) */ __webpack_exports__["normalize"] = normalize; +/* harmony export (immutable) */ __webpack_exports__["dot"] = dot; +/* harmony export (immutable) */ __webpack_exports__["lerp"] = lerp; +/* harmony export (immutable) */ __webpack_exports__["random"] = random; +/* harmony export (immutable) */ __webpack_exports__["transformMat4"] = transformMat4; +/* harmony export (immutable) */ __webpack_exports__["transformQuat"] = transformQuat; +/* harmony export (immutable) */ __webpack_exports__["str"] = str; +/* harmony export (immutable) */ __webpack_exports__["exactEquals"] = exactEquals; +/* harmony export (immutable) */ __webpack_exports__["equals"] = equals; +/* harmony import */ var __WEBPACK_IMPORTED_MODULE_0__common__ = __webpack_require__(0); +/* Copyright (c) 2015, Brandon Jones, Colin MacKenzie IV. + +Permission is hereby granted, free of charge, to any person obtaining a copy +of this software and associated documentation files (the "Software"), to deal +in the Software without restriction, including without limitation the rights +to use, copy, modify, merge, publish, distribute, sublicense, and/or sell +copies of the Software, and to permit persons to whom the Software is +furnished to do so, subject to the following conditions: + +The above copyright notice and this permission notice shall be included in +all copies or substantial portions of the Software. + +THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR +IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, +FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE +AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER +LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, +OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN +THE SOFTWARE. */ + + + +/** + * 4 Dimensional Vector + * @module vec4 + */ + +/** + * Creates a new, empty vec4 + * + * @returns {vec4} a new 4D vector + */ +function create() { + let out = new __WEBPACK_IMPORTED_MODULE_0__common__["a" /* ARRAY_TYPE */](4); + out[0] = 0; + out[1] = 0; + out[2] = 0; + out[3] = 0; + return out; +} + +/** + * Creates a new vec4 initialized with values from an existing vector + * + * @param {vec4} a vector to clone + * @returns {vec4} a new 4D vector + */ +function clone(a) { + let out = new __WEBPACK_IMPORTED_MODULE_0__common__["a" /* ARRAY_TYPE */](4); + out[0] = a[0]; + out[1] = a[1]; + out[2] = a[2]; + out[3] = a[3]; + return out; +} + +/** + * Creates a new vec4 initialized with the given values + * + * @param {Number} x X component + * @param {Number} y Y component + * @param {Number} z Z component + * @param {Number} w W component + * @returns {vec4} a new 4D vector + */ +function fromValues(x, y, z, w) { + let out = new __WEBPACK_IMPORTED_MODULE_0__common__["a" /* ARRAY_TYPE */](4); + out[0] = x; + out[1] = y; + out[2] = z; + out[3] = w; + return out; +} + +/** + * Copy the values from one vec4 to another + * + * @param {vec4} out the receiving vector + * @param {vec4} a the source vector + * @returns {vec4} out + */ +function copy(out, a) { + out[0] = a[0]; + out[1] = a[1]; + out[2] = a[2]; + out[3] = a[3]; + return out; +} + +/** + * Set the components of a vec4 to the given values + * + * @param {vec4} out the receiving vector + * @param {Number} x X component + * @param {Number} y Y component + * @param {Number} z Z component + * @param {Number} w W component + * @returns {vec4} out + */ +function set(out, x, y, z, w) { + out[0] = x; + out[1] = y; + out[2] = z; + out[3] = w; + return out; +} + +/** + * Adds two vec4's + * + * @param {vec4} out the receiving vector + * @param {vec4} a the first operand + * @param {vec4} b the second operand + * @returns {vec4} out + */ +function add(out, a, b) { + out[0] = a[0] + b[0]; + out[1] = a[1] + b[1]; + out[2] = a[2] + b[2]; + out[3] = a[3] + b[3]; + return out; +} + +/** + * Subtracts vector b from vector a + * + * @param {vec4} out the receiving vector + * @param {vec4} a the first operand + * @param {vec4} b the second operand + * @returns {vec4} out + */ +function subtract(out, a, b) { + out[0] = a[0] - b[0]; + out[1] = a[1] - b[1]; + out[2] = a[2] - b[2]; + out[3] = a[3] - b[3]; + return out; +} + +/** + * Multiplies two vec4's + * + * @param {vec4} out the receiving vector + * @param {vec4} a the first operand + * @param {vec4} b the second operand + * @returns {vec4} out + */ +function multiply(out, a, b) { + out[0] = a[0] * b[0]; + out[1] = a[1] * b[1]; + out[2] = a[2] * b[2]; + out[3] = a[3] * b[3]; + return out; +} + +/** + * Divides two vec4's + * + * @param {vec4} out the receiving vector + * @param {vec4} a the first operand + * @param {vec4} b the second operand + * @returns {vec4} out + */ +function divide(out, a, b) { + out[0] = a[0] / b[0]; + out[1] = a[1] / b[1]; + out[2] = a[2] / b[2]; + out[3] = a[3] / b[3]; + return out; +} + +/** + * Math.ceil the components of a vec4 + * + * @param {vec4} out the receiving vector + * @param {vec4} a vector to ceil + * @returns {vec4} out + */ +function ceil(out, a) { + out[0] = Math.ceil(a[0]); + out[1] = Math.ceil(a[1]); + out[2] = Math.ceil(a[2]); + out[3] = Math.ceil(a[3]); + return out; +} + +/** + * Math.floor the components of a vec4 + * + * @param {vec4} out the receiving vector + * @param {vec4} a vector to floor + * @returns {vec4} out + */ +function floor(out, a) { + out[0] = Math.floor(a[0]); + out[1] = Math.floor(a[1]); + out[2] = Math.floor(a[2]); + out[3] = Math.floor(a[3]); + return out; +} + +/** + * Returns the minimum of two vec4's + * + * @param {vec4} out the receiving vector + * @param {vec4} a the first operand + * @param {vec4} b the second operand + * @returns {vec4} out + */ +function min(out, a, b) { + out[0] = Math.min(a[0], b[0]); + out[1] = Math.min(a[1], b[1]); + out[2] = Math.min(a[2], b[2]); + out[3] = Math.min(a[3], b[3]); + return out; +} + +/** + * Returns the maximum of two vec4's + * + * @param {vec4} out the receiving vector + * @param {vec4} a the first operand + * @param {vec4} b the second operand + * @returns {vec4} out + */ +function max(out, a, b) { + out[0] = Math.max(a[0], b[0]); + out[1] = Math.max(a[1], b[1]); + out[2] = Math.max(a[2], b[2]); + out[3] = Math.max(a[3], b[3]); + return out; +} + +/** + * Math.round the components of a vec4 + * + * @param {vec4} out the receiving vector + * @param {vec4} a vector to round + * @returns {vec4} out + */ +function round(out, a) { + out[0] = Math.round(a[0]); + out[1] = Math.round(a[1]); + out[2] = Math.round(a[2]); + out[3] = Math.round(a[3]); + return out; +} + +/** + * Scales a vec4 by a scalar number + * + * @param {vec4} out the receiving vector + * @param {vec4} a the vector to scale + * @param {Number} b amount to scale the vector by + * @returns {vec4} out + */ +function scale(out, a, b) { + out[0] = a[0] * b; + out[1] = a[1] * b; + out[2] = a[2] * b; + out[3] = a[3] * b; + return out; +} + +/** + * Adds two vec4's after scaling the second operand by a scalar value + * + * @param {vec4} out the receiving vector + * @param {vec4} a the first operand + * @param {vec4} b the second operand + * @param {Number} scale the amount to scale b by before adding + * @returns {vec4} out + */ +function scaleAndAdd(out, a, b, scale) { + out[0] = a[0] + (b[0] * scale); + out[1] = a[1] + (b[1] * scale); + out[2] = a[2] + (b[2] * scale); + out[3] = a[3] + (b[3] * scale); + return out; +} + +/** + * Calculates the euclidian distance between two vec4's + * + * @param {vec4} a the first operand + * @param {vec4} b the second operand + * @returns {Number} distance between a and b + */ +function distance(a, b) { + let x = b[0] - a[0]; + let y = b[1] - a[1]; + let z = b[2] - a[2]; + let w = b[3] - a[3]; + return Math.sqrt(x*x + y*y + z*z + w*w); +} + +/** + * Calculates the squared euclidian distance between two vec4's + * + * @param {vec4} a the first operand + * @param {vec4} b the second operand + * @returns {Number} squared distance between a and b + */ +function squaredDistance(a, b) { + let x = b[0] - a[0]; + let y = b[1] - a[1]; + let z = b[2] - a[2]; + let w = b[3] - a[3]; + return x*x + y*y + z*z + w*w; +} + +/** + * Calculates the length of a vec4 + * + * @param {vec4} a vector to calculate length of + * @returns {Number} length of a + */ +function length(a) { + let x = a[0]; + let y = a[1]; + let z = a[2]; + let w = a[3]; + return Math.sqrt(x*x + y*y + z*z + w*w); +} + +/** + * Calculates the squared length of a vec4 + * + * @param {vec4} a vector to calculate squared length of + * @returns {Number} squared length of a + */ +function squaredLength(a) { + let x = a[0]; + let y = a[1]; + let z = a[2]; + let w = a[3]; + return x*x + y*y + z*z + w*w; +} + +/** + * Negates the components of a vec4 + * + * @param {vec4} out the receiving vector + * @param {vec4} a vector to negate + * @returns {vec4} out + */ +function negate(out, a) { + out[0] = -a[0]; + out[1] = -a[1]; + out[2] = -a[2]; + out[3] = -a[3]; + return out; +} + +/** + * Returns the inverse of the components of a vec4 + * + * @param {vec4} out the receiving vector + * @param {vec4} a vector to invert + * @returns {vec4} out + */ +function inverse(out, a) { + out[0] = 1.0 / a[0]; + out[1] = 1.0 / a[1]; + out[2] = 1.0 / a[2]; + out[3] = 1.0 / a[3]; + return out; +} + +/** + * Normalize a vec4 + * + * @param {vec4} out the receiving vector + * @param {vec4} a vector to normalize + * @returns {vec4} out + */ +function normalize(out, a) { + let x = a[0]; + let y = a[1]; + let z = a[2]; + let w = a[3]; + let len = x*x + y*y + z*z + w*w; + if (len > 0) { + len = 1 / Math.sqrt(len); + out[0] = x * len; + out[1] = y * len; + out[2] = z * len; + out[3] = w * len; + } + return out; +} + +/** + * Calculates the dot product of two vec4's + * + * @param {vec4} a the first operand + * @param {vec4} b the second operand + * @returns {Number} dot product of a and b + */ +function dot(a, b) { + return a[0] * b[0] + a[1] * b[1] + a[2] * b[2] + a[3] * b[3]; +} + +/** + * Performs a linear interpolation between two vec4's + * + * @param {vec4} out the receiving vector + * @param {vec4} a the first operand + * @param {vec4} b the second operand + * @param {Number} t interpolation amount between the two inputs + * @returns {vec4} out + */ +function lerp(out, a, b, t) { + let ax = a[0]; + let ay = a[1]; + let az = a[2]; + let aw = a[3]; + out[0] = ax + t * (b[0] - ax); + out[1] = ay + t * (b[1] - ay); + out[2] = az + t * (b[2] - az); + out[3] = aw + t * (b[3] - aw); + return out; +} + +/** + * Generates a random vector with the given scale + * + * @param {vec4} out the receiving vector + * @param {Number} [scale] Length of the resulting vector. If ommitted, a unit vector will be returned + * @returns {vec4} out + */ +function random(out, vectorScale) { + vectorScale = vectorScale || 1.0; + + //TODO: This is a pretty awful way of doing this. Find something better. + out[0] = __WEBPACK_IMPORTED_MODULE_0__common__["c" /* RANDOM */](); + out[1] = __WEBPACK_IMPORTED_MODULE_0__common__["c" /* RANDOM */](); + out[2] = __WEBPACK_IMPORTED_MODULE_0__common__["c" /* RANDOM */](); + out[3] = __WEBPACK_IMPORTED_MODULE_0__common__["c" /* RANDOM */](); + normalize(out, out); + scale(out, out, vectorScale); + return out; +} + +/** + * Transforms the vec4 with a mat4. + * + * @param {vec4} out the receiving vector + * @param {vec4} a the vector to transform + * @param {mat4} m matrix to transform with + * @returns {vec4} out + */ +function transformMat4(out, a, m) { + let x = a[0], y = a[1], z = a[2], w = a[3]; + out[0] = m[0] * x + m[4] * y + m[8] * z + m[12] * w; + out[1] = m[1] * x + m[5] * y + m[9] * z + m[13] * w; + out[2] = m[2] * x + m[6] * y + m[10] * z + m[14] * w; + out[3] = m[3] * x + m[7] * y + m[11] * z + m[15] * w; + return out; +} + +/** + * Transforms the vec4 with a quat + * + * @param {vec4} out the receiving vector + * @param {vec4} a the vector to transform + * @param {quat} q quaternion to transform with + * @returns {vec4} out + */ +function transformQuat(out, a, q) { + let x = a[0], y = a[1], z = a[2]; + let qx = q[0], qy = q[1], qz = q[2], qw = q[3]; + + // calculate quat * vec + let ix = qw * x + qy * z - qz * y; + let iy = qw * y + qz * x - qx * z; + let iz = qw * z + qx * y - qy * x; + let iw = -qx * x - qy * y - qz * z; + + // calculate result * inverse quat + out[0] = ix * qw + iw * -qx + iy * -qz - iz * -qy; + out[1] = iy * qw + iw * -qy + iz * -qx - ix * -qz; + out[2] = iz * qw + iw * -qz + ix * -qy - iy * -qx; + out[3] = a[3]; + return out; +} + +/** + * Returns a string representation of a vector + * + * @param {vec4} a vector to represent as a string + * @returns {String} string representation of the vector + */ +function str(a) { + return 'vec4(' + a[0] + ', ' + a[1] + ', ' + a[2] + ', ' + a[3] + ')'; +} + +/** + * Returns whether or not the vectors have exactly the same elements in the same position (when compared with ===) + * + * @param {vec4} a The first vector. + * @param {vec4} b The second vector. + * @returns {Boolean} True if the vectors are equal, false otherwise. + */ +function exactEquals(a, b) { + return a[0] === b[0] && a[1] === b[1] && a[2] === b[2] && a[3] === b[3]; +} + +/** + * Returns whether or not the vectors have approximately the same elements in the same position. + * + * @param {vec4} a The first vector. + * @param {vec4} b The second vector. + * @returns {Boolean} True if the vectors are equal, false otherwise. + */ +function equals(a, b) { + let a0 = a[0], a1 = a[1], a2 = a[2], a3 = a[3]; + let b0 = b[0], b1 = b[1], b2 = b[2], b3 = b[3]; + return (Math.abs(a0 - b0) <= __WEBPACK_IMPORTED_MODULE_0__common__["b" /* EPSILON */]*Math.max(1.0, Math.abs(a0), Math.abs(b0)) && + Math.abs(a1 - b1) <= __WEBPACK_IMPORTED_MODULE_0__common__["b" /* EPSILON */]*Math.max(1.0, Math.abs(a1), Math.abs(b1)) && + Math.abs(a2 - b2) <= __WEBPACK_IMPORTED_MODULE_0__common__["b" /* EPSILON */]*Math.max(1.0, Math.abs(a2), Math.abs(b2)) && + Math.abs(a3 - b3) <= __WEBPACK_IMPORTED_MODULE_0__common__["b" /* EPSILON */]*Math.max(1.0, Math.abs(a3), Math.abs(b3))); +} + +/** + * Alias for {@link vec4.subtract} + * @function + */ +const sub = subtract; +/* harmony export (immutable) */ __webpack_exports__["sub"] = sub; + + +/** + * Alias for {@link vec4.multiply} + * @function + */ +const mul = multiply; +/* harmony export (immutable) */ __webpack_exports__["mul"] = mul; + + +/** + * Alias for {@link vec4.divide} + * @function + */ +const div = divide; +/* harmony export (immutable) */ __webpack_exports__["div"] = div; + + +/** + * Alias for {@link vec4.distance} + * @function + */ +const dist = distance; +/* harmony export (immutable) */ __webpack_exports__["dist"] = dist; + + +/** + * Alias for {@link vec4.squaredDistance} + * @function + */ +const sqrDist = squaredDistance; +/* harmony export (immutable) */ __webpack_exports__["sqrDist"] = sqrDist; + + +/** + * Alias for {@link vec4.length} + * @function + */ +const len = length; +/* harmony export (immutable) */ __webpack_exports__["len"] = len; + + +/** + * Alias for {@link vec4.squaredLength} + * @function + */ +const sqrLen = squaredLength; +/* harmony export (immutable) */ __webpack_exports__["sqrLen"] = sqrLen; + + +/** + * Perform some operation over an array of vec4s. + * + * @param {Array} a the array of vectors to iterate over + * @param {Number} stride Number of elements between the start of each vec4. If 0 assumes tightly packed + * @param {Number} offset Number of elements to skip at the beginning of the array + * @param {Number} count Number of vec4s to iterate over. If 0 iterates over entire array + * @param {Function} fn Function to call for each vector in the array + * @param {Object} [arg] additional argument to pass to fn + * @returns {Array} a + * @function + */ +const forEach = (function() { + let vec = create(); + + return function(a, stride, offset, count, fn, arg) { + let i, l; + if(!stride) { + stride = 4; + } + + if(!offset) { + offset = 0; + } + + if(count) { + l = Math.min((count * stride) + offset, a.length); + } else { + l = a.length; + } + + for(i = offset; i < l; i += stride) { + vec[0] = a[i]; vec[1] = a[i+1]; vec[2] = a[i+2]; vec[3] = a[i+3]; + fn(vec, vec, arg); + a[i] = vec[0]; a[i+1] = vec[1]; a[i+2] = vec[2]; a[i+3] = vec[3]; + } + + return a; + }; +})(); +/* harmony export (immutable) */ __webpack_exports__["forEach"] = forEach; + + + +/***/ }), +/* 8 */ +/***/ (function(module, __webpack_exports__, __webpack_require__) { + +"use strict"; +/* harmony import */ var __WEBPACK_IMPORTED_MODULE_0__globals__ = __webpack_require__(2); + +class Drawable { + constructor() { + this.count = 0; + this.idxBound = false; + this.posBound = false; + this.norBound = false; + } + destory() { + __WEBPACK_IMPORTED_MODULE_0__globals__["a" /* gl */].deleteBuffer(this.bufIdx); + __WEBPACK_IMPORTED_MODULE_0__globals__["a" /* gl */].deleteBuffer(this.bufPos); + __WEBPACK_IMPORTED_MODULE_0__globals__["a" /* gl */].deleteBuffer(this.bufNor); + } + generateIdx() { + this.idxBound = true; + this.bufIdx = __WEBPACK_IMPORTED_MODULE_0__globals__["a" /* gl */].createBuffer(); + } + generatePos() { + this.posBound = true; + this.bufPos = __WEBPACK_IMPORTED_MODULE_0__globals__["a" /* gl */].createBuffer(); + } + generateNor() { + this.norBound = true; + this.bufNor = __WEBPACK_IMPORTED_MODULE_0__globals__["a" /* gl */].createBuffer(); + } + bindIdx() { + if (this.idxBound) { + __WEBPACK_IMPORTED_MODULE_0__globals__["a" /* gl */].bindBuffer(__WEBPACK_IMPORTED_MODULE_0__globals__["a" /* gl */].ELEMENT_ARRAY_BUFFER, this.bufIdx); + } + return this.idxBound; + } + bindPos() { + if (this.posBound) { + __WEBPACK_IMPORTED_MODULE_0__globals__["a" /* gl */].bindBuffer(__WEBPACK_IMPORTED_MODULE_0__globals__["a" /* gl */].ARRAY_BUFFER, this.bufPos); + } + return this.posBound; + } + bindNor() { + if (this.norBound) { + __WEBPACK_IMPORTED_MODULE_0__globals__["a" /* gl */].bindBuffer(__WEBPACK_IMPORTED_MODULE_0__globals__["a" /* gl */].ARRAY_BUFFER, this.bufNor); + } + return this.norBound; + } + elemCount() { + return this.count; + } + drawMode() { + return __WEBPACK_IMPORTED_MODULE_0__globals__["a" /* gl */].TRIANGLES; + } +} +; +/* harmony default export */ __webpack_exports__["a"] = (Drawable); + + +/***/ }), +/* 9 */ +/***/ (function(module, exports, __webpack_require__) { + +"use strict"; + + +module.exports = createFilteredVector + +var cubicHermite = __webpack_require__(38) +var bsearch = __webpack_require__(10) + +function clamp(lo, hi, x) { + return Math.min(hi, Math.max(lo, x)) +} + +function FilteredVector(state0, velocity0, t0) { + this.dimension = state0.length + this.bounds = [ new Array(this.dimension), new Array(this.dimension) ] + for(var i=0; i= n-1) { + var ptr = state.length-1 + var tf = t - time[n-1] + for(var i=0; i= n-1) { + var ptr = state.length-1 + var tf = t - time[n-1] + for(var i=0; i=0; --i) { + if(velocity[--ptr]) { + return false + } + } + return true +} + +proto.jump = function(t) { + var t0 = this.lastT() + var d = this.dimension + if(t < t0 || arguments.length !== d+1) { + return + } + var state = this._state + var velocity = this._velocity + var ptr = state.length-this.dimension + var bounds = this.bounds + var lo = bounds[0] + var hi = bounds[1] + this._time.push(t0, t) + for(var j=0; j<2; ++j) { + for(var i=0; i0; --i) { + state.push(clamp(lo[i-1], hi[i-1], arguments[i])) + velocity.push(0) + } +} + +proto.push = function(t) { + var t0 = this.lastT() + var d = this.dimension + if(t < t0 || arguments.length !== d+1) { + return + } + var state = this._state + var velocity = this._velocity + var ptr = state.length-this.dimension + var dt = t - t0 + var bounds = this.bounds + var lo = bounds[0] + var hi = bounds[1] + var sf = (dt > 1e-6) ? 1/dt : 0 + this._time.push(t) + for(var i=d; i>0; --i) { + var xc = clamp(lo[i-1], hi[i-1], arguments[i]) + state.push(xc) + velocity.push((xc - state[ptr++]) * sf) + } +} + +proto.set = function(t) { + var d = this.dimension + if(t < this.lastT() || arguments.length !== d+1) { + return + } + var state = this._state + var velocity = this._velocity + var bounds = this.bounds + var lo = bounds[0] + var hi = bounds[1] + this._time.push(t) + for(var i=d; i>0; --i) { + state.push(clamp(lo[i-1], hi[i-1], arguments[i])) + velocity.push(0) + } +} + +proto.move = function(t) { + var t0 = this.lastT() + var d = this.dimension + if(t <= t0 || arguments.length !== d+1) { + return + } + var state = this._state + var velocity = this._velocity + var statePtr = state.length - this.dimension + var bounds = this.bounds + var lo = bounds[0] + var hi = bounds[1] + var dt = t - t0 + var sf = (dt > 1e-6) ? 1/dt : 0.0 + this._time.push(t) + for(var i=d; i>0; --i) { + var dx = arguments[i] + state.push(clamp(lo[i-1], hi[i-1], state[statePtr++] + dx)) + velocity.push(dx * sf) + } +} + +proto.idle = function(t) { + var t0 = this.lastT() + if(t < t0) { + return + } + var d = this.dimension + var state = this._state + var velocity = this._velocity + var statePtr = state.length-d + var bounds = this.bounds + var lo = bounds[0] + var hi = bounds[1] + var dt = t - t0 + this._time.push(t) + for(var i=d-1; i>=0; --i) { + state.push(clamp(lo[i], hi[i], state[statePtr] + dt * velocity[statePtr])) + velocity.push(0) + statePtr += 1 + } +} + +function getZero(d) { + var result = new Array(d) + for(var i=0; i>>1,x=a", useNdarray ? ".get(m)" : "[m]"] + if(earlyOut) { + if(predicate.indexOf("c") < 0) { + code.push(";if(x===y){return m}else if(x<=y){") + } else { + code.push(";var p=c(x,y);if(p===0){return m}else if(p<=0){") + } + } else { + code.push(";if(", predicate, "){i=m;") + } + if(reversed) { + code.push("l=m+1}else{h=m-1}") + } else { + code.push("h=m-1}else{l=m+1}") + } + code.push("}") + if(earlyOut) { + code.push("return -1};") + } else { + code.push("return i};") + } + return code.join("") +} + +function compileBoundsSearch(predicate, reversed, suffix, earlyOut) { + var result = new Function([ + compileSearch("A", "x" + predicate + "y", reversed, ["y"], false, earlyOut), + compileSearch("B", "x" + predicate + "y", reversed, ["y"], true, earlyOut), + compileSearch("P", "c(x,y)" + predicate + "0", reversed, ["y", "c"], false, earlyOut), + compileSearch("Q", "c(x,y)" + predicate + "0", reversed, ["y", "c"], true, earlyOut), +"function dispatchBsearch", suffix, "(a,y,c,l,h){\ +if(a.shape){\ +if(typeof(c)==='function'){\ +return Q(a,(l===undefined)?0:l|0,(h===undefined)?a.shape[0]-1:h|0,y,c)\ +}else{\ +return B(a,(c===undefined)?0:c|0,(l===undefined)?a.shape[0]-1:l|0,y)\ +}}else{\ +if(typeof(c)==='function'){\ +return P(a,(l===undefined)?0:l|0,(h===undefined)?a.length-1:h|0,y,c)\ +}else{\ +return A(a,(c===undefined)?0:c|0,(l===undefined)?a.length-1:l|0,y)\ +}}}\ +return dispatchBsearch", suffix].join("")) + return result() +} + +module.exports = { + ge: compileBoundsSearch(">=", false, "GE"), + gt: compileBoundsSearch(">", false, "GT"), + lt: compileBoundsSearch("<", true, "LT"), + le: compileBoundsSearch("<=", true, "LE"), + eq: compileBoundsSearch("-", true, "EQ", true) +} + + +/***/ }), +/* 11 */ +/***/ (function(module, exports) { + +module.exports = cross; + +/** + * Computes the cross product of two vec3's + * + * @param {vec3} out the receiving vector + * @param {vec3} a the first operand + * @param {vec3} b the second operand + * @returns {vec3} out + */ +function cross(out, a, b) { + var ax = a[0], ay = a[1], az = a[2], + bx = b[0], by = b[1], bz = b[2] + + out[0] = ay * bz - az * by + out[1] = az * bx - ax * bz + out[2] = ax * by - ay * bx + return out +} + +/***/ }), +/* 12 */ +/***/ (function(module, exports) { + +module.exports = dot; + +/** + * Calculates the dot product of two vec3's + * + * @param {vec3} a the first operand + * @param {vec3} b the second operand + * @returns {Number} dot product of a and b + */ +function dot(a, b) { + return a[0] * b[0] + a[1] * b[1] + a[2] * b[2] +} + +/***/ }), +/* 13 */ +/***/ (function(module, exports, __webpack_require__) { + +var identity = __webpack_require__(14); + +module.exports = lookAt; + +/** + * Generates a look-at matrix with the given eye position, focal point, and up axis + * + * @param {mat4} out mat4 frustum matrix will be written into + * @param {vec3} eye Position of the viewer + * @param {vec3} center Point the viewer is looking at + * @param {vec3} up vec3 pointing up + * @returns {mat4} out + */ +function lookAt(out, eye, center, up) { + var x0, x1, x2, y0, y1, y2, z0, z1, z2, len, + eyex = eye[0], + eyey = eye[1], + eyez = eye[2], + upx = up[0], + upy = up[1], + upz = up[2], + centerx = center[0], + centery = center[1], + centerz = center[2]; + + if (Math.abs(eyex - centerx) < 0.000001 && + Math.abs(eyey - centery) < 0.000001 && + Math.abs(eyez - centerz) < 0.000001) { + return identity(out); + } + + z0 = eyex - centerx; + z1 = eyey - centery; + z2 = eyez - centerz; + + len = 1 / Math.sqrt(z0 * z0 + z1 * z1 + z2 * z2); + z0 *= len; + z1 *= len; + z2 *= len; + + x0 = upy * z2 - upz * z1; + x1 = upz * z0 - upx * z2; + x2 = upx * z1 - upy * z0; + len = Math.sqrt(x0 * x0 + x1 * x1 + x2 * x2); + if (!len) { + x0 = 0; + x1 = 0; + x2 = 0; + } else { + len = 1 / len; + x0 *= len; + x1 *= len; + x2 *= len; + } + + y0 = z1 * x2 - z2 * x1; + y1 = z2 * x0 - z0 * x2; + y2 = z0 * x1 - z1 * x0; + + len = Math.sqrt(y0 * y0 + y1 * y1 + y2 * y2); + if (!len) { + y0 = 0; + y1 = 0; + y2 = 0; + } else { + len = 1 / len; + y0 *= len; + y1 *= len; + y2 *= len; + } + + out[0] = x0; + out[1] = y0; + out[2] = z0; + out[3] = 0; + out[4] = x1; + out[5] = y1; + out[6] = z1; + out[7] = 0; + out[8] = x2; + out[9] = y2; + out[10] = z2; + out[11] = 0; + out[12] = -(x0 * eyex + x1 * eyey + x2 * eyez); + out[13] = -(y0 * eyex + y1 * eyey + y2 * eyez); + out[14] = -(z0 * eyex + z1 * eyey + z2 * eyez); + out[15] = 1; + + return out; +}; + +/***/ }), +/* 14 */ +/***/ (function(module, exports) { + +module.exports = identity; + +/** + * Set a mat4 to the identity matrix + * + * @param {mat4} out the receiving matrix + * @returns {mat4} out + */ +function identity(out) { + out[0] = 1; + out[1] = 0; + out[2] = 0; + out[3] = 0; + out[4] = 0; + out[5] = 1; + out[6] = 0; + out[7] = 0; + out[8] = 0; + out[9] = 0; + out[10] = 1; + out[11] = 0; + out[12] = 0; + out[13] = 0; + out[14] = 0; + out[15] = 1; + return out; +}; + +/***/ }), +/* 15 */ +/***/ (function(module, exports) { + +module.exports = translate; + +/** + * Translate a mat4 by the given vector + * + * @param {mat4} out the receiving matrix + * @param {mat4} a the matrix to translate + * @param {vec3} v vector to translate by + * @returns {mat4} out + */ +function translate(out, a, v) { + var x = v[0], y = v[1], z = v[2], + a00, a01, a02, a03, + a10, a11, a12, a13, + a20, a21, a22, a23; + + if (a === out) { + out[12] = a[0] * x + a[4] * y + a[8] * z + a[12]; + out[13] = a[1] * x + a[5] * y + a[9] * z + a[13]; + out[14] = a[2] * x + a[6] * y + a[10] * z + a[14]; + out[15] = a[3] * x + a[7] * y + a[11] * z + a[15]; + } else { + a00 = a[0]; a01 = a[1]; a02 = a[2]; a03 = a[3]; + a10 = a[4]; a11 = a[5]; a12 = a[6]; a13 = a[7]; + a20 = a[8]; a21 = a[9]; a22 = a[10]; a23 = a[11]; + + out[0] = a00; out[1] = a01; out[2] = a02; out[3] = a03; + out[4] = a10; out[5] = a11; out[6] = a12; out[7] = a13; + out[8] = a20; out[9] = a21; out[10] = a22; out[11] = a23; + + out[12] = a00 * x + a10 * y + a20 * z + a[12]; + out[13] = a01 * x + a11 * y + a21 * z + a[13]; + out[14] = a02 * x + a12 * y + a22 * z + a[14]; + out[15] = a03 * x + a13 * y + a23 * z + a[15]; + } + + return out; +}; + +/***/ }), +/* 16 */ +/***/ (function(module, exports) { + +module.exports = create; + +/** + * Creates a new identity mat4 + * + * @returns {mat4} a new 4x4 matrix + */ +function create() { + var out = new Float32Array(16); + out[0] = 1; + out[1] = 0; + out[2] = 0; + out[3] = 0; + out[4] = 0; + out[5] = 1; + out[6] = 0; + out[7] = 0; + out[8] = 0; + out[9] = 0; + out[10] = 1; + out[11] = 0; + out[12] = 0; + out[13] = 0; + out[14] = 0; + out[15] = 1; + return out; +}; + +/***/ }), +/* 17 */ +/***/ (function(module, exports) { + +module.exports = scale; + +/** + * Scales the mat4 by the dimensions in the given vec3 + * + * @param {mat4} out the receiving matrix + * @param {mat4} a the matrix to scale + * @param {vec3} v the vec3 to scale the matrix by + * @returns {mat4} out + **/ +function scale(out, a, v) { + var x = v[0], y = v[1], z = v[2]; + + out[0] = a[0] * x; + out[1] = a[1] * x; + out[2] = a[2] * x; + out[3] = a[3] * x; + out[4] = a[4] * y; + out[5] = a[5] * y; + out[6] = a[6] * y; + out[7] = a[7] * y; + out[8] = a[8] * z; + out[9] = a[9] * z; + out[10] = a[10] * z; + out[11] = a[11] * z; + out[12] = a[12]; + out[13] = a[13]; + out[14] = a[14]; + out[15] = a[15]; + return out; +}; + +/***/ }), +/* 18 */ +/***/ (function(module, exports) { + +module.exports = determinant; + +/** + * Calculates the determinant of a mat4 + * + * @param {mat4} a the source matrix + * @returns {Number} determinant of a + */ +function determinant(a) { + var a00 = a[0], a01 = a[1], a02 = a[2], a03 = a[3], + a10 = a[4], a11 = a[5], a12 = a[6], a13 = a[7], + a20 = a[8], a21 = a[9], a22 = a[10], a23 = a[11], + a30 = a[12], a31 = a[13], a32 = a[14], a33 = a[15], + + b00 = a00 * a11 - a01 * a10, + b01 = a00 * a12 - a02 * a10, + b02 = a00 * a13 - a03 * a10, + b03 = a01 * a12 - a02 * a11, + b04 = a01 * a13 - a03 * a11, + b05 = a02 * a13 - a03 * a12, + b06 = a20 * a31 - a21 * a30, + b07 = a20 * a32 - a22 * a30, + b08 = a20 * a33 - a23 * a30, + b09 = a21 * a32 - a22 * a31, + b10 = a21 * a33 - a23 * a31, + b11 = a22 * a33 - a23 * a32; + + // Calculate the determinant + return b00 * b11 - b01 * b10 + b02 * b09 + b03 * b08 - b04 * b07 + b05 * b06; +}; + +/***/ }), +/* 19 */ +/***/ (function(module, __webpack_exports__, __webpack_require__) { + +"use strict"; +Object.defineProperty(__webpack_exports__, "__esModule", { value: true }); +/* harmony import */ var __WEBPACK_IMPORTED_MODULE_0_gl_matrix__ = __webpack_require__(1); +/* harmony import */ var __WEBPACK_IMPORTED_MODULE_1_stats_js__ = __webpack_require__(25); +/* harmony import */ var __WEBPACK_IMPORTED_MODULE_1_stats_js___default = __webpack_require__.n(__WEBPACK_IMPORTED_MODULE_1_stats_js__); +/* harmony import */ var __WEBPACK_IMPORTED_MODULE_2_dat_gui__ = __webpack_require__(26); +/* harmony import */ var __WEBPACK_IMPORTED_MODULE_2_dat_gui___default = __webpack_require__.n(__WEBPACK_IMPORTED_MODULE_2_dat_gui__); +/* harmony import */ var __WEBPACK_IMPORTED_MODULE_3__geometry_Icosphere__ = __webpack_require__(29); +/* harmony import */ var __WEBPACK_IMPORTED_MODULE_4__geometry_Square__ = __webpack_require__(30); +/* harmony import */ var __WEBPACK_IMPORTED_MODULE_5__rendering_gl_OpenGLRenderer__ = __webpack_require__(31); +/* harmony import */ var __WEBPACK_IMPORTED_MODULE_6__Camera__ = __webpack_require__(32); +/* harmony import */ var __WEBPACK_IMPORTED_MODULE_7__globals__ = __webpack_require__(2); +/* harmony import */ var __WEBPACK_IMPORTED_MODULE_8__rendering_gl_ShaderProgram__ = __webpack_require__(65); + + + + + + + + + +// Define an object with application parameters and button callbacks +// This will be referred to by dat.GUI's functions that add GUI elements. +const controls = { + tesselations: 5, + 'Load Scene': loadScene, +}; +let icosphere; +let square; +let prevTesselations = 5; +function loadScene() { + icosphere = new __WEBPACK_IMPORTED_MODULE_3__geometry_Icosphere__["a" /* default */](__WEBPACK_IMPORTED_MODULE_0_gl_matrix__["b" /* vec3 */].fromValues(0, 0, 0), 1, controls.tesselations); + icosphere.create(); + square = new __WEBPACK_IMPORTED_MODULE_4__geometry_Square__["a" /* default */](__WEBPACK_IMPORTED_MODULE_0_gl_matrix__["b" /* vec3 */].fromValues(0, 0, 0)); + square.create(); +} +function main() { + // Initial display for framerate + const stats = __WEBPACK_IMPORTED_MODULE_1_stats_js__(); + stats.setMode(0); + stats.domElement.style.position = 'absolute'; + stats.domElement.style.left = '0px'; + stats.domElement.style.top = '0px'; + document.body.appendChild(stats.domElement); + // Add controls to the gui + const gui = new __WEBPACK_IMPORTED_MODULE_2_dat_gui__["GUI"](); + gui.add(controls, 'tesselations', 0, 8).step(1); + gui.add(controls, 'Load Scene'); + // get canvas and webgl context + const canvas = document.getElementById('canvas'); + const gl = canvas.getContext('webgl2'); + if (!gl) { + alert('WebGL 2 not supported!'); + } + // `setGL` is a function imported above which sets the value of `gl` in the `globals.ts` module. + // Later, we can import `gl` from `globals.ts` to access it + Object(__WEBPACK_IMPORTED_MODULE_7__globals__["b" /* setGL */])(gl); + // Initial call to load scene + loadScene(); + const camera = new __WEBPACK_IMPORTED_MODULE_6__Camera__["a" /* default */](__WEBPACK_IMPORTED_MODULE_0_gl_matrix__["b" /* vec3 */].fromValues(0, 0, 5), __WEBPACK_IMPORTED_MODULE_0_gl_matrix__["b" /* vec3 */].fromValues(0, 0, 0)); + const renderer = new __WEBPACK_IMPORTED_MODULE_5__rendering_gl_OpenGLRenderer__["a" /* default */](canvas); + renderer.setClearColor(0.2, 0.2, 0.2, 1); + gl.enable(gl.DEPTH_TEST); + const lambert = new __WEBPACK_IMPORTED_MODULE_8__rendering_gl_ShaderProgram__["b" /* default */]([ + new __WEBPACK_IMPORTED_MODULE_8__rendering_gl_ShaderProgram__["a" /* Shader */](gl.VERTEX_SHADER, __webpack_require__(66)), + new __WEBPACK_IMPORTED_MODULE_8__rendering_gl_ShaderProgram__["a" /* Shader */](gl.FRAGMENT_SHADER, __webpack_require__(67)), + ]); + // This function will be called every frame + function tick() { + camera.update(); + stats.begin(); + gl.viewport(0, 0, window.innerWidth, window.innerHeight); + renderer.clear(); + if (controls.tesselations != prevTesselations) { + prevTesselations = controls.tesselations; + console.log(`controls.tesselations`); + icosphere = new __WEBPACK_IMPORTED_MODULE_3__geometry_Icosphere__["a" /* default */](__WEBPACK_IMPORTED_MODULE_0_gl_matrix__["b" /* vec3 */].fromValues(0, 0, 0), 1, prevTesselations); + icosphere.create(); + } + renderer.render(camera, lambert, [ + icosphere, + ]); + stats.end(); + // Tell the browser to call `tick` again whenever it renders a new frame + requestAnimationFrame(tick); + } + window.addEventListener('resize', function () { + renderer.setSize(window.innerWidth, window.innerHeight); + camera.setAspectRatio(window.innerWidth / window.innerHeight); + camera.updateProjectionMatrix(); + }, false); + renderer.setSize(window.innerWidth, window.innerHeight); + camera.setAspectRatio(window.innerWidth / window.innerHeight); + camera.updateProjectionMatrix(); + // Start the render loop + tick(); +} +main(); + + +/***/ }), +/* 20 */ +/***/ (function(module, __webpack_exports__, __webpack_require__) { + +"use strict"; +/* unused harmony export create */ +/* unused harmony export clone */ +/* unused harmony export copy */ +/* unused harmony export identity */ +/* unused harmony export fromValues */ +/* unused harmony export set */ +/* unused harmony export transpose */ +/* unused harmony export invert */ +/* unused harmony export adjoint */ +/* unused harmony export determinant */ +/* unused harmony export multiply */ +/* unused harmony export rotate */ +/* unused harmony export scale */ +/* unused harmony export fromRotation */ +/* unused harmony export fromScaling */ +/* unused harmony export str */ +/* unused harmony export frob */ +/* unused harmony export LDU */ +/* unused harmony export add */ +/* unused harmony export subtract */ +/* unused harmony export exactEquals */ +/* unused harmony export equals */ +/* unused harmony export multiplyScalar */ +/* unused harmony export multiplyScalarAndAdd */ +/* harmony import */ var __WEBPACK_IMPORTED_MODULE_0__common__ = __webpack_require__(0); +/* Copyright (c) 2015, Brandon Jones, Colin MacKenzie IV. + +Permission is hereby granted, free of charge, to any person obtaining a copy +of this software and associated documentation files (the "Software"), to deal +in the Software without restriction, including without limitation the rights +to use, copy, modify, merge, publish, distribute, sublicense, and/or sell +copies of the Software, and to permit persons to whom the Software is +furnished to do so, subject to the following conditions: + +The above copyright notice and this permission notice shall be included in +all copies or substantial portions of the Software. + +THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR +IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, +FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE +AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER +LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, +OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN +THE SOFTWARE. */ + + + +/** + * 2x2 Matrix + * @module mat2 + */ + +/** + * Creates a new identity mat2 + * + * @returns {mat2} a new 2x2 matrix + */ +function create() { + let out = new __WEBPACK_IMPORTED_MODULE_0__common__["a" /* ARRAY_TYPE */](4); + out[0] = 1; + out[1] = 0; + out[2] = 0; + out[3] = 1; + return out; +} + +/** + * Creates a new mat2 initialized with values from an existing matrix + * + * @param {mat2} a matrix to clone + * @returns {mat2} a new 2x2 matrix + */ +function clone(a) { + let out = new __WEBPACK_IMPORTED_MODULE_0__common__["a" /* ARRAY_TYPE */](4); + out[0] = a[0]; + out[1] = a[1]; + out[2] = a[2]; + out[3] = a[3]; + return out; +} + +/** + * Copy the values from one mat2 to another + * + * @param {mat2} out the receiving matrix + * @param {mat2} a the source matrix + * @returns {mat2} out + */ +function copy(out, a) { + out[0] = a[0]; + out[1] = a[1]; + out[2] = a[2]; + out[3] = a[3]; + return out; +} + +/** + * Set a mat2 to the identity matrix + * + * @param {mat2} out the receiving matrix + * @returns {mat2} out + */ +function identity(out) { + out[0] = 1; + out[1] = 0; + out[2] = 0; + out[3] = 1; + return out; +} + +/** + * Create a new mat2 with the given values + * + * @param {Number} m00 Component in column 0, row 0 position (index 0) + * @param {Number} m01 Component in column 0, row 1 position (index 1) + * @param {Number} m10 Component in column 1, row 0 position (index 2) + * @param {Number} m11 Component in column 1, row 1 position (index 3) + * @returns {mat2} out A new 2x2 matrix + */ +function fromValues(m00, m01, m10, m11) { + let out = new __WEBPACK_IMPORTED_MODULE_0__common__["a" /* ARRAY_TYPE */](4); + out[0] = m00; + out[1] = m01; + out[2] = m10; + out[3] = m11; + return out; +} + +/** + * Set the components of a mat2 to the given values + * + * @param {mat2} out the receiving matrix + * @param {Number} m00 Component in column 0, row 0 position (index 0) + * @param {Number} m01 Component in column 0, row 1 position (index 1) + * @param {Number} m10 Component in column 1, row 0 position (index 2) + * @param {Number} m11 Component in column 1, row 1 position (index 3) + * @returns {mat2} out + */ +function set(out, m00, m01, m10, m11) { + out[0] = m00; + out[1] = m01; + out[2] = m10; + out[3] = m11; + return out; +} + +/** + * Transpose the values of a mat2 + * + * @param {mat2} out the receiving matrix + * @param {mat2} a the source matrix + * @returns {mat2} out + */ +function transpose(out, a) { + // If we are transposing ourselves we can skip a few steps but have to cache + // some values + if (out === a) { + let a1 = a[1]; + out[1] = a[2]; + out[2] = a1; + } else { + out[0] = a[0]; + out[1] = a[2]; + out[2] = a[1]; + out[3] = a[3]; + } + + return out; +} + +/** + * Inverts a mat2 + * + * @param {mat2} out the receiving matrix + * @param {mat2} a the source matrix + * @returns {mat2} out + */ +function invert(out, a) { + let a0 = a[0], a1 = a[1], a2 = a[2], a3 = a[3]; + + // Calculate the determinant + let det = a0 * a3 - a2 * a1; + + if (!det) { + return null; + } + det = 1.0 / det; + + out[0] = a3 * det; + out[1] = -a1 * det; + out[2] = -a2 * det; + out[3] = a0 * det; + + return out; +} + +/** + * Calculates the adjugate of a mat2 + * + * @param {mat2} out the receiving matrix + * @param {mat2} a the source matrix + * @returns {mat2} out + */ +function adjoint(out, a) { + // Caching this value is nessecary if out == a + let a0 = a[0]; + out[0] = a[3]; + out[1] = -a[1]; + out[2] = -a[2]; + out[3] = a0; + + return out; +} + +/** + * Calculates the determinant of a mat2 + * + * @param {mat2} a the source matrix + * @returns {Number} determinant of a + */ +function determinant(a) { + return a[0] * a[3] - a[2] * a[1]; +} + +/** + * Multiplies two mat2's + * + * @param {mat2} out the receiving matrix + * @param {mat2} a the first operand + * @param {mat2} b the second operand + * @returns {mat2} out + */ +function multiply(out, a, b) { + let a0 = a[0], a1 = a[1], a2 = a[2], a3 = a[3]; + let b0 = b[0], b1 = b[1], b2 = b[2], b3 = b[3]; + out[0] = a0 * b0 + a2 * b1; + out[1] = a1 * b0 + a3 * b1; + out[2] = a0 * b2 + a2 * b3; + out[3] = a1 * b2 + a3 * b3; + return out; +} + +/** + * Rotates a mat2 by the given angle + * + * @param {mat2} out the receiving matrix + * @param {mat2} a the matrix to rotate + * @param {Number} rad the angle to rotate the matrix by + * @returns {mat2} out + */ +function rotate(out, a, rad) { + let a0 = a[0], a1 = a[1], a2 = a[2], a3 = a[3]; + let s = Math.sin(rad); + let c = Math.cos(rad); + out[0] = a0 * c + a2 * s; + out[1] = a1 * c + a3 * s; + out[2] = a0 * -s + a2 * c; + out[3] = a1 * -s + a3 * c; + return out; +} + +/** + * Scales the mat2 by the dimensions in the given vec2 + * + * @param {mat2} out the receiving matrix + * @param {mat2} a the matrix to rotate + * @param {vec2} v the vec2 to scale the matrix by + * @returns {mat2} out + **/ +function scale(out, a, v) { + let a0 = a[0], a1 = a[1], a2 = a[2], a3 = a[3]; + let v0 = v[0], v1 = v[1]; + out[0] = a0 * v0; + out[1] = a1 * v0; + out[2] = a2 * v1; + out[3] = a3 * v1; + return out; +} + +/** + * Creates a matrix from a given angle + * This is equivalent to (but much faster than): + * + * mat2.identity(dest); + * mat2.rotate(dest, dest, rad); + * + * @param {mat2} out mat2 receiving operation result + * @param {Number} rad the angle to rotate the matrix by + * @returns {mat2} out + */ +function fromRotation(out, rad) { + let s = Math.sin(rad); + let c = Math.cos(rad); + out[0] = c; + out[1] = s; + out[2] = -s; + out[3] = c; + return out; +} + +/** + * Creates a matrix from a vector scaling + * This is equivalent to (but much faster than): + * + * mat2.identity(dest); + * mat2.scale(dest, dest, vec); + * + * @param {mat2} out mat2 receiving operation result + * @param {vec2} v Scaling vector + * @returns {mat2} out + */ +function fromScaling(out, v) { + out[0] = v[0]; + out[1] = 0; + out[2] = 0; + out[3] = v[1]; + return out; +} + +/** + * Returns a string representation of a mat2 + * + * @param {mat2} a matrix to represent as a string + * @returns {String} string representation of the matrix + */ +function str(a) { + return 'mat2(' + a[0] + ', ' + a[1] + ', ' + a[2] + ', ' + a[3] + ')'; +} + +/** + * Returns Frobenius norm of a mat2 + * + * @param {mat2} a the matrix to calculate Frobenius norm of + * @returns {Number} Frobenius norm + */ +function frob(a) { + return(Math.sqrt(Math.pow(a[0], 2) + Math.pow(a[1], 2) + Math.pow(a[2], 2) + Math.pow(a[3], 2))) +} + +/** + * Returns L, D and U matrices (Lower triangular, Diagonal and Upper triangular) by factorizing the input matrix + * @param {mat2} L the lower triangular matrix + * @param {mat2} D the diagonal matrix + * @param {mat2} U the upper triangular matrix + * @param {mat2} a the input matrix to factorize + */ + +function LDU(L, D, U, a) { + L[2] = a[2]/a[0]; + U[0] = a[0]; + U[1] = a[1]; + U[3] = a[3] - L[2] * U[1]; + return [L, D, U]; +} + +/** + * Adds two mat2's + * + * @param {mat2} out the receiving matrix + * @param {mat2} a the first operand + * @param {mat2} b the second operand + * @returns {mat2} out + */ +function add(out, a, b) { + out[0] = a[0] + b[0]; + out[1] = a[1] + b[1]; + out[2] = a[2] + b[2]; + out[3] = a[3] + b[3]; + return out; +} + +/** + * Subtracts matrix b from matrix a + * + * @param {mat2} out the receiving matrix + * @param {mat2} a the first operand + * @param {mat2} b the second operand + * @returns {mat2} out + */ +function subtract(out, a, b) { + out[0] = a[0] - b[0]; + out[1] = a[1] - b[1]; + out[2] = a[2] - b[2]; + out[3] = a[3] - b[3]; + return out; +} + +/** + * Returns whether or not the matrices have exactly the same elements in the same position (when compared with ===) + * + * @param {mat2} a The first matrix. + * @param {mat2} b The second matrix. + * @returns {Boolean} True if the matrices are equal, false otherwise. + */ +function exactEquals(a, b) { + return a[0] === b[0] && a[1] === b[1] && a[2] === b[2] && a[3] === b[3]; +} + +/** + * Returns whether or not the matrices have approximately the same elements in the same position. + * + * @param {mat2} a The first matrix. + * @param {mat2} b The second matrix. + * @returns {Boolean} True if the matrices are equal, false otherwise. + */ +function equals(a, b) { + let a0 = a[0], a1 = a[1], a2 = a[2], a3 = a[3]; + let b0 = b[0], b1 = b[1], b2 = b[2], b3 = b[3]; + return (Math.abs(a0 - b0) <= __WEBPACK_IMPORTED_MODULE_0__common__["b" /* EPSILON */]*Math.max(1.0, Math.abs(a0), Math.abs(b0)) && + Math.abs(a1 - b1) <= __WEBPACK_IMPORTED_MODULE_0__common__["b" /* EPSILON */]*Math.max(1.0, Math.abs(a1), Math.abs(b1)) && + Math.abs(a2 - b2) <= __WEBPACK_IMPORTED_MODULE_0__common__["b" /* EPSILON */]*Math.max(1.0, Math.abs(a2), Math.abs(b2)) && + Math.abs(a3 - b3) <= __WEBPACK_IMPORTED_MODULE_0__common__["b" /* EPSILON */]*Math.max(1.0, Math.abs(a3), Math.abs(b3))); +} + +/** + * Multiply each element of the matrix by a scalar. + * + * @param {mat2} out the receiving matrix + * @param {mat2} a the matrix to scale + * @param {Number} b amount to scale the matrix's elements by + * @returns {mat2} out + */ +function multiplyScalar(out, a, b) { + out[0] = a[0] * b; + out[1] = a[1] * b; + out[2] = a[2] * b; + out[3] = a[3] * b; + return out; +} + +/** + * Adds two mat2's after multiplying each element of the second operand by a scalar value. + * + * @param {mat2} out the receiving vector + * @param {mat2} a the first operand + * @param {mat2} b the second operand + * @param {Number} scale the amount to scale b's elements by before adding + * @returns {mat2} out + */ +function multiplyScalarAndAdd(out, a, b, scale) { + out[0] = a[0] + (b[0] * scale); + out[1] = a[1] + (b[1] * scale); + out[2] = a[2] + (b[2] * scale); + out[3] = a[3] + (b[3] * scale); + return out; +} + +/** + * Alias for {@link mat2.multiply} + * @function + */ +const mul = multiply; +/* unused harmony export mul */ + + +/** + * Alias for {@link mat2.subtract} + * @function + */ +const sub = subtract; +/* unused harmony export sub */ + + + +/***/ }), +/* 21 */ +/***/ (function(module, __webpack_exports__, __webpack_require__) { + +"use strict"; +/* unused harmony export create */ +/* unused harmony export clone */ +/* unused harmony export copy */ +/* unused harmony export identity */ +/* unused harmony export fromValues */ +/* unused harmony export set */ +/* unused harmony export invert */ +/* unused harmony export determinant */ +/* unused harmony export multiply */ +/* unused harmony export rotate */ +/* unused harmony export scale */ +/* unused harmony export translate */ +/* unused harmony export fromRotation */ +/* unused harmony export fromScaling */ +/* unused harmony export fromTranslation */ +/* unused harmony export str */ +/* unused harmony export frob */ +/* unused harmony export add */ +/* unused harmony export subtract */ +/* unused harmony export multiplyScalar */ +/* unused harmony export multiplyScalarAndAdd */ +/* unused harmony export exactEquals */ +/* unused harmony export equals */ +/* harmony import */ var __WEBPACK_IMPORTED_MODULE_0__common__ = __webpack_require__(0); +/* Copyright (c) 2015, Brandon Jones, Colin MacKenzie IV. + +Permission is hereby granted, free of charge, to any person obtaining a copy +of this software and associated documentation files (the "Software"), to deal +in the Software without restriction, including without limitation the rights +to use, copy, modify, merge, publish, distribute, sublicense, and/or sell +copies of the Software, and to permit persons to whom the Software is +furnished to do so, subject to the following conditions: + +The above copyright notice and this permission notice shall be included in +all copies or substantial portions of the Software. + +THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR +IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, +FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE +AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER +LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, +OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN +THE SOFTWARE. */ + + + +/** + * 2x3 Matrix + * @module mat2d + * + * @description + * A mat2d contains six elements defined as: + * 
+ * [a, c, tx,
+ *  b, d, ty]
+ *
+ * This is a short form for the 3x3 matrix: + * 
+ * [a, c, tx,
+ *  b, d, ty,
+ *  0, 0, 1]
+ *
+ * The last row is ignored so the array is shorter and operations are faster. + */ + +/** + * Creates a new identity mat2d + * + * @returns {mat2d} a new 2x3 matrix + */ +function create() { + let out = new __WEBPACK_IMPORTED_MODULE_0__common__["a" /* ARRAY_TYPE */](6); + out[0] = 1; + out[1] = 0; + out[2] = 0; + out[3] = 1; + out[4] = 0; + out[5] = 0; + return out; +} + +/** + * Creates a new mat2d initialized with values from an existing matrix + * + * @param {mat2d} a matrix to clone + * @returns {mat2d} a new 2x3 matrix + */ +function clone(a) { + let out = new __WEBPACK_IMPORTED_MODULE_0__common__["a" /* ARRAY_TYPE */](6); + out[0] = a[0]; + out[1] = a[1]; + out[2] = a[2]; + out[3] = a[3]; + out[4] = a[4]; + out[5] = a[5]; + return out; +} + +/** + * Copy the values from one mat2d to another + * + * @param {mat2d} out the receiving matrix + * @param {mat2d} a the source matrix + * @returns {mat2d} out + */ +function copy(out, a) { + out[0] = a[0]; + out[1] = a[1]; + out[2] = a[2]; + out[3] = a[3]; + out[4] = a[4]; + out[5] = a[5]; + return out; +} + +/** + * Set a mat2d to the identity matrix + * + * @param {mat2d} out the receiving matrix + * @returns {mat2d} out + */ +function identity(out) { + out[0] = 1; + out[1] = 0; + out[2] = 0; + out[3] = 1; + out[4] = 0; + out[5] = 0; + return out; +} + +/** + * Create a new mat2d with the given values + * + * @param {Number} a Component A (index 0) + * @param {Number} b Component B (index 1) + * @param {Number} c Component C (index 2) + * @param {Number} d Component D (index 3) + * @param {Number} tx Component TX (index 4) + * @param {Number} ty Component TY (index 5) + * @returns {mat2d} A new mat2d + */ +function fromValues(a, b, c, d, tx, ty) { + let out = new __WEBPACK_IMPORTED_MODULE_0__common__["a" /* ARRAY_TYPE */](6); + out[0] = a; + out[1] = b; + out[2] = c; + out[3] = d; + out[4] = tx; + out[5] = ty; + return out; +} + +/** + * Set the components of a mat2d to the given values + * + * @param {mat2d} out the receiving matrix + * @param {Number} a Component A (index 0) + * @param {Number} b Component B (index 1) + * @param {Number} c Component C (index 2) + * @param {Number} d Component D (index 3) + * @param {Number} tx Component TX (index 4) + * @param {Number} ty Component TY (index 5) + * @returns {mat2d} out + */ +function set(out, a, b, c, d, tx, ty) { + out[0] = a; + out[1] = b; + out[2] = c; + out[3] = d; + out[4] = tx; + out[5] = ty; + return out; +} + +/** + * Inverts a mat2d + * + * @param {mat2d} out the receiving matrix + * @param {mat2d} a the source matrix + * @returns {mat2d} out + */ +function invert(out, a) { + let aa = a[0], ab = a[1], ac = a[2], ad = a[3]; + let atx = a[4], aty = a[5]; + + let det = aa * ad - ab * ac; + if(!det){ + return null; + } + det = 1.0 / det; + + out[0] = ad * det; + out[1] = -ab * det; + out[2] = -ac * det; + out[3] = aa * det; + out[4] = (ac * aty - ad * atx) * det; + out[5] = (ab * atx - aa * aty) * det; + return out; +} + +/** + * Calculates the determinant of a mat2d + * + * @param {mat2d} a the source matrix + * @returns {Number} determinant of a + */ +function determinant(a) { + return a[0] * a[3] - a[1] * a[2]; +} + +/** + * Multiplies two mat2d's + * + * @param {mat2d} out the receiving matrix + * @param {mat2d} a the first operand + * @param {mat2d} b the second operand + * @returns {mat2d} out + */ +function multiply(out, a, b) { + let a0 = a[0], a1 = a[1], a2 = a[2], a3 = a[3], a4 = a[4], a5 = a[5]; + let b0 = b[0], b1 = b[1], b2 = b[2], b3 = b[3], b4 = b[4], b5 = b[5]; + out[0] = a0 * b0 + a2 * b1; + out[1] = a1 * b0 + a3 * b1; + out[2] = a0 * b2 + a2 * b3; + out[3] = a1 * b2 + a3 * b3; + out[4] = a0 * b4 + a2 * b5 + a4; + out[5] = a1 * b4 + a3 * b5 + a5; + return out; +} + +/** + * Rotates a mat2d by the given angle + * + * @param {mat2d} out the receiving matrix + * @param {mat2d} a the matrix to rotate + * @param {Number} rad the angle to rotate the matrix by + * @returns {mat2d} out + */ +function rotate(out, a, rad) { + let a0 = a[0], a1 = a[1], a2 = a[2], a3 = a[3], a4 = a[4], a5 = a[5]; + let s = Math.sin(rad); + let c = Math.cos(rad); + out[0] = a0 * c + a2 * s; + out[1] = a1 * c + a3 * s; + out[2] = a0 * -s + a2 * c; + out[3] = a1 * -s + a3 * c; + out[4] = a4; + out[5] = a5; + return out; +} + +/** + * Scales the mat2d by the dimensions in the given vec2 + * + * @param {mat2d} out the receiving matrix + * @param {mat2d} a the matrix to translate + * @param {vec2} v the vec2 to scale the matrix by + * @returns {mat2d} out + **/ +function scale(out, a, v) { + let a0 = a[0], a1 = a[1], a2 = a[2], a3 = a[3], a4 = a[4], a5 = a[5]; + let v0 = v[0], v1 = v[1]; + out[0] = a0 * v0; + out[1] = a1 * v0; + out[2] = a2 * v1; + out[3] = a3 * v1; + out[4] = a4; + out[5] = a5; + return out; +} + +/** + * Translates the mat2d by the dimensions in the given vec2 + * + * @param {mat2d} out the receiving matrix + * @param {mat2d} a the matrix to translate + * @param {vec2} v the vec2 to translate the matrix by + * @returns {mat2d} out + **/ +function translate(out, a, v) { + let a0 = a[0], a1 = a[1], a2 = a[2], a3 = a[3], a4 = a[4], a5 = a[5]; + let v0 = v[0], v1 = v[1]; + out[0] = a0; + out[1] = a1; + out[2] = a2; + out[3] = a3; + out[4] = a0 * v0 + a2 * v1 + a4; + out[5] = a1 * v0 + a3 * v1 + a5; + return out; +} + +/** + * Creates a matrix from a given angle + * This is equivalent to (but much faster than): + * + * mat2d.identity(dest); + * mat2d.rotate(dest, dest, rad); + * + * @param {mat2d} out mat2d receiving operation result + * @param {Number} rad the angle to rotate the matrix by + * @returns {mat2d} out + */ +function fromRotation(out, rad) { + let s = Math.sin(rad), c = Math.cos(rad); + out[0] = c; + out[1] = s; + out[2] = -s; + out[3] = c; + out[4] = 0; + out[5] = 0; + return out; +} + +/** + * Creates a matrix from a vector scaling + * This is equivalent to (but much faster than): + * + * mat2d.identity(dest); + * mat2d.scale(dest, dest, vec); + * + * @param {mat2d} out mat2d receiving operation result + * @param {vec2} v Scaling vector + * @returns {mat2d} out + */ +function fromScaling(out, v) { + out[0] = v[0]; + out[1] = 0; + out[2] = 0; + out[3] = v[1]; + out[4] = 0; + out[5] = 0; + return out; +} + +/** + * Creates a matrix from a vector translation + * This is equivalent to (but much faster than): + * + * mat2d.identity(dest); + * mat2d.translate(dest, dest, vec); + * + * @param {mat2d} out mat2d receiving operation result + * @param {vec2} v Translation vector + * @returns {mat2d} out + */ +function fromTranslation(out, v) { + out[0] = 1; + out[1] = 0; + out[2] = 0; + out[3] = 1; + out[4] = v[0]; + out[5] = v[1]; + return out; +} + +/** + * Returns a string representation of a mat2d + * + * @param {mat2d} a matrix to represent as a string + * @returns {String} string representation of the matrix + */ +function str(a) { + return 'mat2d(' + a[0] + ', ' + a[1] + ', ' + a[2] + ', ' + + a[3] + ', ' + a[4] + ', ' + a[5] + ')'; +} + +/** + * Returns Frobenius norm of a mat2d + * + * @param {mat2d} a the matrix to calculate Frobenius norm of + * @returns {Number} Frobenius norm + */ +function frob(a) { + return(Math.sqrt(Math.pow(a[0], 2) + Math.pow(a[1], 2) + Math.pow(a[2], 2) + Math.pow(a[3], 2) + Math.pow(a[4], 2) + Math.pow(a[5], 2) + 1)) +} + +/** + * Adds two mat2d's + * + * @param {mat2d} out the receiving matrix + * @param {mat2d} a the first operand + * @param {mat2d} b the second operand + * @returns {mat2d} out + */ +function add(out, a, b) { + out[0] = a[0] + b[0]; + out[1] = a[1] + b[1]; + out[2] = a[2] + b[2]; + out[3] = a[3] + b[3]; + out[4] = a[4] + b[4]; + out[5] = a[5] + b[5]; + return out; +} + +/** + * Subtracts matrix b from matrix a + * + * @param {mat2d} out the receiving matrix + * @param {mat2d} a the first operand + * @param {mat2d} b the second operand + * @returns {mat2d} out + */ +function subtract(out, a, b) { + out[0] = a[0] - b[0]; + out[1] = a[1] - b[1]; + out[2] = a[2] - b[2]; + out[3] = a[3] - b[3]; + out[4] = a[4] - b[4]; + out[5] = a[5] - b[5]; + return out; +} + +/** + * Multiply each element of the matrix by a scalar. + * + * @param {mat2d} out the receiving matrix + * @param {mat2d} a the matrix to scale + * @param {Number} b amount to scale the matrix's elements by + * @returns {mat2d} out + */ +function multiplyScalar(out, a, b) { + out[0] = a[0] * b; + out[1] = a[1] * b; + out[2] = a[2] * b; + out[3] = a[3] * b; + out[4] = a[4] * b; + out[5] = a[5] * b; + return out; +} + +/** + * Adds two mat2d's after multiplying each element of the second operand by a scalar value. + * + * @param {mat2d} out the receiving vector + * @param {mat2d} a the first operand + * @param {mat2d} b the second operand + * @param {Number} scale the amount to scale b's elements by before adding + * @returns {mat2d} out + */ +function multiplyScalarAndAdd(out, a, b, scale) { + out[0] = a[0] + (b[0] * scale); + out[1] = a[1] + (b[1] * scale); + out[2] = a[2] + (b[2] * scale); + out[3] = a[3] + (b[3] * scale); + out[4] = a[4] + (b[4] * scale); + out[5] = a[5] + (b[5] * scale); + return out; +} + +/** + * Returns whether or not the matrices have exactly the same elements in the same position (when compared with ===) + * + * @param {mat2d} a The first matrix. + * @param {mat2d} b The second matrix. + * @returns {Boolean} True if the matrices are equal, false otherwise. + */ +function exactEquals(a, b) { + return a[0] === b[0] && a[1] === b[1] && a[2] === b[2] && a[3] === b[3] && a[4] === b[4] && a[5] === b[5]; +} + +/** + * Returns whether or not the matrices have approximately the same elements in the same position. + * + * @param {mat2d} a The first matrix. + * @param {mat2d} b The second matrix. + * @returns {Boolean} True if the matrices are equal, false otherwise. + */ +function equals(a, b) { + let a0 = a[0], a1 = a[1], a2 = a[2], a3 = a[3], a4 = a[4], a5 = a[5]; + let b0 = b[0], b1 = b[1], b2 = b[2], b3 = b[3], b4 = b[4], b5 = b[5]; + return (Math.abs(a0 - b0) <= __WEBPACK_IMPORTED_MODULE_0__common__["b" /* EPSILON */]*Math.max(1.0, Math.abs(a0), Math.abs(b0)) && + Math.abs(a1 - b1) <= __WEBPACK_IMPORTED_MODULE_0__common__["b" /* EPSILON */]*Math.max(1.0, Math.abs(a1), Math.abs(b1)) && + Math.abs(a2 - b2) <= __WEBPACK_IMPORTED_MODULE_0__common__["b" /* EPSILON */]*Math.max(1.0, Math.abs(a2), Math.abs(b2)) && + Math.abs(a3 - b3) <= __WEBPACK_IMPORTED_MODULE_0__common__["b" /* EPSILON */]*Math.max(1.0, Math.abs(a3), Math.abs(b3)) && + Math.abs(a4 - b4) <= __WEBPACK_IMPORTED_MODULE_0__common__["b" /* EPSILON */]*Math.max(1.0, Math.abs(a4), Math.abs(b4)) && + Math.abs(a5 - b5) <= __WEBPACK_IMPORTED_MODULE_0__common__["b" /* EPSILON */]*Math.max(1.0, Math.abs(a5), Math.abs(b5))); +} + +/** + * Alias for {@link mat2d.multiply} + * @function + */ +const mul = multiply; +/* unused harmony export mul */ + + +/** + * Alias for {@link mat2d.subtract} + * @function + */ +const sub = subtract; +/* unused harmony export sub */ + + + +/***/ }), +/* 22 */ +/***/ (function(module, __webpack_exports__, __webpack_require__) { + +"use strict"; +Object.defineProperty(__webpack_exports__, "__esModule", { value: true }); +/* harmony export (immutable) */ __webpack_exports__["create"] = create; +/* harmony export (immutable) */ __webpack_exports__["clone"] = clone; +/* harmony export (immutable) */ __webpack_exports__["copy"] = copy; +/* harmony export (immutable) */ __webpack_exports__["fromValues"] = fromValues; +/* harmony export (immutable) */ __webpack_exports__["set"] = set; +/* harmony export (immutable) */ __webpack_exports__["identity"] = identity; +/* harmony export (immutable) */ __webpack_exports__["transpose"] = transpose; +/* harmony export (immutable) */ __webpack_exports__["invert"] = invert; +/* harmony export (immutable) */ __webpack_exports__["adjoint"] = adjoint; +/* harmony export (immutable) */ __webpack_exports__["determinant"] = determinant; +/* harmony export (immutable) */ __webpack_exports__["multiply"] = multiply; +/* harmony export (immutable) */ __webpack_exports__["translate"] = translate; +/* harmony export (immutable) */ __webpack_exports__["scale"] = scale; +/* harmony export (immutable) */ __webpack_exports__["rotate"] = rotate; +/* harmony export (immutable) */ __webpack_exports__["rotateX"] = rotateX; +/* harmony export (immutable) */ __webpack_exports__["rotateY"] = rotateY; +/* harmony export (immutable) */ __webpack_exports__["rotateZ"] = rotateZ; +/* harmony export (immutable) */ __webpack_exports__["fromTranslation"] = fromTranslation; +/* harmony export (immutable) */ __webpack_exports__["fromScaling"] = fromScaling; +/* harmony export (immutable) */ __webpack_exports__["fromRotation"] = fromRotation; +/* harmony export (immutable) */ __webpack_exports__["fromXRotation"] = fromXRotation; +/* harmony export (immutable) */ __webpack_exports__["fromYRotation"] = fromYRotation; +/* harmony export (immutable) */ __webpack_exports__["fromZRotation"] = fromZRotation; +/* harmony export (immutable) */ __webpack_exports__["fromRotationTranslation"] = fromRotationTranslation; +/* harmony export (immutable) */ __webpack_exports__["getTranslation"] = getTranslation; +/* harmony export (immutable) */ __webpack_exports__["getScaling"] = getScaling; +/* harmony export (immutable) */ __webpack_exports__["getRotation"] = getRotation; +/* harmony export (immutable) */ __webpack_exports__["fromRotationTranslationScale"] = fromRotationTranslationScale; +/* harmony export (immutable) */ __webpack_exports__["fromRotationTranslationScaleOrigin"] = fromRotationTranslationScaleOrigin; +/* harmony export (immutable) */ __webpack_exports__["fromQuat"] = fromQuat; +/* harmony export (immutable) */ __webpack_exports__["frustum"] = frustum; +/* harmony export (immutable) */ __webpack_exports__["perspective"] = perspective; +/* harmony export (immutable) */ __webpack_exports__["perspectiveFromFieldOfView"] = perspectiveFromFieldOfView; +/* harmony export (immutable) */ __webpack_exports__["ortho"] = ortho; +/* harmony export (immutable) */ __webpack_exports__["lookAt"] = lookAt; +/* harmony export (immutable) */ __webpack_exports__["targetTo"] = targetTo; +/* harmony export (immutable) */ __webpack_exports__["str"] = str; +/* harmony export (immutable) */ __webpack_exports__["frob"] = frob; +/* harmony export (immutable) */ __webpack_exports__["add"] = add; +/* harmony export (immutable) */ __webpack_exports__["subtract"] = subtract; +/* harmony export (immutable) */ __webpack_exports__["multiplyScalar"] = multiplyScalar; +/* harmony export (immutable) */ __webpack_exports__["multiplyScalarAndAdd"] = multiplyScalarAndAdd; +/* harmony export (immutable) */ __webpack_exports__["exactEquals"] = exactEquals; +/* harmony export (immutable) */ __webpack_exports__["equals"] = equals; +/* harmony import */ var __WEBPACK_IMPORTED_MODULE_0__common__ = __webpack_require__(0); +/* Copyright (c) 2015, Brandon Jones, Colin MacKenzie IV. + +Permission is hereby granted, free of charge, to any person obtaining a copy +of this software and associated documentation files (the "Software"), to deal +in the Software without restriction, including without limitation the rights +to use, copy, modify, merge, publish, distribute, sublicense, and/or sell +copies of the Software, and to permit persons to whom the Software is +furnished to do so, subject to the following conditions: + +The above copyright notice and this permission notice shall be included in +all copies or substantial portions of the Software. + +THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR +IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, +FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE +AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER +LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, +OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN +THE SOFTWARE. */ + + + +/** + * 4x4 Matrix + * @module mat4 + */ + +/** + * Creates a new identity mat4 + * + * @returns {mat4} a new 4x4 matrix + */ +function create() { + let out = new __WEBPACK_IMPORTED_MODULE_0__common__["a" /* ARRAY_TYPE */](16); + out[0] = 1; + out[1] = 0; + out[2] = 0; + out[3] = 0; + out[4] = 0; + out[5] = 1; + out[6] = 0; + out[7] = 0; + out[8] = 0; + out[9] = 0; + out[10] = 1; + out[11] = 0; + out[12] = 0; + out[13] = 0; + out[14] = 0; + out[15] = 1; + return out; +} + +/** + * Creates a new mat4 initialized with values from an existing matrix + * + * @param {mat4} a matrix to clone + * @returns {mat4} a new 4x4 matrix + */ +function clone(a) { + let out = new __WEBPACK_IMPORTED_MODULE_0__common__["a" /* ARRAY_TYPE */](16); + out[0] = a[0]; + out[1] = a[1]; + out[2] = a[2]; + out[3] = a[3]; + out[4] = a[4]; + out[5] = a[5]; + out[6] = a[6]; + out[7] = a[7]; + out[8] = a[8]; + out[9] = a[9]; + out[10] = a[10]; + out[11] = a[11]; + out[12] = a[12]; + out[13] = a[13]; + out[14] = a[14]; + out[15] = a[15]; + return out; +} + +/** + * Copy the values from one mat4 to another + * + * @param {mat4} out the receiving matrix + * @param {mat4} a the source matrix + * @returns {mat4} out + */ +function copy(out, a) { + out[0] = a[0]; + out[1] = a[1]; + out[2] = a[2]; + out[3] = a[3]; + out[4] = a[4]; + out[5] = a[5]; + out[6] = a[6]; + out[7] = a[7]; + out[8] = a[8]; + out[9] = a[9]; + out[10] = a[10]; + out[11] = a[11]; + out[12] = a[12]; + out[13] = a[13]; + out[14] = a[14]; + out[15] = a[15]; + return out; +} + +/** + * Create a new mat4 with the given values + * + * @param {Number} m00 Component in column 0, row 0 position (index 0) + * @param {Number} m01 Component in column 0, row 1 position (index 1) + * @param {Number} m02 Component in column 0, row 2 position (index 2) + * @param {Number} m03 Component in column 0, row 3 position (index 3) + * @param {Number} m10 Component in column 1, row 0 position (index 4) + * @param {Number} m11 Component in column 1, row 1 position (index 5) + * @param {Number} m12 Component in column 1, row 2 position (index 6) + * @param {Number} m13 Component in column 1, row 3 position (index 7) + * @param {Number} m20 Component in column 2, row 0 position (index 8) + * @param {Number} m21 Component in column 2, row 1 position (index 9) + * @param {Number} m22 Component in column 2, row 2 position (index 10) + * @param {Number} m23 Component in column 2, row 3 position (index 11) + * @param {Number} m30 Component in column 3, row 0 position (index 12) + * @param {Number} m31 Component in column 3, row 1 position (index 13) + * @param {Number} m32 Component in column 3, row 2 position (index 14) + * @param {Number} m33 Component in column 3, row 3 position (index 15) + * @returns {mat4} A new mat4 + */ +function fromValues(m00, m01, m02, m03, m10, m11, m12, m13, m20, m21, m22, m23, m30, m31, m32, m33) { + let out = new __WEBPACK_IMPORTED_MODULE_0__common__["a" /* ARRAY_TYPE */](16); + out[0] = m00; + out[1] = m01; + out[2] = m02; + out[3] = m03; + out[4] = m10; + out[5] = m11; + out[6] = m12; + out[7] = m13; + out[8] = m20; + out[9] = m21; + out[10] = m22; + out[11] = m23; + out[12] = m30; + out[13] = m31; + out[14] = m32; + out[15] = m33; + return out; +} + +/** + * Set the components of a mat4 to the given values + * + * @param {mat4} out the receiving matrix + * @param {Number} m00 Component in column 0, row 0 position (index 0) + * @param {Number} m01 Component in column 0, row 1 position (index 1) + * @param {Number} m02 Component in column 0, row 2 position (index 2) + * @param {Number} m03 Component in column 0, row 3 position (index 3) + * @param {Number} m10 Component in column 1, row 0 position (index 4) + * @param {Number} m11 Component in column 1, row 1 position (index 5) + * @param {Number} m12 Component in column 1, row 2 position (index 6) + * @param {Number} m13 Component in column 1, row 3 position (index 7) + * @param {Number} m20 Component in column 2, row 0 position (index 8) + * @param {Number} m21 Component in column 2, row 1 position (index 9) + * @param {Number} m22 Component in column 2, row 2 position (index 10) + * @param {Number} m23 Component in column 2, row 3 position (index 11) + * @param {Number} m30 Component in column 3, row 0 position (index 12) + * @param {Number} m31 Component in column 3, row 1 position (index 13) + * @param {Number} m32 Component in column 3, row 2 position (index 14) + * @param {Number} m33 Component in column 3, row 3 position (index 15) + * @returns {mat4} out + */ +function set(out, m00, m01, m02, m03, m10, m11, m12, m13, m20, m21, m22, m23, m30, m31, m32, m33) { + out[0] = m00; + out[1] = m01; + out[2] = m02; + out[3] = m03; + out[4] = m10; + out[5] = m11; + out[6] = m12; + out[7] = m13; + out[8] = m20; + out[9] = m21; + out[10] = m22; + out[11] = m23; + out[12] = m30; + out[13] = m31; + out[14] = m32; + out[15] = m33; + return out; +} + + +/** + * Set a mat4 to the identity matrix + * + * @param {mat4} out the receiving matrix + * @returns {mat4} out + */ +function identity(out) { + out[0] = 1; + out[1] = 0; + out[2] = 0; + out[3] = 0; + out[4] = 0; + out[5] = 1; + out[6] = 0; + out[7] = 0; + out[8] = 0; + out[9] = 0; + out[10] = 1; + out[11] = 0; + out[12] = 0; + out[13] = 0; + out[14] = 0; + out[15] = 1; + return out; +} + +/** + * Transpose the values of a mat4 + * + * @param {mat4} out the receiving matrix + * @param {mat4} a the source matrix + * @returns {mat4} out + */ +function transpose(out, a) { + // If we are transposing ourselves we can skip a few steps but have to cache some values + if (out === a) { + let a01 = a[1], a02 = a[2], a03 = a[3]; + let a12 = a[6], a13 = a[7]; + let a23 = a[11]; + + out[1] = a[4]; + out[2] = a[8]; + out[3] = a[12]; + out[4] = a01; + out[6] = a[9]; + out[7] = a[13]; + out[8] = a02; + out[9] = a12; + out[11] = a[14]; + out[12] = a03; + out[13] = a13; + out[14] = a23; + } else { + out[0] = a[0]; + out[1] = a[4]; + out[2] = a[8]; + out[3] = a[12]; + out[4] = a[1]; + out[5] = a[5]; + out[6] = a[9]; + out[7] = a[13]; + out[8] = a[2]; + out[9] = a[6]; + out[10] = a[10]; + out[11] = a[14]; + out[12] = a[3]; + out[13] = a[7]; + out[14] = a[11]; + out[15] = a[15]; + } + + return out; +} + +/** + * Inverts a mat4 + * + * @param {mat4} out the receiving matrix + * @param {mat4} a the source matrix + * @returns {mat4} out + */ +function invert(out, a) { + let a00 = a[0], a01 = a[1], a02 = a[2], a03 = a[3]; + let a10 = a[4], a11 = a[5], a12 = a[6], a13 = a[7]; + let a20 = a[8], a21 = a[9], a22 = a[10], a23 = a[11]; + let a30 = a[12], a31 = a[13], a32 = a[14], a33 = a[15]; + + let b00 = a00 * a11 - a01 * a10; + let b01 = a00 * a12 - a02 * a10; + let b02 = a00 * a13 - a03 * a10; + let b03 = a01 * a12 - a02 * a11; + let b04 = a01 * a13 - a03 * a11; + let b05 = a02 * a13 - a03 * a12; + let b06 = a20 * a31 - a21 * a30; + let b07 = a20 * a32 - a22 * a30; + let b08 = a20 * a33 - a23 * a30; + let b09 = a21 * a32 - a22 * a31; + let b10 = a21 * a33 - a23 * a31; + let b11 = a22 * a33 - a23 * a32; + + // Calculate the determinant + let det = b00 * b11 - b01 * b10 + b02 * b09 + b03 * b08 - b04 * b07 + b05 * b06; + + if (!det) { + return null; + } + det = 1.0 / det; + + out[0] = (a11 * b11 - a12 * b10 + a13 * b09) * det; + out[1] = (a02 * b10 - a01 * b11 - a03 * b09) * det; + out[2] = (a31 * b05 - a32 * b04 + a33 * b03) * det; + out[3] = (a22 * b04 - a21 * b05 - a23 * b03) * det; + out[4] = (a12 * b08 - a10 * b11 - a13 * b07) * det; + out[5] = (a00 * b11 - a02 * b08 + a03 * b07) * det; + out[6] = (a32 * b02 - a30 * b05 - a33 * b01) * det; + out[7] = (a20 * b05 - a22 * b02 + a23 * b01) * det; + out[8] = (a10 * b10 - a11 * b08 + a13 * b06) * det; + out[9] = (a01 * b08 - a00 * b10 - a03 * b06) * det; + out[10] = (a30 * b04 - a31 * b02 + a33 * b00) * det; + out[11] = (a21 * b02 - a20 * b04 - a23 * b00) * det; + out[12] = (a11 * b07 - a10 * b09 - a12 * b06) * det; + out[13] = (a00 * b09 - a01 * b07 + a02 * b06) * det; + out[14] = (a31 * b01 - a30 * b03 - a32 * b00) * det; + out[15] = (a20 * b03 - a21 * b01 + a22 * b00) * det; + + return out; +} + +/** + * Calculates the adjugate of a mat4 + * + * @param {mat4} out the receiving matrix + * @param {mat4} a the source matrix + * @returns {mat4} out + */ +function adjoint(out, a) { + let a00 = a[0], a01 = a[1], a02 = a[2], a03 = a[3]; + let a10 = a[4], a11 = a[5], a12 = a[6], a13 = a[7]; + let a20 = a[8], a21 = a[9], a22 = a[10], a23 = a[11]; + let a30 = a[12], a31 = a[13], a32 = a[14], a33 = a[15]; + + out[0] = (a11 * (a22 * a33 - a23 * a32) - a21 * (a12 * a33 - a13 * a32) + a31 * (a12 * a23 - a13 * a22)); + out[1] = -(a01 * (a22 * a33 - a23 * a32) - a21 * (a02 * a33 - a03 * a32) + a31 * (a02 * a23 - a03 * a22)); + out[2] = (a01 * (a12 * a33 - a13 * a32) - a11 * (a02 * a33 - a03 * a32) + a31 * (a02 * a13 - a03 * a12)); + out[3] = -(a01 * (a12 * a23 - a13 * a22) - a11 * (a02 * a23 - a03 * a22) + a21 * (a02 * a13 - a03 * a12)); + out[4] = -(a10 * (a22 * a33 - a23 * a32) - a20 * (a12 * a33 - a13 * a32) + a30 * (a12 * a23 - a13 * a22)); + out[5] = (a00 * (a22 * a33 - a23 * a32) - a20 * (a02 * a33 - a03 * a32) + a30 * (a02 * a23 - a03 * a22)); + out[6] = -(a00 * (a12 * a33 - a13 * a32) - a10 * (a02 * a33 - a03 * a32) + a30 * (a02 * a13 - a03 * a12)); + out[7] = (a00 * (a12 * a23 - a13 * a22) - a10 * (a02 * a23 - a03 * a22) + a20 * (a02 * a13 - a03 * a12)); + out[8] = (a10 * (a21 * a33 - a23 * a31) - a20 * (a11 * a33 - a13 * a31) + a30 * (a11 * a23 - a13 * a21)); + out[9] = -(a00 * (a21 * a33 - a23 * a31) - a20 * (a01 * a33 - a03 * a31) + a30 * (a01 * a23 - a03 * a21)); + out[10] = (a00 * (a11 * a33 - a13 * a31) - a10 * (a01 * a33 - a03 * a31) + a30 * (a01 * a13 - a03 * a11)); + out[11] = -(a00 * (a11 * a23 - a13 * a21) - a10 * (a01 * a23 - a03 * a21) + a20 * (a01 * a13 - a03 * a11)); + out[12] = -(a10 * (a21 * a32 - a22 * a31) - a20 * (a11 * a32 - a12 * a31) + a30 * (a11 * a22 - a12 * a21)); + out[13] = (a00 * (a21 * a32 - a22 * a31) - a20 * (a01 * a32 - a02 * a31) + a30 * (a01 * a22 - a02 * a21)); + out[14] = -(a00 * (a11 * a32 - a12 * a31) - a10 * (a01 * a32 - a02 * a31) + a30 * (a01 * a12 - a02 * a11)); + out[15] = (a00 * (a11 * a22 - a12 * a21) - a10 * (a01 * a22 - a02 * a21) + a20 * (a01 * a12 - a02 * a11)); + return out; +} + +/** + * Calculates the determinant of a mat4 + * + * @param {mat4} a the source matrix + * @returns {Number} determinant of a + */ +function determinant(a) { + let a00 = a[0], a01 = a[1], a02 = a[2], a03 = a[3]; + let a10 = a[4], a11 = a[5], a12 = a[6], a13 = a[7]; + let a20 = a[8], a21 = a[9], a22 = a[10], a23 = a[11]; + let a30 = a[12], a31 = a[13], a32 = a[14], a33 = a[15]; + + let b00 = a00 * a11 - a01 * a10; + let b01 = a00 * a12 - a02 * a10; + let b02 = a00 * a13 - a03 * a10; + let b03 = a01 * a12 - a02 * a11; + let b04 = a01 * a13 - a03 * a11; + let b05 = a02 * a13 - a03 * a12; + let b06 = a20 * a31 - a21 * a30; + let b07 = a20 * a32 - a22 * a30; + let b08 = a20 * a33 - a23 * a30; + let b09 = a21 * a32 - a22 * a31; + let b10 = a21 * a33 - a23 * a31; + let b11 = a22 * a33 - a23 * a32; + + // Calculate the determinant + return b00 * b11 - b01 * b10 + b02 * b09 + b03 * b08 - b04 * b07 + b05 * b06; +} + +/** + * Multiplies two mat4s + * + * @param {mat4} out the receiving matrix + * @param {mat4} a the first operand + * @param {mat4} b the second operand + * @returns {mat4} out + */ +function multiply(out, a, b) { + let a00 = a[0], a01 = a[1], a02 = a[2], a03 = a[3]; + let a10 = a[4], a11 = a[5], a12 = a[6], a13 = a[7]; + let a20 = a[8], a21 = a[9], a22 = a[10], a23 = a[11]; + let a30 = a[12], a31 = a[13], a32 = a[14], a33 = a[15]; + + // Cache only the current line of the second matrix + let b0 = b[0], b1 = b[1], b2 = b[2], b3 = b[3]; + out[0] = b0*a00 + b1*a10 + b2*a20 + b3*a30; + out[1] = b0*a01 + b1*a11 + b2*a21 + b3*a31; + out[2] = b0*a02 + b1*a12 + b2*a22 + b3*a32; + out[3] = b0*a03 + b1*a13 + b2*a23 + b3*a33; + + b0 = b[4]; b1 = b[5]; b2 = b[6]; b3 = b[7]; + out[4] = b0*a00 + b1*a10 + b2*a20 + b3*a30; + out[5] = b0*a01 + b1*a11 + b2*a21 + b3*a31; + out[6] = b0*a02 + b1*a12 + b2*a22 + b3*a32; + out[7] = b0*a03 + b1*a13 + b2*a23 + b3*a33; + + b0 = b[8]; b1 = b[9]; b2 = b[10]; b3 = b[11]; + out[8] = b0*a00 + b1*a10 + b2*a20 + b3*a30; + out[9] = b0*a01 + b1*a11 + b2*a21 + b3*a31; + out[10] = b0*a02 + b1*a12 + b2*a22 + b3*a32; + out[11] = b0*a03 + b1*a13 + b2*a23 + b3*a33; + + b0 = b[12]; b1 = b[13]; b2 = b[14]; b3 = b[15]; + out[12] = b0*a00 + b1*a10 + b2*a20 + b3*a30; + out[13] = b0*a01 + b1*a11 + b2*a21 + b3*a31; + out[14] = b0*a02 + b1*a12 + b2*a22 + b3*a32; + out[15] = b0*a03 + b1*a13 + b2*a23 + b3*a33; + return out; +} + +/** + * Translate a mat4 by the given vector + * + * @param {mat4} out the receiving matrix + * @param {mat4} a the matrix to translate + * @param {vec3} v vector to translate by + * @returns {mat4} out + */ +function translate(out, a, v) { + let x = v[0], y = v[1], z = v[2]; + let a00, a01, a02, a03; + let a10, a11, a12, a13; + let a20, a21, a22, a23; + + if (a === out) { + out[12] = a[0] * x + a[4] * y + a[8] * z + a[12]; + out[13] = a[1] * x + a[5] * y + a[9] * z + a[13]; + out[14] = a[2] * x + a[6] * y + a[10] * z + a[14]; + out[15] = a[3] * x + a[7] * y + a[11] * z + a[15]; + } else { + a00 = a[0]; a01 = a[1]; a02 = a[2]; a03 = a[3]; + a10 = a[4]; a11 = a[5]; a12 = a[6]; a13 = a[7]; + a20 = a[8]; a21 = a[9]; a22 = a[10]; a23 = a[11]; + + out[0] = a00; out[1] = a01; out[2] = a02; out[3] = a03; + out[4] = a10; out[5] = a11; out[6] = a12; out[7] = a13; + out[8] = a20; out[9] = a21; out[10] = a22; out[11] = a23; + + out[12] = a00 * x + a10 * y + a20 * z + a[12]; + out[13] = a01 * x + a11 * y + a21 * z + a[13]; + out[14] = a02 * x + a12 * y + a22 * z + a[14]; + out[15] = a03 * x + a13 * y + a23 * z + a[15]; + } + + return out; +} + +/** + * Scales the mat4 by the dimensions in the given vec3 not using vectorization + * + * @param {mat4} out the receiving matrix + * @param {mat4} a the matrix to scale + * @param {vec3} v the vec3 to scale the matrix by + * @returns {mat4} out + **/ +function scale(out, a, v) { + let x = v[0], y = v[1], z = v[2]; + + out[0] = a[0] * x; + out[1] = a[1] * x; + out[2] = a[2] * x; + out[3] = a[3] * x; + out[4] = a[4] * y; + out[5] = a[5] * y; + out[6] = a[6] * y; + out[7] = a[7] * y; + out[8] = a[8] * z; + out[9] = a[9] * z; + out[10] = a[10] * z; + out[11] = a[11] * z; + out[12] = a[12]; + out[13] = a[13]; + out[14] = a[14]; + out[15] = a[15]; + return out; +} + +/** + * Rotates a mat4 by the given angle around the given axis + * + * @param {mat4} out the receiving matrix + * @param {mat4} a the matrix to rotate + * @param {Number} rad the angle to rotate the matrix by + * @param {vec3} axis the axis to rotate around + * @returns {mat4} out + */ +function rotate(out, a, rad, axis) { + let x = axis[0], y = axis[1], z = axis[2]; + let len = Math.sqrt(x * x + y * y + z * z); + let s, c, t; + let a00, a01, a02, a03; + let a10, a11, a12, a13; + let a20, a21, a22, a23; + let b00, b01, b02; + let b10, b11, b12; + let b20, b21, b22; + + if (Math.abs(len) < __WEBPACK_IMPORTED_MODULE_0__common__["b" /* EPSILON */]) { return null; } + + len = 1 / len; + x *= len; + y *= len; + z *= len; + + s = Math.sin(rad); + c = Math.cos(rad); + t = 1 - c; + + a00 = a[0]; a01 = a[1]; a02 = a[2]; a03 = a[3]; + a10 = a[4]; a11 = a[5]; a12 = a[6]; a13 = a[7]; + a20 = a[8]; a21 = a[9]; a22 = a[10]; a23 = a[11]; + + // Construct the elements of the rotation matrix + b00 = x * x * t + c; b01 = y * x * t + z * s; b02 = z * x * t - y * s; + b10 = x * y * t - z * s; b11 = y * y * t + c; b12 = z * y * t + x * s; + b20 = x * z * t + y * s; b21 = y * z * t - x * s; b22 = z * z * t + c; + + // Perform rotation-specific matrix multiplication + out[0] = a00 * b00 + a10 * b01 + a20 * b02; + out[1] = a01 * b00 + a11 * b01 + a21 * b02; + out[2] = a02 * b00 + a12 * b01 + a22 * b02; + out[3] = a03 * b00 + a13 * b01 + a23 * b02; + out[4] = a00 * b10 + a10 * b11 + a20 * b12; + out[5] = a01 * b10 + a11 * b11 + a21 * b12; + out[6] = a02 * b10 + a12 * b11 + a22 * b12; + out[7] = a03 * b10 + a13 * b11 + a23 * b12; + out[8] = a00 * b20 + a10 * b21 + a20 * b22; + out[9] = a01 * b20 + a11 * b21 + a21 * b22; + out[10] = a02 * b20 + a12 * b21 + a22 * b22; + out[11] = a03 * b20 + a13 * b21 + a23 * b22; + + if (a !== out) { // If the source and destination differ, copy the unchanged last row + out[12] = a[12]; + out[13] = a[13]; + out[14] = a[14]; + out[15] = a[15]; + } + return out; +} + +/** + * Rotates a matrix by the given angle around the X axis + * + * @param {mat4} out the receiving matrix + * @param {mat4} a the matrix to rotate + * @param {Number} rad the angle to rotate the matrix by + * @returns {mat4} out + */ +function rotateX(out, a, rad) { + let s = Math.sin(rad); + let c = Math.cos(rad); + let a10 = a[4]; + let a11 = a[5]; + let a12 = a[6]; + let a13 = a[7]; + let a20 = a[8]; + let a21 = a[9]; + let a22 = a[10]; + let a23 = a[11]; + + if (a !== out) { // If the source and destination differ, copy the unchanged rows + out[0] = a[0]; + out[1] = a[1]; + out[2] = a[2]; + out[3] = a[3]; + out[12] = a[12]; + out[13] = a[13]; + out[14] = a[14]; + out[15] = a[15]; + } + + // Perform axis-specific matrix multiplication + out[4] = a10 * c + a20 * s; + out[5] = a11 * c + a21 * s; + out[6] = a12 * c + a22 * s; + out[7] = a13 * c + a23 * s; + out[8] = a20 * c - a10 * s; + out[9] = a21 * c - a11 * s; + out[10] = a22 * c - a12 * s; + out[11] = a23 * c - a13 * s; + return out; +} + +/** + * Rotates a matrix by the given angle around the Y axis + * + * @param {mat4} out the receiving matrix + * @param {mat4} a the matrix to rotate + * @param {Number} rad the angle to rotate the matrix by + * @returns {mat4} out + */ +function rotateY(out, a, rad) { + let s = Math.sin(rad); + let c = Math.cos(rad); + let a00 = a[0]; + let a01 = a[1]; + let a02 = a[2]; + let a03 = a[3]; + let a20 = a[8]; + let a21 = a[9]; + let a22 = a[10]; + let a23 = a[11]; + + if (a !== out) { // If the source and destination differ, copy the unchanged rows + out[4] = a[4]; + out[5] = a[5]; + out[6] = a[6]; + out[7] = a[7]; + out[12] = a[12]; + out[13] = a[13]; + out[14] = a[14]; + out[15] = a[15]; + } + + // Perform axis-specific matrix multiplication + out[0] = a00 * c - a20 * s; + out[1] = a01 * c - a21 * s; + out[2] = a02 * c - a22 * s; + out[3] = a03 * c - a23 * s; + out[8] = a00 * s + a20 * c; + out[9] = a01 * s + a21 * c; + out[10] = a02 * s + a22 * c; + out[11] = a03 * s + a23 * c; + return out; +} + +/** + * Rotates a matrix by the given angle around the Z axis + * + * @param {mat4} out the receiving matrix + * @param {mat4} a the matrix to rotate + * @param {Number} rad the angle to rotate the matrix by + * @returns {mat4} out + */ +function rotateZ(out, a, rad) { + let s = Math.sin(rad); + let c = Math.cos(rad); + let a00 = a[0]; + let a01 = a[1]; + let a02 = a[2]; + let a03 = a[3]; + let a10 = a[4]; + let a11 = a[5]; + let a12 = a[6]; + let a13 = a[7]; + + if (a !== out) { // If the source and destination differ, copy the unchanged last row + out[8] = a[8]; + out[9] = a[9]; + out[10] = a[10]; + out[11] = a[11]; + out[12] = a[12]; + out[13] = a[13]; + out[14] = a[14]; + out[15] = a[15]; + } + + // Perform axis-specific matrix multiplication + out[0] = a00 * c + a10 * s; + out[1] = a01 * c + a11 * s; + out[2] = a02 * c + a12 * s; + out[3] = a03 * c + a13 * s; + out[4] = a10 * c - a00 * s; + out[5] = a11 * c - a01 * s; + out[6] = a12 * c - a02 * s; + out[7] = a13 * c - a03 * s; + return out; +} + +/** + * Creates a matrix from a vector translation + * This is equivalent to (but much faster than): + * + * mat4.identity(dest); + * mat4.translate(dest, dest, vec); + * + * @param {mat4} out mat4 receiving operation result + * @param {vec3} v Translation vector + * @returns {mat4} out + */ +function fromTranslation(out, v) { + out[0] = 1; + out[1] = 0; + out[2] = 0; + out[3] = 0; + out[4] = 0; + out[5] = 1; + out[6] = 0; + out[7] = 0; + out[8] = 0; + out[9] = 0; + out[10] = 1; + out[11] = 0; + out[12] = v[0]; + out[13] = v[1]; + out[14] = v[2]; + out[15] = 1; + return out; +} + +/** + * Creates a matrix from a vector scaling + * This is equivalent to (but much faster than): + * + * mat4.identity(dest); + * mat4.scale(dest, dest, vec); + * + * @param {mat4} out mat4 receiving operation result + * @param {vec3} v Scaling vector + * @returns {mat4} out + */ +function fromScaling(out, v) { + out[0] = v[0]; + out[1] = 0; + out[2] = 0; + out[3] = 0; + out[4] = 0; + out[5] = v[1]; + out[6] = 0; + out[7] = 0; + out[8] = 0; + out[9] = 0; + out[10] = v[2]; + out[11] = 0; + out[12] = 0; + out[13] = 0; + out[14] = 0; + out[15] = 1; + return out; +} + +/** + * Creates a matrix from a given angle around a given axis + * This is equivalent to (but much faster than): + * + * mat4.identity(dest); + * mat4.rotate(dest, dest, rad, axis); + * + * @param {mat4} out mat4 receiving operation result + * @param {Number} rad the angle to rotate the matrix by + * @param {vec3} axis the axis to rotate around + * @returns {mat4} out + */ +function fromRotation(out, rad, axis) { + let x = axis[0], y = axis[1], z = axis[2]; + let len = Math.sqrt(x * x + y * y + z * z); + let s, c, t; + + if (Math.abs(len) < __WEBPACK_IMPORTED_MODULE_0__common__["b" /* EPSILON */]) { return null; } + + len = 1 / len; + x *= len; + y *= len; + z *= len; + + s = Math.sin(rad); + c = Math.cos(rad); + t = 1 - c; + + // Perform rotation-specific matrix multiplication + out[0] = x * x * t + c; + out[1] = y * x * t + z * s; + out[2] = z * x * t - y * s; + out[3] = 0; + out[4] = x * y * t - z * s; + out[5] = y * y * t + c; + out[6] = z * y * t + x * s; + out[7] = 0; + out[8] = x * z * t + y * s; + out[9] = y * z * t - x * s; + out[10] = z * z * t + c; + out[11] = 0; + out[12] = 0; + out[13] = 0; + out[14] = 0; + out[15] = 1; + return out; +} + +/** + * Creates a matrix from the given angle around the X axis + * This is equivalent to (but much faster than): + * + * mat4.identity(dest); + * mat4.rotateX(dest, dest, rad); + * + * @param {mat4} out mat4 receiving operation result + * @param {Number} rad the angle to rotate the matrix by + * @returns {mat4} out + */ +function fromXRotation(out, rad) { + let s = Math.sin(rad); + let c = Math.cos(rad); + + // Perform axis-specific matrix multiplication + out[0] = 1; + out[1] = 0; + out[2] = 0; + out[3] = 0; + out[4] = 0; + out[5] = c; + out[6] = s; + out[7] = 0; + out[8] = 0; + out[9] = -s; + out[10] = c; + out[11] = 0; + out[12] = 0; + out[13] = 0; + out[14] = 0; + out[15] = 1; + return out; +} + +/** + * Creates a matrix from the given angle around the Y axis + * This is equivalent to (but much faster than): + * + * mat4.identity(dest); + * mat4.rotateY(dest, dest, rad); + * + * @param {mat4} out mat4 receiving operation result + * @param {Number} rad the angle to rotate the matrix by + * @returns {mat4} out + */ +function fromYRotation(out, rad) { + let s = Math.sin(rad); + let c = Math.cos(rad); + + // Perform axis-specific matrix multiplication + out[0] = c; + out[1] = 0; + out[2] = -s; + out[3] = 0; + out[4] = 0; + out[5] = 1; + out[6] = 0; + out[7] = 0; + out[8] = s; + out[9] = 0; + out[10] = c; + out[11] = 0; + out[12] = 0; + out[13] = 0; + out[14] = 0; + out[15] = 1; + return out; +} + +/** + * Creates a matrix from the given angle around the Z axis + * This is equivalent to (but much faster than): + * + * mat4.identity(dest); + * mat4.rotateZ(dest, dest, rad); + * + * @param {mat4} out mat4 receiving operation result + * @param {Number} rad the angle to rotate the matrix by + * @returns {mat4} out + */ +function fromZRotation(out, rad) { + let s = Math.sin(rad); + let c = Math.cos(rad); + + // Perform axis-specific matrix multiplication + out[0] = c; + out[1] = s; + out[2] = 0; + out[3] = 0; + out[4] = -s; + out[5] = c; + out[6] = 0; + out[7] = 0; + out[8] = 0; + out[9] = 0; + out[10] = 1; + out[11] = 0; + out[12] = 0; + out[13] = 0; + out[14] = 0; + out[15] = 1; + return out; +} + +/** + * Creates a matrix from a quaternion rotation and vector translation + * This is equivalent to (but much faster than): + * + * mat4.identity(dest); + * mat4.translate(dest, vec); + * let quatMat = mat4.create(); + * quat4.toMat4(quat, quatMat); + * mat4.multiply(dest, quatMat); + * + * @param {mat4} out mat4 receiving operation result + * @param {quat4} q Rotation quaternion + * @param {vec3} v Translation vector + * @returns {mat4} out + */ +function fromRotationTranslation(out, q, v) { + // Quaternion math + let x = q[0], y = q[1], z = q[2], w = q[3]; + let x2 = x + x; + let y2 = y + y; + let z2 = z + z; + + let xx = x * x2; + let xy = x * y2; + let xz = x * z2; + let yy = y * y2; + let yz = y * z2; + let zz = z * z2; + let wx = w * x2; + let wy = w * y2; + let wz = w * z2; + + out[0] = 1 - (yy + zz); + out[1] = xy + wz; + out[2] = xz - wy; + out[3] = 0; + out[4] = xy - wz; + out[5] = 1 - (xx + zz); + out[6] = yz + wx; + out[7] = 0; + out[8] = xz + wy; + out[9] = yz - wx; + out[10] = 1 - (xx + yy); + out[11] = 0; + out[12] = v[0]; + out[13] = v[1]; + out[14] = v[2]; + out[15] = 1; + + return out; +} + +/** + * Returns the translation vector component of a transformation + * matrix. If a matrix is built with fromRotationTranslation, + * the returned vector will be the same as the translation vector + * originally supplied. + * @param {vec3} out Vector to receive translation component + * @param {mat4} mat Matrix to be decomposed (input) + * @return {vec3} out + */ +function getTranslation(out, mat) { + out[0] = mat[12]; + out[1] = mat[13]; + out[2] = mat[14]; + + return out; +} + +/** + * Returns the scaling factor component of a transformation + * matrix. If a matrix is built with fromRotationTranslationScale + * with a normalized Quaternion paramter, the returned vector will be + * the same as the scaling vector + * originally supplied. + * @param {vec3} out Vector to receive scaling factor component + * @param {mat4} mat Matrix to be decomposed (input) + * @return {vec3} out + */ +function getScaling(out, mat) { + let m11 = mat[0]; + let m12 = mat[1]; + let m13 = mat[2]; + let m21 = mat[4]; + let m22 = mat[5]; + let m23 = mat[6]; + let m31 = mat[8]; + let m32 = mat[9]; + let m33 = mat[10]; + + out[0] = Math.sqrt(m11 * m11 + m12 * m12 + m13 * m13); + out[1] = Math.sqrt(m21 * m21 + m22 * m22 + m23 * m23); + out[2] = Math.sqrt(m31 * m31 + m32 * m32 + m33 * m33); + + return out; +} + +/** + * Returns a quaternion representing the rotational component + * of a transformation matrix. If a matrix is built with + * fromRotationTranslation, the returned quaternion will be the + * same as the quaternion originally supplied. + * @param {quat} out Quaternion to receive the rotation component + * @param {mat4} mat Matrix to be decomposed (input) + * @return {quat} out + */ +function getRotation(out, mat) { + // Algorithm taken from http://www.euclideanspace.com/maths/geometry/rotations/conversions/matrixToQuaternion/index.htm + let trace = mat[0] + mat[5] + mat[10]; + let S = 0; + + if (trace > 0) { + S = Math.sqrt(trace + 1.0) * 2; + out[3] = 0.25 * S; + out[0] = (mat[6] - mat[9]) / S; + out[1] = (mat[8] - mat[2]) / S; + out[2] = (mat[1] - mat[4]) / S; + } else if ((mat[0] > mat[5])&(mat[0] > mat[10])) { + S = Math.sqrt(1.0 + mat[0] - mat[5] - mat[10]) * 2; + out[3] = (mat[6] - mat[9]) / S; + out[0] = 0.25 * S; + out[1] = (mat[1] + mat[4]) / S; + out[2] = (mat[8] + mat[2]) / S; + } else if (mat[5] > mat[10]) { + S = Math.sqrt(1.0 + mat[5] - mat[0] - mat[10]) * 2; + out[3] = (mat[8] - mat[2]) / S; + out[0] = (mat[1] + mat[4]) / S; + out[1] = 0.25 * S; + out[2] = (mat[6] + mat[9]) / S; + } else { + S = Math.sqrt(1.0 + mat[10] - mat[0] - mat[5]) * 2; + out[3] = (mat[1] - mat[4]) / S; + out[0] = (mat[8] + mat[2]) / S; + out[1] = (mat[6] + mat[9]) / S; + out[2] = 0.25 * S; + } + + return out; +} + +/** + * Creates a matrix from a quaternion rotation, vector translation and vector scale + * This is equivalent to (but much faster than): + * + * mat4.identity(dest); + * mat4.translate(dest, vec); + * let quatMat = mat4.create(); + * quat4.toMat4(quat, quatMat); + * mat4.multiply(dest, quatMat); + * mat4.scale(dest, scale) + * + * @param {mat4} out mat4 receiving operation result + * @param {quat4} q Rotation quaternion + * @param {vec3} v Translation vector + * @param {vec3} s Scaling vector + * @returns {mat4} out + */ +function fromRotationTranslationScale(out, q, v, s) { + // Quaternion math + let x = q[0], y = q[1], z = q[2], w = q[3]; + let x2 = x + x; + let y2 = y + y; + let z2 = z + z; + + let xx = x * x2; + let xy = x * y2; + let xz = x * z2; + let yy = y * y2; + let yz = y * z2; + let zz = z * z2; + let wx = w * x2; + let wy = w * y2; + let wz = w * z2; + let sx = s[0]; + let sy = s[1]; + let sz = s[2]; + + out[0] = (1 - (yy + zz)) * sx; + out[1] = (xy + wz) * sx; + out[2] = (xz - wy) * sx; + out[3] = 0; + out[4] = (xy - wz) * sy; + out[5] = (1 - (xx + zz)) * sy; + out[6] = (yz + wx) * sy; + out[7] = 0; + out[8] = (xz + wy) * sz; + out[9] = (yz - wx) * sz; + out[10] = (1 - (xx + yy)) * sz; + out[11] = 0; + out[12] = v[0]; + out[13] = v[1]; + out[14] = v[2]; + out[15] = 1; + + return out; +} + +/** + * Creates a matrix from a quaternion rotation, vector translation and vector scale, rotating and scaling around the given origin + * This is equivalent to (but much faster than): + * + * mat4.identity(dest); + * mat4.translate(dest, vec); + * mat4.translate(dest, origin); + * let quatMat = mat4.create(); + * quat4.toMat4(quat, quatMat); + * mat4.multiply(dest, quatMat); + * mat4.scale(dest, scale) + * mat4.translate(dest, negativeOrigin); + * + * @param {mat4} out mat4 receiving operation result + * @param {quat4} q Rotation quaternion + * @param {vec3} v Translation vector + * @param {vec3} s Scaling vector + * @param {vec3} o The origin vector around which to scale and rotate + * @returns {mat4} out + */ +function fromRotationTranslationScaleOrigin(out, q, v, s, o) { + // Quaternion math + let x = q[0], y = q[1], z = q[2], w = q[3]; + let x2 = x + x; + let y2 = y + y; + let z2 = z + z; + + let xx = x * x2; + let xy = x * y2; + let xz = x * z2; + let yy = y * y2; + let yz = y * z2; + let zz = z * z2; + let wx = w * x2; + let wy = w * y2; + let wz = w * z2; + + let sx = s[0]; + let sy = s[1]; + let sz = s[2]; + + let ox = o[0]; + let oy = o[1]; + let oz = o[2]; + + out[0] = (1 - (yy + zz)) * sx; + out[1] = (xy + wz) * sx; + out[2] = (xz - wy) * sx; + out[3] = 0; + out[4] = (xy - wz) * sy; + out[5] = (1 - (xx + zz)) * sy; + out[6] = (yz + wx) * sy; + out[7] = 0; + out[8] = (xz + wy) * sz; + out[9] = (yz - wx) * sz; + out[10] = (1 - (xx + yy)) * sz; + out[11] = 0; + out[12] = v[0] + ox - (out[0] * ox + out[4] * oy + out[8] * oz); + out[13] = v[1] + oy - (out[1] * ox + out[5] * oy + out[9] * oz); + out[14] = v[2] + oz - (out[2] * ox + out[6] * oy + out[10] * oz); + out[15] = 1; + + return out; +} + +/** + * Calculates a 4x4 matrix from the given quaternion + * + * @param {mat4} out mat4 receiving operation result + * @param {quat} q Quaternion to create matrix from + * + * @returns {mat4} out + */ +function fromQuat(out, q) { + let x = q[0], y = q[1], z = q[2], w = q[3]; + let x2 = x + x; + let y2 = y + y; + let z2 = z + z; + + let xx = x * x2; + let yx = y * x2; + let yy = y * y2; + let zx = z * x2; + let zy = z * y2; + let zz = z * z2; + let wx = w * x2; + let wy = w * y2; + let wz = w * z2; + + out[0] = 1 - yy - zz; + out[1] = yx + wz; + out[2] = zx - wy; + out[3] = 0; + + out[4] = yx - wz; + out[5] = 1 - xx - zz; + out[6] = zy + wx; + out[7] = 0; + + out[8] = zx + wy; + out[9] = zy - wx; + out[10] = 1 - xx - yy; + out[11] = 0; + + out[12] = 0; + out[13] = 0; + out[14] = 0; + out[15] = 1; + + return out; +} + +/** + * Generates a frustum matrix with the given bounds + * + * @param {mat4} out mat4 frustum matrix will be written into + * @param {Number} left Left bound of the frustum + * @param {Number} right Right bound of the frustum + * @param {Number} bottom Bottom bound of the frustum + * @param {Number} top Top bound of the frustum + * @param {Number} near Near bound of the frustum + * @param {Number} far Far bound of the frustum + * @returns {mat4} out + */ +function frustum(out, left, right, bottom, top, near, far) { + let rl = 1 / (right - left); + let tb = 1 / (top - bottom); + let nf = 1 / (near - far); + out[0] = (near * 2) * rl; + out[1] = 0; + out[2] = 0; + out[3] = 0; + out[4] = 0; + out[5] = (near * 2) * tb; + out[6] = 0; + out[7] = 0; + out[8] = (right + left) * rl; + out[9] = (top + bottom) * tb; + out[10] = (far + near) * nf; + out[11] = -1; + out[12] = 0; + out[13] = 0; + out[14] = (far * near * 2) * nf; + out[15] = 0; + return out; +} + +/** + * Generates a perspective projection matrix with the given bounds + * + * @param {mat4} out mat4 frustum matrix will be written into + * @param {number} fovy Vertical field of view in radians + * @param {number} aspect Aspect ratio. typically viewport width/height + * @param {number} near Near bound of the frustum + * @param {number} far Far bound of the frustum + * @returns {mat4} out + */ +function perspective(out, fovy, aspect, near, far) { + let f = 1.0 / Math.tan(fovy / 2); + let nf = 1 / (near - far); + out[0] = f / aspect; + out[1] = 0; + out[2] = 0; + out[3] = 0; + out[4] = 0; + out[5] = f; + out[6] = 0; + out[7] = 0; + out[8] = 0; + out[9] = 0; + out[10] = (far + near) * nf; + out[11] = -1; + out[12] = 0; + out[13] = 0; + out[14] = (2 * far * near) * nf; + out[15] = 0; + return out; +} + +/** + * Generates a perspective projection matrix with the given field of view. + * This is primarily useful for generating projection matrices to be used + * with the still experiemental WebVR API. + * + * @param {mat4} out mat4 frustum matrix will be written into + * @param {Object} fov Object containing the following values: upDegrees, downDegrees, leftDegrees, rightDegrees + * @param {number} near Near bound of the frustum + * @param {number} far Far bound of the frustum + * @returns {mat4} out + */ +function perspectiveFromFieldOfView(out, fov, near, far) { + let upTan = Math.tan(fov.upDegrees * Math.PI/180.0); + let downTan = Math.tan(fov.downDegrees * Math.PI/180.0); + let leftTan = Math.tan(fov.leftDegrees * Math.PI/180.0); + let rightTan = Math.tan(fov.rightDegrees * Math.PI/180.0); + let xScale = 2.0 / (leftTan + rightTan); + let yScale = 2.0 / (upTan + downTan); + + out[0] = xScale; + out[1] = 0.0; + out[2] = 0.0; + out[3] = 0.0; + out[4] = 0.0; + out[5] = yScale; + out[6] = 0.0; + out[7] = 0.0; + out[8] = -((leftTan - rightTan) * xScale * 0.5); + out[9] = ((upTan - downTan) * yScale * 0.5); + out[10] = far / (near - far); + out[11] = -1.0; + out[12] = 0.0; + out[13] = 0.0; + out[14] = (far * near) / (near - far); + out[15] = 0.0; + return out; +} + +/** + * Generates a orthogonal projection matrix with the given bounds + * + * @param {mat4} out mat4 frustum matrix will be written into + * @param {number} left Left bound of the frustum + * @param {number} right Right bound of the frustum + * @param {number} bottom Bottom bound of the frustum + * @param {number} top Top bound of the frustum + * @param {number} near Near bound of the frustum + * @param {number} far Far bound of the frustum + * @returns {mat4} out + */ +function ortho(out, left, right, bottom, top, near, far) { + let lr = 1 / (left - right); + let bt = 1 / (bottom - top); + let nf = 1 / (near - far); + out[0] = -2 * lr; + out[1] = 0; + out[2] = 0; + out[3] = 0; + out[4] = 0; + out[5] = -2 * bt; + out[6] = 0; + out[7] = 0; + out[8] = 0; + out[9] = 0; + out[10] = 2 * nf; + out[11] = 0; + out[12] = (left + right) * lr; + out[13] = (top + bottom) * bt; + out[14] = (far + near) * nf; + out[15] = 1; + return out; +} + +/** + * Generates a look-at matrix with the given eye position, focal point, and up axis + * + * @param {mat4} out mat4 frustum matrix will be written into + * @param {vec3} eye Position of the viewer + * @param {vec3} center Point the viewer is looking at + * @param {vec3} up vec3 pointing up + * @returns {mat4} out + */ +function lookAt(out, eye, center, up) { + let x0, x1, x2, y0, y1, y2, z0, z1, z2, len; + let eyex = eye[0]; + let eyey = eye[1]; + let eyez = eye[2]; + let upx = up[0]; + let upy = up[1]; + let upz = up[2]; + let centerx = center[0]; + let centery = center[1]; + let centerz = center[2]; + + if (Math.abs(eyex - centerx) < __WEBPACK_IMPORTED_MODULE_0__common__["b" /* EPSILON */] && + Math.abs(eyey - centery) < __WEBPACK_IMPORTED_MODULE_0__common__["b" /* EPSILON */] && + Math.abs(eyez - centerz) < __WEBPACK_IMPORTED_MODULE_0__common__["b" /* EPSILON */]) { + return mat4.identity(out); + } + + z0 = eyex - centerx; + z1 = eyey - centery; + z2 = eyez - centerz; + + len = 1 / Math.sqrt(z0 * z0 + z1 * z1 + z2 * z2); + z0 *= len; + z1 *= len; + z2 *= len; + + x0 = upy * z2 - upz * z1; + x1 = upz * z0 - upx * z2; + x2 = upx * z1 - upy * z0; + len = Math.sqrt(x0 * x0 + x1 * x1 + x2 * x2); + if (!len) { + x0 = 0; + x1 = 0; + x2 = 0; + } else { + len = 1 / len; + x0 *= len; + x1 *= len; + x2 *= len; + } + + y0 = z1 * x2 - z2 * x1; + y1 = z2 * x0 - z0 * x2; + y2 = z0 * x1 - z1 * x0; + + len = Math.sqrt(y0 * y0 + y1 * y1 + y2 * y2); + if (!len) { + y0 = 0; + y1 = 0; + y2 = 0; + } else { + len = 1 / len; + y0 *= len; + y1 *= len; + y2 *= len; + } + + out[0] = x0; + out[1] = y0; + out[2] = z0; + out[3] = 0; + out[4] = x1; + out[5] = y1; + out[6] = z1; + out[7] = 0; + out[8] = x2; + out[9] = y2; + out[10] = z2; + out[11] = 0; + out[12] = -(x0 * eyex + x1 * eyey + x2 * eyez); + out[13] = -(y0 * eyex + y1 * eyey + y2 * eyez); + out[14] = -(z0 * eyex + z1 * eyey + z2 * eyez); + out[15] = 1; + + return out; +} + +/** + * Generates a matrix that makes something look at something else. + * + * @param {mat4} out mat4 frustum matrix will be written into + * @param {vec3} eye Position of the viewer + * @param {vec3} center Point the viewer is looking at + * @param {vec3} up vec3 pointing up + * @returns {mat4} out + */ +function targetTo(out, eye, target, up) { + let eyex = eye[0], + eyey = eye[1], + eyez = eye[2], + upx = up[0], + upy = up[1], + upz = up[2]; + + let z0 = eyex - target[0], + z1 = eyey - target[1], + z2 = eyez - target[2]; + + let len = z0*z0 + z1*z1 + z2*z2; + if (len > 0) { + len = 1 / Math.sqrt(len); + z0 *= len; + z1 *= len; + z2 *= len; + } + + let x0 = upy * z2 - upz * z1, + x1 = upz * z0 - upx * z2, + x2 = upx * z1 - upy * z0; + + out[0] = x0; + out[1] = x1; + out[2] = x2; + out[3] = 0; + out[4] = z1 * x2 - z2 * x1; + out[5] = z2 * x0 - z0 * x2; + out[6] = z0 * x1 - z1 * x0; + out[7] = 0; + out[8] = z0; + out[9] = z1; + out[10] = z2; + out[11] = 0; + out[12] = eyex; + out[13] = eyey; + out[14] = eyez; + out[15] = 1; + return out; +}; + +/** + * Returns a string representation of a mat4 + * + * @param {mat4} a matrix to represent as a string + * @returns {String} string representation of the matrix + */ +function str(a) { + return 'mat4(' + a[0] + ', ' + a[1] + ', ' + a[2] + ', ' + a[3] + ', ' + + a[4] + ', ' + a[5] + ', ' + a[6] + ', ' + a[7] + ', ' + + a[8] + ', ' + a[9] + ', ' + a[10] + ', ' + a[11] + ', ' + + a[12] + ', ' + a[13] + ', ' + a[14] + ', ' + a[15] + ')'; +} + +/** + * Returns Frobenius norm of a mat4 + * + * @param {mat4} a the matrix to calculate Frobenius norm of + * @returns {Number} Frobenius norm + */ +function frob(a) { + return(Math.sqrt(Math.pow(a[0], 2) + Math.pow(a[1], 2) + Math.pow(a[2], 2) + Math.pow(a[3], 2) + Math.pow(a[4], 2) + Math.pow(a[5], 2) + Math.pow(a[6], 2) + Math.pow(a[7], 2) + Math.pow(a[8], 2) + Math.pow(a[9], 2) + Math.pow(a[10], 2) + Math.pow(a[11], 2) + Math.pow(a[12], 2) + Math.pow(a[13], 2) + Math.pow(a[14], 2) + Math.pow(a[15], 2) )) +} + +/** + * Adds two mat4's + * + * @param {mat4} out the receiving matrix + * @param {mat4} a the first operand + * @param {mat4} b the second operand + * @returns {mat4} out + */ +function add(out, a, b) { + out[0] = a[0] + b[0]; + out[1] = a[1] + b[1]; + out[2] = a[2] + b[2]; + out[3] = a[3] + b[3]; + out[4] = a[4] + b[4]; + out[5] = a[5] + b[5]; + out[6] = a[6] + b[6]; + out[7] = a[7] + b[7]; + out[8] = a[8] + b[8]; + out[9] = a[9] + b[9]; + out[10] = a[10] + b[10]; + out[11] = a[11] + b[11]; + out[12] = a[12] + b[12]; + out[13] = a[13] + b[13]; + out[14] = a[14] + b[14]; + out[15] = a[15] + b[15]; + return out; +} + +/** + * Subtracts matrix b from matrix a + * + * @param {mat4} out the receiving matrix + * @param {mat4} a the first operand + * @param {mat4} b the second operand + * @returns {mat4} out + */ +function subtract(out, a, b) { + out[0] = a[0] - b[0]; + out[1] = a[1] - b[1]; + out[2] = a[2] - b[2]; + out[3] = a[3] - b[3]; + out[4] = a[4] - b[4]; + out[5] = a[5] - b[5]; + out[6] = a[6] - b[6]; + out[7] = a[7] - b[7]; + out[8] = a[8] - b[8]; + out[9] = a[9] - b[9]; + out[10] = a[10] - b[10]; + out[11] = a[11] - b[11]; + out[12] = a[12] - b[12]; + out[13] = a[13] - b[13]; + out[14] = a[14] - b[14]; + out[15] = a[15] - b[15]; + return out; +} + +/** + * Multiply each element of the matrix by a scalar. + * + * @param {mat4} out the receiving matrix + * @param {mat4} a the matrix to scale + * @param {Number} b amount to scale the matrix's elements by + * @returns {mat4} out + */ +function multiplyScalar(out, a, b) { + out[0] = a[0] * b; + out[1] = a[1] * b; + out[2] = a[2] * b; + out[3] = a[3] * b; + out[4] = a[4] * b; + out[5] = a[5] * b; + out[6] = a[6] * b; + out[7] = a[7] * b; + out[8] = a[8] * b; + out[9] = a[9] * b; + out[10] = a[10] * b; + out[11] = a[11] * b; + out[12] = a[12] * b; + out[13] = a[13] * b; + out[14] = a[14] * b; + out[15] = a[15] * b; + return out; +} + +/** + * Adds two mat4's after multiplying each element of the second operand by a scalar value. + * + * @param {mat4} out the receiving vector + * @param {mat4} a the first operand + * @param {mat4} b the second operand + * @param {Number} scale the amount to scale b's elements by before adding + * @returns {mat4} out + */ +function multiplyScalarAndAdd(out, a, b, scale) { + out[0] = a[0] + (b[0] * scale); + out[1] = a[1] + (b[1] * scale); + out[2] = a[2] + (b[2] * scale); + out[3] = a[3] + (b[3] * scale); + out[4] = a[4] + (b[4] * scale); + out[5] = a[5] + (b[5] * scale); + out[6] = a[6] + (b[6] * scale); + out[7] = a[7] + (b[7] * scale); + out[8] = a[8] + (b[8] * scale); + out[9] = a[9] + (b[9] * scale); + out[10] = a[10] + (b[10] * scale); + out[11] = a[11] + (b[11] * scale); + out[12] = a[12] + (b[12] * scale); + out[13] = a[13] + (b[13] * scale); + out[14] = a[14] + (b[14] * scale); + out[15] = a[15] + (b[15] * scale); + return out; +} + +/** + * Returns whether or not the matrices have exactly the same elements in the same position (when compared with ===) + * + * @param {mat4} a The first matrix. + * @param {mat4} b The second matrix. + * @returns {Boolean} True if the matrices are equal, false otherwise. + */ +function exactEquals(a, b) { + return a[0] === b[0] && a[1] === b[1] && a[2] === b[2] && a[3] === b[3] && + a[4] === b[4] && a[5] === b[5] && a[6] === b[6] && a[7] === b[7] && + a[8] === b[8] && a[9] === b[9] && a[10] === b[10] && a[11] === b[11] && + a[12] === b[12] && a[13] === b[13] && a[14] === b[14] && a[15] === b[15]; +} + +/** + * Returns whether or not the matrices have approximately the same elements in the same position. + * + * @param {mat4} a The first matrix. + * @param {mat4} b The second matrix. + * @returns {Boolean} True if the matrices are equal, false otherwise. + */ +function equals(a, b) { + let a0 = a[0], a1 = a[1], a2 = a[2], a3 = a[3]; + let a4 = a[4], a5 = a[5], a6 = a[6], a7 = a[7]; + let a8 = a[8], a9 = a[9], a10 = a[10], a11 = a[11]; + let a12 = a[12], a13 = a[13], a14 = a[14], a15 = a[15]; + + let b0 = b[0], b1 = b[1], b2 = b[2], b3 = b[3]; + let b4 = b[4], b5 = b[5], b6 = b[6], b7 = b[7]; + let b8 = b[8], b9 = b[9], b10 = b[10], b11 = b[11]; + let b12 = b[12], b13 = b[13], b14 = b[14], b15 = b[15]; + + return (Math.abs(a0 - b0) <= __WEBPACK_IMPORTED_MODULE_0__common__["b" /* EPSILON */]*Math.max(1.0, Math.abs(a0), Math.abs(b0)) && + Math.abs(a1 - b1) <= __WEBPACK_IMPORTED_MODULE_0__common__["b" /* EPSILON */]*Math.max(1.0, Math.abs(a1), Math.abs(b1)) && + Math.abs(a2 - b2) <= __WEBPACK_IMPORTED_MODULE_0__common__["b" /* EPSILON */]*Math.max(1.0, Math.abs(a2), Math.abs(b2)) && + Math.abs(a3 - b3) <= __WEBPACK_IMPORTED_MODULE_0__common__["b" /* EPSILON */]*Math.max(1.0, Math.abs(a3), Math.abs(b3)) && + Math.abs(a4 - b4) <= __WEBPACK_IMPORTED_MODULE_0__common__["b" /* EPSILON */]*Math.max(1.0, Math.abs(a4), Math.abs(b4)) && + Math.abs(a5 - b5) <= __WEBPACK_IMPORTED_MODULE_0__common__["b" /* EPSILON */]*Math.max(1.0, Math.abs(a5), Math.abs(b5)) && + Math.abs(a6 - b6) <= __WEBPACK_IMPORTED_MODULE_0__common__["b" /* EPSILON */]*Math.max(1.0, Math.abs(a6), Math.abs(b6)) && + Math.abs(a7 - b7) <= __WEBPACK_IMPORTED_MODULE_0__common__["b" /* EPSILON */]*Math.max(1.0, Math.abs(a7), Math.abs(b7)) && + Math.abs(a8 - b8) <= __WEBPACK_IMPORTED_MODULE_0__common__["b" /* EPSILON */]*Math.max(1.0, Math.abs(a8), Math.abs(b8)) && + Math.abs(a9 - b9) <= __WEBPACK_IMPORTED_MODULE_0__common__["b" /* EPSILON */]*Math.max(1.0, Math.abs(a9), Math.abs(b9)) && + Math.abs(a10 - b10) <= __WEBPACK_IMPORTED_MODULE_0__common__["b" /* EPSILON */]*Math.max(1.0, Math.abs(a10), Math.abs(b10)) && + Math.abs(a11 - b11) <= __WEBPACK_IMPORTED_MODULE_0__common__["b" /* EPSILON */]*Math.max(1.0, Math.abs(a11), Math.abs(b11)) && + Math.abs(a12 - b12) <= __WEBPACK_IMPORTED_MODULE_0__common__["b" /* EPSILON */]*Math.max(1.0, Math.abs(a12), Math.abs(b12)) && + Math.abs(a13 - b13) <= __WEBPACK_IMPORTED_MODULE_0__common__["b" /* EPSILON */]*Math.max(1.0, Math.abs(a13), Math.abs(b13)) && + Math.abs(a14 - b14) <= __WEBPACK_IMPORTED_MODULE_0__common__["b" /* EPSILON */]*Math.max(1.0, Math.abs(a14), Math.abs(b14)) && + Math.abs(a15 - b15) <= __WEBPACK_IMPORTED_MODULE_0__common__["b" /* EPSILON */]*Math.max(1.0, Math.abs(a15), Math.abs(b15))); +} + +/** + * Alias for {@link mat4.multiply} + * @function + */ +const mul = multiply; +/* harmony export (immutable) */ __webpack_exports__["mul"] = mul; + + +/** + * Alias for {@link mat4.subtract} + * @function + */ +const sub = subtract; +/* harmony export (immutable) */ __webpack_exports__["sub"] = sub; + + + +/***/ }), +/* 23 */ +/***/ (function(module, __webpack_exports__, __webpack_require__) { + +"use strict"; +/* unused harmony export create */ +/* unused harmony export identity */ +/* unused harmony export setAxisAngle */ +/* unused harmony export getAxisAngle */ +/* unused harmony export multiply */ +/* unused harmony export rotateX */ +/* unused harmony export rotateY */ +/* unused harmony export rotateZ */ +/* unused harmony export calculateW */ +/* unused harmony export slerp */ +/* unused harmony export invert */ +/* unused harmony export conjugate */ +/* unused harmony export fromMat3 */ +/* unused harmony export fromEuler */ +/* unused harmony export str */ +/* harmony import */ var __WEBPACK_IMPORTED_MODULE_0__common__ = __webpack_require__(0); +/* harmony import */ var __WEBPACK_IMPORTED_MODULE_1__mat3__ = __webpack_require__(5); +/* harmony import */ var __WEBPACK_IMPORTED_MODULE_2__vec3__ = __webpack_require__(6); +/* harmony import */ var __WEBPACK_IMPORTED_MODULE_3__vec4__ = __webpack_require__(7); +/* Copyright (c) 2015, Brandon Jones, Colin MacKenzie IV. + +Permission is hereby granted, free of charge, to any person obtaining a copy +of this software and associated documentation files (the "Software"), to deal +in the Software without restriction, including without limitation the rights +to use, copy, modify, merge, publish, distribute, sublicense, and/or sell +copies of the Software, and to permit persons to whom the Software is +furnished to do so, subject to the following conditions: + +The above copyright notice and this permission notice shall be included in +all copies or substantial portions of the Software. + +THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR +IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, +FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE +AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER +LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, +OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN +THE SOFTWARE. */ + + + + + + +/** + * Quaternion + * @module quat + */ + +/** + * Creates a new identity quat + * + * @returns {quat} a new quaternion + */ +function create() { + let out = new __WEBPACK_IMPORTED_MODULE_0__common__["a" /* ARRAY_TYPE */](4); + out[0] = 0; + out[1] = 0; + out[2] = 0; + out[3] = 1; + return out; +} + +/** + * Set a quat to the identity quaternion + * + * @param {quat} out the receiving quaternion + * @returns {quat} out + */ +function identity(out) { + out[0] = 0; + out[1] = 0; + out[2] = 0; + out[3] = 1; + return out; +} + +/** + * Sets a quat from the given angle and rotation axis, + * then returns it. + * + * @param {quat} out the receiving quaternion + * @param {vec3} axis the axis around which to rotate + * @param {Number} rad the angle in radians + * @returns {quat} out + **/ +function setAxisAngle(out, axis, rad) { + rad = rad * 0.5; + let s = Math.sin(rad); + out[0] = s * axis[0]; + out[1] = s * axis[1]; + out[2] = s * axis[2]; + out[3] = Math.cos(rad); + return out; +} + +/** + * Gets the rotation axis and angle for a given + * quaternion. If a quaternion is created with + * setAxisAngle, this method will return the same + * values as providied in the original parameter list + * OR functionally equivalent values. + * Example: The quaternion formed by axis [0, 0, 1] and + * angle -90 is the same as the quaternion formed by + * [0, 0, 1] and 270. This method favors the latter. + * @param {vec3} out_axis Vector receiving the axis of rotation + * @param {quat} q Quaternion to be decomposed + * @return {Number} Angle, in radians, of the rotation + */ +function getAxisAngle(out_axis, q) { + let rad = Math.acos(q[3]) * 2.0; + let s = Math.sin(rad / 2.0); + if (s != 0.0) { + out_axis[0] = q[0] / s; + out_axis[1] = q[1] / s; + out_axis[2] = q[2] / s; + } else { + // If s is zero, return any axis (no rotation - axis does not matter) + out_axis[0] = 1; + out_axis[1] = 0; + out_axis[2] = 0; + } + return rad; +} + +/** + * Multiplies two quat's + * + * @param {quat} out the receiving quaternion + * @param {quat} a the first operand + * @param {quat} b the second operand + * @returns {quat} out + */ +function multiply(out, a, b) { + let ax = a[0], ay = a[1], az = a[2], aw = a[3]; + let bx = b[0], by = b[1], bz = b[2], bw = b[3]; + + out[0] = ax * bw + aw * bx + ay * bz - az * by; + out[1] = ay * bw + aw * by + az * bx - ax * bz; + out[2] = az * bw + aw * bz + ax * by - ay * bx; + out[3] = aw * bw - ax * bx - ay * by - az * bz; + return out; +} + +/** + * Rotates a quaternion by the given angle about the X axis + * + * @param {quat} out quat receiving operation result + * @param {quat} a quat to rotate + * @param {number} rad angle (in radians) to rotate + * @returns {quat} out + */ +function rotateX(out, a, rad) { + rad *= 0.5; + + let ax = a[0], ay = a[1], az = a[2], aw = a[3]; + let bx = Math.sin(rad), bw = Math.cos(rad); + + out[0] = ax * bw + aw * bx; + out[1] = ay * bw + az * bx; + out[2] = az * bw - ay * bx; + out[3] = aw * bw - ax * bx; + return out; +} + +/** + * Rotates a quaternion by the given angle about the Y axis + * + * @param {quat} out quat receiving operation result + * @param {quat} a quat to rotate + * @param {number} rad angle (in radians) to rotate + * @returns {quat} out + */ +function rotateY(out, a, rad) { + rad *= 0.5; + + let ax = a[0], ay = a[1], az = a[2], aw = a[3]; + let by = Math.sin(rad), bw = Math.cos(rad); + + out[0] = ax * bw - az * by; + out[1] = ay * bw + aw * by; + out[2] = az * bw + ax * by; + out[3] = aw * bw - ay * by; + return out; +} + +/** + * Rotates a quaternion by the given angle about the Z axis + * + * @param {quat} out quat receiving operation result + * @param {quat} a quat to rotate + * @param {number} rad angle (in radians) to rotate + * @returns {quat} out + */ +function rotateZ(out, a, rad) { + rad *= 0.5; + + let ax = a[0], ay = a[1], az = a[2], aw = a[3]; + let bz = Math.sin(rad), bw = Math.cos(rad); + + out[0] = ax * bw + ay * bz; + out[1] = ay * bw - ax * bz; + out[2] = az * bw + aw * bz; + out[3] = aw * bw - az * bz; + return out; +} + +/** + * Calculates the W component of a quat from the X, Y, and Z components. + * Assumes that quaternion is 1 unit in length. + * Any existing W component will be ignored. + * + * @param {quat} out the receiving quaternion + * @param {quat} a quat to calculate W component of + * @returns {quat} out + */ +function calculateW(out, a) { + let x = a[0], y = a[1], z = a[2]; + + out[0] = x; + out[1] = y; + out[2] = z; + out[3] = Math.sqrt(Math.abs(1.0 - x * x - y * y - z * z)); + return out; +} + +/** + * Performs a spherical linear interpolation between two quat + * + * @param {quat} out the receiving quaternion + * @param {quat} a the first operand + * @param {quat} b the second operand + * @param {Number} t interpolation amount between the two inputs + * @returns {quat} out + */ +function slerp(out, a, b, t) { + // benchmarks: + // http://jsperf.com/quaternion-slerp-implementations + let ax = a[0], ay = a[1], az = a[2], aw = a[3]; + let bx = b[0], by = b[1], bz = b[2], bw = b[3]; + + let omega, cosom, sinom, scale0, scale1; + + // calc cosine + cosom = ax * bx + ay * by + az * bz + aw * bw; + // adjust signs (if necessary) + if ( cosom < 0.0 ) { + cosom = -cosom; + bx = - bx; + by = - by; + bz = - bz; + bw = - bw; + } + // calculate coefficients + if ( (1.0 - cosom) > 0.000001 ) { + // standard case (slerp) + omega = Math.acos(cosom); + sinom = Math.sin(omega); + scale0 = Math.sin((1.0 - t) * omega) / sinom; + scale1 = Math.sin(t * omega) / sinom; + } else { + // "from" and "to" quaternions are very close + // ... so we can do a linear interpolation + scale0 = 1.0 - t; + scale1 = t; + } + // calculate final values + out[0] = scale0 * ax + scale1 * bx; + out[1] = scale0 * ay + scale1 * by; + out[2] = scale0 * az + scale1 * bz; + out[3] = scale0 * aw + scale1 * bw; + + return out; +} + +/** + * Calculates the inverse of a quat + * + * @param {quat} out the receiving quaternion + * @param {quat} a quat to calculate inverse of + * @returns {quat} out + */ +function invert(out, a) { + let a0 = a[0], a1 = a[1], a2 = a[2], a3 = a[3]; + let dot = a0*a0 + a1*a1 + a2*a2 + a3*a3; + let invDot = dot ? 1.0/dot : 0; + + // TODO: Would be faster to return [0,0,0,0] immediately if dot == 0 + + out[0] = -a0*invDot; + out[1] = -a1*invDot; + out[2] = -a2*invDot; + out[3] = a3*invDot; + return out; +} + +/** + * Calculates the conjugate of a quat + * If the quaternion is normalized, this function is faster than quat.inverse and produces the same result. + * + * @param {quat} out the receiving quaternion + * @param {quat} a quat to calculate conjugate of + * @returns {quat} out + */ +function conjugate(out, a) { + out[0] = -a[0]; + out[1] = -a[1]; + out[2] = -a[2]; + out[3] = a[3]; + return out; +} + +/** + * Creates a quaternion from the given 3x3 rotation matrix. + * + * NOTE: The resultant quaternion is not normalized, so you should be sure + * to renormalize the quaternion yourself where necessary. + * + * @param {quat} out the receiving quaternion + * @param {mat3} m rotation matrix + * @returns {quat} out + * @function + */ +function fromMat3(out, m) { + // Algorithm in Ken Shoemake's article in 1987 SIGGRAPH course notes + // article "Quaternion Calculus and Fast Animation". + let fTrace = m[0] + m[4] + m[8]; + let fRoot; + + if ( fTrace > 0.0 ) { + // |w| > 1/2, may as well choose w > 1/2 + fRoot = Math.sqrt(fTrace + 1.0); // 2w + out[3] = 0.5 * fRoot; + fRoot = 0.5/fRoot; // 1/(4w) + out[0] = (m[5]-m[7])*fRoot; + out[1] = (m[6]-m[2])*fRoot; + out[2] = (m[1]-m[3])*fRoot; + } else { + // |w| <= 1/2 + let i = 0; + if ( m[4] > m[0] ) + i = 1; + if ( m[8] > m[i*3+i] ) + i = 2; + let j = (i+1)%3; + let k = (i+2)%3; + + fRoot = Math.sqrt(m[i*3+i]-m[j*3+j]-m[k*3+k] + 1.0); + out[i] = 0.5 * fRoot; + fRoot = 0.5 / fRoot; + out[3] = (m[j*3+k] - m[k*3+j]) * fRoot; + out[j] = (m[j*3+i] + m[i*3+j]) * fRoot; + out[k] = (m[k*3+i] + m[i*3+k]) * fRoot; + } + + return out; +} + +/** + * Creates a quaternion from the given euler angle x, y, z. + * + * @param {quat} out the receiving quaternion + * @param {x} Angle to rotate around X axis in degrees. + * @param {y} Angle to rotate around Y axis in degrees. + * @param {z} Angle to rotate around Z axis in degrees. + * @returns {quat} out + * @function + */ +function fromEuler(out, x, y, z) { + let halfToRad = 0.5 * Math.PI / 180.0; + x *= halfToRad; + y *= halfToRad; + z *= halfToRad; + + let sx = Math.sin(x); + let cx = Math.cos(x); + let sy = Math.sin(y); + let cy = Math.cos(y); + let sz = Math.sin(z); + let cz = Math.cos(z); + + out[0] = sx * cy * cz - cx * sy * sz; + out[1] = cx * sy * cz + sx * cy * sz; + out[2] = cx * cy * sz - sx * sy * cz; + out[3] = cx * cy * cz + sx * sy * sz; + + return out; +} + +/** + * Returns a string representation of a quatenion + * + * @param {quat} a vector to represent as a string + * @returns {String} string representation of the vector + */ +function str(a) { + return 'quat(' + a[0] + ', ' + a[1] + ', ' + a[2] + ', ' + a[3] + ')'; +} + +/** + * Creates a new quat initialized with values from an existing quaternion + * + * @param {quat} a quaternion to clone + * @returns {quat} a new quaternion + * @function + */ +const clone = __WEBPACK_IMPORTED_MODULE_3__vec4__["clone"]; +/* unused harmony export clone */ + + +/** + * Creates a new quat initialized with the given values + * + * @param {Number} x X component + * @param {Number} y Y component + * @param {Number} z Z component + * @param {Number} w W component + * @returns {quat} a new quaternion + * @function + */ +const fromValues = __WEBPACK_IMPORTED_MODULE_3__vec4__["fromValues"]; +/* unused harmony export fromValues */ + + +/** + * Copy the values from one quat to another + * + * @param {quat} out the receiving quaternion + * @param {quat} a the source quaternion + * @returns {quat} out + * @function + */ +const copy = __WEBPACK_IMPORTED_MODULE_3__vec4__["copy"]; +/* unused harmony export copy */ + + +/** + * Set the components of a quat to the given values + * + * @param {quat} out the receiving quaternion + * @param {Number} x X component + * @param {Number} y Y component + * @param {Number} z Z component + * @param {Number} w W component + * @returns {quat} out + * @function + */ +const set = __WEBPACK_IMPORTED_MODULE_3__vec4__["set"]; +/* unused harmony export set */ + + +/** + * Adds two quat's + * + * @param {quat} out the receiving quaternion + * @param {quat} a the first operand + * @param {quat} b the second operand + * @returns {quat} out + * @function + */ +const add = __WEBPACK_IMPORTED_MODULE_3__vec4__["add"]; +/* unused harmony export add */ + + +/** + * Alias for {@link quat.multiply} + * @function + */ +const mul = multiply; +/* unused harmony export mul */ + + +/** + * Scales a quat by a scalar number + * + * @param {quat} out the receiving vector + * @param {quat} a the vector to scale + * @param {Number} b amount to scale the vector by + * @returns {quat} out + * @function + */ +const scale = __WEBPACK_IMPORTED_MODULE_3__vec4__["scale"]; +/* unused harmony export scale */ + + +/** + * Calculates the dot product of two quat's + * + * @param {quat} a the first operand + * @param {quat} b the second operand + * @returns {Number} dot product of a and b + * @function + */ +const dot = __WEBPACK_IMPORTED_MODULE_3__vec4__["dot"]; +/* unused harmony export dot */ + + +/** + * Performs a linear interpolation between two quat's + * + * @param {quat} out the receiving quaternion + * @param {quat} a the first operand + * @param {quat} b the second operand + * @param {Number} t interpolation amount between the two inputs + * @returns {quat} out + * @function + */ +const lerp = __WEBPACK_IMPORTED_MODULE_3__vec4__["lerp"]; +/* unused harmony export lerp */ + + +/** + * Calculates the length of a quat + * + * @param {quat} a vector to calculate length of + * @returns {Number} length of a + */ +const length = __WEBPACK_IMPORTED_MODULE_3__vec4__["length"]; +/* unused harmony export length */ + + +/** + * Alias for {@link quat.length} + * @function + */ +const len = length; +/* unused harmony export len */ + + +/** + * Calculates the squared length of a quat + * + * @param {quat} a vector to calculate squared length of + * @returns {Number} squared length of a + * @function + */ +const squaredLength = __WEBPACK_IMPORTED_MODULE_3__vec4__["squaredLength"]; +/* unused harmony export squaredLength */ + + +/** + * Alias for {@link quat.squaredLength} + * @function + */ +const sqrLen = squaredLength; +/* unused harmony export sqrLen */ + + +/** + * Normalize a quat + * + * @param {quat} out the receiving quaternion + * @param {quat} a quaternion to normalize + * @returns {quat} out + * @function + */ +const normalize = __WEBPACK_IMPORTED_MODULE_3__vec4__["normalize"]; +/* unused harmony export normalize */ + + +/** + * Returns whether or not the quaternions have exactly the same elements in the same position (when compared with ===) + * + * @param {quat} a The first quaternion. + * @param {quat} b The second quaternion. + * @returns {Boolean} True if the vectors are equal, false otherwise. + */ +const exactEquals = __WEBPACK_IMPORTED_MODULE_3__vec4__["exactEquals"]; +/* unused harmony export exactEquals */ + + +/** + * Returns whether or not the quaternions have approximately the same elements in the same position. + * + * @param {quat} a The first vector. + * @param {quat} b The second vector. + * @returns {Boolean} True if the vectors are equal, false otherwise. + */ +const equals = __WEBPACK_IMPORTED_MODULE_3__vec4__["equals"]; +/* unused harmony export equals */ + + +/** + * Sets a quaternion to represent the shortest rotation from one + * vector to another. + * + * Both vectors are assumed to be unit length. + * + * @param {quat} out the receiving quaternion. + * @param {vec3} a the initial vector + * @param {vec3} b the destination vector + * @returns {quat} out + */ +const rotationTo = (function() { + let tmpvec3 = __WEBPACK_IMPORTED_MODULE_2__vec3__["create"](); + let xUnitVec3 = __WEBPACK_IMPORTED_MODULE_2__vec3__["fromValues"](1,0,0); + let yUnitVec3 = __WEBPACK_IMPORTED_MODULE_2__vec3__["fromValues"](0,1,0); + + return function(out, a, b) { + let dot = __WEBPACK_IMPORTED_MODULE_2__vec3__["dot"](a, b); + if (dot < -0.999999) { + __WEBPACK_IMPORTED_MODULE_2__vec3__["cross"](tmpvec3, xUnitVec3, a); + if (__WEBPACK_IMPORTED_MODULE_2__vec3__["len"](tmpvec3) < 0.000001) + __WEBPACK_IMPORTED_MODULE_2__vec3__["cross"](tmpvec3, yUnitVec3, a); + __WEBPACK_IMPORTED_MODULE_2__vec3__["normalize"](tmpvec3, tmpvec3); + setAxisAngle(out, tmpvec3, Math.PI); + return out; + } else if (dot > 0.999999) { + out[0] = 0; + out[1] = 0; + out[2] = 0; + out[3] = 1; + return out; + } else { + __WEBPACK_IMPORTED_MODULE_2__vec3__["cross"](tmpvec3, a, b); + out[0] = tmpvec3[0]; + out[1] = tmpvec3[1]; + out[2] = tmpvec3[2]; + out[3] = 1 + dot; + return normalize(out, out); + } + }; +})(); +/* unused harmony export rotationTo */ + + +/** + * Performs a spherical linear interpolation with two control points + * + * @param {quat} out the receiving quaternion + * @param {quat} a the first operand + * @param {quat} b the second operand + * @param {quat} c the third operand + * @param {quat} d the fourth operand + * @param {Number} t interpolation amount + * @returns {quat} out + */ +const sqlerp = (function () { + let temp1 = create(); + let temp2 = create(); + + return function (out, a, b, c, d, t) { + slerp(temp1, a, d, t); + slerp(temp2, b, c, t); + slerp(out, temp1, temp2, 2 * t * (1 - t)); + + return out; + }; +}()); +/* unused harmony export sqlerp */ + + +/** + * Sets the specified quaternion with values corresponding to the given + * axes. Each axis is a vec3 and is expected to be unit length and + * perpendicular to all other specified axes. + * + * @param {vec3} view the vector representing the viewing direction + * @param {vec3} right the vector representing the local "right" direction + * @param {vec3} up the vector representing the local "up" direction + * @returns {quat} out + */ +const setAxes = (function() { + let matr = __WEBPACK_IMPORTED_MODULE_1__mat3__["a" /* create */](); + + return function(out, view, right, up) { + matr[0] = right[0]; + matr[3] = right[1]; + matr[6] = right[2]; + + matr[1] = up[0]; + matr[4] = up[1]; + matr[7] = up[2]; + + matr[2] = -view[0]; + matr[5] = -view[1]; + matr[8] = -view[2]; + + return normalize(out, fromMat3(out, matr)); + }; +})(); +/* unused harmony export setAxes */ + + + +/***/ }), +/* 24 */ +/***/ (function(module, __webpack_exports__, __webpack_require__) { + +"use strict"; +/* unused harmony export create */ +/* unused harmony export clone */ +/* unused harmony export fromValues */ +/* unused harmony export copy */ +/* unused harmony export set */ +/* unused harmony export add */ +/* unused harmony export subtract */ +/* unused harmony export multiply */ +/* unused harmony export divide */ +/* unused harmony export ceil */ +/* unused harmony export floor */ +/* unused harmony export min */ +/* unused harmony export max */ +/* unused harmony export round */ +/* unused harmony export scale */ +/* unused harmony export scaleAndAdd */ +/* unused harmony export distance */ +/* unused harmony export squaredDistance */ +/* unused harmony export length */ +/* unused harmony export squaredLength */ +/* unused harmony export negate */ +/* unused harmony export inverse */ +/* unused harmony export normalize */ +/* unused harmony export dot */ +/* unused harmony export cross */ +/* unused harmony export lerp */ +/* unused harmony export random */ +/* unused harmony export transformMat2 */ +/* unused harmony export transformMat2d */ +/* unused harmony export transformMat3 */ +/* unused harmony export transformMat4 */ +/* unused harmony export str */ +/* unused harmony export exactEquals */ +/* unused harmony export equals */ +/* harmony import */ var __WEBPACK_IMPORTED_MODULE_0__common__ = __webpack_require__(0); +/* Copyright (c) 2015, Brandon Jones, Colin MacKenzie IV. + +Permission is hereby granted, free of charge, to any person obtaining a copy +of this software and associated documentation files (the "Software"), to deal +in the Software without restriction, including without limitation the rights +to use, copy, modify, merge, publish, distribute, sublicense, and/or sell +copies of the Software, and to permit persons to whom the Software is +furnished to do so, subject to the following conditions: + +The above copyright notice and this permission notice shall be included in +all copies or substantial portions of the Software. + +THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR +IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, +FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE +AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER +LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, +OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN +THE SOFTWARE. */ + + + +/** + * 2 Dimensional Vector + * @module vec2 + */ + +/** + * Creates a new, empty vec2 + * + * @returns {vec2} a new 2D vector + */ +function create() { + let out = new __WEBPACK_IMPORTED_MODULE_0__common__["a" /* ARRAY_TYPE */](2); + out[0] = 0; + out[1] = 0; + return out; +} + +/** + * Creates a new vec2 initialized with values from an existing vector + * + * @param {vec2} a vector to clone + * @returns {vec2} a new 2D vector + */ +function clone(a) { + let out = new __WEBPACK_IMPORTED_MODULE_0__common__["a" /* ARRAY_TYPE */](2); + out[0] = a[0]; + out[1] = a[1]; + return out; +} + +/** + * Creates a new vec2 initialized with the given values + * + * @param {Number} x X component + * @param {Number} y Y component + * @returns {vec2} a new 2D vector + */ +function fromValues(x, y) { + let out = new __WEBPACK_IMPORTED_MODULE_0__common__["a" /* ARRAY_TYPE */](2); + out[0] = x; + out[1] = y; + return out; +} + +/** + * Copy the values from one vec2 to another + * + * @param {vec2} out the receiving vector + * @param {vec2} a the source vector + * @returns {vec2} out + */ +function copy(out, a) { + out[0] = a[0]; + out[1] = a[1]; + return out; +} + +/** + * Set the components of a vec2 to the given values + * + * @param {vec2} out the receiving vector + * @param {Number} x X component + * @param {Number} y Y component + * @returns {vec2} out + */ +function set(out, x, y) { + out[0] = x; + out[1] = y; + return out; +} + +/** + * Adds two vec2's + * + * @param {vec2} out the receiving vector + * @param {vec2} a the first operand + * @param {vec2} b the second operand + * @returns {vec2} out + */ +function add(out, a, b) { + out[0] = a[0] + b[0]; + out[1] = a[1] + b[1]; + return out; +} + +/** + * Subtracts vector b from vector a + * + * @param {vec2} out the receiving vector + * @param {vec2} a the first operand + * @param {vec2} b the second operand + * @returns {vec2} out + */ +function subtract(out, a, b) { + out[0] = a[0] - b[0]; + out[1] = a[1] - b[1]; + return out; +} + +/** + * Multiplies two vec2's + * + * @param {vec2} out the receiving vector + * @param {vec2} a the first operand + * @param {vec2} b the second operand + * @returns {vec2} out + */ +function multiply(out, a, b) { + out[0] = a[0] * b[0]; + out[1] = a[1] * b[1]; + return out; +}; + +/** + * Divides two vec2's + * + * @param {vec2} out the receiving vector + * @param {vec2} a the first operand + * @param {vec2} b the second operand + * @returns {vec2} out + */ +function divide(out, a, b) { + out[0] = a[0] / b[0]; + out[1] = a[1] / b[1]; + return out; +}; + +/** + * Math.ceil the components of a vec2 + * + * @param {vec2} out the receiving vector + * @param {vec2} a vector to ceil + * @returns {vec2} out + */ +function ceil(out, a) { + out[0] = Math.ceil(a[0]); + out[1] = Math.ceil(a[1]); + return out; +}; + +/** + * Math.floor the components of a vec2 + * + * @param {vec2} out the receiving vector + * @param {vec2} a vector to floor + * @returns {vec2} out + */ +function floor(out, a) { + out[0] = Math.floor(a[0]); + out[1] = Math.floor(a[1]); + return out; +}; + +/** + * Returns the minimum of two vec2's + * + * @param {vec2} out the receiving vector + * @param {vec2} a the first operand + * @param {vec2} b the second operand + * @returns {vec2} out + */ +function min(out, a, b) { + out[0] = Math.min(a[0], b[0]); + out[1] = Math.min(a[1], b[1]); + return out; +}; + +/** + * Returns the maximum of two vec2's + * + * @param {vec2} out the receiving vector + * @param {vec2} a the first operand + * @param {vec2} b the second operand + * @returns {vec2} out + */ +function max(out, a, b) { + out[0] = Math.max(a[0], b[0]); + out[1] = Math.max(a[1], b[1]); + return out; +}; + +/** + * Math.round the components of a vec2 + * + * @param {vec2} out the receiving vector + * @param {vec2} a vector to round + * @returns {vec2} out + */ +function round (out, a) { + out[0] = Math.round(a[0]); + out[1] = Math.round(a[1]); + return out; +}; + +/** + * Scales a vec2 by a scalar number + * + * @param {vec2} out the receiving vector + * @param {vec2} a the vector to scale + * @param {Number} b amount to scale the vector by + * @returns {vec2} out + */ +function scale(out, a, b) { + out[0] = a[0] * b; + out[1] = a[1] * b; + return out; +}; + +/** + * Adds two vec2's after scaling the second operand by a scalar value + * + * @param {vec2} out the receiving vector + * @param {vec2} a the first operand + * @param {vec2} b the second operand + * @param {Number} scale the amount to scale b by before adding + * @returns {vec2} out + */ +function scaleAndAdd(out, a, b, scale) { + out[0] = a[0] + (b[0] * scale); + out[1] = a[1] + (b[1] * scale); + return out; +}; + +/** + * Calculates the euclidian distance between two vec2's + * + * @param {vec2} a the first operand + * @param {vec2} b the second operand + * @returns {Number} distance between a and b + */ +function distance(a, b) { + var x = b[0] - a[0], + y = b[1] - a[1]; + return Math.sqrt(x*x + y*y); +}; + +/** + * Calculates the squared euclidian distance between two vec2's + * + * @param {vec2} a the first operand + * @param {vec2} b the second operand + * @returns {Number} squared distance between a and b + */ +function squaredDistance(a, b) { + var x = b[0] - a[0], + y = b[1] - a[1]; + return x*x + y*y; +}; + +/** + * Calculates the length of a vec2 + * + * @param {vec2} a vector to calculate length of + * @returns {Number} length of a + */ +function length(a) { + var x = a[0], + y = a[1]; + return Math.sqrt(x*x + y*y); +}; + +/** + * Calculates the squared length of a vec2 + * + * @param {vec2} a vector to calculate squared length of + * @returns {Number} squared length of a + */ +function squaredLength (a) { + var x = a[0], + y = a[1]; + return x*x + y*y; +}; + +/** + * Negates the components of a vec2 + * + * @param {vec2} out the receiving vector + * @param {vec2} a vector to negate + * @returns {vec2} out + */ +function negate(out, a) { + out[0] = -a[0]; + out[1] = -a[1]; + return out; +}; + +/** + * Returns the inverse of the components of a vec2 + * + * @param {vec2} out the receiving vector + * @param {vec2} a vector to invert + * @returns {vec2} out + */ +function inverse(out, a) { + out[0] = 1.0 / a[0]; + out[1] = 1.0 / a[1]; + return out; +}; + +/** + * Normalize a vec2 + * + * @param {vec2} out the receiving vector + * @param {vec2} a vector to normalize + * @returns {vec2} out + */ +function normalize(out, a) { + var x = a[0], + y = a[1]; + var len = x*x + y*y; + if (len > 0) { + //TODO: evaluate use of glm_invsqrt here? + len = 1 / Math.sqrt(len); + out[0] = a[0] * len; + out[1] = a[1] * len; + } + return out; +}; + +/** + * Calculates the dot product of two vec2's + * + * @param {vec2} a the first operand + * @param {vec2} b the second operand + * @returns {Number} dot product of a and b + */ +function dot(a, b) { + return a[0] * b[0] + a[1] * b[1]; +}; + +/** + * Computes the cross product of two vec2's + * Note that the cross product must by definition produce a 3D vector + * + * @param {vec3} out the receiving vector + * @param {vec2} a the first operand + * @param {vec2} b the second operand + * @returns {vec3} out + */ +function cross(out, a, b) { + var z = a[0] * b[1] - a[1] * b[0]; + out[0] = out[1] = 0; + out[2] = z; + return out; +}; + +/** + * Performs a linear interpolation between two vec2's + * + * @param {vec2} out the receiving vector + * @param {vec2} a the first operand + * @param {vec2} b the second operand + * @param {Number} t interpolation amount between the two inputs + * @returns {vec2} out + */ +function lerp(out, a, b, t) { + var ax = a[0], + ay = a[1]; + out[0] = ax + t * (b[0] - ax); + out[1] = ay + t * (b[1] - ay); + return out; +}; + +/** + * Generates a random vector with the given scale + * + * @param {vec2} out the receiving vector + * @param {Number} [scale] Length of the resulting vector. If ommitted, a unit vector will be returned + * @returns {vec2} out + */ +function random(out, scale) { + scale = scale || 1.0; + var r = __WEBPACK_IMPORTED_MODULE_0__common__["c" /* RANDOM */]() * 2.0 * Math.PI; + out[0] = Math.cos(r) * scale; + out[1] = Math.sin(r) * scale; + return out; +}; + +/** + * Transforms the vec2 with a mat2 + * + * @param {vec2} out the receiving vector + * @param {vec2} a the vector to transform + * @param {mat2} m matrix to transform with + * @returns {vec2} out + */ +function transformMat2(out, a, m) { + var x = a[0], + y = a[1]; + out[0] = m[0] * x + m[2] * y; + out[1] = m[1] * x + m[3] * y; + return out; +}; + +/** + * Transforms the vec2 with a mat2d + * + * @param {vec2} out the receiving vector + * @param {vec2} a the vector to transform + * @param {mat2d} m matrix to transform with + * @returns {vec2} out + */ +function transformMat2d(out, a, m) { + var x = a[0], + y = a[1]; + out[0] = m[0] * x + m[2] * y + m[4]; + out[1] = m[1] * x + m[3] * y + m[5]; + return out; +}; + +/** + * Transforms the vec2 with a mat3 + * 3rd vector component is implicitly '1' + * + * @param {vec2} out the receiving vector + * @param {vec2} a the vector to transform + * @param {mat3} m matrix to transform with + * @returns {vec2} out + */ +function transformMat3(out, a, m) { + var x = a[0], + y = a[1]; + out[0] = m[0] * x + m[3] * y + m[6]; + out[1] = m[1] * x + m[4] * y + m[7]; + return out; +}; + +/** + * Transforms the vec2 with a mat4 + * 3rd vector component is implicitly '0' + * 4th vector component is implicitly '1' + * + * @param {vec2} out the receiving vector + * @param {vec2} a the vector to transform + * @param {mat4} m matrix to transform with + * @returns {vec2} out + */ +function transformMat4(out, a, m) { + let x = a[0]; + let y = a[1]; + out[0] = m[0] * x + m[4] * y + m[12]; + out[1] = m[1] * x + m[5] * y + m[13]; + return out; +} + +/** + * Returns a string representation of a vector + * + * @param {vec2} a vector to represent as a string + * @returns {String} string representation of the vector + */ +function str(a) { + return 'vec2(' + a[0] + ', ' + a[1] + ')'; +} + +/** + * Returns whether or not the vectors exactly have the same elements in the same position (when compared with ===) + * + * @param {vec2} a The first vector. + * @param {vec2} b The second vector. + * @returns {Boolean} True if the vectors are equal, false otherwise. + */ +function exactEquals(a, b) { + return a[0] === b[0] && a[1] === b[1]; +} + +/** + * Returns whether or not the vectors have approximately the same elements in the same position. + * + * @param {vec2} a The first vector. + * @param {vec2} b The second vector. + * @returns {Boolean} True if the vectors are equal, false otherwise. + */ +function equals(a, b) { + let a0 = a[0], a1 = a[1]; + let b0 = b[0], b1 = b[1]; + return (Math.abs(a0 - b0) <= __WEBPACK_IMPORTED_MODULE_0__common__["b" /* EPSILON */]*Math.max(1.0, Math.abs(a0), Math.abs(b0)) && + Math.abs(a1 - b1) <= __WEBPACK_IMPORTED_MODULE_0__common__["b" /* EPSILON */]*Math.max(1.0, Math.abs(a1), Math.abs(b1))); +} + +/** + * Alias for {@link vec2.length} + * @function + */ +const len = length; +/* unused harmony export len */ + + +/** + * Alias for {@link vec2.subtract} + * @function + */ +const sub = subtract; +/* unused harmony export sub */ + + +/** + * Alias for {@link vec2.multiply} + * @function + */ +const mul = multiply; +/* unused harmony export mul */ + + +/** + * Alias for {@link vec2.divide} + * @function + */ +const div = divide; +/* unused harmony export div */ + + +/** + * Alias for {@link vec2.distance} + * @function + */ +const dist = distance; +/* unused harmony export dist */ + + +/** + * Alias for {@link vec2.squaredDistance} + * @function + */ +const sqrDist = squaredDistance; +/* unused harmony export sqrDist */ + + +/** + * Alias for {@link vec2.squaredLength} + * @function + */ +const sqrLen = squaredLength; +/* unused harmony export sqrLen */ + + +/** + * Perform some operation over an array of vec2s. + * + * @param {Array} a the array of vectors to iterate over + * @param {Number} stride Number of elements between the start of each vec2. If 0 assumes tightly packed + * @param {Number} offset Number of elements to skip at the beginning of the array + * @param {Number} count Number of vec2s to iterate over. If 0 iterates over entire array + * @param {Function} fn Function to call for each vector in the array + * @param {Object} [arg] additional argument to pass to fn + * @returns {Array} a + * @function + */ +const forEach = (function() { + let vec = create(); + + return function(a, stride, offset, count, fn, arg) { + let i, l; + if(!stride) { + stride = 2; + } + + if(!offset) { + offset = 0; + } + + if(count) { + l = Math.min((count * stride) + offset, a.length); + } else { + l = a.length; + } + + for(i = offset; i < l; i += stride) { + vec[0] = a[i]; vec[1] = a[i+1]; + fn(vec, vec, arg); + a[i] = vec[0]; a[i+1] = vec[1]; + } + + return a; + }; +})(); +/* unused harmony export forEach */ + + + +/***/ }), +/* 25 */ +/***/ (function(module, exports) { + +// stats.js - http://github.com/mrdoob/stats.js +var Stats=function(){var l=Date.now(),m=l,g=0,n=Infinity,o=0,h=0,p=Infinity,q=0,r=0,s=0,f=document.createElement("div");f.id="stats";f.addEventListener("mousedown",function(b){b.preventDefault();t(++s%2)},!1);f.style.cssText="width:80px;opacity:0.9;cursor:pointer";var a=document.createElement("div");a.id="fps";a.style.cssText="padding:0 0 3px 3px;text-align:left;background-color:#002";f.appendChild(a);var i=document.createElement("div");i.id="fpsText";i.style.cssText="color:#0ff;font-family:Helvetica,Arial,sans-serif;font-size:9px;font-weight:bold;line-height:15px"; +i.innerHTML="FPS";a.appendChild(i);var c=document.createElement("div");c.id="fpsGraph";c.style.cssText="position:relative;width:74px;height:30px;background-color:#0ff";for(a.appendChild(c);74>c.children.length;){var j=document.createElement("span");j.style.cssText="width:1px;height:30px;float:left;background-color:#113";c.appendChild(j)}var d=document.createElement("div");d.id="ms";d.style.cssText="padding:0 0 3px 3px;text-align:left;background-color:#020;display:none";f.appendChild(d);var k=document.createElement("div"); +k.id="msText";k.style.cssText="color:#0f0;font-family:Helvetica,Arial,sans-serif;font-size:9px;font-weight:bold;line-height:15px";k.innerHTML="MS";d.appendChild(k);var e=document.createElement("div");e.id="msGraph";e.style.cssText="position:relative;width:74px;height:30px;background-color:#0f0";for(d.appendChild(e);74>e.children.length;)j=document.createElement("span"),j.style.cssText="width:1px;height:30px;float:left;background-color:#131",e.appendChild(j);var t=function(b){s=b;switch(s){case 0:a.style.display= +"block";d.style.display="none";break;case 1:a.style.display="none",d.style.display="block"}};return{REVISION:12,domElement:f,setMode:t,begin:function(){l=Date.now()},end:function(){var b=Date.now();g=b-l;n=Math.min(n,g);o=Math.max(o,g);k.textContent=g+" MS ("+n+"-"+o+")";var a=Math.min(30,30-30*(g/200));e.appendChild(e.firstChild).style.height=a+"px";r++;b>m+1E3&&(h=Math.round(1E3*r/(b-m)),p=Math.min(p,h),q=Math.max(q,h),i.textContent=h+" FPS ("+p+"-"+q+")",a=Math.min(30,30-30*(h/100)),c.appendChild(c.firstChild).style.height= +a+"px",m=b,r=0);return b},update:function(){l=this.end()}}};"object"===typeof module&&(module.exports=Stats); + + +/***/ }), +/* 26 */ +/***/ (function(module, exports, __webpack_require__) { + +module.exports = __webpack_require__(27) +module.exports.color = __webpack_require__(28) + +/***/ }), +/* 27 */ +/***/ (function(module, exports) { + +/** + * dat-gui JavaScript Controller Library + * http://code.google.com/p/dat-gui + * + * Copyright 2011 Data Arts Team, Google Creative Lab + * + * Licensed under the Apache License, Version 2.0 (the "License"); + * you may not use this file except in compliance with the License. + * You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + */ + +/** @namespace */ +var dat = module.exports = dat || {}; + +/** @namespace */ +dat.gui = dat.gui || {}; + +/** @namespace */ +dat.utils = dat.utils || {}; + +/** @namespace */ +dat.controllers = dat.controllers || {}; + +/** @namespace */ +dat.dom = dat.dom || {}; + +/** @namespace */ +dat.color = dat.color || {}; + +dat.utils.css = (function () { + return { + load: function (url, doc) { + doc = doc || document; + var link = doc.createElement('link'); + link.type = 'text/css'; + link.rel = 'stylesheet'; + link.href = url; + doc.getElementsByTagName('head')[0].appendChild(link); + }, + inject: function(css, doc) { + doc = doc || document; + var injected = document.createElement('style'); + injected.type = 'text/css'; + injected.innerHTML = css; + doc.getElementsByTagName('head')[0].appendChild(injected); + } + } +})(); + + +dat.utils.common = (function () { + + var ARR_EACH = Array.prototype.forEach; + var ARR_SLICE = Array.prototype.slice; + + /** + * Band-aid methods for things that should be a lot easier in JavaScript. + * Implementation and structure inspired by underscore.js + * http://documentcloud.github.com/underscore/ + */ + + return { + + BREAK: {}, + + extend: function(target) { + + this.each(ARR_SLICE.call(arguments, 1), function(obj) { + + for (var key in obj) + if (!this.isUndefined(obj[key])) + target[key] = obj[key]; + + }, this); + + return target; + + }, + + defaults: function(target) { + + this.each(ARR_SLICE.call(arguments, 1), function(obj) { + + for (var key in obj) + if (this.isUndefined(target[key])) + target[key] = obj[key]; + + }, this); + + return target; + + }, + + compose: function() { + var toCall = ARR_SLICE.call(arguments); + return function() { + var args = ARR_SLICE.call(arguments); + for (var i = toCall.length -1; i >= 0; i--) { + args = [toCall[i].apply(this, args)]; + } + return args[0]; + } + }, + + each: function(obj, itr, scope) { + + + if (ARR_EACH && obj.forEach === ARR_EACH) { + + obj.forEach(itr, scope); + + } else if (obj.length === obj.length + 0) { // Is number but not NaN + + for (var key = 0, l = obj.length; key < l; key++) + if (key in obj && itr.call(scope, obj[key], key) === this.BREAK) + return; + + } else { + + for (var key in obj) + if (itr.call(scope, obj[key], key) === this.BREAK) + return; + + } + + }, + + defer: function(fnc) { + setTimeout(fnc, 0); + }, + + toArray: function(obj) { + if (obj.toArray) return obj.toArray(); + return ARR_SLICE.call(obj); + }, + + isUndefined: function(obj) { + return obj === undefined; + }, + + isNull: function(obj) { + return obj === null; + }, + + isNaN: function(obj) { + return obj !== obj; + }, + + isArray: Array.isArray || function(obj) { + return obj.constructor === Array; + }, + + isObject: function(obj) { + return obj === Object(obj); + }, + + isNumber: function(obj) { + return obj === obj+0; + }, + + isString: function(obj) { + return obj === obj+''; + }, + + isBoolean: function(obj) { + return obj === false || obj === true; + }, + + isFunction: function(obj) { + return Object.prototype.toString.call(obj) === '[object Function]'; + } + + }; + +})(); + + +dat.controllers.Controller = (function (common) { + + /** + * @class An "abstract" class that represents a given property of an object. + * + * @param {Object} object The object to be manipulated + * @param {string} property The name of the property to be manipulated + * + * @member dat.controllers + */ + var Controller = function(object, property) { + + this.initialValue = object[property]; + + /** + * Those who extend this class will put their DOM elements in here. + * @type {DOMElement} + */ + this.domElement = document.createElement('div'); + + /** + * The object to manipulate + * @type {Object} + */ + this.object = object; + + /** + * The name of the property to manipulate + * @type {String} + */ + this.property = property; + + /** + * The function to be called on change. + * @type {Function} + * @ignore + */ + this.__onChange = undefined; + + /** + * The function to be called on finishing change. + * @type {Function} + * @ignore + */ + this.__onFinishChange = undefined; + + }; + + common.extend( + + Controller.prototype, + + /** @lends dat.controllers.Controller.prototype */ + { + + /** + * Specify that a function fire every time someone changes the value with + * this Controller. + * + * @param {Function} fnc This function will be called whenever the value + * is modified via this Controller. + * @returns {dat.controllers.Controller} this + */ + onChange: function(fnc) { + this.__onChange = fnc; + return this; + }, + + /** + * Specify that a function fire every time someone "finishes" changing + * the value wih this Controller. Useful for values that change + * incrementally like numbers or strings. + * + * @param {Function} fnc This function will be called whenever + * someone "finishes" changing the value via this Controller. + * @returns {dat.controllers.Controller} this + */ + onFinishChange: function(fnc) { + this.__onFinishChange = fnc; + return this; + }, + + /** + * Change the value of object[property] + * + * @param {Object} newValue The new value of object[property] + */ + setValue: function(newValue) { + this.object[this.property] = newValue; + if (this.__onChange) { + this.__onChange.call(this, newValue); + } + this.updateDisplay(); + return this; + }, + + /** + * Gets the value of object[property] + * + * @returns {Object} The current value of object[property] + */ + getValue: function() { + return this.object[this.property]; + }, + + /** + * Refreshes the visual display of a Controller in order to keep sync + * with the object's current value. + * @returns {dat.controllers.Controller} this + */ + updateDisplay: function() { + return this; + }, + + /** + * @returns {Boolean} true if the value has deviated from initialValue + */ + isModified: function() { + return this.initialValue !== this.getValue() + } + + } + + ); + + return Controller; + + +})(dat.utils.common); + + +dat.dom.dom = (function (common) { + + var EVENT_MAP = { + 'HTMLEvents': ['change'], + 'MouseEvents': ['click','mousemove','mousedown','mouseup', 'mouseover'], + 'KeyboardEvents': ['keydown'] + }; + + var EVENT_MAP_INV = {}; + common.each(EVENT_MAP, function(v, k) { + common.each(v, function(e) { + EVENT_MAP_INV[e] = k; + }); + }); + + var CSS_VALUE_PIXELS = /(\d+(\.\d+)?)px/; + + function cssValueToPixels(val) { + + if (val === '0' || common.isUndefined(val)) return 0; + + var match = val.match(CSS_VALUE_PIXELS); + + if (!common.isNull(match)) { + return parseFloat(match[1]); + } + + // TODO ...ems? %? + + return 0; + + } + + /** + * @namespace + * @member dat.dom + */ + var dom = { + + /** + * + * @param elem + * @param selectable + */ + makeSelectable: function(elem, selectable) { + + if (elem === undefined || elem.style === undefined) return; + + elem.onselectstart = selectable ? function() { + return false; + } : function() { + }; + + elem.style.MozUserSelect = selectable ? 'auto' : 'none'; + elem.style.KhtmlUserSelect = selectable ? 'auto' : 'none'; + elem.unselectable = selectable ? 'on' : 'off'; + + }, + + /** + * + * @param elem + * @param horizontal + * @param vertical + */ + makeFullscreen: function(elem, horizontal, vertical) { + + if (common.isUndefined(horizontal)) horizontal = true; + if (common.isUndefined(vertical)) vertical = true; + + elem.style.position = 'absolute'; + + if (horizontal) { + elem.style.left = 0; + elem.style.right = 0; + } + if (vertical) { + elem.style.top = 0; + elem.style.bottom = 0; + } + + }, + + /** + * + * @param elem + * @param eventType + * @param params + */ + fakeEvent: function(elem, eventType, params, aux) { + params = params || {}; + var className = EVENT_MAP_INV[eventType]; + if (!className) { + throw new Error('Event type ' + eventType + ' not supported.'); + } + var evt = document.createEvent(className); + switch (className) { + case 'MouseEvents': + var clientX = params.x || params.clientX || 0; + var clientY = params.y || params.clientY || 0; + evt.initMouseEvent(eventType, params.bubbles || false, + params.cancelable || true, window, params.clickCount || 1, + 0, //screen X + 0, //screen Y + clientX, //client X + clientY, //client Y + false, false, false, false, 0, null); + break; + case 'KeyboardEvents': + var init = evt.initKeyboardEvent || evt.initKeyEvent; // webkit || moz + common.defaults(params, { + cancelable: true, + ctrlKey: false, + altKey: false, + shiftKey: false, + metaKey: false, + keyCode: undefined, + charCode: undefined + }); + init(eventType, params.bubbles || false, + params.cancelable, window, + params.ctrlKey, params.altKey, + params.shiftKey, params.metaKey, + params.keyCode, params.charCode); + break; + default: + evt.initEvent(eventType, params.bubbles || false, + params.cancelable || true); + break; + } + common.defaults(evt, aux); + elem.dispatchEvent(evt); + }, + + /** + * + * @param elem + * @param event + * @param func + * @param bool + */ + bind: function(elem, event, func, bool) { + bool = bool || false; + if (elem.addEventListener) + elem.addEventListener(event, func, bool); + else if (elem.attachEvent) + elem.attachEvent('on' + event, func); + return dom; + }, + + /** + * + * @param elem + * @param event + * @param func + * @param bool + */ + unbind: function(elem, event, func, bool) { + bool = bool || false; + if (elem.removeEventListener) + elem.removeEventListener(event, func, bool); + else if (elem.detachEvent) + elem.detachEvent('on' + event, func); + return dom; + }, + + /** + * + * @param elem + * @param className + */ + addClass: function(elem, className) { + if (elem.className === undefined) { + elem.className = className; + } else if (elem.className !== className) { + var classes = elem.className.split(/ +/); + if (classes.indexOf(className) == -1) { + classes.push(className); + elem.className = classes.join(' ').replace(/^\s+/, '').replace(/\s+$/, ''); + } + } + return dom; + }, + + /** + * + * @param elem + * @param className + */ + removeClass: function(elem, className) { + if (className) { + if (elem.className === undefined) { + // elem.className = className; + } else if (elem.className === className) { + elem.removeAttribute('class'); + } else { + var classes = elem.className.split(/ +/); + var index = classes.indexOf(className); + if (index != -1) { + classes.splice(index, 1); + elem.className = classes.join(' '); + } + } + } else { + elem.className = undefined; + } + return dom; + }, + + hasClass: function(elem, className) { + return new RegExp('(?:^|\\s+)' + className + '(?:\\s+|$)').test(elem.className) || false; + }, + + /** + * + * @param elem + */ + getWidth: function(elem) { + + var style = getComputedStyle(elem); + + return cssValueToPixels(style['border-left-width']) + + cssValueToPixels(style['border-right-width']) + + cssValueToPixels(style['padding-left']) + + cssValueToPixels(style['padding-right']) + + cssValueToPixels(style['width']); + }, + + /** + * + * @param elem + */ + getHeight: function(elem) { + + var style = getComputedStyle(elem); + + return cssValueToPixels(style['border-top-width']) + + cssValueToPixels(style['border-bottom-width']) + + cssValueToPixels(style['padding-top']) + + cssValueToPixels(style['padding-bottom']) + + cssValueToPixels(style['height']); + }, + + /** + * + * @param elem + */ + getOffset: function(elem) { + var offset = {left: 0, top:0}; + if (elem.offsetParent) { + do { + offset.left += elem.offsetLeft; + offset.top += elem.offsetTop; + } while (elem = elem.offsetParent); + } + return offset; + }, + + // http://stackoverflow.com/posts/2684561/revisions + /** + * + * @param elem + */ + isActive: function(elem) { + return elem === document.activeElement && ( elem.type || elem.href ); + } + + }; + + return dom; + +})(dat.utils.common); + + +dat.controllers.OptionController = (function (Controller, dom, common) { + + /** + * @class Provides a select input to alter the property of an object, using a + * list of accepted values. + * + * @extends dat.controllers.Controller + * + * @param {Object} object The object to be manipulated + * @param {string} property The name of the property to be manipulated + * @param {Object|string[]} options A map of labels to acceptable values, or + * a list of acceptable string values. + * + * @member dat.controllers + */ + var OptionController = function(object, property, options) { + + OptionController.superclass.call(this, object, property); + + var _this = this; + + /** + * The drop down menu + * @ignore + */ + this.__select = document.createElement('select'); + + if (common.isArray(options)) { + var map = {}; + common.each(options, function(element) { + map[element] = element; + }); + options = map; + } + + common.each(options, function(value, key) { + + var opt = document.createElement('option'); + opt.innerHTML = key; + opt.setAttribute('value', value); + _this.__select.appendChild(opt); + + }); + + // Acknowledge original value + this.updateDisplay(); + + dom.bind(this.__select, 'change', function() { + var desiredValue = this.options[this.selectedIndex].value; + _this.setValue(desiredValue); + }); + + this.domElement.appendChild(this.__select); + + }; + + OptionController.superclass = Controller; + + common.extend( + + OptionController.prototype, + Controller.prototype, + + { + + setValue: function(v) { + var toReturn = OptionController.superclass.prototype.setValue.call(this, v); + if (this.__onFinishChange) { + this.__onFinishChange.call(this, this.getValue()); + } + return toReturn; + }, + + updateDisplay: function() { + this.__select.value = this.getValue(); + return OptionController.superclass.prototype.updateDisplay.call(this); + } + + } + + ); + + return OptionController; + +})(dat.controllers.Controller, +dat.dom.dom, +dat.utils.common); + + +dat.controllers.NumberController = (function (Controller, common) { + + /** + * @class Represents a given property of an object that is a number. + * + * @extends dat.controllers.Controller + * + * @param {Object} object The object to be manipulated + * @param {string} property The name of the property to be manipulated + * @param {Object} [params] Optional parameters + * @param {Number} [params.min] Minimum allowed value + * @param {Number} [params.max] Maximum allowed value + * @param {Number} [params.step] Increment by which to change value + * + * @member dat.controllers + */ + var NumberController = function(object, property, params) { + + NumberController.superclass.call(this, object, property); + + params = params || {}; + + this.__min = params.min; + this.__max = params.max; + this.__step = params.step; + + if (common.isUndefined(this.__step)) { + + if (this.initialValue == 0) { + this.__impliedStep = 1; // What are we, psychics? + } else { + // Hey Doug, check this out. + this.__impliedStep = Math.pow(10, Math.floor(Math.log(this.initialValue)/Math.LN10))/10; + } + + } else { + + this.__impliedStep = this.__step; + + } + + this.__precision = numDecimals(this.__impliedStep); + + + }; + + NumberController.superclass = Controller; + + common.extend( + + NumberController.prototype, + Controller.prototype, + + /** @lends dat.controllers.NumberController.prototype */ + { + + setValue: function(v) { + + if (this.__min !== undefined && v < this.__min) { + v = this.__min; + } else if (this.__max !== undefined && v > this.__max) { + v = this.__max; + } + + if (this.__step !== undefined && v % this.__step != 0) { + v = Math.round(v / this.__step) * this.__step; + } + + return NumberController.superclass.prototype.setValue.call(this, v); + + }, + + /** + * Specify a minimum value for object[property]. + * + * @param {Number} minValue The minimum value for + * object[property] + * @returns {dat.controllers.NumberController} this + */ + min: function(v) { + this.__min = v; + return this; + }, + + /** + * Specify a maximum value for object[property]. + * + * @param {Number} maxValue The maximum value for + * object[property] + * @returns {dat.controllers.NumberController} this + */ + max: function(v) { + this.__max = v; + return this; + }, + + /** + * Specify a step value that dat.controllers.NumberController + * increments by. + * + * @param {Number} stepValue The step value for + * dat.controllers.NumberController + * @default if minimum and maximum specified increment is 1% of the + * difference otherwise stepValue is 1 + * @returns {dat.controllers.NumberController} this + */ + step: function(v) { + this.__step = v; + return this; + } + + } + + ); + + function numDecimals(x) { + x = x.toString(); + if (x.indexOf('.') > -1) { + return x.length - x.indexOf('.') - 1; + } else { + return 0; + } + } + + return NumberController; + +})(dat.controllers.Controller, +dat.utils.common); + + +dat.controllers.NumberControllerBox = (function (NumberController, dom, common) { + + /** + * @class Represents a given property of an object that is a number and + * provides an input element with which to manipulate it. + * + * @extends dat.controllers.Controller + * @extends dat.controllers.NumberController + * + * @param {Object} object The object to be manipulated + * @param {string} property The name of the property to be manipulated + * @param {Object} [params] Optional parameters + * @param {Number} [params.min] Minimum allowed value + * @param {Number} [params.max] Maximum allowed value + * @param {Number} [params.step] Increment by which to change value + * + * @member dat.controllers + */ + var NumberControllerBox = function(object, property, params) { + + this.__truncationSuspended = false; + + NumberControllerBox.superclass.call(this, object, property, params); + + var _this = this; + + /** + * {Number} Previous mouse y position + * @ignore + */ + var prev_y; + + this.__input = document.createElement('input'); + this.__input.setAttribute('type', 'text'); + + // Makes it so manually specified values are not truncated. + + dom.bind(this.__input, 'change', onChange); + dom.bind(this.__input, 'blur', onBlur); + dom.bind(this.__input, 'mousedown', onMouseDown); + dom.bind(this.__input, 'keydown', function(e) { + + // When pressing entire, you can be as precise as you want. + if (e.keyCode === 13) { + _this.__truncationSuspended = true; + this.blur(); + _this.__truncationSuspended = false; + } + + }); + + function onChange() { + var attempted = parseFloat(_this.__input.value); + if (!common.isNaN(attempted)) _this.setValue(attempted); + } + + function onBlur() { + onChange(); + if (_this.__onFinishChange) { + _this.__onFinishChange.call(_this, _this.getValue()); + } + } + + function onMouseDown(e) { + dom.bind(window, 'mousemove', onMouseDrag); + dom.bind(window, 'mouseup', onMouseUp); + prev_y = e.clientY; + } + + function onMouseDrag(e) { + + var diff = prev_y - e.clientY; + _this.setValue(_this.getValue() + diff * _this.__impliedStep); + + prev_y = e.clientY; + + } + + function onMouseUp() { + dom.unbind(window, 'mousemove', onMouseDrag); + dom.unbind(window, 'mouseup', onMouseUp); + } + + this.updateDisplay(); + + this.domElement.appendChild(this.__input); + + }; + + NumberControllerBox.superclass = NumberController; + + common.extend( + + NumberControllerBox.prototype, + NumberController.prototype, + + { + + updateDisplay: function() { + + this.__input.value = this.__truncationSuspended ? this.getValue() : roundToDecimal(this.getValue(), this.__precision); + return NumberControllerBox.superclass.prototype.updateDisplay.call(this); + } + + } + + ); + + function roundToDecimal(value, decimals) { + var tenTo = Math.pow(10, decimals); + return Math.round(value * tenTo) / tenTo; + } + + return NumberControllerBox; + +})(dat.controllers.NumberController, +dat.dom.dom, +dat.utils.common); + + +dat.controllers.NumberControllerSlider = (function (NumberController, dom, css, common, styleSheet) { + + /** + * @class Represents a given property of an object that is a number, contains + * a minimum and maximum, and provides a slider element with which to + * manipulate it. It should be noted that the slider element is made up of + * <div> tags, not the html5 + * <slider> element. + * + * @extends dat.controllers.Controller + * @extends dat.controllers.NumberController + * + * @param {Object} object The object to be manipulated + * @param {string} property The name of the property to be manipulated + * @param {Number} minValue Minimum allowed value + * @param {Number} maxValue Maximum allowed value + * @param {Number} stepValue Increment by which to change value + * + * @member dat.controllers + */ + var NumberControllerSlider = function(object, property, min, max, step) { + + NumberControllerSlider.superclass.call(this, object, property, { min: min, max: max, step: step }); + + var _this = this; + + this.__background = document.createElement('div'); + this.__foreground = document.createElement('div'); + + + + dom.bind(this.__background, 'mousedown', onMouseDown); + + dom.addClass(this.__background, 'slider'); + dom.addClass(this.__foreground, 'slider-fg'); + + function onMouseDown(e) { + + dom.bind(window, 'mousemove', onMouseDrag); + dom.bind(window, 'mouseup', onMouseUp); + + onMouseDrag(e); + } + + function onMouseDrag(e) { + + e.preventDefault(); + + var offset = dom.getOffset(_this.__background); + var width = dom.getWidth(_this.__background); + + _this.setValue( + map(e.clientX, offset.left, offset.left + width, _this.__min, _this.__max) + ); + + return false; + + } + + function onMouseUp() { + dom.unbind(window, 'mousemove', onMouseDrag); + dom.unbind(window, 'mouseup', onMouseUp); + if (_this.__onFinishChange) { + _this.__onFinishChange.call(_this, _this.getValue()); + } + } + + this.updateDisplay(); + + this.__background.appendChild(this.__foreground); + this.domElement.appendChild(this.__background); + + }; + + NumberControllerSlider.superclass = NumberController; + + /** + * Injects default stylesheet for slider elements. + */ + NumberControllerSlider.useDefaultStyles = function() { + css.inject(styleSheet); + }; + + common.extend( + + NumberControllerSlider.prototype, + NumberController.prototype, + + { + + updateDisplay: function() { + var pct = (this.getValue() - this.__min)/(this.__max - this.__min); + this.__foreground.style.width = pct*100+'%'; + return NumberControllerSlider.superclass.prototype.updateDisplay.call(this); + } + + } + + + + ); + + function map(v, i1, i2, o1, o2) { + return o1 + (o2 - o1) * ((v - i1) / (i2 - i1)); + } + + return NumberControllerSlider; + +})(dat.controllers.NumberController, +dat.dom.dom, +dat.utils.css, +dat.utils.common, +".slider {\n box-shadow: inset 0 2px 4px rgba(0,0,0,0.15);\n height: 1em;\n border-radius: 1em;\n background-color: #eee;\n padding: 0 0.5em;\n overflow: hidden;\n}\n\n.slider-fg {\n padding: 1px 0 2px 0;\n background-color: #aaa;\n height: 1em;\n margin-left: -0.5em;\n padding-right: 0.5em;\n border-radius: 1em 0 0 1em;\n}\n\n.slider-fg:after {\n display: inline-block;\n border-radius: 1em;\n background-color: #fff;\n border: 1px solid #aaa;\n content: '';\n float: right;\n margin-right: -1em;\n margin-top: -1px;\n height: 0.9em;\n width: 0.9em;\n}"); + + +dat.controllers.FunctionController = (function (Controller, dom, common) { + + /** + * @class Provides a GUI interface to fire a specified method, a property of an object. + * + * @extends dat.controllers.Controller + * + * @param {Object} object The object to be manipulated + * @param {string} property The name of the property to be manipulated + * + * @member dat.controllers + */ + var FunctionController = function(object, property, text) { + + FunctionController.superclass.call(this, object, property); + + var _this = this; + + this.__button = document.createElement('div'); + this.__button.innerHTML = text === undefined ? 'Fire' : text; + dom.bind(this.__button, 'click', function(e) { + e.preventDefault(); + _this.fire(); + return false; + }); + + dom.addClass(this.__button, 'button'); + + this.domElement.appendChild(this.__button); + + + }; + + FunctionController.superclass = Controller; + + common.extend( + + FunctionController.prototype, + Controller.prototype, + { + + fire: function() { + if (this.__onChange) { + this.__onChange.call(this); + } + if (this.__onFinishChange) { + this.__onFinishChange.call(this, this.getValue()); + } + this.getValue().call(this.object); + } + } + + ); + + return FunctionController; + +})(dat.controllers.Controller, +dat.dom.dom, +dat.utils.common); + + +dat.controllers.BooleanController = (function (Controller, dom, common) { + + /** + * @class Provides a checkbox input to alter the boolean property of an object. + * @extends dat.controllers.Controller + * + * @param {Object} object The object to be manipulated + * @param {string} property The name of the property to be manipulated + * + * @member dat.controllers + */ + var BooleanController = function(object, property) { + + BooleanController.superclass.call(this, object, property); + + var _this = this; + this.__prev = this.getValue(); + + this.__checkbox = document.createElement('input'); + this.__checkbox.setAttribute('type', 'checkbox'); + + + dom.bind(this.__checkbox, 'change', onChange, false); + + this.domElement.appendChild(this.__checkbox); + + // Match original value + this.updateDisplay(); + + function onChange() { + _this.setValue(!_this.__prev); + } + + }; + + BooleanController.superclass = Controller; + + common.extend( + + BooleanController.prototype, + Controller.prototype, + + { + + setValue: function(v) { + var toReturn = BooleanController.superclass.prototype.setValue.call(this, v); + if (this.__onFinishChange) { + this.__onFinishChange.call(this, this.getValue()); + } + this.__prev = this.getValue(); + return toReturn; + }, + + updateDisplay: function() { + + if (this.getValue() === true) { + this.__checkbox.setAttribute('checked', 'checked'); + this.__checkbox.checked = true; + } else { + this.__checkbox.checked = false; + } + + return BooleanController.superclass.prototype.updateDisplay.call(this); + + } + + + } + + ); + + return BooleanController; + +})(dat.controllers.Controller, +dat.dom.dom, +dat.utils.common); + + +dat.color.toString = (function (common) { + + return function(color) { + + if (color.a == 1 || common.isUndefined(color.a)) { + + var s = color.hex.toString(16); + while (s.length < 6) { + s = '0' + s; + } + + return '#' + s; + + } else { + + return 'rgba(' + Math.round(color.r) + ',' + Math.round(color.g) + ',' + Math.round(color.b) + ',' + color.a + ')'; + + } + + } + +})(dat.utils.common); + + +dat.color.interpret = (function (toString, common) { + + var result, toReturn; + + var interpret = function() { + + toReturn = false; + + var original = arguments.length > 1 ? common.toArray(arguments) : arguments[0]; + + common.each(INTERPRETATIONS, function(family) { + + if (family.litmus(original)) { + + common.each(family.conversions, function(conversion, conversionName) { + + result = conversion.read(original); + + if (toReturn === false && result !== false) { + toReturn = result; + result.conversionName = conversionName; + result.conversion = conversion; + return common.BREAK; + + } + + }); + + return common.BREAK; + + } + + }); + + return toReturn; + + }; + + var INTERPRETATIONS = [ + + // Strings + { + + litmus: common.isString, + + conversions: { + + THREE_CHAR_HEX: { + + read: function(original) { + + var test = original.match(/^#([A-F0-9])([A-F0-9])([A-F0-9])$/i); + if (test === null) return false; + + return { + space: 'HEX', + hex: parseInt( + '0x' + + test[1].toString() + test[1].toString() + + test[2].toString() + test[2].toString() + + test[3].toString() + test[3].toString()) + }; + + }, + + write: toString + + }, + + SIX_CHAR_HEX: { + + read: function(original) { + + var test = original.match(/^#([A-F0-9]{6})$/i); + if (test === null) return false; + + return { + space: 'HEX', + hex: parseInt('0x' + test[1].toString()) + }; + + }, + + write: toString + + }, + + CSS_RGB: { + + read: function(original) { + + var test = original.match(/^rgb\(\s*(.+)\s*,\s*(.+)\s*,\s*(.+)\s*\)/); + if (test === null) return false; + + return { + space: 'RGB', + r: parseFloat(test[1]), + g: parseFloat(test[2]), + b: parseFloat(test[3]) + }; + + }, + + write: toString + + }, + + CSS_RGBA: { + + read: function(original) { + + var test = original.match(/^rgba\(\s*(.+)\s*,\s*(.+)\s*,\s*(.+)\s*\,\s*(.+)\s*\)/); + if (test === null) return false; + + return { + space: 'RGB', + r: parseFloat(test[1]), + g: parseFloat(test[2]), + b: parseFloat(test[3]), + a: parseFloat(test[4]) + }; + + }, + + write: toString + + } + + } + + }, + + // Numbers + { + + litmus: common.isNumber, + + conversions: { + + HEX: { + read: function(original) { + return { + space: 'HEX', + hex: original, + conversionName: 'HEX' + } + }, + + write: function(color) { + return color.hex; + } + } + + } + + }, + + // Arrays + { + + litmus: common.isArray, + + conversions: { + + RGB_ARRAY: { + read: function(original) { + if (original.length != 3) return false; + return { + space: 'RGB', + r: original[0], + g: original[1], + b: original[2] + }; + }, + + write: function(color) { + return [color.r, color.g, color.b]; + } + + }, + + RGBA_ARRAY: { + read: function(original) { + if (original.length != 4) return false; + return { + space: 'RGB', + r: original[0], + g: original[1], + b: original[2], + a: original[3] + }; + }, + + write: function(color) { + return [color.r, color.g, color.b, color.a]; + } + + } + + } + + }, + + // Objects + { + + litmus: common.isObject, + + conversions: { + + RGBA_OBJ: { + read: function(original) { + if (common.isNumber(original.r) && + common.isNumber(original.g) && + common.isNumber(original.b) && + common.isNumber(original.a)) { + return { + space: 'RGB', + r: original.r, + g: original.g, + b: original.b, + a: original.a + } + } + return false; + }, + + write: function(color) { + return { + r: color.r, + g: color.g, + b: color.b, + a: color.a + } + } + }, + + RGB_OBJ: { + read: function(original) { + if (common.isNumber(original.r) && + common.isNumber(original.g) && + common.isNumber(original.b)) { + return { + space: 'RGB', + r: original.r, + g: original.g, + b: original.b + } + } + return false; + }, + + write: function(color) { + return { + r: color.r, + g: color.g, + b: color.b + } + } + }, + + HSVA_OBJ: { + read: function(original) { + if (common.isNumber(original.h) && + common.isNumber(original.s) && + common.isNumber(original.v) && + common.isNumber(original.a)) { + return { + space: 'HSV', + h: original.h, + s: original.s, + v: original.v, + a: original.a + } + } + return false; + }, + + write: function(color) { + return { + h: color.h, + s: color.s, + v: color.v, + a: color.a + } + } + }, + + HSV_OBJ: { + read: function(original) { + if (common.isNumber(original.h) && + common.isNumber(original.s) && + common.isNumber(original.v)) { + return { + space: 'HSV', + h: original.h, + s: original.s, + v: original.v + } + } + return false; + }, + + write: function(color) { + return { + h: color.h, + s: color.s, + v: color.v + } + } + + } + + } + + } + + + ]; + + return interpret; + + +})(dat.color.toString, +dat.utils.common); + + +dat.GUI = dat.gui.GUI = (function (css, saveDialogueContents, styleSheet, controllerFactory, Controller, BooleanController, FunctionController, NumberControllerBox, NumberControllerSlider, OptionController, ColorController, requestAnimationFrame, CenteredDiv, dom, common) { + + css.inject(styleSheet); + + /** Outer-most className for GUI's */ + var CSS_NAMESPACE = 'dg'; + + var HIDE_KEY_CODE = 72; + + /** The only value shared between the JS and SCSS. Use caution. */ + var CLOSE_BUTTON_HEIGHT = 20; + + var DEFAULT_DEFAULT_PRESET_NAME = 'Default'; + + var SUPPORTS_LOCAL_STORAGE = (function() { + try { + return 'localStorage' in window && window['localStorage'] !== null; + } catch (e) { + return false; + } + })(); + + var SAVE_DIALOGUE; + + /** Have we yet to create an autoPlace GUI? */ + var auto_place_virgin = true; + + /** Fixed position div that auto place GUI's go inside */ + var auto_place_container; + + /** Are we hiding the GUI's ? */ + var hide = false; + + /** GUI's which should be hidden */ + var hideable_guis = []; + + /** + * A lightweight controller library for JavaScript. It allows you to easily + * manipulate variables and fire functions on the fly. + * @class + * + * @member dat.gui + * + * @param {Object} [params] + * @param {String} [params.name] The name of this GUI. + * @param {Object} [params.load] JSON object representing the saved state of + * this GUI. + * @param {Boolean} [params.auto=true] + * @param {dat.gui.GUI} [params.parent] The GUI I'm nested in. + * @param {Boolean} [params.closed] If true, starts closed + */ + var GUI = function(params) { + + var _this = this; + + /** + * Outermost DOM Element + * @type DOMElement + */ + this.domElement = document.createElement('div'); + this.__ul = document.createElement('ul'); + this.domElement.appendChild(this.__ul); + + dom.addClass(this.domElement, CSS_NAMESPACE); + + /** + * Nested GUI's by name + * @ignore + */ + this.__folders = {}; + + this.__controllers = []; + + /** + * List of objects I'm remembering for save, only used in top level GUI + * @ignore + */ + this.__rememberedObjects = []; + + /** + * Maps the index of remembered objects to a map of controllers, only used + * in top level GUI. + * + * @private + * @ignore + * + * @example + * [ + * { + * propertyName: Controller, + * anotherPropertyName: Controller + * }, + * { + * propertyName: Controller + * } + * ] + */ + this.__rememberedObjectIndecesToControllers = []; + + this.__listening = []; + + params = params || {}; + + // Default parameters + params = common.defaults(params, { + autoPlace: true, + width: GUI.DEFAULT_WIDTH + }); + + params = common.defaults(params, { + resizable: params.autoPlace, + hideable: params.autoPlace + }); + + + if (!common.isUndefined(params.load)) { + + // Explicit preset + if (params.preset) params.load.preset = params.preset; + + } else { + + params.load = { preset: DEFAULT_DEFAULT_PRESET_NAME }; + + } + + if (common.isUndefined(params.parent) && params.hideable) { + hideable_guis.push(this); + } + + // Only root level GUI's are resizable. + params.resizable = common.isUndefined(params.parent) && params.resizable; + + + if (params.autoPlace && common.isUndefined(params.scrollable)) { + params.scrollable = true; + } +// params.scrollable = common.isUndefined(params.parent) && params.scrollable === true; + + // Not part of params because I don't want people passing this in via + // constructor. Should be a 'remembered' value. + var use_local_storage = + SUPPORTS_LOCAL_STORAGE && + localStorage.getItem(getLocalStorageHash(this, 'isLocal')) === 'true'; + + Object.defineProperties(this, + + /** @lends dat.gui.GUI.prototype */ + { + + /** + * The parent GUI + * @type dat.gui.GUI + */ + parent: { + get: function() { + return params.parent; + } + }, + + scrollable: { + get: function() { + return params.scrollable; + } + }, + + /** + * Handles GUI's element placement for you + * @type Boolean + */ + autoPlace: { + get: function() { + return params.autoPlace; + } + }, + + /** + * The identifier for a set of saved values + * @type String + */ + preset: { + + get: function() { + if (_this.parent) { + return _this.getRoot().preset; + } else { + return params.load.preset; + } + }, + + set: function(v) { + if (_this.parent) { + _this.getRoot().preset = v; + } else { + params.load.preset = v; + } + setPresetSelectIndex(this); + _this.revert(); + } + + }, + + /** + * The width of GUI element + * @type Number + */ + width: { + get: function() { + return params.width; + }, + set: function(v) { + params.width = v; + setWidth(_this, v); + } + }, + + /** + * The name of GUI. Used for folders. i.e + * a folder's name + * @type String + */ + name: { + get: function() { + return params.name; + }, + set: function(v) { + // TODO Check for collisions among sibling folders + params.name = v; + if (title_row_name) { + title_row_name.innerHTML = params.name; + } + } + }, + + /** + * Whether the GUI is collapsed or not + * @type Boolean + */ + closed: { + get: function() { + return params.closed; + }, + set: function(v) { + params.closed = v; + if (params.closed) { + dom.addClass(_this.__ul, GUI.CLASS_CLOSED); + } else { + dom.removeClass(_this.__ul, GUI.CLASS_CLOSED); + } + // For browsers that aren't going to respect the CSS transition, + // Lets just check our height against the window height right off + // the bat. + this.onResize(); + + if (_this.__closeButton) { + _this.__closeButton.innerHTML = v ? GUI.TEXT_OPEN : GUI.TEXT_CLOSED; + } + } + }, + + /** + * Contains all presets + * @type Object + */ + load: { + get: function() { + return params.load; + } + }, + + /** + * Determines whether or not to use localStorage as the means for + * remembering + * @type Boolean + */ + useLocalStorage: { + + get: function() { + return use_local_storage; + }, + set: function(bool) { + if (SUPPORTS_LOCAL_STORAGE) { + use_local_storage = bool; + if (bool) { + dom.bind(window, 'unload', saveToLocalStorage); + } else { + dom.unbind(window, 'unload', saveToLocalStorage); + } + localStorage.setItem(getLocalStorageHash(_this, 'isLocal'), bool); + } + } + + } + + }); + + // Are we a root level GUI? + if (common.isUndefined(params.parent)) { + + params.closed = false; + + dom.addClass(this.domElement, GUI.CLASS_MAIN); + dom.makeSelectable(this.domElement, false); + + // Are we supposed to be loading locally? + if (SUPPORTS_LOCAL_STORAGE) { + + if (use_local_storage) { + + _this.useLocalStorage = true; + + var saved_gui = localStorage.getItem(getLocalStorageHash(this, 'gui')); + + if (saved_gui) { + params.load = JSON.parse(saved_gui); + } + + } + + } + + this.__closeButton = document.createElement('div'); + this.__closeButton.innerHTML = GUI.TEXT_CLOSED; + dom.addClass(this.__closeButton, GUI.CLASS_CLOSE_BUTTON); + this.domElement.appendChild(this.__closeButton); + + dom.bind(this.__closeButton, 'click', function() { + + _this.closed = !_this.closed; + + + }); + + + // Oh, you're a nested GUI! + } else { + + if (params.closed === undefined) { + params.closed = true; + } + + var title_row_name = document.createTextNode(params.name); + dom.addClass(title_row_name, 'controller-name'); + + var title_row = addRow(_this, title_row_name); + + var on_click_title = function(e) { + e.preventDefault(); + _this.closed = !_this.closed; + return false; + }; + + dom.addClass(this.__ul, GUI.CLASS_CLOSED); + + dom.addClass(title_row, 'title'); + dom.bind(title_row, 'click', on_click_title); + + if (!params.closed) { + this.closed = false; + } + + } + + if (params.autoPlace) { + + if (common.isUndefined(params.parent)) { + + if (auto_place_virgin) { + auto_place_container = document.createElement('div'); + dom.addClass(auto_place_container, CSS_NAMESPACE); + dom.addClass(auto_place_container, GUI.CLASS_AUTO_PLACE_CONTAINER); + document.body.appendChild(auto_place_container); + auto_place_virgin = false; + } + + // Put it in the dom for you. + auto_place_container.appendChild(this.domElement); + + // Apply the auto styles + dom.addClass(this.domElement, GUI.CLASS_AUTO_PLACE); + + } + + + // Make it not elastic. + if (!this.parent) setWidth(_this, params.width); + + } + + dom.bind(window, 'resize', function() { _this.onResize() }); + dom.bind(this.__ul, 'webkitTransitionEnd', function() { _this.onResize(); }); + dom.bind(this.__ul, 'transitionend', function() { _this.onResize() }); + dom.bind(this.__ul, 'oTransitionEnd', function() { _this.onResize() }); + this.onResize(); + + + if (params.resizable) { + addResizeHandle(this); + } + + function saveToLocalStorage() { + localStorage.setItem(getLocalStorageHash(_this, 'gui'), JSON.stringify(_this.getSaveObject())); + } + + var root = _this.getRoot(); + function resetWidth() { + var root = _this.getRoot(); + root.width += 1; + common.defer(function() { + root.width -= 1; + }); + } + + if (!params.parent) { + resetWidth(); + } + + }; + + GUI.toggleHide = function() { + + hide = !hide; + common.each(hideable_guis, function(gui) { + gui.domElement.style.zIndex = hide ? -999 : 999; + gui.domElement.style.opacity = hide ? 0 : 1; + }); + }; + + GUI.CLASS_AUTO_PLACE = 'a'; + GUI.CLASS_AUTO_PLACE_CONTAINER = 'ac'; + GUI.CLASS_MAIN = 'main'; + GUI.CLASS_CONTROLLER_ROW = 'cr'; + GUI.CLASS_TOO_TALL = 'taller-than-window'; + GUI.CLASS_CLOSED = 'closed'; + GUI.CLASS_CLOSE_BUTTON = 'close-button'; + GUI.CLASS_DRAG = 'drag'; + + GUI.DEFAULT_WIDTH = 245; + GUI.TEXT_CLOSED = 'Close Controls'; + GUI.TEXT_OPEN = 'Open Controls'; + + dom.bind(window, 'keydown', function(e) { + + if (document.activeElement.type !== 'text' && + (e.which === HIDE_KEY_CODE || e.keyCode == HIDE_KEY_CODE)) { + GUI.toggleHide(); + } + + }, false); + + common.extend( + + GUI.prototype, + + /** @lends dat.gui.GUI */ + { + + /** + * @param object + * @param property + * @returns {dat.controllers.Controller} The new controller that was added. + * @instance + */ + add: function(object, property) { + + return add( + this, + object, + property, + { + factoryArgs: Array.prototype.slice.call(arguments, 2) + } + ); + + }, + + /** + * @param object + * @param property + * @returns {dat.controllers.ColorController} The new controller that was added. + * @instance + */ + addColor: function(object, property) { + + return add( + this, + object, + property, + { + color: true + } + ); + + }, + + /** + * @param controller + * @instance + */ + remove: function(controller) { + + // TODO listening? + this.__ul.removeChild(controller.__li); + this.__controllers.slice(this.__controllers.indexOf(controller), 1); + var _this = this; + common.defer(function() { + _this.onResize(); + }); + + }, + + destroy: function() { + + if (this.autoPlace) { + auto_place_container.removeChild(this.domElement); + } + + }, + + /** + * @param name + * @returns {dat.gui.GUI} The new folder. + * @throws {Error} if this GUI already has a folder by the specified + * name + * @instance + */ + addFolder: function(name) { + + // We have to prevent collisions on names in order to have a key + // by which to remember saved values + if (this.__folders[name] !== undefined) { + throw new Error('You already have a folder in this GUI by the' + + ' name "' + name + '"'); + } + + var new_gui_params = { name: name, parent: this }; + + // We need to pass down the autoPlace trait so that we can + // attach event listeners to open/close folder actions to + // ensure that a scrollbar appears if the window is too short. + new_gui_params.autoPlace = this.autoPlace; + + // Do we have saved appearance data for this folder? + + if (this.load && // Anything loaded? + this.load.folders && // Was my parent a dead-end? + this.load.folders[name]) { // Did daddy remember me? + + // Start me closed if I was closed + new_gui_params.closed = this.load.folders[name].closed; + + // Pass down the loaded data + new_gui_params.load = this.load.folders[name]; + + } + + var gui = new GUI(new_gui_params); + this.__folders[name] = gui; + + var li = addRow(this, gui.domElement); + dom.addClass(li, 'folder'); + return gui; + + }, + + open: function() { + this.closed = false; + }, + + close: function() { + this.closed = true; + }, + + onResize: function() { + + var root = this.getRoot(); + + if (root.scrollable) { + + var top = dom.getOffset(root.__ul).top; + var h = 0; + + common.each(root.__ul.childNodes, function(node) { + if (! (root.autoPlace && node === root.__save_row)) + h += dom.getHeight(node); + }); + + if (window.innerHeight - top - CLOSE_BUTTON_HEIGHT < h) { + dom.addClass(root.domElement, GUI.CLASS_TOO_TALL); + root.__ul.style.height = window.innerHeight - top - CLOSE_BUTTON_HEIGHT + 'px'; + } else { + dom.removeClass(root.domElement, GUI.CLASS_TOO_TALL); + root.__ul.style.height = 'auto'; + } + + } + + if (root.__resize_handle) { + common.defer(function() { + root.__resize_handle.style.height = root.__ul.offsetHeight + 'px'; + }); + } + + if (root.__closeButton) { + root.__closeButton.style.width = root.width + 'px'; + } + + }, + + /** + * Mark objects for saving. The order of these objects cannot change as + * the GUI grows. When remembering new objects, append them to the end + * of the list. + * + * @param {Object...} objects + * @throws {Error} if not called on a top level GUI. + * @instance + */ + remember: function() { + + if (common.isUndefined(SAVE_DIALOGUE)) { + SAVE_DIALOGUE = new CenteredDiv(); + SAVE_DIALOGUE.domElement.innerHTML = saveDialogueContents; + } + + if (this.parent) { + throw new Error("You can only call remember on a top level GUI."); + } + + var _this = this; + + common.each(Array.prototype.slice.call(arguments), function(object) { + if (_this.__rememberedObjects.length == 0) { + addSaveMenu(_this); + } + if (_this.__rememberedObjects.indexOf(object) == -1) { + _this.__rememberedObjects.push(object); + } + }); + + if (this.autoPlace) { + // Set save row width + setWidth(this, this.width); + } + + }, + + /** + * @returns {dat.gui.GUI} the topmost parent GUI of a nested GUI. + * @instance + */ + getRoot: function() { + var gui = this; + while (gui.parent) { + gui = gui.parent; + } + return gui; + }, + + /** + * @returns {Object} a JSON object representing the current state of + * this GUI as well as its remembered properties. + * @instance + */ + getSaveObject: function() { + + var toReturn = this.load; + + toReturn.closed = this.closed; + + // Am I remembering any values? + if (this.__rememberedObjects.length > 0) { + + toReturn.preset = this.preset; + + if (!toReturn.remembered) { + toReturn.remembered = {}; + } + + toReturn.remembered[this.preset] = getCurrentPreset(this); + + } + + toReturn.folders = {}; + common.each(this.__folders, function(element, key) { + toReturn.folders[key] = element.getSaveObject(); + }); + + return toReturn; + + }, + + save: function() { + + if (!this.load.remembered) { + this.load.remembered = {}; + } + + this.load.remembered[this.preset] = getCurrentPreset(this); + markPresetModified(this, false); + + }, + + saveAs: function(presetName) { + + if (!this.load.remembered) { + + // Retain default values upon first save + this.load.remembered = {}; + this.load.remembered[DEFAULT_DEFAULT_PRESET_NAME] = getCurrentPreset(this, true); + + } + + this.load.remembered[presetName] = getCurrentPreset(this); + this.preset = presetName; + addPresetOption(this, presetName, true); + + }, + + revert: function(gui) { + + common.each(this.__controllers, function(controller) { + // Make revert work on Default. + if (!this.getRoot().load.remembered) { + controller.setValue(controller.initialValue); + } else { + recallSavedValue(gui || this.getRoot(), controller); + } + }, this); + + common.each(this.__folders, function(folder) { + folder.revert(folder); + }); + + if (!gui) { + markPresetModified(this.getRoot(), false); + } + + + }, + + listen: function(controller) { + + var init = this.__listening.length == 0; + this.__listening.push(controller); + if (init) updateDisplays(this.__listening); + + } + + } + + ); + + function add(gui, object, property, params) { + + if (object[property] === undefined) { + throw new Error("Object " + object + " has no property \"" + property + "\""); + } + + var controller; + + if (params.color) { + + controller = new ColorController(object, property); + + } else { + + var factoryArgs = [object,property].concat(params.factoryArgs); + controller = controllerFactory.apply(gui, factoryArgs); + + } + + if (params.before instanceof Controller) { + params.before = params.before.__li; + } + + recallSavedValue(gui, controller); + + dom.addClass(controller.domElement, 'c'); + + var name = document.createElement('span'); + dom.addClass(name, 'property-name'); + name.innerHTML = controller.property; + + var container = document.createElement('div'); + container.appendChild(name); + container.appendChild(controller.domElement); + + var li = addRow(gui, container, params.before); + + dom.addClass(li, GUI.CLASS_CONTROLLER_ROW); + dom.addClass(li, typeof controller.getValue()); + + augmentController(gui, li, controller); + + gui.__controllers.push(controller); + + return controller; + + } + + /** + * Add a row to the end of the GUI or before another row. + * + * @param gui + * @param [dom] If specified, inserts the dom content in the new row + * @param [liBefore] If specified, places the new row before another row + */ + function addRow(gui, dom, liBefore) { + var li = document.createElement('li'); + if (dom) li.appendChild(dom); + if (liBefore) { + gui.__ul.insertBefore(li, params.before); + } else { + gui.__ul.appendChild(li); + } + gui.onResize(); + return li; + } + + function augmentController(gui, li, controller) { + + controller.__li = li; + controller.__gui = gui; + + common.extend(controller, { + + options: function(options) { + + if (arguments.length > 1) { + controller.remove(); + + return add( + gui, + controller.object, + controller.property, + { + before: controller.__li.nextElementSibling, + factoryArgs: [common.toArray(arguments)] + } + ); + + } + + if (common.isArray(options) || common.isObject(options)) { + controller.remove(); + + return add( + gui, + controller.object, + controller.property, + { + before: controller.__li.nextElementSibling, + factoryArgs: [options] + } + ); + + } + + }, + + name: function(v) { + controller.__li.firstElementChild.firstElementChild.innerHTML = v; + return controller; + }, + + listen: function() { + controller.__gui.listen(controller); + return controller; + }, + + remove: function() { + controller.__gui.remove(controller); + return controller; + } + + }); + + // All sliders should be accompanied by a box. + if (controller instanceof NumberControllerSlider) { + + var box = new NumberControllerBox(controller.object, controller.property, + { min: controller.__min, max: controller.__max, step: controller.__step }); + + common.each(['updateDisplay', 'onChange', 'onFinishChange'], function(method) { + var pc = controller[method]; + var pb = box[method]; + controller[method] = box[method] = function() { + var args = Array.prototype.slice.call(arguments); + pc.apply(controller, args); + return pb.apply(box, args); + } + }); + + dom.addClass(li, 'has-slider'); + controller.domElement.insertBefore(box.domElement, controller.domElement.firstElementChild); + + } + else if (controller instanceof NumberControllerBox) { + + var r = function(returned) { + + // Have we defined both boundaries? + if (common.isNumber(controller.__min) && common.isNumber(controller.__max)) { + + // Well, then lets just replace this with a slider. + controller.remove(); + return add( + gui, + controller.object, + controller.property, + { + before: controller.__li.nextElementSibling, + factoryArgs: [controller.__min, controller.__max, controller.__step] + }); + + } + + return returned; + + }; + + controller.min = common.compose(r, controller.min); + controller.max = common.compose(r, controller.max); + + } + else if (controller instanceof BooleanController) { + + dom.bind(li, 'click', function() { + dom.fakeEvent(controller.__checkbox, 'click'); + }); + + dom.bind(controller.__checkbox, 'click', function(e) { + e.stopPropagation(); // Prevents double-toggle + }) + + } + else if (controller instanceof FunctionController) { + + dom.bind(li, 'click', function() { + dom.fakeEvent(controller.__button, 'click'); + }); + + dom.bind(li, 'mouseover', function() { + dom.addClass(controller.__button, 'hover'); + }); + + dom.bind(li, 'mouseout', function() { + dom.removeClass(controller.__button, 'hover'); + }); + + } + else if (controller instanceof ColorController) { + + dom.addClass(li, 'color'); + controller.updateDisplay = common.compose(function(r) { + li.style.borderLeftColor = controller.__color.toString(); + return r; + }, controller.updateDisplay); + + controller.updateDisplay(); + + } + + controller.setValue = common.compose(function(r) { + if (gui.getRoot().__preset_select && controller.isModified()) { + markPresetModified(gui.getRoot(), true); + } + return r; + }, controller.setValue); + + } + + function recallSavedValue(gui, controller) { + + // Find the topmost GUI, that's where remembered objects live. + var root = gui.getRoot(); + + // Does the object we're controlling match anything we've been told to + // remember? + var matched_index = root.__rememberedObjects.indexOf(controller.object); + + // Why yes, it does! + if (matched_index != -1) { + + // Let me fetch a map of controllers for thcommon.isObject. + var controller_map = + root.__rememberedObjectIndecesToControllers[matched_index]; + + // Ohp, I believe this is the first controller we've created for this + // object. Lets make the map fresh. + if (controller_map === undefined) { + controller_map = {}; + root.__rememberedObjectIndecesToControllers[matched_index] = + controller_map; + } + + // Keep track of this controller + controller_map[controller.property] = controller; + + // Okay, now have we saved any values for this controller? + if (root.load && root.load.remembered) { + + var preset_map = root.load.remembered; + + // Which preset are we trying to load? + var preset; + + if (preset_map[gui.preset]) { + + preset = preset_map[gui.preset]; + + } else if (preset_map[DEFAULT_DEFAULT_PRESET_NAME]) { + + // Uhh, you can have the default instead? + preset = preset_map[DEFAULT_DEFAULT_PRESET_NAME]; + + } else { + + // Nada. + + return; + + } + + + // Did the loaded object remember thcommon.isObject? + if (preset[matched_index] && + + // Did we remember this particular property? + preset[matched_index][controller.property] !== undefined) { + + // We did remember something for this guy ... + var value = preset[matched_index][controller.property]; + + // And that's what it is. + controller.initialValue = value; + controller.setValue(value); + + } + + } + + } + + } + + function getLocalStorageHash(gui, key) { + // TODO how does this deal with multiple GUI's? + return document.location.href + '.' + key; + + } + + function addSaveMenu(gui) { + + var div = gui.__save_row = document.createElement('li'); + + dom.addClass(gui.domElement, 'has-save'); + + gui.__ul.insertBefore(div, gui.__ul.firstChild); + + dom.addClass(div, 'save-row'); + + var gears = document.createElement('span'); + gears.innerHTML = ' '; + dom.addClass(gears, 'button gears'); + + // TODO replace with FunctionController + var button = document.createElement('span'); + button.innerHTML = 'Save'; + dom.addClass(button, 'button'); + dom.addClass(button, 'save'); + + var button2 = document.createElement('span'); + button2.innerHTML = 'New'; + dom.addClass(button2, 'button'); + dom.addClass(button2, 'save-as'); + + var button3 = document.createElement('span'); + button3.innerHTML = 'Revert'; + dom.addClass(button3, 'button'); + dom.addClass(button3, 'revert'); + + var select = gui.__preset_select = document.createElement('select'); + + if (gui.load && gui.load.remembered) { + + common.each(gui.load.remembered, function(value, key) { + addPresetOption(gui, key, key == gui.preset); + }); + + } else { + addPresetOption(gui, DEFAULT_DEFAULT_PRESET_NAME, false); + } + + dom.bind(select, 'change', function() { + + + for (var index = 0; index < gui.__preset_select.length; index++) { + gui.__preset_select[index].innerHTML = gui.__preset_select[index].value; + } + + gui.preset = this.value; + + }); + + div.appendChild(select); + div.appendChild(gears); + div.appendChild(button); + div.appendChild(button2); + div.appendChild(button3); + + if (SUPPORTS_LOCAL_STORAGE) { + + var saveLocally = document.getElementById('dg-save-locally'); + var explain = document.getElementById('dg-local-explain'); + + saveLocally.style.display = 'block'; + + var localStorageCheckBox = document.getElementById('dg-local-storage'); + + if (localStorage.getItem(getLocalStorageHash(gui, 'isLocal')) === 'true') { + localStorageCheckBox.setAttribute('checked', 'checked'); + } + + function showHideExplain() { + explain.style.display = gui.useLocalStorage ? 'block' : 'none'; + } + + showHideExplain(); + + // TODO: Use a boolean controller, fool! + dom.bind(localStorageCheckBox, 'change', function() { + gui.useLocalStorage = !gui.useLocalStorage; + showHideExplain(); + }); + + } + + var newConstructorTextArea = document.getElementById('dg-new-constructor'); + + dom.bind(newConstructorTextArea, 'keydown', function(e) { + if (e.metaKey && (e.which === 67 || e.keyCode == 67)) { + SAVE_DIALOGUE.hide(); + } + }); + + dom.bind(gears, 'click', function() { + newConstructorTextArea.innerHTML = JSON.stringify(gui.getSaveObject(), undefined, 2); + SAVE_DIALOGUE.show(); + newConstructorTextArea.focus(); + newConstructorTextArea.select(); + }); + + dom.bind(button, 'click', function() { + gui.save(); + }); + + dom.bind(button2, 'click', function() { + var presetName = prompt('Enter a new preset name.'); + if (presetName) gui.saveAs(presetName); + }); + + dom.bind(button3, 'click', function() { + gui.revert(); + }); + +// div.appendChild(button2); + + } + + function addResizeHandle(gui) { + + gui.__resize_handle = document.createElement('div'); + + common.extend(gui.__resize_handle.style, { + + width: '6px', + marginLeft: '-3px', + height: '200px', + cursor: 'ew-resize', + position: 'absolute' +// border: '1px solid blue' + + }); + + var pmouseX; + + dom.bind(gui.__resize_handle, 'mousedown', dragStart); + dom.bind(gui.__closeButton, 'mousedown', dragStart); + + gui.domElement.insertBefore(gui.__resize_handle, gui.domElement.firstElementChild); + + function dragStart(e) { + + e.preventDefault(); + + pmouseX = e.clientX; + + dom.addClass(gui.__closeButton, GUI.CLASS_DRAG); + dom.bind(window, 'mousemove', drag); + dom.bind(window, 'mouseup', dragStop); + + return false; + + } + + function drag(e) { + + e.preventDefault(); + + gui.width += pmouseX - e.clientX; + gui.onResize(); + pmouseX = e.clientX; + + return false; + + } + + function dragStop() { + + dom.removeClass(gui.__closeButton, GUI.CLASS_DRAG); + dom.unbind(window, 'mousemove', drag); + dom.unbind(window, 'mouseup', dragStop); + + } + + } + + function setWidth(gui, w) { + gui.domElement.style.width = w + 'px'; + // Auto placed save-rows are position fixed, so we have to + // set the width manually if we want it to bleed to the edge + if (gui.__save_row && gui.autoPlace) { + gui.__save_row.style.width = w + 'px'; + }if (gui.__closeButton) { + gui.__closeButton.style.width = w + 'px'; + } + } + + function getCurrentPreset(gui, useInitialValues) { + + var toReturn = {}; + + // For each object I'm remembering + common.each(gui.__rememberedObjects, function(val, index) { + + var saved_values = {}; + + // The controllers I've made for thcommon.isObject by property + var controller_map = + gui.__rememberedObjectIndecesToControllers[index]; + + // Remember each value for each property + common.each(controller_map, function(controller, property) { + saved_values[property] = useInitialValues ? controller.initialValue : controller.getValue(); + }); + + // Save the values for thcommon.isObject + toReturn[index] = saved_values; + + }); + + return toReturn; + + } + + function addPresetOption(gui, name, setSelected) { + var opt = document.createElement('option'); + opt.innerHTML = name; + opt.value = name; + gui.__preset_select.appendChild(opt); + if (setSelected) { + gui.__preset_select.selectedIndex = gui.__preset_select.length - 1; + } + } + + function setPresetSelectIndex(gui) { + for (var index = 0; index < gui.__preset_select.length; index++) { + if (gui.__preset_select[index].value == gui.preset) { + gui.__preset_select.selectedIndex = index; + } + } + } + + function markPresetModified(gui, modified) { + var opt = gui.__preset_select[gui.__preset_select.selectedIndex]; +// console.log('mark', modified, opt); + if (modified) { + opt.innerHTML = opt.value + "*"; + } else { + opt.innerHTML = opt.value; + } + } + + function updateDisplays(controllerArray) { + + + if (controllerArray.length != 0) { + + requestAnimationFrame(function() { + updateDisplays(controllerArray); + }); + + } + + common.each(controllerArray, function(c) { + c.updateDisplay(); + }); + + } + + return GUI; + +})(dat.utils.css, +"
\n\n Here's the new load parameter for your GUI's constructor:\n\n \n\n
\n\n Automatically save\n values to localStorage on exit.\n\n
The values saved to localStorage will\n override those passed to dat.GUI's constructor. This makes it\n easier to work incrementally, but localStorage is fragile,\n and your friends may not see the same values you do.\n \n
\n \n
\n\n
", +".dg ul{list-style:none;margin:0;padding:0;width:100%;clear:both}.dg.ac{position:fixed;top:0;left:0;right:0;height:0;z-index:0}.dg:not(.ac) .main{overflow:hidden}.dg.main{-webkit-transition:opacity 0.1s linear;-o-transition:opacity 0.1s linear;-moz-transition:opacity 0.1s linear;transition:opacity 0.1s linear}.dg.main.taller-than-window{overflow-y:auto}.dg.main.taller-than-window .close-button{opacity:1;margin-top:-1px;border-top:1px solid #2c2c2c}.dg.main ul.closed .close-button{opacity:1 !important}.dg.main:hover .close-button,.dg.main .close-button.drag{opacity:1}.dg.main .close-button{-webkit-transition:opacity 0.1s linear;-o-transition:opacity 0.1s linear;-moz-transition:opacity 0.1s linear;transition:opacity 0.1s linear;border:0;position:absolute;line-height:19px;height:20px;cursor:pointer;text-align:center;background-color:#000}.dg.main .close-button:hover{background-color:#111}.dg.a{float:right;margin-right:15px;overflow-x:hidden}.dg.a.has-save ul{margin-top:27px}.dg.a.has-save ul.closed{margin-top:0}.dg.a .save-row{position:fixed;top:0;z-index:1002}.dg li{-webkit-transition:height 0.1s ease-out;-o-transition:height 0.1s ease-out;-moz-transition:height 0.1s ease-out;transition:height 0.1s ease-out}.dg li:not(.folder){cursor:auto;height:27px;line-height:27px;overflow:hidden;padding:0 4px 0 5px}.dg li.folder{padding:0;border-left:4px solid rgba(0,0,0,0)}.dg li.title{cursor:pointer;margin-left:-4px}.dg .closed li:not(.title),.dg .closed ul li,.dg .closed ul li > *{height:0;overflow:hidden;border:0}.dg .cr{clear:both;padding-left:3px;height:27px}.dg .property-name{cursor:default;float:left;clear:left;width:40%;overflow:hidden;text-overflow:ellipsis}.dg .c{float:left;width:60%}.dg .c input[type=text]{border:0;margin-top:4px;padding:3px;width:100%;float:right}.dg .has-slider input[type=text]{width:30%;margin-left:0}.dg .slider{float:left;width:66%;margin-left:-5px;margin-right:0;height:19px;margin-top:4px}.dg .slider-fg{height:100%}.dg .c input[type=checkbox]{margin-top:9px}.dg .c select{margin-top:5px}.dg .cr.function,.dg .cr.function .property-name,.dg .cr.function *,.dg .cr.boolean,.dg .cr.boolean *{cursor:pointer}.dg .selector{display:none;position:absolute;margin-left:-9px;margin-top:23px;z-index:10}.dg .c:hover .selector,.dg .selector.drag{display:block}.dg li.save-row{padding:0}.dg li.save-row .button{display:inline-block;padding:0px 6px}.dg.dialogue{background-color:#222;width:460px;padding:15px;font-size:13px;line-height:15px}#dg-new-constructor{padding:10px;color:#222;font-family:Monaco, monospace;font-size:10px;border:0;resize:none;box-shadow:inset 1px 1px 1px #888;word-wrap:break-word;margin:12px 0;display:block;width:440px;overflow-y:scroll;height:100px;position:relative}#dg-local-explain{display:none;font-size:11px;line-height:17px;border-radius:3px;background-color:#333;padding:8px;margin-top:10px}#dg-local-explain code{font-size:10px}#dat-gui-save-locally{display:none}.dg{color:#eee;font:11px 'Lucida Grande', sans-serif;text-shadow:0 -1px 0 #111}.dg.main::-webkit-scrollbar{width:5px;background:#1a1a1a}.dg.main::-webkit-scrollbar-corner{height:0;display:none}.dg.main::-webkit-scrollbar-thumb{border-radius:5px;background:#676767}.dg li:not(.folder){background:#1a1a1a;border-bottom:1px solid #2c2c2c}.dg li.save-row{line-height:25px;background:#dad5cb;border:0}.dg li.save-row select{margin-left:5px;width:108px}.dg li.save-row .button{margin-left:5px;margin-top:1px;border-radius:2px;font-size:9px;line-height:7px;padding:4px 4px 5px 4px;background:#c5bdad;color:#fff;text-shadow:0 1px 0 #b0a58f;box-shadow:0 -1px 0 #b0a58f;cursor:pointer}.dg li.save-row .button.gears{background:#c5bdad url(data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAsAAAANCAYAAAB/9ZQ7AAAAGXRFWHRTb2Z0d2FyZQBBZG9iZSBJbWFnZVJlYWR5ccllPAAAAQJJREFUeNpiYKAU/P//PwGIC/ApCABiBSAW+I8AClAcgKxQ4T9hoMAEUrxx2QSGN6+egDX+/vWT4e7N82AMYoPAx/evwWoYoSYbACX2s7KxCxzcsezDh3evFoDEBYTEEqycggWAzA9AuUSQQgeYPa9fPv6/YWm/Acx5IPb7ty/fw+QZblw67vDs8R0YHyQhgObx+yAJkBqmG5dPPDh1aPOGR/eugW0G4vlIoTIfyFcA+QekhhHJhPdQxbiAIguMBTQZrPD7108M6roWYDFQiIAAv6Aow/1bFwXgis+f2LUAynwoIaNcz8XNx3Dl7MEJUDGQpx9gtQ8YCueB+D26OECAAQDadt7e46D42QAAAABJRU5ErkJggg==) 2px 1px no-repeat;height:7px;width:8px}.dg li.save-row .button:hover{background-color:#bab19e;box-shadow:0 -1px 0 #b0a58f}.dg li.folder{border-bottom:0}.dg li.title{padding-left:16px;background:#000 url(data:image/gif;base64,R0lGODlhBQAFAJEAAP////Pz8////////yH5BAEAAAIALAAAAAAFAAUAAAIIlI+hKgFxoCgAOw==) 6px 10px no-repeat;cursor:pointer;border-bottom:1px solid rgba(255,255,255,0.2)}.dg .closed li.title{background-image:url(data:image/gif;base64,R0lGODlhBQAFAJEAAP////Pz8////////yH5BAEAAAIALAAAAAAFAAUAAAIIlGIWqMCbWAEAOw==)}.dg .cr.boolean{border-left:3px solid #806787}.dg .cr.function{border-left:3px solid #e61d5f}.dg .cr.number{border-left:3px solid #2fa1d6}.dg .cr.number input[type=text]{color:#2fa1d6}.dg .cr.string{border-left:3px solid #1ed36f}.dg .cr.string input[type=text]{color:#1ed36f}.dg .cr.function:hover,.dg .cr.boolean:hover{background:#111}.dg .c input[type=text]{background:#303030;outline:none}.dg .c input[type=text]:hover{background:#3c3c3c}.dg .c input[type=text]:focus{background:#494949;color:#fff}.dg .c .slider{background:#303030;cursor:ew-resize}.dg .c .slider-fg{background:#2fa1d6}.dg .c .slider:hover{background:#3c3c3c}.dg .c .slider:hover .slider-fg{background:#44abda}\n", +dat.controllers.factory = (function (OptionController, NumberControllerBox, NumberControllerSlider, StringController, FunctionController, BooleanController, common) { + + return function(object, property) { + + var initialValue = object[property]; + + // Providing options? + if (common.isArray(arguments[2]) || common.isObject(arguments[2])) { + return new OptionController(object, property, arguments[2]); + } + + // Providing a map? + + if (common.isNumber(initialValue)) { + + if (common.isNumber(arguments[2]) && common.isNumber(arguments[3])) { + + // Has min and max. + return new NumberControllerSlider(object, property, arguments[2], arguments[3]); + + } else { + + return new NumberControllerBox(object, property, { min: arguments[2], max: arguments[3] }); + + } + + } + + if (common.isString(initialValue)) { + return new StringController(object, property); + } + + if (common.isFunction(initialValue)) { + return new FunctionController(object, property, ''); + } + + if (common.isBoolean(initialValue)) { + return new BooleanController(object, property); + } + + } + + })(dat.controllers.OptionController, +dat.controllers.NumberControllerBox, +dat.controllers.NumberControllerSlider, +dat.controllers.StringController = (function (Controller, dom, common) { + + /** + * @class Provides a text input to alter the string property of an object. + * + * @extends dat.controllers.Controller + * + * @param {Object} object The object to be manipulated + * @param {string} property The name of the property to be manipulated + * + * @member dat.controllers + */ + var StringController = function(object, property) { + + StringController.superclass.call(this, object, property); + + var _this = this; + + this.__input = document.createElement('input'); + this.__input.setAttribute('type', 'text'); + + dom.bind(this.__input, 'keyup', onChange); + dom.bind(this.__input, 'change', onChange); + dom.bind(this.__input, 'blur', onBlur); + dom.bind(this.__input, 'keydown', function(e) { + if (e.keyCode === 13) { + this.blur(); + } + }); + + + function onChange() { + _this.setValue(_this.__input.value); + } + + function onBlur() { + if (_this.__onFinishChange) { + _this.__onFinishChange.call(_this, _this.getValue()); + } + } + + this.updateDisplay(); + + this.domElement.appendChild(this.__input); + + }; + + StringController.superclass = Controller; + + common.extend( + + StringController.prototype, + Controller.prototype, + + { + + updateDisplay: function() { + // Stops the caret from moving on account of: + // keyup -> setValue -> updateDisplay + if (!dom.isActive(this.__input)) { + this.__input.value = this.getValue(); + } + return StringController.superclass.prototype.updateDisplay.call(this); + } + + } + + ); + + return StringController; + +})(dat.controllers.Controller, +dat.dom.dom, +dat.utils.common), +dat.controllers.FunctionController, +dat.controllers.BooleanController, +dat.utils.common), +dat.controllers.Controller, +dat.controllers.BooleanController, +dat.controllers.FunctionController, +dat.controllers.NumberControllerBox, +dat.controllers.NumberControllerSlider, +dat.controllers.OptionController, +dat.controllers.ColorController = (function (Controller, dom, Color, interpret, common) { + + var ColorController = function(object, property) { + + ColorController.superclass.call(this, object, property); + + this.__color = new Color(this.getValue()); + this.__temp = new Color(0); + + var _this = this; + + this.domElement = document.createElement('div'); + + dom.makeSelectable(this.domElement, false); + + this.__selector = document.createElement('div'); + this.__selector.className = 'selector'; + + this.__saturation_field = document.createElement('div'); + this.__saturation_field.className = 'saturation-field'; + + this.__field_knob = document.createElement('div'); + this.__field_knob.className = 'field-knob'; + this.__field_knob_border = '2px solid '; + + this.__hue_knob = document.createElement('div'); + this.__hue_knob.className = 'hue-knob'; + + this.__hue_field = document.createElement('div'); + this.__hue_field.className = 'hue-field'; + + this.__input = document.createElement('input'); + this.__input.type = 'text'; + this.__input_textShadow = '0 1px 1px '; + + dom.bind(this.__input, 'keydown', function(e) { + if (e.keyCode === 13) { // on enter + onBlur.call(this); + } + }); + + dom.bind(this.__input, 'blur', onBlur); + + dom.bind(this.__selector, 'mousedown', function(e) { + + dom + .addClass(this, 'drag') + .bind(window, 'mouseup', function(e) { + dom.removeClass(_this.__selector, 'drag'); + }); + + }); + + var value_field = document.createElement('div'); + + common.extend(this.__selector.style, { + width: '122px', + height: '102px', + padding: '3px', + backgroundColor: '#222', + boxShadow: '0px 1px 3px rgba(0,0,0,0.3)' + }); + + common.extend(this.__field_knob.style, { + position: 'absolute', + width: '12px', + height: '12px', + border: this.__field_knob_border + (this.__color.v < .5 ? '#fff' : '#000'), + boxShadow: '0px 1px 3px rgba(0,0,0,0.5)', + borderRadius: '12px', + zIndex: 1 + }); + + common.extend(this.__hue_knob.style, { + position: 'absolute', + width: '15px', + height: '2px', + borderRight: '4px solid #fff', + zIndex: 1 + }); + + common.extend(this.__saturation_field.style, { + width: '100px', + height: '100px', + border: '1px solid #555', + marginRight: '3px', + display: 'inline-block', + cursor: 'pointer' + }); + + common.extend(value_field.style, { + width: '100%', + height: '100%', + background: 'none' + }); + + linearGradient(value_field, 'top', 'rgba(0,0,0,0)', '#000'); + + common.extend(this.__hue_field.style, { + width: '15px', + height: '100px', + display: 'inline-block', + border: '1px solid #555', + cursor: 'ns-resize' + }); + + hueGradient(this.__hue_field); + + common.extend(this.__input.style, { + outline: 'none', +// width: '120px', + textAlign: 'center', +// padding: '4px', +// marginBottom: '6px', + color: '#fff', + border: 0, + fontWeight: 'bold', + textShadow: this.__input_textShadow + 'rgba(0,0,0,0.7)' + }); + + dom.bind(this.__saturation_field, 'mousedown', fieldDown); + dom.bind(this.__field_knob, 'mousedown', fieldDown); + + dom.bind(this.__hue_field, 'mousedown', function(e) { + setH(e); + dom.bind(window, 'mousemove', setH); + dom.bind(window, 'mouseup', unbindH); + }); + + function fieldDown(e) { + setSV(e); + // document.body.style.cursor = 'none'; + dom.bind(window, 'mousemove', setSV); + dom.bind(window, 'mouseup', unbindSV); + } + + function unbindSV() { + dom.unbind(window, 'mousemove', setSV); + dom.unbind(window, 'mouseup', unbindSV); + // document.body.style.cursor = 'default'; + } + + function onBlur() { + var i = interpret(this.value); + if (i !== false) { + _this.__color.__state = i; + _this.setValue(_this.__color.toOriginal()); + } else { + this.value = _this.__color.toString(); + } + } + + function unbindH() { + dom.unbind(window, 'mousemove', setH); + dom.unbind(window, 'mouseup', unbindH); + } + + this.__saturation_field.appendChild(value_field); + this.__selector.appendChild(this.__field_knob); + this.__selector.appendChild(this.__saturation_field); + this.__selector.appendChild(this.__hue_field); + this.__hue_field.appendChild(this.__hue_knob); + + this.domElement.appendChild(this.__input); + this.domElement.appendChild(this.__selector); + + this.updateDisplay(); + + function setSV(e) { + + e.preventDefault(); + + var w = dom.getWidth(_this.__saturation_field); + var o = dom.getOffset(_this.__saturation_field); + var s = (e.clientX - o.left + document.body.scrollLeft) / w; + var v = 1 - (e.clientY - o.top + document.body.scrollTop) / w; + + if (v > 1) v = 1; + else if (v < 0) v = 0; + + if (s > 1) s = 1; + else if (s < 0) s = 0; + + _this.__color.v = v; + _this.__color.s = s; + + _this.setValue(_this.__color.toOriginal()); + + + return false; + + } + + function setH(e) { + + e.preventDefault(); + + var s = dom.getHeight(_this.__hue_field); + var o = dom.getOffset(_this.__hue_field); + var h = 1 - (e.clientY - o.top + document.body.scrollTop) / s; + + if (h > 1) h = 1; + else if (h < 0) h = 0; + + _this.__color.h = h * 360; + + _this.setValue(_this.__color.toOriginal()); + + return false; + + } + + }; + + ColorController.superclass = Controller; + + common.extend( + + ColorController.prototype, + Controller.prototype, + + { + + updateDisplay: function() { + + var i = interpret(this.getValue()); + + if (i !== false) { + + var mismatch = false; + + // Check for mismatch on the interpreted value. + + common.each(Color.COMPONENTS, function(component) { + if (!common.isUndefined(i[component]) && + !common.isUndefined(this.__color.__state[component]) && + i[component] !== this.__color.__state[component]) { + mismatch = true; + return {}; // break + } + }, this); + + // If nothing diverges, we keep our previous values + // for statefulness, otherwise we recalculate fresh + if (mismatch) { + common.extend(this.__color.__state, i); + } + + } + + common.extend(this.__temp.__state, this.__color.__state); + + this.__temp.a = 1; + + var flip = (this.__color.v < .5 || this.__color.s > .5) ? 255 : 0; + var _flip = 255 - flip; + + common.extend(this.__field_knob.style, { + marginLeft: 100 * this.__color.s - 7 + 'px', + marginTop: 100 * (1 - this.__color.v) - 7 + 'px', + backgroundColor: this.__temp.toString(), + border: this.__field_knob_border + 'rgb(' + flip + ',' + flip + ',' + flip +')' + }); + + this.__hue_knob.style.marginTop = (1 - this.__color.h / 360) * 100 + 'px' + + this.__temp.s = 1; + this.__temp.v = 1; + + linearGradient(this.__saturation_field, 'left', '#fff', this.__temp.toString()); + + common.extend(this.__input.style, { + backgroundColor: this.__input.value = this.__color.toString(), + color: 'rgb(' + flip + ',' + flip + ',' + flip +')', + textShadow: this.__input_textShadow + 'rgba(' + _flip + ',' + _flip + ',' + _flip +',.7)' + }); + + } + + } + + ); + + var vendors = ['-moz-','-o-','-webkit-','-ms-','']; + + function linearGradient(elem, x, a, b) { + elem.style.background = ''; + common.each(vendors, function(vendor) { + elem.style.cssText += 'background: ' + vendor + 'linear-gradient('+x+', '+a+' 0%, ' + b + ' 100%); '; + }); + } + + function hueGradient(elem) { + elem.style.background = ''; + elem.style.cssText += 'background: -moz-linear-gradient(top, #ff0000 0%, #ff00ff 17%, #0000ff 34%, #00ffff 50%, #00ff00 67%, #ffff00 84%, #ff0000 100%);' + elem.style.cssText += 'background: -webkit-linear-gradient(top, #ff0000 0%,#ff00ff 17%,#0000ff 34%,#00ffff 50%,#00ff00 67%,#ffff00 84%,#ff0000 100%);' + elem.style.cssText += 'background: -o-linear-gradient(top, #ff0000 0%,#ff00ff 17%,#0000ff 34%,#00ffff 50%,#00ff00 67%,#ffff00 84%,#ff0000 100%);' + elem.style.cssText += 'background: -ms-linear-gradient(top, #ff0000 0%,#ff00ff 17%,#0000ff 34%,#00ffff 50%,#00ff00 67%,#ffff00 84%,#ff0000 100%);' + elem.style.cssText += 'background: linear-gradient(top, #ff0000 0%,#ff00ff 17%,#0000ff 34%,#00ffff 50%,#00ff00 67%,#ffff00 84%,#ff0000 100%);' + } + + + return ColorController; + +})(dat.controllers.Controller, +dat.dom.dom, +dat.color.Color = (function (interpret, math, toString, common) { + + var Color = function() { + + this.__state = interpret.apply(this, arguments); + + if (this.__state === false) { + throw 'Failed to interpret color arguments'; + } + + this.__state.a = this.__state.a || 1; + + + }; + + Color.COMPONENTS = ['r','g','b','h','s','v','hex','a']; + + common.extend(Color.prototype, { + + toString: function() { + return toString(this); + }, + + toOriginal: function() { + return this.__state.conversion.write(this); + } + + }); + + defineRGBComponent(Color.prototype, 'r', 2); + defineRGBComponent(Color.prototype, 'g', 1); + defineRGBComponent(Color.prototype, 'b', 0); + + defineHSVComponent(Color.prototype, 'h'); + defineHSVComponent(Color.prototype, 's'); + defineHSVComponent(Color.prototype, 'v'); + + Object.defineProperty(Color.prototype, 'a', { + + get: function() { + return this.__state.a; + }, + + set: function(v) { + this.__state.a = v; + } + + }); + + Object.defineProperty(Color.prototype, 'hex', { + + get: function() { + + if (!this.__state.space !== 'HEX') { + this.__state.hex = math.rgb_to_hex(this.r, this.g, this.b); + } + + return this.__state.hex; + + }, + + set: function(v) { + + this.__state.space = 'HEX'; + this.__state.hex = v; + + } + + }); + + function defineRGBComponent(target, component, componentHexIndex) { + + Object.defineProperty(target, component, { + + get: function() { + + if (this.__state.space === 'RGB') { + return this.__state[component]; + } + + recalculateRGB(this, component, componentHexIndex); + + return this.__state[component]; + + }, + + set: function(v) { + + if (this.__state.space !== 'RGB') { + recalculateRGB(this, component, componentHexIndex); + this.__state.space = 'RGB'; + } + + this.__state[component] = v; + + } + + }); + + } + + function defineHSVComponent(target, component) { + + Object.defineProperty(target, component, { + + get: function() { + + if (this.__state.space === 'HSV') + return this.__state[component]; + + recalculateHSV(this); + + return this.__state[component]; + + }, + + set: function(v) { + + if (this.__state.space !== 'HSV') { + recalculateHSV(this); + this.__state.space = 'HSV'; + } + + this.__state[component] = v; + + } + + }); + + } + + function recalculateRGB(color, component, componentHexIndex) { + + if (color.__state.space === 'HEX') { + + color.__state[component] = math.component_from_hex(color.__state.hex, componentHexIndex); + + } else if (color.__state.space === 'HSV') { + + common.extend(color.__state, math.hsv_to_rgb(color.__state.h, color.__state.s, color.__state.v)); + + } else { + + throw 'Corrupted color state'; + + } + + } + + function recalculateHSV(color) { + + var result = math.rgb_to_hsv(color.r, color.g, color.b); + + common.extend(color.__state, + { + s: result.s, + v: result.v + } + ); + + if (!common.isNaN(result.h)) { + color.__state.h = result.h; + } else if (common.isUndefined(color.__state.h)) { + color.__state.h = 0; + } + + } + + return Color; + +})(dat.color.interpret, +dat.color.math = (function () { + + var tmpComponent; + + return { + + hsv_to_rgb: function(h, s, v) { + + var hi = Math.floor(h / 60) % 6; + + var f = h / 60 - Math.floor(h / 60); + var p = v * (1.0 - s); + var q = v * (1.0 - (f * s)); + var t = v * (1.0 - ((1.0 - f) * s)); + var c = [ + [v, t, p], + [q, v, p], + [p, v, t], + [p, q, v], + [t, p, v], + [v, p, q] + ][hi]; + + return { + r: c[0] * 255, + g: c[1] * 255, + b: c[2] * 255 + }; + + }, + + rgb_to_hsv: function(r, g, b) { + + var min = Math.min(r, g, b), + max = Math.max(r, g, b), + delta = max - min, + h, s; + + if (max != 0) { + s = delta / max; + } else { + return { + h: NaN, + s: 0, + v: 0 + }; + } + + if (r == max) { + h = (g - b) / delta; + } else if (g == max) { + h = 2 + (b - r) / delta; + } else { + h = 4 + (r - g) / delta; + } + h /= 6; + if (h < 0) { + h += 1; + } + + return { + h: h * 360, + s: s, + v: max / 255 + }; + }, + + rgb_to_hex: function(r, g, b) { + var hex = this.hex_with_component(0, 2, r); + hex = this.hex_with_component(hex, 1, g); + hex = this.hex_with_component(hex, 0, b); + return hex; + }, + + component_from_hex: function(hex, componentIndex) { + return (hex >> (componentIndex * 8)) & 0xFF; + }, + + hex_with_component: function(hex, componentIndex, value) { + return value << (tmpComponent = componentIndex * 8) | (hex & ~ (0xFF << tmpComponent)); + } + + } + +})(), +dat.color.toString, +dat.utils.common), +dat.color.interpret, +dat.utils.common), +dat.utils.requestAnimationFrame = (function () { + + /** + * requirejs version of Paul Irish's RequestAnimationFrame + * http://paulirish.com/2011/requestanimationframe-for-smart-animating/ + */ + + return window.webkitRequestAnimationFrame || + window.mozRequestAnimationFrame || + window.oRequestAnimationFrame || + window.msRequestAnimationFrame || + function(callback, element) { + + window.setTimeout(callback, 1000 / 60); + + }; +})(), +dat.dom.CenteredDiv = (function (dom, common) { + + + var CenteredDiv = function() { + + this.backgroundElement = document.createElement('div'); + common.extend(this.backgroundElement.style, { + backgroundColor: 'rgba(0,0,0,0.8)', + top: 0, + left: 0, + display: 'none', + zIndex: '1000', + opacity: 0, + WebkitTransition: 'opacity 0.2s linear' + }); + + dom.makeFullscreen(this.backgroundElement); + this.backgroundElement.style.position = 'fixed'; + + this.domElement = document.createElement('div'); + common.extend(this.domElement.style, { + position: 'fixed', + display: 'none', + zIndex: '1001', + opacity: 0, + WebkitTransition: '-webkit-transform 0.2s ease-out, opacity 0.2s linear' + }); + + + document.body.appendChild(this.backgroundElement); + document.body.appendChild(this.domElement); + + var _this = this; + dom.bind(this.backgroundElement, 'click', function() { + _this.hide(); + }); + + + }; + + CenteredDiv.prototype.show = function() { + + var _this = this; + + + + this.backgroundElement.style.display = 'block'; + + this.domElement.style.display = 'block'; + this.domElement.style.opacity = 0; +// this.domElement.style.top = '52%'; + this.domElement.style.webkitTransform = 'scale(1.1)'; + + this.layout(); + + common.defer(function() { + _this.backgroundElement.style.opacity = 1; + _this.domElement.style.opacity = 1; + _this.domElement.style.webkitTransform = 'scale(1)'; + }); + + }; + + CenteredDiv.prototype.hide = function() { + + var _this = this; + + var hide = function() { + + _this.domElement.style.display = 'none'; + _this.backgroundElement.style.display = 'none'; + + dom.unbind(_this.domElement, 'webkitTransitionEnd', hide); + dom.unbind(_this.domElement, 'transitionend', hide); + dom.unbind(_this.domElement, 'oTransitionEnd', hide); + + }; + + dom.bind(this.domElement, 'webkitTransitionEnd', hide); + dom.bind(this.domElement, 'transitionend', hide); + dom.bind(this.domElement, 'oTransitionEnd', hide); + + this.backgroundElement.style.opacity = 0; +// this.domElement.style.top = '48%'; + this.domElement.style.opacity = 0; + this.domElement.style.webkitTransform = 'scale(1.1)'; + + }; + + CenteredDiv.prototype.layout = function() { + this.domElement.style.left = window.innerWidth/2 - dom.getWidth(this.domElement) / 2 + 'px'; + this.domElement.style.top = window.innerHeight/2 - dom.getHeight(this.domElement) / 2 + 'px'; + }; + + function lockScroll(e) { + console.log(e); + } + + return CenteredDiv; + +})(dat.dom.dom, +dat.utils.common), +dat.dom.dom, +dat.utils.common); + +/***/ }), +/* 28 */ +/***/ (function(module, exports) { + +/** + * dat-gui JavaScript Controller Library + * http://code.google.com/p/dat-gui + * + * Copyright 2011 Data Arts Team, Google Creative Lab + * + * Licensed under the Apache License, Version 2.0 (the "License"); + * you may not use this file except in compliance with the License. + * You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + */ + +/** @namespace */ +var dat = module.exports = dat || {}; + +/** @namespace */ +dat.color = dat.color || {}; + +/** @namespace */ +dat.utils = dat.utils || {}; + +dat.utils.common = (function () { + + var ARR_EACH = Array.prototype.forEach; + var ARR_SLICE = Array.prototype.slice; + + /** + * Band-aid methods for things that should be a lot easier in JavaScript. + * Implementation and structure inspired by underscore.js + * http://documentcloud.github.com/underscore/ + */ + + return { + + BREAK: {}, + + extend: function(target) { + + this.each(ARR_SLICE.call(arguments, 1), function(obj) { + + for (var key in obj) + if (!this.isUndefined(obj[key])) + target[key] = obj[key]; + + }, this); + + return target; + + }, + + defaults: function(target) { + + this.each(ARR_SLICE.call(arguments, 1), function(obj) { + + for (var key in obj) + if (this.isUndefined(target[key])) + target[key] = obj[key]; + + }, this); + + return target; + + }, + + compose: function() { + var toCall = ARR_SLICE.call(arguments); + return function() { + var args = ARR_SLICE.call(arguments); + for (var i = toCall.length -1; i >= 0; i--) { + args = [toCall[i].apply(this, args)]; + } + return args[0]; + } + }, + + each: function(obj, itr, scope) { + + + if (ARR_EACH && obj.forEach === ARR_EACH) { + + obj.forEach(itr, scope); + + } else if (obj.length === obj.length + 0) { // Is number but not NaN + + for (var key = 0, l = obj.length; key < l; key++) + if (key in obj && itr.call(scope, obj[key], key) === this.BREAK) + return; + + } else { + + for (var key in obj) + if (itr.call(scope, obj[key], key) === this.BREAK) + return; + + } + + }, + + defer: function(fnc) { + setTimeout(fnc, 0); + }, + + toArray: function(obj) { + if (obj.toArray) return obj.toArray(); + return ARR_SLICE.call(obj); + }, + + isUndefined: function(obj) { + return obj === undefined; + }, + + isNull: function(obj) { + return obj === null; + }, + + isNaN: function(obj) { + return obj !== obj; + }, + + isArray: Array.isArray || function(obj) { + return obj.constructor === Array; + }, + + isObject: function(obj) { + return obj === Object(obj); + }, + + isNumber: function(obj) { + return obj === obj+0; + }, + + isString: function(obj) { + return obj === obj+''; + }, + + isBoolean: function(obj) { + return obj === false || obj === true; + }, + + isFunction: function(obj) { + return Object.prototype.toString.call(obj) === '[object Function]'; + } + + }; + +})(); + + +dat.color.toString = (function (common) { + + return function(color) { + + if (color.a == 1 || common.isUndefined(color.a)) { + + var s = color.hex.toString(16); + while (s.length < 6) { + s = '0' + s; + } + + return '#' + s; + + } else { + + return 'rgba(' + Math.round(color.r) + ',' + Math.round(color.g) + ',' + Math.round(color.b) + ',' + color.a + ')'; + + } + + } + +})(dat.utils.common); + + +dat.Color = dat.color.Color = (function (interpret, math, toString, common) { + + var Color = function() { + + this.__state = interpret.apply(this, arguments); + + if (this.__state === false) { + throw 'Failed to interpret color arguments'; + } + + this.__state.a = this.__state.a || 1; + + + }; + + Color.COMPONENTS = ['r','g','b','h','s','v','hex','a']; + + common.extend(Color.prototype, { + + toString: function() { + return toString(this); + }, + + toOriginal: function() { + return this.__state.conversion.write(this); + } + + }); + + defineRGBComponent(Color.prototype, 'r', 2); + defineRGBComponent(Color.prototype, 'g', 1); + defineRGBComponent(Color.prototype, 'b', 0); + + defineHSVComponent(Color.prototype, 'h'); + defineHSVComponent(Color.prototype, 's'); + defineHSVComponent(Color.prototype, 'v'); + + Object.defineProperty(Color.prototype, 'a', { + + get: function() { + return this.__state.a; + }, + + set: function(v) { + this.__state.a = v; + } + + }); + + Object.defineProperty(Color.prototype, 'hex', { + + get: function() { + + if (!this.__state.space !== 'HEX') { + this.__state.hex = math.rgb_to_hex(this.r, this.g, this.b); + } + + return this.__state.hex; + + }, + + set: function(v) { + + this.__state.space = 'HEX'; + this.__state.hex = v; + + } + + }); + + function defineRGBComponent(target, component, componentHexIndex) { + + Object.defineProperty(target, component, { + + get: function() { + + if (this.__state.space === 'RGB') { + return this.__state[component]; + } + + recalculateRGB(this, component, componentHexIndex); + + return this.__state[component]; + + }, + + set: function(v) { + + if (this.__state.space !== 'RGB') { + recalculateRGB(this, component, componentHexIndex); + this.__state.space = 'RGB'; + } + + this.__state[component] = v; + + } + + }); + + } + + function defineHSVComponent(target, component) { + + Object.defineProperty(target, component, { + + get: function() { + + if (this.__state.space === 'HSV') + return this.__state[component]; + + recalculateHSV(this); + + return this.__state[component]; + + }, + + set: function(v) { + + if (this.__state.space !== 'HSV') { + recalculateHSV(this); + this.__state.space = 'HSV'; + } + + this.__state[component] = v; + + } + + }); + + } + + function recalculateRGB(color, component, componentHexIndex) { + + if (color.__state.space === 'HEX') { + + color.__state[component] = math.component_from_hex(color.__state.hex, componentHexIndex); + + } else if (color.__state.space === 'HSV') { + + common.extend(color.__state, math.hsv_to_rgb(color.__state.h, color.__state.s, color.__state.v)); + + } else { + + throw 'Corrupted color state'; + + } + + } + + function recalculateHSV(color) { + + var result = math.rgb_to_hsv(color.r, color.g, color.b); + + common.extend(color.__state, + { + s: result.s, + v: result.v + } + ); + + if (!common.isNaN(result.h)) { + color.__state.h = result.h; + } else if (common.isUndefined(color.__state.h)) { + color.__state.h = 0; + } + + } + + return Color; + +})(dat.color.interpret = (function (toString, common) { + + var result, toReturn; + + var interpret = function() { + + toReturn = false; + + var original = arguments.length > 1 ? common.toArray(arguments) : arguments[0]; + + common.each(INTERPRETATIONS, function(family) { + + if (family.litmus(original)) { + + common.each(family.conversions, function(conversion, conversionName) { + + result = conversion.read(original); + + if (toReturn === false && result !== false) { + toReturn = result; + result.conversionName = conversionName; + result.conversion = conversion; + return common.BREAK; + + } + + }); + + return common.BREAK; + + } + + }); + + return toReturn; + + }; + + var INTERPRETATIONS = [ + + // Strings + { + + litmus: common.isString, + + conversions: { + + THREE_CHAR_HEX: { + + read: function(original) { + + var test = original.match(/^#([A-F0-9])([A-F0-9])([A-F0-9])$/i); + if (test === null) return false; + + return { + space: 'HEX', + hex: parseInt( + '0x' + + test[1].toString() + test[1].toString() + + test[2].toString() + test[2].toString() + + test[3].toString() + test[3].toString()) + }; + + }, + + write: toString + + }, + + SIX_CHAR_HEX: { + + read: function(original) { + + var test = original.match(/^#([A-F0-9]{6})$/i); + if (test === null) return false; + + return { + space: 'HEX', + hex: parseInt('0x' + test[1].toString()) + }; + + }, + + write: toString + + }, + + CSS_RGB: { + + read: function(original) { + + var test = original.match(/^rgb\(\s*(.+)\s*,\s*(.+)\s*,\s*(.+)\s*\)/); + if (test === null) return false; + + return { + space: 'RGB', + r: parseFloat(test[1]), + g: parseFloat(test[2]), + b: parseFloat(test[3]) + }; + + }, + + write: toString + + }, + + CSS_RGBA: { + + read: function(original) { + + var test = original.match(/^rgba\(\s*(.+)\s*,\s*(.+)\s*,\s*(.+)\s*\,\s*(.+)\s*\)/); + if (test === null) return false; + + return { + space: 'RGB', + r: parseFloat(test[1]), + g: parseFloat(test[2]), + b: parseFloat(test[3]), + a: parseFloat(test[4]) + }; + + }, + + write: toString + + } + + } + + }, + + // Numbers + { + + litmus: common.isNumber, + + conversions: { + + HEX: { + read: function(original) { + return { + space: 'HEX', + hex: original, + conversionName: 'HEX' + } + }, + + write: function(color) { + return color.hex; + } + } + + } + + }, + + // Arrays + { + + litmus: common.isArray, + + conversions: { + + RGB_ARRAY: { + read: function(original) { + if (original.length != 3) return false; + return { + space: 'RGB', + r: original[0], + g: original[1], + b: original[2] + }; + }, + + write: function(color) { + return [color.r, color.g, color.b]; + } + + }, + + RGBA_ARRAY: { + read: function(original) { + if (original.length != 4) return false; + return { + space: 'RGB', + r: original[0], + g: original[1], + b: original[2], + a: original[3] + }; + }, + + write: function(color) { + return [color.r, color.g, color.b, color.a]; + } + + } + + } + + }, + + // Objects + { + + litmus: common.isObject, + + conversions: { + + RGBA_OBJ: { + read: function(original) { + if (common.isNumber(original.r) && + common.isNumber(original.g) && + common.isNumber(original.b) && + common.isNumber(original.a)) { + return { + space: 'RGB', + r: original.r, + g: original.g, + b: original.b, + a: original.a + } + } + return false; + }, + + write: function(color) { + return { + r: color.r, + g: color.g, + b: color.b, + a: color.a + } + } + }, + + RGB_OBJ: { + read: function(original) { + if (common.isNumber(original.r) && + common.isNumber(original.g) && + common.isNumber(original.b)) { + return { + space: 'RGB', + r: original.r, + g: original.g, + b: original.b + } + } + return false; + }, + + write: function(color) { + return { + r: color.r, + g: color.g, + b: color.b + } + } + }, + + HSVA_OBJ: { + read: function(original) { + if (common.isNumber(original.h) && + common.isNumber(original.s) && + common.isNumber(original.v) && + common.isNumber(original.a)) { + return { + space: 'HSV', + h: original.h, + s: original.s, + v: original.v, + a: original.a + } + } + return false; + }, + + write: function(color) { + return { + h: color.h, + s: color.s, + v: color.v, + a: color.a + } + } + }, + + HSV_OBJ: { + read: function(original) { + if (common.isNumber(original.h) && + common.isNumber(original.s) && + common.isNumber(original.v)) { + return { + space: 'HSV', + h: original.h, + s: original.s, + v: original.v + } + } + return false; + }, + + write: function(color) { + return { + h: color.h, + s: color.s, + v: color.v + } + } + + } + + } + + } + + + ]; + + return interpret; + + +})(dat.color.toString, +dat.utils.common), +dat.color.math = (function () { + + var tmpComponent; + + return { + + hsv_to_rgb: function(h, s, v) { + + var hi = Math.floor(h / 60) % 6; + + var f = h / 60 - Math.floor(h / 60); + var p = v * (1.0 - s); + var q = v * (1.0 - (f * s)); + var t = v * (1.0 - ((1.0 - f) * s)); + var c = [ + [v, t, p], + [q, v, p], + [p, v, t], + [p, q, v], + [t, p, v], + [v, p, q] + ][hi]; + + return { + r: c[0] * 255, + g: c[1] * 255, + b: c[2] * 255 + }; + + }, + + rgb_to_hsv: function(r, g, b) { + + var min = Math.min(r, g, b), + max = Math.max(r, g, b), + delta = max - min, + h, s; + + if (max != 0) { + s = delta / max; + } else { + return { + h: NaN, + s: 0, + v: 0 + }; + } + + if (r == max) { + h = (g - b) / delta; + } else if (g == max) { + h = 2 + (b - r) / delta; + } else { + h = 4 + (r - g) / delta; + } + h /= 6; + if (h < 0) { + h += 1; + } + + return { + h: h * 360, + s: s, + v: max / 255 + }; + }, + + rgb_to_hex: function(r, g, b) { + var hex = this.hex_with_component(0, 2, r); + hex = this.hex_with_component(hex, 1, g); + hex = this.hex_with_component(hex, 0, b); + return hex; + }, + + component_from_hex: function(hex, componentIndex) { + return (hex >> (componentIndex * 8)) & 0xFF; + }, + + hex_with_component: function(hex, componentIndex, value) { + return value << (tmpComponent = componentIndex * 8) | (hex & ~ (0xFF << tmpComponent)); + } + + } + +})(), +dat.color.toString, +dat.utils.common); + +/***/ }), +/* 29 */ +/***/ (function(module, __webpack_exports__, __webpack_require__) { + +"use strict"; +/* harmony import */ var __WEBPACK_IMPORTED_MODULE_0_gl_matrix__ = __webpack_require__(1); +/* harmony import */ var __WEBPACK_IMPORTED_MODULE_1__rendering_gl_Drawable__ = __webpack_require__(8); +/* harmony import */ var __WEBPACK_IMPORTED_MODULE_2__globals__ = __webpack_require__(2); + + + +class Icosphere extends __WEBPACK_IMPORTED_MODULE_1__rendering_gl_Drawable__["a" /* default */] { + constructor(center, radius, subdivisions) { + super(); // Call the constructor of the super class. This is required. + this.radius = radius; + this.subdivisions = subdivisions; + this.center = __WEBPACK_IMPORTED_MODULE_0_gl_matrix__["c" /* vec4 */].fromValues(center[0], center[1], center[2], 1); + } + create() { + const X = 0.525731112119133606; + const Z = 0.850650808352039932; + const N = 0; + let maxIndexCount = 20 * Math.pow(4, this.subdivisions); + let maxVertexCount = 10 * Math.pow(4, this.subdivisions) + 2; + // Create buffers to back geometry data + // Index data will ping pong back and forth between buffer0 and buffer1 during creation + // All data will be in buffer0 at the end + const buffer0 = new ArrayBuffer(maxIndexCount * 3 * Uint32Array.BYTES_PER_ELEMENT + + maxVertexCount * 4 * Float32Array.BYTES_PER_ELEMENT + + maxVertexCount * 4 * Float32Array.BYTES_PER_ELEMENT); + const buffer1 = new ArrayBuffer(maxIndexCount * 3 * Uint32Array.BYTES_PER_ELEMENT); + const buffers = [buffer0, buffer1]; + let b = 0; + const indexByteOffset = 0; + const vertexByteOffset = maxIndexCount * 3 * Uint32Array.BYTES_PER_ELEMENT; + const normalByteOffset = vertexByteOffset; + const positionByteOffset = vertexByteOffset + maxVertexCount * 4 * Float32Array.BYTES_PER_ELEMENT; + // Create 3-uint buffer views into the backing buffer to represent triangles + // The C++ analogy to this would be something like: + // triangles[i] = reinterpret_cast*>(&buffer[offset]); + let triangles = new Array(20); + let nextTriangles = new Array(); + for (let i = 0; i < 20; ++i) { + triangles[i] = new Uint32Array(buffers[b], indexByteOffset + i * 3 * Uint32Array.BYTES_PER_ELEMENT, 3); + } + // Create 3-float buffer views into the backing buffer to represent positions + let vertices = new Array(12); + for (let i = 0; i < 12; ++i) { + vertices[i] = new Float32Array(buffer0, vertexByteOffset + i * 4 * Float32Array.BYTES_PER_ELEMENT, 4); + } + // Initialize normals for a 20-sided icosahedron + vertices[0].set([-X, N, Z, 0]); + vertices[1].set([X, N, Z, 0]); + vertices[2].set([-X, N, -Z, 0]); + vertices[3].set([X, N, -Z, 0]); + vertices[4].set([N, Z, X, 0]); + vertices[5].set([N, Z, -X, 0]); + vertices[6].set([N, -Z, X, 0]); + vertices[7].set([N, -Z, -X, 0]); + vertices[8].set([Z, X, N, 0]); + vertices[9].set([-Z, X, N, 0]); + vertices[10].set([Z, -X, N, 0]); + vertices[11].set([-Z, -X, N, 0]); + // Initialize indices for a 20-sided icosahedron + triangles[0].set([0, 4, 1]); + triangles[1].set([0, 9, 4]); + triangles[2].set([9, 5, 4]); + triangles[3].set([4, 5, 8]); + triangles[4].set([4, 8, 1]); + triangles[5].set([8, 10, 1]); + triangles[6].set([8, 3, 10]); + triangles[7].set([5, 3, 8]); + triangles[8].set([5, 2, 3]); + triangles[9].set([2, 7, 3]); + triangles[10].set([7, 10, 3]); + triangles[11].set([7, 6, 10]); + triangles[12].set([7, 11, 6]); + triangles[13].set([11, 0, 6]); + triangles[14].set([0, 1, 6]); + triangles[15].set([6, 1, 10]); + triangles[16].set([9, 0, 11]); + triangles[17].set([9, 11, 2]); + triangles[18].set([9, 2, 5]); + triangles[19].set([7, 2, 11]); + // This loop subdivides the icosahedron + for (let s = 0; s < this.subdivisions; ++s) { + b = 1 - b; + nextTriangles.length = triangles.length * 4; + let triangleIdx = 0; + // edgeMap maps a pair of vertex indices to a vertex index at their midpoint + // The function `mid` will get that midpoint vertex if it has already been created + // or it will create the vertex and add it to the map + let edgeMap = new Map(); + function mid(v0, v1) { + let key = [v0, v1].sort().join('_'); + if (!edgeMap.has(key)) { + let midpoint = new Float32Array(buffer0, vertexByteOffset + vertices.length * 4 * Float32Array.BYTES_PER_ELEMENT, 4); + __WEBPACK_IMPORTED_MODULE_0_gl_matrix__["c" /* vec4 */].add(midpoint, vertices[v0], vertices[v1]); + __WEBPACK_IMPORTED_MODULE_0_gl_matrix__["c" /* vec4 */].normalize(midpoint, midpoint); + edgeMap.set(key, vertices.length); + vertices.push(midpoint); + } + return edgeMap.get(key); + } + for (let t = 0; t < triangles.length; ++t) { + let v0 = triangles[t][0]; + let v1 = triangles[t][1]; + let v2 = triangles[t][2]; + let v3 = mid(v0, v1); // Get or create a vertex between these two vertices + let v4 = mid(v1, v2); + let v5 = mid(v2, v0); + let t0 = nextTriangles[triangleIdx] = new Uint32Array(buffers[b], indexByteOffset + (triangleIdx++) * 3 * Uint32Array.BYTES_PER_ELEMENT, 3); + let t1 = nextTriangles[triangleIdx] = new Uint32Array(buffers[b], indexByteOffset + (triangleIdx++) * 3 * Uint32Array.BYTES_PER_ELEMENT, 3); + let t2 = nextTriangles[triangleIdx] = new Uint32Array(buffers[b], indexByteOffset + (triangleIdx++) * 3 * Uint32Array.BYTES_PER_ELEMENT, 3); + let t3 = nextTriangles[triangleIdx] = new Uint32Array(buffers[b], indexByteOffset + (triangleIdx++) * 3 * Uint32Array.BYTES_PER_ELEMENT, 3); + let triangleOffset = nextTriangles.length; + t0.set([v0, v3, v5]); + t1.set([v3, v4, v5]); + t2.set([v3, v1, v4]); + t3.set([v5, v4, v2]); + } + // swap buffers + let temp = triangles; + triangles = nextTriangles; + nextTriangles = temp; + } + if (b === 1) { + // if indices did not end up in buffer0, copy them there now + let temp0 = new Uint32Array(buffer0, 0, 3 * triangles.length); + let temp1 = new Uint32Array(buffer1, 0, 3 * triangles.length); + temp0.set(temp1); + } + // Populate one position for each normal + for (let i = 0; i < vertices.length; ++i) { + let pos = new Float32Array(buffer0, positionByteOffset + i * 4 * Float32Array.BYTES_PER_ELEMENT, 4); + __WEBPACK_IMPORTED_MODULE_0_gl_matrix__["c" /* vec4 */].scaleAndAdd(pos, this.center, vertices[i], this.radius); + } + this.buffer = buffer0; + this.indices = new Uint32Array(this.buffer, indexByteOffset, triangles.length * 3); + this.normals = new Float32Array(this.buffer, normalByteOffset, vertices.length * 4); + this.positions = new Float32Array(this.buffer, positionByteOffset, vertices.length * 4); + this.generateIdx(); + this.generatePos(); + this.generateNor(); + this.count = this.indices.length; + __WEBPACK_IMPORTED_MODULE_2__globals__["a" /* gl */].bindBuffer(__WEBPACK_IMPORTED_MODULE_2__globals__["a" /* gl */].ELEMENT_ARRAY_BUFFER, this.bufIdx); + __WEBPACK_IMPORTED_MODULE_2__globals__["a" /* gl */].bufferData(__WEBPACK_IMPORTED_MODULE_2__globals__["a" /* gl */].ELEMENT_ARRAY_BUFFER, this.indices, __WEBPACK_IMPORTED_MODULE_2__globals__["a" /* gl */].STATIC_DRAW); + __WEBPACK_IMPORTED_MODULE_2__globals__["a" /* gl */].bindBuffer(__WEBPACK_IMPORTED_MODULE_2__globals__["a" /* gl */].ARRAY_BUFFER, this.bufNor); + __WEBPACK_IMPORTED_MODULE_2__globals__["a" /* gl */].bufferData(__WEBPACK_IMPORTED_MODULE_2__globals__["a" /* gl */].ARRAY_BUFFER, this.normals, __WEBPACK_IMPORTED_MODULE_2__globals__["a" /* gl */].STATIC_DRAW); + __WEBPACK_IMPORTED_MODULE_2__globals__["a" /* gl */].bindBuffer(__WEBPACK_IMPORTED_MODULE_2__globals__["a" /* gl */].ARRAY_BUFFER, this.bufPos); + __WEBPACK_IMPORTED_MODULE_2__globals__["a" /* gl */].bufferData(__WEBPACK_IMPORTED_MODULE_2__globals__["a" /* gl */].ARRAY_BUFFER, this.positions, __WEBPACK_IMPORTED_MODULE_2__globals__["a" /* gl */].STATIC_DRAW); + console.log(`Created icosphere with ${vertices.length} vertices`); + } +} +; +/* harmony default export */ __webpack_exports__["a"] = (Icosphere); + + +/***/ }), +/* 30 */ +/***/ (function(module, __webpack_exports__, __webpack_require__) { + +"use strict"; +/* harmony import */ var __WEBPACK_IMPORTED_MODULE_0_gl_matrix__ = __webpack_require__(1); +/* harmony import */ var __WEBPACK_IMPORTED_MODULE_1__rendering_gl_Drawable__ = __webpack_require__(8); +/* harmony import */ var __WEBPACK_IMPORTED_MODULE_2__globals__ = __webpack_require__(2); + + + +class Square extends __WEBPACK_IMPORTED_MODULE_1__rendering_gl_Drawable__["a" /* default */] { + constructor(center) { + super(); // Call the constructor of the super class. This is required. + this.center = __WEBPACK_IMPORTED_MODULE_0_gl_matrix__["c" /* vec4 */].fromValues(center[0], center[1], center[2], 1); + } + create() { + this.indices = new Uint32Array([0, 1, 2, + 0, 2, 3]); + this.normals = new Float32Array([0, 0, 1, 0, + 0, 0, 1, 0, + 0, 0, 1, 0, + 0, 0, 1, 0]); + this.positions = new Float32Array([-1, -1, 0, 1, + 1, -1, 0, 1, + 1, 1, 0, 1, + -1, 1, 0, 1]); + this.generateIdx(); + this.generatePos(); + this.generateNor(); + this.count = this.indices.length; + __WEBPACK_IMPORTED_MODULE_2__globals__["a" /* gl */].bindBuffer(__WEBPACK_IMPORTED_MODULE_2__globals__["a" /* gl */].ELEMENT_ARRAY_BUFFER, this.bufIdx); + __WEBPACK_IMPORTED_MODULE_2__globals__["a" /* gl */].bufferData(__WEBPACK_IMPORTED_MODULE_2__globals__["a" /* gl */].ELEMENT_ARRAY_BUFFER, this.indices, __WEBPACK_IMPORTED_MODULE_2__globals__["a" /* gl */].STATIC_DRAW); + __WEBPACK_IMPORTED_MODULE_2__globals__["a" /* gl */].bindBuffer(__WEBPACK_IMPORTED_MODULE_2__globals__["a" /* gl */].ARRAY_BUFFER, this.bufNor); + __WEBPACK_IMPORTED_MODULE_2__globals__["a" /* gl */].bufferData(__WEBPACK_IMPORTED_MODULE_2__globals__["a" /* gl */].ARRAY_BUFFER, this.normals, __WEBPACK_IMPORTED_MODULE_2__globals__["a" /* gl */].STATIC_DRAW); + __WEBPACK_IMPORTED_MODULE_2__globals__["a" /* gl */].bindBuffer(__WEBPACK_IMPORTED_MODULE_2__globals__["a" /* gl */].ARRAY_BUFFER, this.bufPos); + __WEBPACK_IMPORTED_MODULE_2__globals__["a" /* gl */].bufferData(__WEBPACK_IMPORTED_MODULE_2__globals__["a" /* gl */].ARRAY_BUFFER, this.positions, __WEBPACK_IMPORTED_MODULE_2__globals__["a" /* gl */].STATIC_DRAW); + console.log(`Created square`); + } +} +; +/* harmony default export */ __webpack_exports__["a"] = (Square); + + +/***/ }), +/* 31 */ +/***/ (function(module, __webpack_exports__, __webpack_require__) { + +"use strict"; +/* harmony import */ var __WEBPACK_IMPORTED_MODULE_0_gl_matrix__ = __webpack_require__(1); +/* harmony import */ var __WEBPACK_IMPORTED_MODULE_1__globals__ = __webpack_require__(2); + + +// In this file, `gl` is accessible because it is imported above +class OpenGLRenderer { + constructor(canvas) { + this.canvas = canvas; + } + setClearColor(r, g, b, a) { + __WEBPACK_IMPORTED_MODULE_1__globals__["a" /* gl */].clearColor(r, g, b, a); + } + setSize(width, height) { + this.canvas.width = width; + this.canvas.height = height; + } + clear() { + __WEBPACK_IMPORTED_MODULE_1__globals__["a" /* gl */].clear(__WEBPACK_IMPORTED_MODULE_1__globals__["a" /* gl */].COLOR_BUFFER_BIT | __WEBPACK_IMPORTED_MODULE_1__globals__["a" /* gl */].DEPTH_BUFFER_BIT); + } + render(camera, prog, drawables) { + let model = __WEBPACK_IMPORTED_MODULE_0_gl_matrix__["a" /* mat4 */].create(); + let viewProj = __WEBPACK_IMPORTED_MODULE_0_gl_matrix__["a" /* mat4 */].create(); + let color = __WEBPACK_IMPORTED_MODULE_0_gl_matrix__["c" /* vec4 */].fromValues(1, 0, 0, 1); + __WEBPACK_IMPORTED_MODULE_0_gl_matrix__["a" /* mat4 */].identity(model); + __WEBPACK_IMPORTED_MODULE_0_gl_matrix__["a" /* mat4 */].multiply(viewProj, camera.projectionMatrix, camera.viewMatrix); + prog.setModelMatrix(model); + prog.setViewProjMatrix(viewProj); + prog.setGeometryColor(color); + for (let drawable of drawables) { + prog.draw(drawable); + } + } +} +; +/* harmony default export */ __webpack_exports__["a"] = (OpenGLRenderer); + + +/***/ }), +/* 32 */ +/***/ (function(module, __webpack_exports__, __webpack_require__) { + +"use strict"; +/* harmony import */ var __WEBPACK_IMPORTED_MODULE_0_3d_view_controls__ = __webpack_require__(33); +/* harmony import */ var __WEBPACK_IMPORTED_MODULE_0_3d_view_controls___default = __webpack_require__.n(__WEBPACK_IMPORTED_MODULE_0_3d_view_controls__); +/* harmony import */ var __WEBPACK_IMPORTED_MODULE_1_gl_matrix__ = __webpack_require__(1); + + +class Camera { + constructor(position, target) { + this.projectionMatrix = __WEBPACK_IMPORTED_MODULE_1_gl_matrix__["a" /* mat4 */].create(); + this.viewMatrix = __WEBPACK_IMPORTED_MODULE_1_gl_matrix__["a" /* mat4 */].create(); + this.fovy = 45; + this.aspectRatio = 1; + this.near = 0.1; + this.far = 1000; + this.position = __WEBPACK_IMPORTED_MODULE_1_gl_matrix__["b" /* vec3 */].create(); + this.direction = __WEBPACK_IMPORTED_MODULE_1_gl_matrix__["b" /* vec3 */].create(); + this.target = __WEBPACK_IMPORTED_MODULE_1_gl_matrix__["b" /* vec3 */].create(); + this.up = __WEBPACK_IMPORTED_MODULE_1_gl_matrix__["b" /* vec3 */].create(); + this.controls = __WEBPACK_IMPORTED_MODULE_0_3d_view_controls__(document.getElementById('canvas'), { + eye: position, + center: target, + }); + __WEBPACK_IMPORTED_MODULE_1_gl_matrix__["b" /* vec3 */].add(this.target, this.position, this.direction); + __WEBPACK_IMPORTED_MODULE_1_gl_matrix__["a" /* mat4 */].lookAt(this.viewMatrix, this.controls.eye, this.controls.center, this.controls.up); + } + setAspectRatio(aspectRatio) { + this.aspectRatio = aspectRatio; + } + updateProjectionMatrix() { + __WEBPACK_IMPORTED_MODULE_1_gl_matrix__["a" /* mat4 */].perspective(this.projectionMatrix, this.fovy, this.aspectRatio, this.near, this.far); + } + update() { + this.controls.tick(); + __WEBPACK_IMPORTED_MODULE_1_gl_matrix__["b" /* vec3 */].add(this.target, this.position, this.direction); + __WEBPACK_IMPORTED_MODULE_1_gl_matrix__["a" /* mat4 */].lookAt(this.viewMatrix, this.controls.eye, this.controls.center, this.controls.up); + } +} +; +/* harmony default export */ __webpack_exports__["a"] = (Camera); + + +/***/ }), +/* 33 */ +/***/ (function(module, exports, __webpack_require__) { + +"use strict"; + + +module.exports = createCamera + +var now = __webpack_require__(34) +var createView = __webpack_require__(36) +var mouseChange = __webpack_require__(59) +var mouseWheel = __webpack_require__(61) +var mouseOffset = __webpack_require__(64) + +function createCamera(element, options) { + element = element || document.body + options = options || {} + + var limits = [ 0.01, Infinity ] + if('distanceLimits' in options) { + limits[0] = options.distanceLimits[0] + limits[1] = options.distanceLimits[1] + } + if('zoomMin' in options) { + limits[0] = options.zoomMin + } + if('zoomMax' in options) { + limits[1] = options.zoomMax + } + + var view = createView({ + center: options.center || [0,0,0], + up: options.up || [0,1,0], + eye: options.eye || [0,0,10], + mode: options.mode || 'orbit', + distanceLimits: limits + }) + + var pmatrix = [0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0] + var distance = 0.0 + var width = element.clientWidth + var height = element.clientHeight + + var camera = { + view: view, + element: element, + delay: options.delay || 16, + rotateSpeed: options.rotateSpeed || 1, + zoomSpeed: options.zoomSpeed || 1, + translateSpeed: options.translateSpeed || 1, + flipX: !!options.flipX, + flipY: !!options.flipY, + modes: view.modes, + tick: function() { + var t = now() + var delay = this.delay + view.idle(t-delay) + view.flush(t-(100+delay*2)) + var ctime = t - 2 * delay + view.recalcMatrix(ctime) + var allEqual = true + var matrix = view.computedMatrix + for(var i=0; i<16; ++i) { + allEqual = allEqual && (pmatrix[i] === matrix[i]) + pmatrix[i] = matrix[i] + } + var sizeChanged = + element.clientWidth === width && + element.clientHeight === height + width = element.clientWidth + height = element.clientHeight + if(allEqual) { + return !sizeChanged + } + distance = Math.exp(view.computedRadius[0]) + return true + }, + lookAt: function(center, eye, up) { + view.lookAt(view.lastT(), center, eye, up) + }, + rotate: function(pitch, yaw, roll) { + view.rotate(view.lastT(), pitch, yaw, roll) + }, + pan: function(dx, dy, dz) { + view.pan(view.lastT(), dx, dy, dz) + }, + translate: function(dx, dy, dz) { + view.translate(view.lastT(), dx, dy, dz) + } + } + + Object.defineProperties(camera, { + matrix: { + get: function() { + return view.computedMatrix + }, + set: function(mat) { + view.setMatrix(view.lastT(), mat) + return view.computedMatrix + }, + enumerable: true + }, + mode: { + get: function() { + return view.getMode() + }, + set: function(mode) { + view.setMode(mode) + return view.getMode() + }, + enumerable: true + }, + center: { + get: function() { + return view.computedCenter + }, + set: function(ncenter) { + view.lookAt(view.lastT(), ncenter) + return view.computedCenter + }, + enumerable: true + }, + eye: { + get: function() { + return view.computedEye + }, + set: function(neye) { + view.lookAt(view.lastT(), null, neye) + return view.computedEye + }, + enumerable: true + }, + up: { + get: function() { + return view.computedUp + }, + set: function(nup) { + view.lookAt(view.lastT(), null, null, nup) + return view.computedUp + }, + enumerable: true + }, + distance: { + get: function() { + return distance + }, + set: function(d) { + view.setDistance(view.lastT(), d) + return d + }, + enumerable: true + }, + distanceLimits: { + get: function() { + return view.getDistanceLimits(limits) + }, + set: function(v) { + view.setDistanceLimits(v) + return v + }, + enumerable: true + } + }) + + element.addEventListener('contextmenu', function(ev) { + ev.preventDefault() + return false + }) + + var lastX = 0, lastY = 0, lastMods = {shift: false, control: false, alt: false, meta: false} + mouseChange(element, handleInteraction) + + //enable simple touch interactions + element.addEventListener('touchstart', function (ev) { + var xy = mouseOffset(ev.changedTouches[0], element) + handleInteraction(0, xy[0], xy[1], lastMods) + handleInteraction(1, xy[0], xy[1], lastMods) + }) + element.addEventListener('touchmove', function (ev) { + var xy = mouseOffset(ev.changedTouches[0], element) + handleInteraction(1, xy[0], xy[1], lastMods) + }) + element.addEventListener('touchend', function (ev) { + var xy = mouseOffset(ev.changedTouches[0], element) + handleInteraction(0, lastX, lastY, lastMods) + }) + + function handleInteraction (buttons, x, y, mods) { + var scale = 1.0 / element.clientHeight + var dx = scale * (x - lastX) + var dy = scale * (y - lastY) + + var flipX = camera.flipX ? 1 : -1 + var flipY = camera.flipY ? 1 : -1 + + var drot = Math.PI * camera.rotateSpeed + + var t = now() + + if(buttons & 1) { + if(mods.shift) { + view.rotate(t, 0, 0, -dx * drot) + } else { + view.rotate(t, flipX * drot * dx, -flipY * drot * dy, 0) + } + } else if(buttons & 2) { + view.pan(t, -camera.translateSpeed * dx * distance, camera.translateSpeed * dy * distance, 0) + } else if(buttons & 4) { + var kzoom = camera.zoomSpeed * dy / window.innerHeight * (t - view.lastT()) * 50.0 + view.pan(t, 0, 0, distance * (Math.exp(kzoom) - 1)) + } + + lastX = x + lastY = y + lastMods = mods + } + + mouseWheel(element, function(dx, dy, dz) { + var flipX = camera.flipX ? 1 : -1 + var flipY = camera.flipY ? 1 : -1 + var t = now() + if(Math.abs(dx) > Math.abs(dy)) { + view.rotate(t, 0, 0, -dx * flipX * Math.PI * camera.rotateSpeed / window.innerWidth) + } else { + var kzoom = camera.zoomSpeed * flipY * dy / window.innerHeight * (t - view.lastT()) / 100.0 + view.pan(t, 0, 0, distance * (Math.exp(kzoom) - 1)) + } + }, true) + + return camera +} + + +/***/ }), +/* 34 */ +/***/ (function(module, exports, __webpack_require__) { + +/* WEBPACK VAR INJECTION */(function(global) {module.exports = + global.performance && + global.performance.now ? function now() { + return performance.now() + } : Date.now || function now() { + return +new Date + } + +/* WEBPACK VAR INJECTION */}.call(exports, __webpack_require__(35))) + +/***/ }), +/* 35 */ +/***/ (function(module, exports) { + +var g; + +// This works in non-strict mode +g = (function() { + return this; +})(); + +try { + // This works if eval is allowed (see CSP) + g = g || Function("return this")() || (1,eval)("this"); +} catch(e) { + // This works if the window reference is available + if(typeof window === "object") + g = window; +} + +// g can still be undefined, but nothing to do about it... +// We return undefined, instead of nothing here, so it's +// easier to handle this case. if(!global) { ...} + +module.exports = g; + + +/***/ }), +/* 36 */ +/***/ (function(module, exports, __webpack_require__) { + +"use strict"; + + +module.exports = createViewController + +var createTurntable = __webpack_require__(37) +var createOrbit = __webpack_require__(40) +var createMatrix = __webpack_require__(43) + +function ViewController(controllers, mode) { + this._controllerNames = Object.keys(controllers) + this._controllerList = this._controllerNames.map(function(n) { + return controllers[n] + }) + this._mode = mode + this._active = controllers[mode] + if(!this._active) { + this._mode = 'turntable' + this._active = controllers.turntable + } + this.modes = this._controllerNames + this.computedMatrix = this._active.computedMatrix + this.computedEye = this._active.computedEye + this.computedUp = this._active.computedUp + this.computedCenter = this._active.computedCenter + this.computedRadius = this._active.computedRadius +} + +var proto = ViewController.prototype + +var COMMON_METHODS = [ + ['flush', 1], + ['idle', 1], + ['lookAt', 4], + ['rotate', 4], + ['pan', 4], + ['translate', 4], + ['setMatrix', 2], + ['setDistanceLimits', 2], + ['setDistance', 2] +] + +COMMON_METHODS.forEach(function(method) { + var name = method[0] + var argNames = [] + for(var i=0; i Math.max(vy, vz)) { + u[2] = 1 + } else if(vy > Math.max(vx, vz)) { + u[0] = 1 + } else { + u[1] = 1 + } + + var vv = 0 + var uv = 0 + for(var i=0; i<3; ++i ) { + vv += v[i] * v[i] + uv += u[i] * v[i] + } + for(var i=0; i<3; ++i) { + u[i] -= (uv / vv) * v[i] + } + normalize3(u, u) + return u +} + +function TurntableController(zoomMin, zoomMax, center, up, right, radius, theta, phi) { + this.center = filterVector(center) + this.up = filterVector(up) + this.right = filterVector(right) + this.radius = filterVector([radius]) + this.angle = filterVector([theta, phi]) + this.angle.bounds = [[-Infinity,-Math.PI/2], [Infinity,Math.PI/2]] + this.setDistanceLimits(zoomMin, zoomMax) + + this.computedCenter = this.center.curve(0) + this.computedUp = this.up.curve(0) + this.computedRight = this.right.curve(0) + this.computedRadius = this.radius.curve(0) + this.computedAngle = this.angle.curve(0) + this.computedToward = [0,0,0] + this.computedEye = [0,0,0] + this.computedMatrix = new Array(16) + for(var i=0; i<16; ++i) { + this.computedMatrix[i] = 0.5 + } + + this.recalcMatrix(0) +} + +var proto = TurntableController.prototype + +proto.setDistanceLimits = function(minDist, maxDist) { + if(minDist > 0) { + minDist = Math.log(minDist) + } else { + minDist = -Infinity + } + if(maxDist > 0) { + maxDist = Math.log(maxDist) + } else { + maxDist = Infinity + } + maxDist = Math.max(maxDist, minDist) + this.radius.bounds[0][0] = minDist + this.radius.bounds[1][0] = maxDist +} + +proto.getDistanceLimits = function(out) { + var bounds = this.radius.bounds[0] + if(out) { + out[0] = Math.exp(bounds[0][0]) + out[1] = Math.exp(bounds[1][0]) + return out + } + return [ Math.exp(bounds[0][0]), Math.exp(bounds[1][0]) ] +} + +proto.recalcMatrix = function(t) { + //Recompute curves + this.center.curve(t) + this.up.curve(t) + this.right.curve(t) + this.radius.curve(t) + this.angle.curve(t) + + //Compute frame for camera matrix + var up = this.computedUp + var right = this.computedRight + var uu = 0.0 + var ur = 0.0 + for(var i=0; i<3; ++i) { + ur += up[i] * right[i] + uu += up[i] * up[i] + } + var ul = Math.sqrt(uu) + var rr = 0.0 + for(var i=0; i<3; ++i) { + right[i] -= up[i] * ur / uu + rr += right[i] * right[i] + up[i] /= ul + } + var rl = Math.sqrt(rr) + for(var i=0; i<3; ++i) { + right[i] /= rl + } + + //Compute toward vector + var toward = this.computedToward + cross(toward, up, right) + normalize3(toward, toward) + + //Compute angular parameters + var radius = Math.exp(this.computedRadius[0]) + var theta = this.computedAngle[0] + var phi = this.computedAngle[1] + + var ctheta = Math.cos(theta) + var stheta = Math.sin(theta) + var cphi = Math.cos(phi) + var sphi = Math.sin(phi) + + var center = this.computedCenter + + var wx = ctheta * cphi + var wy = stheta * cphi + var wz = sphi + + var sx = -ctheta * sphi + var sy = -stheta * sphi + var sz = cphi + + var eye = this.computedEye + var mat = this.computedMatrix + for(var i=0; i<3; ++i) { + var x = wx * right[i] + wy * toward[i] + wz * up[i] + mat[4*i+1] = sx * right[i] + sy * toward[i] + sz * up[i] + mat[4*i+2] = x + mat[4*i+3] = 0.0 + } + + var ax = mat[1] + var ay = mat[5] + var az = mat[9] + var bx = mat[2] + var by = mat[6] + var bz = mat[10] + var cx = ay * bz - az * by + var cy = az * bx - ax * bz + var cz = ax * by - ay * bx + var cl = len3(cx, cy, cz) + cx /= cl + cy /= cl + cz /= cl + mat[0] = cx + mat[4] = cy + mat[8] = cz + + for(var i=0; i<3; ++i) { + eye[i] = center[i] + mat[2+4*i]*radius + } + + for(var i=0; i<3; ++i) { + var rr = 0.0 + for(var j=0; j<3; ++j) { + rr += mat[i+4*j] * eye[j] + } + mat[12+i] = -rr + } + mat[15] = 1.0 +} + +proto.getMatrix = function(t, result) { + this.recalcMatrix(t) + var mat = this.computedMatrix + if(result) { + for(var i=0; i<16; ++i) { + result[i] = mat[i] + } + return result + } + return mat +} + +var zAxis = [0,0,0] +proto.rotate = function(t, dtheta, dphi, droll) { + this.angle.move(t, dtheta, dphi) + if(droll) { + this.recalcMatrix(t) + + var mat = this.computedMatrix + zAxis[0] = mat[2] + zAxis[1] = mat[6] + zAxis[2] = mat[10] + + var up = this.computedUp + var right = this.computedRight + var toward = this.computedToward + + for(var i=0; i<3; ++i) { + mat[4*i] = up[i] + mat[4*i+1] = right[i] + mat[4*i+2] = toward[i] + } + rotateM(mat, mat, droll, zAxis) + for(var i=0; i<3; ++i) { + up[i] = mat[4*i] + right[i] = mat[4*i+1] + } + + this.up.set(t, up[0], up[1], up[2]) + this.right.set(t, right[0], right[1], right[2]) + } +} + +proto.pan = function(t, dx, dy, dz) { + dx = dx || 0.0 + dy = dy || 0.0 + dz = dz || 0.0 + + this.recalcMatrix(t) + var mat = this.computedMatrix + + var dist = Math.exp(this.computedRadius[0]) + + var ux = mat[1] + var uy = mat[5] + var uz = mat[9] + var ul = len3(ux, uy, uz) + ux /= ul + uy /= ul + uz /= ul + + var rx = mat[0] + var ry = mat[4] + var rz = mat[8] + var ru = rx * ux + ry * uy + rz * uz + rx -= ux * ru + ry -= uy * ru + rz -= uz * ru + var rl = len3(rx, ry, rz) + rx /= rl + ry /= rl + rz /= rl + + var vx = rx * dx + ux * dy + var vy = ry * dx + uy * dy + var vz = rz * dx + uz * dy + this.center.move(t, vx, vy, vz) + + //Update z-component of radius + var radius = Math.exp(this.computedRadius[0]) + radius = Math.max(1e-4, radius + dz) + this.radius.set(t, Math.log(radius)) +} + +proto.translate = function(t, dx, dy, dz) { + this.center.move(t, + dx||0.0, + dy||0.0, + dz||0.0) +} + +//Recenters the coordinate axes +proto.setMatrix = function(t, mat, axes, noSnap) { + + //Get the axes for tare + var ushift = 1 + if(typeof axes === 'number') { + ushift = (axes)|0 + } + if(ushift < 0 || ushift > 3) { + ushift = 1 + } + var vshift = (ushift + 2) % 3 + var fshift = (ushift + 1) % 3 + + //Recompute state for new t value + if(!mat) { + this.recalcMatrix(t) + mat = this.computedMatrix + } + + //Get right and up vectors + var ux = mat[ushift] + var uy = mat[ushift+4] + var uz = mat[ushift+8] + if(!noSnap) { + var ul = len3(ux, uy, uz) + ux /= ul + uy /= ul + uz /= ul + } else { + var ax = Math.abs(ux) + var ay = Math.abs(uy) + var az = Math.abs(uz) + var am = Math.max(ax,ay,az) + if(ax === am) { + ux = (ux < 0) ? -1 : 1 + uy = uz = 0 + } else if(az === am) { + uz = (uz < 0) ? -1 : 1 + ux = uy = 0 + } else { + uy = (uy < 0) ? -1 : 1 + ux = uz = 0 + } + } + + var rx = mat[vshift] + var ry = mat[vshift+4] + var rz = mat[vshift+8] + var ru = rx * ux + ry * uy + rz * uz + rx -= ux * ru + ry -= uy * ru + rz -= uz * ru + var rl = len3(rx, ry, rz) + rx /= rl + ry /= rl + rz /= rl + + var fx = uy * rz - uz * ry + var fy = uz * rx - ux * rz + var fz = ux * ry - uy * rx + var fl = len3(fx, fy, fz) + fx /= fl + fy /= fl + fz /= fl + + this.center.jump(t, ex, ey, ez) + this.radius.idle(t) + this.up.jump(t, ux, uy, uz) + this.right.jump(t, rx, ry, rz) + + var phi, theta + if(ushift === 2) { + var cx = mat[1] + var cy = mat[5] + var cz = mat[9] + var cr = cx * rx + cy * ry + cz * rz + var cf = cx * fx + cy * fy + cz * fz + if(tu < 0) { + phi = -Math.PI/2 + } else { + phi = Math.PI/2 + } + theta = Math.atan2(cf, cr) + } else { + var tx = mat[2] + var ty = mat[6] + var tz = mat[10] + var tu = tx * ux + ty * uy + tz * uz + var tr = tx * rx + ty * ry + tz * rz + var tf = tx * fx + ty * fy + tz * fz + + phi = Math.asin(clamp1(tu)) + theta = Math.atan2(tf, tr) + } + + this.angle.jump(t, theta, phi) + + this.recalcMatrix(t) + var dx = mat[2] + var dy = mat[6] + var dz = mat[10] + + var imat = this.computedMatrix + invert44(imat, mat) + var w = imat[15] + var ex = imat[12] / w + var ey = imat[13] / w + var ez = imat[14] / w + + var gs = Math.exp(this.computedRadius[0]) + this.center.jump(t, ex-dx*gs, ey-dy*gs, ez-dz*gs) +} + +proto.lastT = function() { + return Math.max( + this.center.lastT(), + this.up.lastT(), + this.right.lastT(), + this.radius.lastT(), + this.angle.lastT()) +} + +proto.idle = function(t) { + this.center.idle(t) + this.up.idle(t) + this.right.idle(t) + this.radius.idle(t) + this.angle.idle(t) +} + +proto.flush = function(t) { + this.center.flush(t) + this.up.flush(t) + this.right.flush(t) + this.radius.flush(t) + this.angle.flush(t) +} + +proto.setDistance = function(t, d) { + if(d > 0) { + this.radius.set(t, Math.log(d)) + } +} + +proto.lookAt = function(t, eye, center, up) { + this.recalcMatrix(t) + + eye = eye || this.computedEye + center = center || this.computedCenter + up = up || this.computedUp + + var ux = up[0] + var uy = up[1] + var uz = up[2] + var ul = len3(ux, uy, uz) + if(ul < 1e-6) { + return + } + ux /= ul + uy /= ul + uz /= ul + + var tx = eye[0] - center[0] + var ty = eye[1] - center[1] + var tz = eye[2] - center[2] + var tl = len3(tx, ty, tz) + if(tl < 1e-6) { + return + } + tx /= tl + ty /= tl + tz /= tl + + var right = this.computedRight + var rx = right[0] + var ry = right[1] + var rz = right[2] + var ru = ux*rx + uy*ry + uz*rz + rx -= ru * ux + ry -= ru * uy + rz -= ru * uz + var rl = len3(rx, ry, rz) + + if(rl < 0.01) { + rx = uy * tz - uz * ty + ry = uz * tx - ux * tz + rz = ux * ty - uy * tx + rl = len3(rx, ry, rz) + if(rl < 1e-6) { + return + } + } + rx /= rl + ry /= rl + rz /= rl + + this.up.set(t, ux, uy, uz) + this.right.set(t, rx, ry, rz) + this.center.set(t, center[0], center[1], center[2]) + this.radius.set(t, Math.log(tl)) + + var fx = uy * rz - uz * ry + var fy = uz * rx - ux * rz + var fz = ux * ry - uy * rx + var fl = len3(fx, fy, fz) + fx /= fl + fy /= fl + fz /= fl + + var tu = ux*tx + uy*ty + uz*tz + var tr = rx*tx + ry*ty + rz*tz + var tf = fx*tx + fy*ty + fz*tz + + var phi = Math.asin(clamp1(tu)) + var theta = Math.atan2(tf, tr) + + var angleState = this.angle._state + var lastTheta = angleState[angleState.length-1] + var lastPhi = angleState[angleState.length-2] + lastTheta = lastTheta % (2.0 * Math.PI) + var dp = Math.abs(lastTheta + 2.0 * Math.PI - theta) + var d0 = Math.abs(lastTheta - theta) + var dn = Math.abs(lastTheta - 2.0 * Math.PI - theta) + if(dp < d0) { + lastTheta += 2.0 * Math.PI + } + if(dn < d0) { + lastTheta -= 2.0 * Math.PI + } + + this.angle.jump(this.angle.lastT(), lastTheta, lastPhi) + this.angle.set(t, theta, phi) +} + +function createTurntableController(options) { + options = options || {} + + var center = options.center || [0,0,0] + var up = options.up || [0,1,0] + var right = options.right || findOrthoPair(up) + var radius = options.radius || 1.0 + var theta = options.theta || 0.0 + var phi = options.phi || 0.0 + + center = [].slice.call(center, 0, 3) + + up = [].slice.call(up, 0, 3) + normalize3(up, up) + + right = [].slice.call(right, 0, 3) + normalize3(right, right) + + if('eye' in options) { + var eye = options.eye + var toward = [ + eye[0]-center[0], + eye[1]-center[1], + eye[2]-center[2] + ] + cross(right, toward, up) + if(len3(right[0], right[1], right[2]) < 1e-6) { + right = findOrthoPair(up) + } else { + normalize3(right, right) + } + + radius = len3(toward[0], toward[1], toward[2]) + + var ut = dot3(up, toward) / radius + var rt = dot3(right, toward) / radius + phi = Math.acos(ut) + theta = Math.acos(rt) + } + + //Use logarithmic coordinates for radius + radius = Math.log(radius) + + //Return the controller + return new TurntableController( + options.zoomMin, + options.zoomMax, + center, + up, + right, + radius, + theta, + phi) +} + +/***/ }), +/* 38 */ +/***/ (function(module, exports, __webpack_require__) { + +"use strict"; + + +function dcubicHermite(p0, v0, p1, v1, t, f) { + var dh00 = 6*t*t-6*t, + dh10 = 3*t*t-4*t + 1, + dh01 = -6*t*t+6*t, + dh11 = 3*t*t-2*t + if(p0.length) { + if(!f) { + f = new Array(p0.length) + } + for(var i=p0.length-1; i>=0; --i) { + f[i] = dh00*p0[i] + dh10*v0[i] + dh01*p1[i] + dh11*v1[i] + } + return f + } + return dh00*p0 + dh10*v0 + dh01*p1[i] + dh11*v1 +} + +function cubicHermite(p0, v0, p1, v1, t, f) { + var ti = (t-1), t2 = t*t, ti2 = ti*ti, + h00 = (1+2*t)*ti2, + h10 = t*ti2, + h01 = t2*(3-2*t), + h11 = t2*ti + if(p0.length) { + if(!f) { + f = new Array(p0.length) + } + for(var i=p0.length-1; i>=0; --i) { + f[i] = h00*p0[i] + h10*v0[i] + h01*p1[i] + h11*v1[i] + } + return f + } + return h00*p0 + h10*v0 + h01*p1 + h11*v1 +} + +module.exports = cubicHermite +module.exports.derivative = dcubicHermite + +/***/ }), +/* 39 */ +/***/ (function(module, exports) { + +module.exports = rotate; + +/** + * Rotates a mat4 by the given angle + * + * @param {mat4} out the receiving matrix + * @param {mat4} a the matrix to rotate + * @param {Number} rad the angle to rotate the matrix by + * @param {vec3} axis the axis to rotate around + * @returns {mat4} out + */ +function rotate(out, a, rad, axis) { + var x = axis[0], y = axis[1], z = axis[2], + len = Math.sqrt(x * x + y * y + z * z), + s, c, t, + a00, a01, a02, a03, + a10, a11, a12, a13, + a20, a21, a22, a23, + b00, b01, b02, + b10, b11, b12, + b20, b21, b22; + + if (Math.abs(len) < 0.000001) { return null; } + + len = 1 / len; + x *= len; + y *= len; + z *= len; + + s = Math.sin(rad); + c = Math.cos(rad); + t = 1 - c; + + a00 = a[0]; a01 = a[1]; a02 = a[2]; a03 = a[3]; + a10 = a[4]; a11 = a[5]; a12 = a[6]; a13 = a[7]; + a20 = a[8]; a21 = a[9]; a22 = a[10]; a23 = a[11]; + + // Construct the elements of the rotation matrix + b00 = x * x * t + c; b01 = y * x * t + z * s; b02 = z * x * t - y * s; + b10 = x * y * t - z * s; b11 = y * y * t + c; b12 = z * y * t + x * s; + b20 = x * z * t + y * s; b21 = y * z * t - x * s; b22 = z * z * t + c; + + // Perform rotation-specific matrix multiplication + out[0] = a00 * b00 + a10 * b01 + a20 * b02; + out[1] = a01 * b00 + a11 * b01 + a21 * b02; + out[2] = a02 * b00 + a12 * b01 + a22 * b02; + out[3] = a03 * b00 + a13 * b01 + a23 * b02; + out[4] = a00 * b10 + a10 * b11 + a20 * b12; + out[5] = a01 * b10 + a11 * b11 + a21 * b12; + out[6] = a02 * b10 + a12 * b11 + a22 * b12; + out[7] = a03 * b10 + a13 * b11 + a23 * b12; + out[8] = a00 * b20 + a10 * b21 + a20 * b22; + out[9] = a01 * b20 + a11 * b21 + a21 * b22; + out[10] = a02 * b20 + a12 * b21 + a22 * b22; + out[11] = a03 * b20 + a13 * b21 + a23 * b22; + + if (a !== out) { // If the source and destination differ, copy the unchanged last row + out[12] = a[12]; + out[13] = a[13]; + out[14] = a[14]; + out[15] = a[15]; + } + return out; +}; + +/***/ }), +/* 40 */ +/***/ (function(module, exports, __webpack_require__) { + +"use strict"; + + +module.exports = createOrbitController + +var filterVector = __webpack_require__(9) +var lookAt = __webpack_require__(13) +var mat4FromQuat = __webpack_require__(41) +var invert44 = __webpack_require__(3) +var quatFromFrame = __webpack_require__(42) + +function len3(x,y,z) { + return Math.sqrt(Math.pow(x,2) + Math.pow(y,2) + Math.pow(z,2)) +} + +function len4(w,x,y,z) { + return Math.sqrt(Math.pow(w,2) + Math.pow(x,2) + Math.pow(y,2) + Math.pow(z,2)) +} + +function normalize4(out, a) { + var ax = a[0] + var ay = a[1] + var az = a[2] + var aw = a[3] + var al = len4(ax, ay, az, aw) + if(al > 1e-6) { + out[0] = ax/al + out[1] = ay/al + out[2] = az/al + out[3] = aw/al + } else { + out[0] = out[1] = out[2] = 0.0 + out[3] = 1.0 + } +} + +function OrbitCameraController(initQuat, initCenter, initRadius) { + this.radius = filterVector([initRadius]) + this.center = filterVector(initCenter) + this.rotation = filterVector(initQuat) + + this.computedRadius = this.radius.curve(0) + this.computedCenter = this.center.curve(0) + this.computedRotation = this.rotation.curve(0) + this.computedUp = [0.1,0,0] + this.computedEye = [0.1,0,0] + this.computedMatrix = [0.1,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0] + + this.recalcMatrix(0) +} + +var proto = OrbitCameraController.prototype + +proto.lastT = function() { + return Math.max( + this.radius.lastT(), + this.center.lastT(), + this.rotation.lastT()) +} + +proto.recalcMatrix = function(t) { + this.radius.curve(t) + this.center.curve(t) + this.rotation.curve(t) + + var quat = this.computedRotation + normalize4(quat, quat) + + var mat = this.computedMatrix + mat4FromQuat(mat, quat) + + var center = this.computedCenter + var eye = this.computedEye + var up = this.computedUp + var radius = Math.exp(this.computedRadius[0]) + + eye[0] = center[0] + radius * mat[2] + eye[1] = center[1] + radius * mat[6] + eye[2] = center[2] + radius * mat[10] + up[0] = mat[1] + up[1] = mat[5] + up[2] = mat[9] + + for(var i=0; i<3; ++i) { + var rr = 0.0 + for(var j=0; j<3; ++j) { + rr += mat[i+4*j] * eye[j] + } + mat[12+i] = -rr + } +} + +proto.getMatrix = function(t, result) { + this.recalcMatrix(t) + var m = this.computedMatrix + if(result) { + for(var i=0; i<16; ++i) { + result[i] = m[i] + } + return result + } + return m +} + +proto.idle = function(t) { + this.center.idle(t) + this.radius.idle(t) + this.rotation.idle(t) +} + +proto.flush = function(t) { + this.center.flush(t) + this.radius.flush(t) + this.rotation.flush(t) +} + +proto.pan = function(t, dx, dy, dz) { + dx = dx || 0.0 + dy = dy || 0.0 + dz = dz || 0.0 + + this.recalcMatrix(t) + var mat = this.computedMatrix + + var ux = mat[1] + var uy = mat[5] + var uz = mat[9] + var ul = len3(ux, uy, uz) + ux /= ul + uy /= ul + uz /= ul + + var rx = mat[0] + var ry = mat[4] + var rz = mat[8] + var ru = rx * ux + ry * uy + rz * uz + rx -= ux * ru + ry -= uy * ru + rz -= uz * ru + var rl = len3(rx, ry, rz) + rx /= rl + ry /= rl + rz /= rl + + var fx = mat[2] + var fy = mat[6] + var fz = mat[10] + var fu = fx * ux + fy * uy + fz * uz + var fr = fx * rx + fy * ry + fz * rz + fx -= fu * ux + fr * rx + fy -= fu * uy + fr * ry + fz -= fu * uz + fr * rz + var fl = len3(fx, fy, fz) + fx /= fl + fy /= fl + fz /= fl + + var vx = rx * dx + ux * dy + var vy = ry * dx + uy * dy + var vz = rz * dx + uz * dy + + this.center.move(t, vx, vy, vz) + + //Update z-component of radius + var radius = Math.exp(this.computedRadius[0]) + radius = Math.max(1e-4, radius + dz) + this.radius.set(t, Math.log(radius)) +} + +proto.rotate = function(t, dx, dy, dz) { + this.recalcMatrix(t) + + dx = dx||0.0 + dy = dy||0.0 + + var mat = this.computedMatrix + + var rx = mat[0] + var ry = mat[4] + var rz = mat[8] + + var ux = mat[1] + var uy = mat[5] + var uz = mat[9] + + var fx = mat[2] + var fy = mat[6] + var fz = mat[10] + + var qx = dx * rx + dy * ux + var qy = dx * ry + dy * uy + var qz = dx * rz + dy * uz + + var bx = -(fy * qz - fz * qy) + var by = -(fz * qx - fx * qz) + var bz = -(fx * qy - fy * qx) + var bw = Math.sqrt(Math.max(0.0, 1.0 - Math.pow(bx,2) - Math.pow(by,2) - Math.pow(bz,2))) + var bl = len4(bx, by, bz, bw) + if(bl > 1e-6) { + bx /= bl + by /= bl + bz /= bl + bw /= bl + } else { + bx = by = bz = 0.0 + bw = 1.0 + } + + var rotation = this.computedRotation + var ax = rotation[0] + var ay = rotation[1] + var az = rotation[2] + var aw = rotation[3] + + var cx = ax*bw + aw*bx + ay*bz - az*by + var cy = ay*bw + aw*by + az*bx - ax*bz + var cz = az*bw + aw*bz + ax*by - ay*bx + var cw = aw*bw - ax*bx - ay*by - az*bz + + //Apply roll + if(dz) { + bx = fx + by = fy + bz = fz + var s = Math.sin(dz) / len3(bx, by, bz) + bx *= s + by *= s + bz *= s + bw = Math.cos(dx) + cx = cx*bw + cw*bx + cy*bz - cz*by + cy = cy*bw + cw*by + cz*bx - cx*bz + cz = cz*bw + cw*bz + cx*by - cy*bx + cw = cw*bw - cx*bx - cy*by - cz*bz + } + + var cl = len4(cx, cy, cz, cw) + if(cl > 1e-6) { + cx /= cl + cy /= cl + cz /= cl + cw /= cl + } else { + cx = cy = cz = 0.0 + cw = 1.0 + } + + this.rotation.set(t, cx, cy, cz, cw) +} + +proto.lookAt = function(t, eye, center, up) { + this.recalcMatrix(t) + + center = center || this.computedCenter + eye = eye || this.computedEye + up = up || this.computedUp + + var mat = this.computedMatrix + lookAt(mat, eye, center, up) + + var rotation = this.computedRotation + quatFromFrame(rotation, + mat[0], mat[1], mat[2], + mat[4], mat[5], mat[6], + mat[8], mat[9], mat[10]) + normalize4(rotation, rotation) + this.rotation.set(t, rotation[0], rotation[1], rotation[2], rotation[3]) + + var fl = 0.0 + for(var i=0; i<3; ++i) { + fl += Math.pow(center[i] - eye[i], 2) + } + this.radius.set(t, 0.5 * Math.log(Math.max(fl, 1e-6))) + + this.center.set(t, center[0], center[1], center[2]) +} + +proto.translate = function(t, dx, dy, dz) { + this.center.move(t, + dx||0.0, + dy||0.0, + dz||0.0) +} + +proto.setMatrix = function(t, matrix) { + + var rotation = this.computedRotation + quatFromFrame(rotation, + matrix[0], matrix[1], matrix[2], + matrix[4], matrix[5], matrix[6], + matrix[8], matrix[9], matrix[10]) + normalize4(rotation, rotation) + this.rotation.set(t, rotation[0], rotation[1], rotation[2], rotation[3]) + + var mat = this.computedMatrix + invert44(mat, matrix) + var w = mat[15] + if(Math.abs(w) > 1e-6) { + var cx = mat[12]/w + var cy = mat[13]/w + var cz = mat[14]/w + + this.recalcMatrix(t) + var r = Math.exp(this.computedRadius[0]) + this.center.set(t, cx-mat[2]*r, cy-mat[6]*r, cz-mat[10]*r) + this.radius.idle(t) + } else { + this.center.idle(t) + this.radius.idle(t) + } +} + +proto.setDistance = function(t, d) { + if(d > 0) { + this.radius.set(t, Math.log(d)) + } +} + +proto.setDistanceLimits = function(lo, hi) { + if(lo > 0) { + lo = Math.log(lo) + } else { + lo = -Infinity + } + if(hi > 0) { + hi = Math.log(hi) + } else { + hi = Infinity + } + hi = Math.max(hi, lo) + this.radius.bounds[0][0] = lo + this.radius.bounds[1][0] = hi +} + +proto.getDistanceLimits = function(out) { + var bounds = this.radius.bounds + if(out) { + out[0] = Math.exp(bounds[0][0]) + out[1] = Math.exp(bounds[1][0]) + return out + } + return [ Math.exp(bounds[0][0]), Math.exp(bounds[1][0]) ] +} + +proto.toJSON = function() { + this.recalcMatrix(this.lastT()) + return { + center: this.computedCenter.slice(), + rotation: this.computedRotation.slice(), + distance: Math.log(this.computedRadius[0]), + zoomMin: this.radius.bounds[0][0], + zoomMax: this.radius.bounds[1][0] + } +} + +proto.fromJSON = function(options) { + var t = this.lastT() + var c = options.center + if(c) { + this.center.set(t, c[0], c[1], c[2]) + } + var r = options.rotation + if(r) { + this.rotation.set(t, r[0], r[1], r[2], r[3]) + } + var d = options.distance + if(d && d > 0) { + this.radius.set(t, Math.log(d)) + } + this.setDistanceLimits(options.zoomMin, options.zoomMax) +} + +function createOrbitController(options) { + options = options || {} + var center = options.center || [0,0,0] + var rotation = options.rotation || [0,0,0,1] + var radius = options.radius || 1.0 + + center = [].slice.call(center, 0, 3) + rotation = [].slice.call(rotation, 0, 4) + normalize4(rotation, rotation) + + var result = new OrbitCameraController( + rotation, + center, + Math.log(radius)) + + result.setDistanceLimits(options.zoomMin, options.zoomMax) + + if('eye' in options || 'up' in options) { + result.lookAt(0, options.eye, options.center, options.up) + } + + return result +} + +/***/ }), +/* 41 */ +/***/ (function(module, exports) { + +module.exports = fromQuat; + +/** + * Creates a matrix from a quaternion rotation. + * + * @param {mat4} out mat4 receiving operation result + * @param {quat4} q Rotation quaternion + * @returns {mat4} out + */ +function fromQuat(out, q) { + var x = q[0], y = q[1], z = q[2], w = q[3], + x2 = x + x, + y2 = y + y, + z2 = z + z, + + xx = x * x2, + yx = y * x2, + yy = y * y2, + zx = z * x2, + zy = z * y2, + zz = z * z2, + wx = w * x2, + wy = w * y2, + wz = w * z2; + + out[0] = 1 - yy - zz; + out[1] = yx + wz; + out[2] = zx - wy; + out[3] = 0; + + out[4] = yx - wz; + out[5] = 1 - xx - zz; + out[6] = zy + wx; + out[7] = 0; + + out[8] = zx + wy; + out[9] = zy - wx; + out[10] = 1 - xx - yy; + out[11] = 0; + + out[12] = 0; + out[13] = 0; + out[14] = 0; + out[15] = 1; + + return out; +}; + +/***/ }), +/* 42 */ +/***/ (function(module, exports, __webpack_require__) { + +"use strict"; + + +module.exports = quatFromFrame + +function quatFromFrame( + out, + rx, ry, rz, + ux, uy, uz, + fx, fy, fz) { + var tr = rx + uy + fz + if(l > 0) { + var l = Math.sqrt(tr + 1.0) + out[0] = 0.5 * (uz - fy) / l + out[1] = 0.5 * (fx - rz) / l + out[2] = 0.5 * (ry - uy) / l + out[3] = 0.5 * l + } else { + var tf = Math.max(rx, uy, fz) + var l = Math.sqrt(2 * tf - tr + 1.0) + if(rx >= tf) { + //x y z order + out[0] = 0.5 * l + out[1] = 0.5 * (ux + ry) / l + out[2] = 0.5 * (fx + rz) / l + out[3] = 0.5 * (uz - fy) / l + } else if(uy >= tf) { + //y z x order + out[0] = 0.5 * (ry + ux) / l + out[1] = 0.5 * l + out[2] = 0.5 * (fy + uz) / l + out[3] = 0.5 * (fx - rz) / l + } else { + //z x y order + out[0] = 0.5 * (rz + fx) / l + out[1] = 0.5 * (uz + fy) / l + out[2] = 0.5 * l + out[3] = 0.5 * (ry - ux) / l + } + } + return out +} + +/***/ }), +/* 43 */ +/***/ (function(module, exports, __webpack_require__) { + +"use strict"; + + +var bsearch = __webpack_require__(10) +var m4interp = __webpack_require__(44) +var invert44 = __webpack_require__(3) +var rotateX = __webpack_require__(56) +var rotateY = __webpack_require__(57) +var rotateZ = __webpack_require__(58) +var lookAt = __webpack_require__(13) +var translate = __webpack_require__(15) +var scale = __webpack_require__(17) +var normalize = __webpack_require__(4) + +var DEFAULT_CENTER = [0,0,0] + +module.exports = createMatrixCameraController + +function MatrixCameraController(initialMatrix) { + this._components = initialMatrix.slice() + this._time = [0] + this.prevMatrix = initialMatrix.slice() + this.nextMatrix = initialMatrix.slice() + this.computedMatrix = initialMatrix.slice() + this.computedInverse = initialMatrix.slice() + this.computedEye = [0,0,0] + this.computedUp = [0,0,0] + this.computedCenter = [0,0,0] + this.computedRadius = [0] + this._limits = [-Infinity, Infinity] +} + +var proto = MatrixCameraController.prototype + +proto.recalcMatrix = function(t) { + var time = this._time + var tidx = bsearch.le(time, t) + var mat = this.computedMatrix + if(tidx < 0) { + return + } + var comps = this._components + if(tidx === time.length-1) { + var ptr = 16*tidx + for(var i=0; i<16; ++i) { + mat[i] = comps[ptr++] + } + } else { + var dt = (time[tidx+1] - time[tidx]) + var ptr = 16*tidx + var prev = this.prevMatrix + var allEqual = true + for(var i=0; i<16; ++i) { + prev[i] = comps[ptr++] + } + var next = this.nextMatrix + for(var i=0; i<16; ++i) { + next[i] = comps[ptr++] + allEqual = allEqual && (prev[i] === next[i]) + } + if(dt < 1e-6 || allEqual) { + for(var i=0; i<16; ++i) { + mat[i] = prev[i] + } + } else { + m4interp(mat, prev, next, (t - time[tidx])/dt) + } + } + + var up = this.computedUp + up[0] = mat[1] + up[1] = mat[5] + up[2] = mat[9] + normalize(up, up) + + var imat = this.computedInverse + invert44(imat, mat) + var eye = this.computedEye + var w = imat[15] + eye[0] = imat[12]/w + eye[1] = imat[13]/w + eye[2] = imat[14]/w + + var center = this.computedCenter + var radius = Math.exp(this.computedRadius[0]) + for(var i=0; i<3; ++i) { + center[i] = eye[i] - mat[2+4*i] * radius + } +} + +proto.idle = function(t) { + if(t < this.lastT()) { + return + } + var mc = this._components + var ptr = mc.length-16 + for(var i=0; i<16; ++i) { + mc.push(mc[ptr++]) + } + this._time.push(t) +} + +proto.flush = function(t) { + var idx = bsearch.gt(this._time, t) - 2 + if(idx < 0) { + return + } + this._time.splice(0, idx) + this._components.splice(0, 16*idx) +} + +proto.lastT = function() { + return this._time[this._time.length-1] +} + +proto.lookAt = function(t, eye, center, up) { + this.recalcMatrix(t) + eye = eye || this.computedEye + center = center || DEFAULT_CENTER + up = up || this.computedUp + this.setMatrix(t, lookAt(this.computedMatrix, eye, center, up)) + var d2 = 0.0 + for(var i=0; i<3; ++i) { + d2 += Math.pow(center[i] - eye[i], 2) + } + d2 = Math.log(Math.sqrt(d2)) + this.computedRadius[0] = d2 +} + +proto.rotate = function(t, yaw, pitch, roll) { + this.recalcMatrix(t) + var mat = this.computedInverse + if(yaw) rotateY(mat, mat, yaw) + if(pitch) rotateX(mat, mat, pitch) + if(roll) rotateZ(mat, mat, roll) + this.setMatrix(t, invert44(this.computedMatrix, mat)) +} + +var tvec = [0,0,0] + +proto.pan = function(t, dx, dy, dz) { + tvec[0] = -(dx || 0.0) + tvec[1] = -(dy || 0.0) + tvec[2] = -(dz || 0.0) + this.recalcMatrix(t) + var mat = this.computedInverse + translate(mat, mat, tvec) + this.setMatrix(t, invert44(mat, mat)) +} + +proto.translate = function(t, dx, dy, dz) { + tvec[0] = dx || 0.0 + tvec[1] = dy || 0.0 + tvec[2] = dz || 0.0 + this.recalcMatrix(t) + var mat = this.computedMatrix + translate(mat, mat, tvec) + this.setMatrix(t, mat) +} + +proto.setMatrix = function(t, mat) { + if(t < this.lastT()) { + return + } + this._time.push(t) + for(var i=0; i<16; ++i) { + this._components.push(mat[i]) + } +} + +proto.setDistance = function(t, d) { + this.computedRadius[0] = d +} + +proto.setDistanceLimits = function(a,b) { + var lim = this._limits + lim[0] = a + lim[1] = b +} + +proto.getDistanceLimits = function(out) { + var lim = this._limits + if(out) { + out[0] = lim[0] + out[1] = lim[1] + return out + } + return lim +} + +function createMatrixCameraController(options) { + options = options || {} + var matrix = options.matrix || + [1,0,0,0, + 0,1,0,0, + 0,0,1,0, + 0,0,0,1] + return new MatrixCameraController(matrix) +} + + +/***/ }), +/* 44 */ +/***/ (function(module, exports, __webpack_require__) { + +var lerp = __webpack_require__(45) + +var recompose = __webpack_require__(46) +var decompose = __webpack_require__(49) +var determinant = __webpack_require__(18) +var slerp = __webpack_require__(54) + +var state0 = state() +var state1 = state() +var tmp = state() + +module.exports = interpolate +function interpolate(out, start, end, alpha) { + if (determinant(start) === 0 || determinant(end) === 0) + return false + + //decompose the start and end matrices into individual components + var r0 = decompose(start, state0.translate, state0.scale, state0.skew, state0.perspective, state0.quaternion) + var r1 = decompose(end, state1.translate, state1.scale, state1.skew, state1.perspective, state1.quaternion) + if (!r0 || !r1) + return false + + + //now lerp/slerp the start and end components into a temporary lerp(tmptranslate, state0.translate, state1.translate, alpha) + lerp(tmp.translate, state0.translate, state1.translate, alpha) + lerp(tmp.skew, state0.skew, state1.skew, alpha) + lerp(tmp.scale, state0.scale, state1.scale, alpha) + lerp(tmp.perspective, state0.perspective, state1.perspective, alpha) + slerp(tmp.quaternion, state0.quaternion, state1.quaternion, alpha) + + //and recompose into our 'out' matrix + recompose(out, tmp.translate, tmp.scale, tmp.skew, tmp.perspective, tmp.quaternion) + return true +} + +function state() { + return { + translate: vec3(), + scale: vec3(1), + skew: vec3(), + perspective: vec4(), + quaternion: vec4() + } +} + +function vec3(n) { + return [n||0,n||0,n||0] +} + +function vec4() { + return [0,0,0,1] +} + +/***/ }), +/* 45 */ +/***/ (function(module, exports) { + +module.exports = lerp; + +/** + * Performs a linear interpolation between two vec3's + * + * @param {vec3} out the receiving vector + * @param {vec3} a the first operand + * @param {vec3} b the second operand + * @param {Number} t interpolation amount between the two inputs + * @returns {vec3} out + */ +function lerp(out, a, b, t) { + var ax = a[0], + ay = a[1], + az = a[2] + out[0] = ax + t * (b[0] - ax) + out[1] = ay + t * (b[1] - ay) + out[2] = az + t * (b[2] - az) + return out +} + +/***/ }), +/* 46 */ +/***/ (function(module, exports, __webpack_require__) { + +/* +Input: translation ; a 3 component vector + scale ; a 3 component vector + skew ; skew factors XY,XZ,YZ represented as a 3 component vector + perspective ; a 4 component vector + quaternion ; a 4 component vector +Output: matrix ; a 4x4 matrix + +From: http://www.w3.org/TR/css3-transforms/#recomposing-to-a-3d-matrix +*/ + +var mat4 = { + identity: __webpack_require__(14), + translate: __webpack_require__(15), + multiply: __webpack_require__(47), + create: __webpack_require__(16), + scale: __webpack_require__(17), + fromRotationTranslation: __webpack_require__(48) +} + +var rotationMatrix = mat4.create() +var temp = mat4.create() + +module.exports = function recomposeMat4(matrix, translation, scale, skew, perspective, quaternion) { + mat4.identity(matrix) + + //apply translation & rotation + mat4.fromRotationTranslation(matrix, quaternion, translation) + + //apply perspective + matrix[3] = perspective[0] + matrix[7] = perspective[1] + matrix[11] = perspective[2] + matrix[15] = perspective[3] + + // apply skew + // temp is a identity 4x4 matrix initially + mat4.identity(temp) + + if (skew[2] !== 0) { + temp[9] = skew[2] + mat4.multiply(matrix, matrix, temp) + } + + if (skew[1] !== 0) { + temp[9] = 0 + temp[8] = skew[1] + mat4.multiply(matrix, matrix, temp) + } + + if (skew[0] !== 0) { + temp[8] = 0 + temp[4] = skew[0] + mat4.multiply(matrix, matrix, temp) + } + + //apply scale + mat4.scale(matrix, matrix, scale) + return matrix +} + +/***/ }), +/* 47 */ +/***/ (function(module, exports) { + +module.exports = multiply; + +/** + * Multiplies two mat4's + * + * @param {mat4} out the receiving matrix + * @param {mat4} a the first operand + * @param {mat4} b the second operand + * @returns {mat4} out + */ +function multiply(out, a, b) { + var a00 = a[0], a01 = a[1], a02 = a[2], a03 = a[3], + a10 = a[4], a11 = a[5], a12 = a[6], a13 = a[7], + a20 = a[8], a21 = a[9], a22 = a[10], a23 = a[11], + a30 = a[12], a31 = a[13], a32 = a[14], a33 = a[15]; + + // Cache only the current line of the second matrix + var b0 = b[0], b1 = b[1], b2 = b[2], b3 = b[3]; + out[0] = b0*a00 + b1*a10 + b2*a20 + b3*a30; + out[1] = b0*a01 + b1*a11 + b2*a21 + b3*a31; + out[2] = b0*a02 + b1*a12 + b2*a22 + b3*a32; + out[3] = b0*a03 + b1*a13 + b2*a23 + b3*a33; + + b0 = b[4]; b1 = b[5]; b2 = b[6]; b3 = b[7]; + out[4] = b0*a00 + b1*a10 + b2*a20 + b3*a30; + out[5] = b0*a01 + b1*a11 + b2*a21 + b3*a31; + out[6] = b0*a02 + b1*a12 + b2*a22 + b3*a32; + out[7] = b0*a03 + b1*a13 + b2*a23 + b3*a33; + + b0 = b[8]; b1 = b[9]; b2 = b[10]; b3 = b[11]; + out[8] = b0*a00 + b1*a10 + b2*a20 + b3*a30; + out[9] = b0*a01 + b1*a11 + b2*a21 + b3*a31; + out[10] = b0*a02 + b1*a12 + b2*a22 + b3*a32; + out[11] = b0*a03 + b1*a13 + b2*a23 + b3*a33; + + b0 = b[12]; b1 = b[13]; b2 = b[14]; b3 = b[15]; + out[12] = b0*a00 + b1*a10 + b2*a20 + b3*a30; + out[13] = b0*a01 + b1*a11 + b2*a21 + b3*a31; + out[14] = b0*a02 + b1*a12 + b2*a22 + b3*a32; + out[15] = b0*a03 + b1*a13 + b2*a23 + b3*a33; + return out; +}; + +/***/ }), +/* 48 */ +/***/ (function(module, exports) { + +module.exports = fromRotationTranslation; + +/** + * Creates a matrix from a quaternion rotation and vector translation + * This is equivalent to (but much faster than): + * + * mat4.identity(dest); + * mat4.translate(dest, vec); + * var quatMat = mat4.create(); + * quat4.toMat4(quat, quatMat); + * mat4.multiply(dest, quatMat); + * + * @param {mat4} out mat4 receiving operation result + * @param {quat4} q Rotation quaternion + * @param {vec3} v Translation vector + * @returns {mat4} out + */ +function fromRotationTranslation(out, q, v) { + // Quaternion math + var x = q[0], y = q[1], z = q[2], w = q[3], + x2 = x + x, + y2 = y + y, + z2 = z + z, + + xx = x * x2, + xy = x * y2, + xz = x * z2, + yy = y * y2, + yz = y * z2, + zz = z * z2, + wx = w * x2, + wy = w * y2, + wz = w * z2; + + out[0] = 1 - (yy + zz); + out[1] = xy + wz; + out[2] = xz - wy; + out[3] = 0; + out[4] = xy - wz; + out[5] = 1 - (xx + zz); + out[6] = yz + wx; + out[7] = 0; + out[8] = xz + wy; + out[9] = yz - wx; + out[10] = 1 - (xx + yy); + out[11] = 0; + out[12] = v[0]; + out[13] = v[1]; + out[14] = v[2]; + out[15] = 1; + + return out; +}; + +/***/ }), +/* 49 */ +/***/ (function(module, exports, __webpack_require__) { + +/*jshint unused:true*/ +/* +Input: matrix ; a 4x4 matrix +Output: translation ; a 3 component vector + scale ; a 3 component vector + skew ; skew factors XY,XZ,YZ represented as a 3 component vector + perspective ; a 4 component vector + quaternion ; a 4 component vector +Returns false if the matrix cannot be decomposed, true if it can + + +References: +https://github.com/kamicane/matrix3d/blob/master/lib/Matrix3d.js +https://github.com/ChromiumWebApps/chromium/blob/master/ui/gfx/transform_util.cc +http://www.w3.org/TR/css3-transforms/#decomposing-a-3d-matrix +*/ + +var normalize = __webpack_require__(50) + +var create = __webpack_require__(16) +var clone = __webpack_require__(51) +var determinant = __webpack_require__(18) +var invert = __webpack_require__(3) +var transpose = __webpack_require__(52) +var vec3 = { + length: __webpack_require__(53), + normalize: __webpack_require__(4), + dot: __webpack_require__(12), + cross: __webpack_require__(11) +} + +var tmp = create() +var perspectiveMatrix = create() +var tmpVec4 = [0, 0, 0, 0] +var row = [ [0,0,0], [0,0,0], [0,0,0] ] +var pdum3 = [0,0,0] + +module.exports = function decomposeMat4(matrix, translation, scale, skew, perspective, quaternion) { + if (!translation) translation = [0,0,0] + if (!scale) scale = [0,0,0] + if (!skew) skew = [0,0,0] + if (!perspective) perspective = [0,0,0,1] + if (!quaternion) quaternion = [0,0,0,1] + + //normalize, if not possible then bail out early + if (!normalize(tmp, matrix)) + return false + + // perspectiveMatrix is used to solve for perspective, but it also provides + // an easy way to test for singularity of the upper 3x3 component. + clone(perspectiveMatrix, tmp) + + perspectiveMatrix[3] = 0 + perspectiveMatrix[7] = 0 + perspectiveMatrix[11] = 0 + perspectiveMatrix[15] = 1 + + // If the perspectiveMatrix is not invertible, we are also unable to + // decompose, so we'll bail early. Constant taken from SkMatrix44::invert. + if (Math.abs(determinant(perspectiveMatrix) < 1e-8)) + return false + + var a03 = tmp[3], a13 = tmp[7], a23 = tmp[11], + a30 = tmp[12], a31 = tmp[13], a32 = tmp[14], a33 = tmp[15] + + // First, isolate perspective. + if (a03 !== 0 || a13 !== 0 || a23 !== 0) { + tmpVec4[0] = a03 + tmpVec4[1] = a13 + tmpVec4[2] = a23 + tmpVec4[3] = a33 + + // Solve the equation by inverting perspectiveMatrix and multiplying + // rightHandSide by the inverse. + // resuing the perspectiveMatrix here since it's no longer needed + var ret = invert(perspectiveMatrix, perspectiveMatrix) + if (!ret) return false + transpose(perspectiveMatrix, perspectiveMatrix) + + //multiply by transposed inverse perspective matrix, into perspective vec4 + vec4multMat4(perspective, tmpVec4, perspectiveMatrix) + } else { + //no perspective + perspective[0] = perspective[1] = perspective[2] = 0 + perspective[3] = 1 + } + + // Next take care of translation + translation[0] = a30 + translation[1] = a31 + translation[2] = a32 + + // Now get scale and shear. 'row' is a 3 element array of 3 component vectors + mat3from4(row, tmp) + + // Compute X scale factor and normalize first row. + scale[0] = vec3.length(row[0]) + vec3.normalize(row[0], row[0]) + + // Compute XY shear factor and make 2nd row orthogonal to 1st. + skew[0] = vec3.dot(row[0], row[1]) + combine(row[1], row[1], row[0], 1.0, -skew[0]) + + // Now, compute Y scale and normalize 2nd row. + scale[1] = vec3.length(row[1]) + vec3.normalize(row[1], row[1]) + skew[0] /= scale[1] + + // Compute XZ and YZ shears, orthogonalize 3rd row + skew[1] = vec3.dot(row[0], row[2]) + combine(row[2], row[2], row[0], 1.0, -skew[1]) + skew[2] = vec3.dot(row[1], row[2]) + combine(row[2], row[2], row[1], 1.0, -skew[2]) + + // Next, get Z scale and normalize 3rd row. + scale[2] = vec3.length(row[2]) + vec3.normalize(row[2], row[2]) + skew[1] /= scale[2] + skew[2] /= scale[2] + + + // At this point, the matrix (in rows) is orthonormal. + // Check for a coordinate system flip. If the determinant + // is -1, then negate the matrix and the scaling factors. + vec3.cross(pdum3, row[1], row[2]) + if (vec3.dot(row[0], pdum3) < 0) { + for (var i = 0; i < 3; i++) { + scale[i] *= -1; + row[i][0] *= -1 + row[i][1] *= -1 + row[i][2] *= -1 + } + } + + // Now, get the rotations out + quaternion[0] = 0.5 * Math.sqrt(Math.max(1 + row[0][0] - row[1][1] - row[2][2], 0)) + quaternion[1] = 0.5 * Math.sqrt(Math.max(1 - row[0][0] + row[1][1] - row[2][2], 0)) + quaternion[2] = 0.5 * Math.sqrt(Math.max(1 - row[0][0] - row[1][1] + row[2][2], 0)) + quaternion[3] = 0.5 * Math.sqrt(Math.max(1 + row[0][0] + row[1][1] + row[2][2], 0)) + + if (row[2][1] > row[1][2]) + quaternion[0] = -quaternion[0] + if (row[0][2] > row[2][0]) + quaternion[1] = -quaternion[1] + if (row[1][0] > row[0][1]) + quaternion[2] = -quaternion[2] + return true +} + +//will be replaced by gl-vec4 eventually +function vec4multMat4(out, a, m) { + var x = a[0], y = a[1], z = a[2], w = a[3]; + out[0] = m[0] * x + m[4] * y + m[8] * z + m[12] * w; + out[1] = m[1] * x + m[5] * y + m[9] * z + m[13] * w; + out[2] = m[2] * x + m[6] * y + m[10] * z + m[14] * w; + out[3] = m[3] * x + m[7] * y + m[11] * z + m[15] * w; + return out; +} + +//gets upper-left of a 4x4 matrix into a 3x3 of vectors +function mat3from4(out, mat4x4) { + out[0][0] = mat4x4[0] + out[0][1] = mat4x4[1] + out[0][2] = mat4x4[2] + + out[1][0] = mat4x4[4] + out[1][1] = mat4x4[5] + out[1][2] = mat4x4[6] + + out[2][0] = mat4x4[8] + out[2][1] = mat4x4[9] + out[2][2] = mat4x4[10] +} + +function combine(out, a, b, scale1, scale2) { + out[0] = a[0] * scale1 + b[0] * scale2 + out[1] = a[1] * scale1 + b[1] * scale2 + out[2] = a[2] * scale1 + b[2] * scale2 +} + +/***/ }), +/* 50 */ +/***/ (function(module, exports) { + +module.exports = function normalize(out, mat) { + var m44 = mat[15] + // Cannot normalize. + if (m44 === 0) + return false + var scale = 1 / m44 + for (var i=0; i<16; i++) + out[i] = mat[i] * scale + return true +} + +/***/ }), +/* 51 */ +/***/ (function(module, exports) { + +module.exports = clone; + +/** + * Creates a new mat4 initialized with values from an existing matrix + * + * @param {mat4} a matrix to clone + * @returns {mat4} a new 4x4 matrix + */ +function clone(a) { + var out = new Float32Array(16); + out[0] = a[0]; + out[1] = a[1]; + out[2] = a[2]; + out[3] = a[3]; + out[4] = a[4]; + out[5] = a[5]; + out[6] = a[6]; + out[7] = a[7]; + out[8] = a[8]; + out[9] = a[9]; + out[10] = a[10]; + out[11] = a[11]; + out[12] = a[12]; + out[13] = a[13]; + out[14] = a[14]; + out[15] = a[15]; + return out; +}; + +/***/ }), +/* 52 */ +/***/ (function(module, exports) { + +module.exports = transpose; + +/** + * Transpose the values of a mat4 + * + * @param {mat4} out the receiving matrix + * @param {mat4} a the source matrix + * @returns {mat4} out + */ +function transpose(out, a) { + // If we are transposing ourselves we can skip a few steps but have to cache some values + if (out === a) { + var a01 = a[1], a02 = a[2], a03 = a[3], + a12 = a[6], a13 = a[7], + a23 = a[11]; + + out[1] = a[4]; + out[2] = a[8]; + out[3] = a[12]; + out[4] = a01; + out[6] = a[9]; + out[7] = a[13]; + out[8] = a02; + out[9] = a12; + out[11] = a[14]; + out[12] = a03; + out[13] = a13; + out[14] = a23; + } else { + out[0] = a[0]; + out[1] = a[4]; + out[2] = a[8]; + out[3] = a[12]; + out[4] = a[1]; + out[5] = a[5]; + out[6] = a[9]; + out[7] = a[13]; + out[8] = a[2]; + out[9] = a[6]; + out[10] = a[10]; + out[11] = a[14]; + out[12] = a[3]; + out[13] = a[7]; + out[14] = a[11]; + out[15] = a[15]; + } + + return out; +}; + +/***/ }), +/* 53 */ +/***/ (function(module, exports) { + +module.exports = length; + +/** + * Calculates the length of a vec3 + * + * @param {vec3} a vector to calculate length of + * @returns {Number} length of a + */ +function length(a) { + var x = a[0], + y = a[1], + z = a[2] + return Math.sqrt(x*x + y*y + z*z) +} + +/***/ }), +/* 54 */ +/***/ (function(module, exports, __webpack_require__) { + +module.exports = __webpack_require__(55) + +/***/ }), +/* 55 */ +/***/ (function(module, exports) { + +module.exports = slerp + +/** + * Performs a spherical linear interpolation between two quat + * + * @param {quat} out the receiving quaternion + * @param {quat} a the first operand + * @param {quat} b the second operand + * @param {Number} t interpolation amount between the two inputs + * @returns {quat} out + */ +function slerp (out, a, b, t) { + // benchmarks: + // http://jsperf.com/quaternion-slerp-implementations + + var ax = a[0], ay = a[1], az = a[2], aw = a[3], + bx = b[0], by = b[1], bz = b[2], bw = b[3] + + var omega, cosom, sinom, scale0, scale1 + + // calc cosine + cosom = ax * bx + ay * by + az * bz + aw * bw + // adjust signs (if necessary) + if (cosom < 0.0) { + cosom = -cosom + bx = -bx + by = -by + bz = -bz + bw = -bw + } + // calculate coefficients + if ((1.0 - cosom) > 0.000001) { + // standard case (slerp) + omega = Math.acos(cosom) + sinom = Math.sin(omega) + scale0 = Math.sin((1.0 - t) * omega) / sinom + scale1 = Math.sin(t * omega) / sinom + } else { + // "from" and "to" quaternions are very close + // ... so we can do a linear interpolation + scale0 = 1.0 - t + scale1 = t + } + // calculate final values + out[0] = scale0 * ax + scale1 * bx + out[1] = scale0 * ay + scale1 * by + out[2] = scale0 * az + scale1 * bz + out[3] = scale0 * aw + scale1 * bw + + return out +} + + +/***/ }), +/* 56 */ +/***/ (function(module, exports) { + +module.exports = rotateX; + +/** + * Rotates a matrix by the given angle around the X axis + * + * @param {mat4} out the receiving matrix + * @param {mat4} a the matrix to rotate + * @param {Number} rad the angle to rotate the matrix by + * @returns {mat4} out + */ +function rotateX(out, a, rad) { + var s = Math.sin(rad), + c = Math.cos(rad), + a10 = a[4], + a11 = a[5], + a12 = a[6], + a13 = a[7], + a20 = a[8], + a21 = a[9], + a22 = a[10], + a23 = a[11]; + + if (a !== out) { // If the source and destination differ, copy the unchanged rows + out[0] = a[0]; + out[1] = a[1]; + out[2] = a[2]; + out[3] = a[3]; + out[12] = a[12]; + out[13] = a[13]; + out[14] = a[14]; + out[15] = a[15]; + } + + // Perform axis-specific matrix multiplication + out[4] = a10 * c + a20 * s; + out[5] = a11 * c + a21 * s; + out[6] = a12 * c + a22 * s; + out[7] = a13 * c + a23 * s; + out[8] = a20 * c - a10 * s; + out[9] = a21 * c - a11 * s; + out[10] = a22 * c - a12 * s; + out[11] = a23 * c - a13 * s; + return out; +}; + +/***/ }), +/* 57 */ +/***/ (function(module, exports) { + +module.exports = rotateY; + +/** + * Rotates a matrix by the given angle around the Y axis + * + * @param {mat4} out the receiving matrix + * @param {mat4} a the matrix to rotate + * @param {Number} rad the angle to rotate the matrix by + * @returns {mat4} out + */ +function rotateY(out, a, rad) { + var s = Math.sin(rad), + c = Math.cos(rad), + a00 = a[0], + a01 = a[1], + a02 = a[2], + a03 = a[3], + a20 = a[8], + a21 = a[9], + a22 = a[10], + a23 = a[11]; + + if (a !== out) { // If the source and destination differ, copy the unchanged rows + out[4] = a[4]; + out[5] = a[5]; + out[6] = a[6]; + out[7] = a[7]; + out[12] = a[12]; + out[13] = a[13]; + out[14] = a[14]; + out[15] = a[15]; + } + + // Perform axis-specific matrix multiplication + out[0] = a00 * c - a20 * s; + out[1] = a01 * c - a21 * s; + out[2] = a02 * c - a22 * s; + out[3] = a03 * c - a23 * s; + out[8] = a00 * s + a20 * c; + out[9] = a01 * s + a21 * c; + out[10] = a02 * s + a22 * c; + out[11] = a03 * s + a23 * c; + return out; +}; + +/***/ }), +/* 58 */ +/***/ (function(module, exports) { + +module.exports = rotateZ; + +/** + * Rotates a matrix by the given angle around the Z axis + * + * @param {mat4} out the receiving matrix + * @param {mat4} a the matrix to rotate + * @param {Number} rad the angle to rotate the matrix by + * @returns {mat4} out + */ +function rotateZ(out, a, rad) { + var s = Math.sin(rad), + c = Math.cos(rad), + a00 = a[0], + a01 = a[1], + a02 = a[2], + a03 = a[3], + a10 = a[4], + a11 = a[5], + a12 = a[6], + a13 = a[7]; + + if (a !== out) { // If the source and destination differ, copy the unchanged last row + out[8] = a[8]; + out[9] = a[9]; + out[10] = a[10]; + out[11] = a[11]; + out[12] = a[12]; + out[13] = a[13]; + out[14] = a[14]; + out[15] = a[15]; + } + + // Perform axis-specific matrix multiplication + out[0] = a00 * c + a10 * s; + out[1] = a01 * c + a11 * s; + out[2] = a02 * c + a12 * s; + out[3] = a03 * c + a13 * s; + out[4] = a10 * c - a00 * s; + out[5] = a11 * c - a01 * s; + out[6] = a12 * c - a02 * s; + out[7] = a13 * c - a03 * s; + return out; +}; + +/***/ }), +/* 59 */ +/***/ (function(module, exports, __webpack_require__) { + +"use strict"; + + +module.exports = mouseListen + +var mouse = __webpack_require__(60) + +function mouseListen (element, callback) { + if (!callback) { + callback = element + element = window + } + + var buttonState = 0 + var x = 0 + var y = 0 + var mods = { + shift: false, + alt: false, + control: false, + meta: false + } + var attached = false + + function updateMods (ev) { + var changed = false + if ('altKey' in ev) { + changed = changed || ev.altKey !== mods.alt + mods.alt = !!ev.altKey + } + if ('shiftKey' in ev) { + changed = changed || ev.shiftKey !== mods.shift + mods.shift = !!ev.shiftKey + } + if ('ctrlKey' in ev) { + changed = changed || ev.ctrlKey !== mods.control + mods.control = !!ev.ctrlKey + } + if ('metaKey' in ev) { + changed = changed || ev.metaKey !== mods.meta + mods.meta = !!ev.metaKey + } + return changed + } + + function handleEvent (nextButtons, ev) { + var nextX = mouse.x(ev) + var nextY = mouse.y(ev) + if ('buttons' in ev) { + nextButtons = ev.buttons | 0 + } + if (nextButtons !== buttonState || + nextX !== x || + nextY !== y || + updateMods(ev)) { + buttonState = nextButtons | 0 + x = nextX || 0 + y = nextY || 0 + callback && callback(buttonState, x, y, mods) + } + } + + function clearState (ev) { + handleEvent(0, ev) + } + + function handleBlur () { + if (buttonState || + x || + y || + mods.shift || + mods.alt || + mods.meta || + mods.control) { + x = y = 0 + buttonState = 0 + mods.shift = mods.alt = mods.control = mods.meta = false + callback && callback(0, 0, 0, mods) + } + } + + function handleMods (ev) { + if (updateMods(ev)) { + callback && callback(buttonState, x, y, mods) + } + } + + function handleMouseMove (ev) { + if (mouse.buttons(ev) === 0) { + handleEvent(0, ev) + } else { + handleEvent(buttonState, ev) + } + } + + function handleMouseDown (ev) { + handleEvent(buttonState | mouse.buttons(ev), ev) + } + + function handleMouseUp (ev) { + handleEvent(buttonState & ~mouse.buttons(ev), ev) + } + + function attachListeners () { + if (attached) { + return + } + attached = true + + element.addEventListener('mousemove', handleMouseMove) + + element.addEventListener('mousedown', handleMouseDown) + + element.addEventListener('mouseup', handleMouseUp) + + element.addEventListener('mouseleave', clearState) + element.addEventListener('mouseenter', clearState) + element.addEventListener('mouseout', clearState) + element.addEventListener('mouseover', clearState) + + element.addEventListener('blur', handleBlur) + + element.addEventListener('keyup', handleMods) + element.addEventListener('keydown', handleMods) + element.addEventListener('keypress', handleMods) + + if (element !== window) { + window.addEventListener('blur', handleBlur) + + window.addEventListener('keyup', handleMods) + window.addEventListener('keydown', handleMods) + window.addEventListener('keypress', handleMods) + } + } + + function detachListeners () { + if (!attached) { + return + } + attached = false + + element.removeEventListener('mousemove', handleMouseMove) + + element.removeEventListener('mousedown', handleMouseDown) + + element.removeEventListener('mouseup', handleMouseUp) + + element.removeEventListener('mouseleave', clearState) + element.removeEventListener('mouseenter', clearState) + element.removeEventListener('mouseout', clearState) + element.removeEventListener('mouseover', clearState) + + element.removeEventListener('blur', handleBlur) + + element.removeEventListener('keyup', handleMods) + element.removeEventListener('keydown', handleMods) + element.removeEventListener('keypress', handleMods) + + if (element !== window) { + window.removeEventListener('blur', handleBlur) + + window.removeEventListener('keyup', handleMods) + window.removeEventListener('keydown', handleMods) + window.removeEventListener('keypress', handleMods) + } + } + + // Attach listeners + attachListeners() + + var result = { + element: element + } + + Object.defineProperties(result, { + enabled: { + get: function () { return attached }, + set: function (f) { + if (f) { + attachListeners() + } else { + detachListeners() + } + }, + enumerable: true + }, + buttons: { + get: function () { return buttonState }, + enumerable: true + }, + x: { + get: function () { return x }, + enumerable: true + }, + y: { + get: function () { return y }, + enumerable: true + }, + mods: { + get: function () { return mods }, + enumerable: true + } + }) + + return result +} + + +/***/ }), +/* 60 */ +/***/ (function(module, exports, __webpack_require__) { + +"use strict"; + + +function mouseButtons(ev) { + if(typeof ev === 'object') { + if('buttons' in ev) { + return ev.buttons + } else if('which' in ev) { + var b = ev.which + if(b === 2) { + return 4 + } else if(b === 3) { + return 2 + } else if(b > 0) { + return 1<<(b-1) + } + } else if('button' in ev) { + var b = ev.button + if(b === 1) { + return 4 + } else if(b === 2) { + return 2 + } else if(b >= 0) { + return 1< 0) {\n //TODO: evaluate use of glm_invsqrt here?\n len = 1 / Math.sqrt(len)\n out[0] = a[0] * len\n out[1] = a[1] * len\n out[2] = a[2] * len\n }\n return out\n}\n\n\n//////////////////\n// WEBPACK FOOTER\n// ./node_modules/gl-vec3/normalize.js\n// module id = 4\n// module chunks = 0","/* Copyright (c) 2015, Brandon Jones, Colin MacKenzie IV.\n\nPermission is hereby granted, free of charge, to any person obtaining a copy\nof this software and associated documentation files (the \"Software\"), to deal\nin the Software without restriction, including without limitation the rights\nto use, copy, modify, merge, publish, distribute, sublicense, and/or sell\ncopies of the Software, and to permit persons to whom the Software is\nfurnished to do so, subject to the following conditions:\n\nThe above copyright notice and this permission notice shall be included in\nall copies or substantial portions of the Software.\n\nTHE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\nIMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\nFITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE\nAUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\nLIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,\nOUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN\nTHE SOFTWARE. */\n\nimport * as glMatrix from \"./common\";\n\n/**\n * 3x3 Matrix\n * @module mat3\n */\n\n/**\n * Creates a new identity mat3\n *\n * @returns {mat3} a new 3x3 matrix\n */\nexport function create() {\n let out = new glMatrix.ARRAY_TYPE(9);\n out[0] = 1;\n out[1] = 0;\n out[2] = 0;\n out[3] = 0;\n out[4] = 1;\n out[5] = 0;\n out[6] = 0;\n out[7] = 0;\n out[8] = 1;\n return out;\n}\n\n/**\n * Copies the upper-left 3x3 values into the given mat3.\n *\n * @param {mat3} out the receiving 3x3 matrix\n * @param {mat4} a the source 4x4 matrix\n * @returns {mat3} out\n */\nexport function fromMat4(out, a) {\n out[0] = a[0];\n out[1] = a[1];\n out[2] = a[2];\n out[3] = a[4];\n out[4] = a[5];\n out[5] = a[6];\n out[6] = a[8];\n out[7] = a[9];\n out[8] = a[10];\n return out;\n}\n\n/**\n * Creates a new mat3 initialized with values from an existing matrix\n *\n * @param {mat3} a matrix to clone\n * @returns {mat3} a new 3x3 matrix\n */\nexport function clone(a) {\n let out = new glMatrix.ARRAY_TYPE(9);\n out[0] = a[0];\n out[1] = a[1];\n out[2] = a[2];\n out[3] = a[3];\n out[4] = a[4];\n out[5] = a[5];\n out[6] = a[6];\n out[7] = a[7];\n out[8] = a[8];\n return out;\n}\n\n/**\n * Copy the values from one mat3 to another\n *\n * @param {mat3} out the receiving matrix\n * @param {mat3} a the source matrix\n * @returns {mat3} out\n */\nexport function copy(out, a) {\n out[0] = a[0];\n out[1] = a[1];\n out[2] = a[2];\n out[3] = a[3];\n out[4] = a[4];\n out[5] = a[5];\n out[6] = a[6];\n out[7] = a[7];\n out[8] = a[8];\n return out;\n}\n\n/**\n * Create a new mat3 with the given values\n *\n * @param {Number} m00 Component in column 0, row 0 position (index 0)\n * @param {Number} m01 Component in column 0, row 1 position (index 1)\n * @param {Number} m02 Component in column 0, row 2 position (index 2)\n * @param {Number} m10 Component in column 1, row 0 position (index 3)\n * @param {Number} m11 Component in column 1, row 1 position (index 4)\n * @param {Number} m12 Component in column 1, row 2 position (index 5)\n * @param {Number} m20 Component in column 2, row 0 position (index 6)\n * @param {Number} m21 Component in column 2, row 1 position (index 7)\n * @param {Number} m22 Component in column 2, row 2 position (index 8)\n * @returns {mat3} A new mat3\n */\nexport function fromValues(m00, m01, m02, m10, m11, m12, m20, m21, m22) {\n let out = new glMatrix.ARRAY_TYPE(9);\n out[0] = m00;\n out[1] = m01;\n out[2] = m02;\n out[3] = m10;\n out[4] = m11;\n out[5] = m12;\n out[6] = m20;\n out[7] = m21;\n out[8] = m22;\n return out;\n}\n\n/**\n * Set the components of a mat3 to the given values\n *\n * @param {mat3} out the receiving matrix\n * @param {Number} m00 Component in column 0, row 0 position (index 0)\n * @param {Number} m01 Component in column 0, row 1 position (index 1)\n * @param {Number} m02 Component in column 0, row 2 position (index 2)\n * @param {Number} m10 Component in column 1, row 0 position (index 3)\n * @param {Number} m11 Component in column 1, row 1 position (index 4)\n * @param {Number} m12 Component in column 1, row 2 position (index 5)\n * @param {Number} m20 Component in column 2, row 0 position (index 6)\n * @param {Number} m21 Component in column 2, row 1 position (index 7)\n * @param {Number} m22 Component in column 2, row 2 position (index 8)\n * @returns {mat3} out\n */\nexport function set(out, m00, m01, m02, m10, m11, m12, m20, m21, m22) {\n out[0] = m00;\n out[1] = m01;\n out[2] = m02;\n out[3] = m10;\n out[4] = m11;\n out[5] = m12;\n out[6] = m20;\n out[7] = m21;\n out[8] = m22;\n return out;\n}\n\n/**\n * Set a mat3 to the identity matrix\n *\n * @param {mat3} out the receiving matrix\n * @returns {mat3} out\n */\nexport function identity(out) {\n out[0] = 1;\n out[1] = 0;\n out[2] = 0;\n out[3] = 0;\n out[4] = 1;\n out[5] = 0;\n out[6] = 0;\n out[7] = 0;\n out[8] = 1;\n return out;\n}\n\n/**\n * Transpose the values of a mat3\n *\n * @param {mat3} out the receiving matrix\n * @param {mat3} a the source matrix\n * @returns {mat3} out\n */\nexport function transpose(out, a) {\n // If we are transposing ourselves we can skip a few steps but have to cache some values\n if (out === a) {\n let a01 = a[1], a02 = a[2], a12 = a[5];\n out[1] = a[3];\n out[2] = a[6];\n out[3] = a01;\n out[5] = a[7];\n out[6] = a02;\n out[7] = a12;\n } else {\n out[0] = a[0];\n out[1] = a[3];\n out[2] = a[6];\n out[3] = a[1];\n out[4] = a[4];\n out[5] = a[7];\n out[6] = a[2];\n out[7] = a[5];\n out[8] = a[8];\n }\n\n return out;\n}\n\n/**\n * Inverts a mat3\n *\n * @param {mat3} out the receiving matrix\n * @param {mat3} a the source matrix\n * @returns {mat3} out\n */\nexport function invert(out, a) {\n let a00 = a[0], a01 = a[1], a02 = a[2];\n let a10 = a[3], a11 = a[4], a12 = a[5];\n let a20 = a[6], a21 = a[7], a22 = a[8];\n\n let b01 = a22 * a11 - a12 * a21;\n let b11 = -a22 * a10 + a12 * a20;\n let b21 = a21 * a10 - a11 * a20;\n\n // Calculate the determinant\n let det = a00 * b01 + a01 * b11 + a02 * b21;\n\n if (!det) {\n return null;\n }\n det = 1.0 / det;\n\n out[0] = b01 * det;\n out[1] = (-a22 * a01 + a02 * a21) * det;\n out[2] = (a12 * a01 - a02 * a11) * det;\n out[3] = b11 * det;\n out[4] = (a22 * a00 - a02 * a20) * det;\n out[5] = (-a12 * a00 + a02 * a10) * det;\n out[6] = b21 * det;\n out[7] = (-a21 * a00 + a01 * a20) * det;\n out[8] = (a11 * a00 - a01 * a10) * det;\n return out;\n}\n\n/**\n * Calculates the adjugate of a mat3\n *\n * @param {mat3} out the receiving matrix\n * @param {mat3} a the source matrix\n * @returns {mat3} out\n */\nexport function adjoint(out, a) {\n let a00 = a[0], a01 = a[1], a02 = a[2];\n let a10 = a[3], a11 = a[4], a12 = a[5];\n let a20 = a[6], a21 = a[7], a22 = a[8];\n\n out[0] = (a11 * a22 - a12 * a21);\n out[1] = (a02 * a21 - a01 * a22);\n out[2] = (a01 * a12 - a02 * a11);\n out[3] = (a12 * a20 - a10 * a22);\n out[4] = (a00 * a22 - a02 * a20);\n out[5] = (a02 * a10 - a00 * a12);\n out[6] = (a10 * a21 - a11 * a20);\n out[7] = (a01 * a20 - a00 * a21);\n out[8] = (a00 * a11 - a01 * a10);\n return out;\n}\n\n/**\n * Calculates the determinant of a mat3\n *\n * @param {mat3} a the source matrix\n * @returns {Number} determinant of a\n */\nexport function determinant(a) {\n let a00 = a[0], a01 = a[1], a02 = a[2];\n let a10 = a[3], a11 = a[4], a12 = a[5];\n let a20 = a[6], a21 = a[7], a22 = a[8];\n\n return a00 * (a22 * a11 - a12 * a21) + a01 * (-a22 * a10 + a12 * a20) + a02 * (a21 * a10 - a11 * a20);\n}\n\n/**\n * Multiplies two mat3's\n *\n * @param {mat3} out the receiving matrix\n * @param {mat3} a the first operand\n * @param {mat3} b the second operand\n * @returns {mat3} out\n */\nexport function multiply(out, a, b) {\n let a00 = a[0], a01 = a[1], a02 = a[2];\n let a10 = a[3], a11 = a[4], a12 = a[5];\n let a20 = a[6], a21 = a[7], a22 = a[8];\n\n let b00 = b[0], b01 = b[1], b02 = b[2];\n let b10 = b[3], b11 = b[4], b12 = b[5];\n let b20 = b[6], b21 = b[7], b22 = b[8];\n\n out[0] = b00 * a00 + b01 * a10 + b02 * a20;\n out[1] = b00 * a01 + b01 * a11 + b02 * a21;\n out[2] = b00 * a02 + b01 * a12 + b02 * a22;\n\n out[3] = b10 * a00 + b11 * a10 + b12 * a20;\n out[4] = b10 * a01 + b11 * a11 + b12 * a21;\n out[5] = b10 * a02 + b11 * a12 + b12 * a22;\n\n out[6] = b20 * a00 + b21 * a10 + b22 * a20;\n out[7] = b20 * a01 + b21 * a11 + b22 * a21;\n out[8] = b20 * a02 + b21 * a12 + b22 * a22;\n return out;\n}\n\n/**\n * Translate a mat3 by the given vector\n *\n * @param {mat3} out the receiving matrix\n * @param {mat3} a the matrix to translate\n * @param {vec2} v vector to translate by\n * @returns {mat3} out\n */\nexport function translate(out, a, v) {\n let a00 = a[0], a01 = a[1], a02 = a[2],\n a10 = a[3], a11 = a[4], a12 = a[5],\n a20 = a[6], a21 = a[7], a22 = a[8],\n x = v[0], y = v[1];\n\n out[0] = a00;\n out[1] = a01;\n out[2] = a02;\n\n out[3] = a10;\n out[4] = a11;\n out[5] = a12;\n\n out[6] = x * a00 + y * a10 + a20;\n out[7] = x * a01 + y * a11 + a21;\n out[8] = x * a02 + y * a12 + a22;\n return out;\n}\n\n/**\n * Rotates a mat3 by the given angle\n *\n * @param {mat3} out the receiving matrix\n * @param {mat3} a the matrix to rotate\n * @param {Number} rad the angle to rotate the matrix by\n * @returns {mat3} out\n */\nexport function rotate(out, a, rad) {\n let a00 = a[0], a01 = a[1], a02 = a[2],\n a10 = a[3], a11 = a[4], a12 = a[5],\n a20 = a[6], a21 = a[7], a22 = a[8],\n\n s = Math.sin(rad),\n c = Math.cos(rad);\n\n out[0] = c * a00 + s * a10;\n out[1] = c * a01 + s * a11;\n out[2] = c * a02 + s * a12;\n\n out[3] = c * a10 - s * a00;\n out[4] = c * a11 - s * a01;\n out[5] = c * a12 - s * a02;\n\n out[6] = a20;\n out[7] = a21;\n out[8] = a22;\n return out;\n};\n\n/**\n * Scales the mat3 by the dimensions in the given vec2\n *\n * @param {mat3} out the receiving matrix\n * @param {mat3} a the matrix to rotate\n * @param {vec2} v the vec2 to scale the matrix by\n * @returns {mat3} out\n **/\nexport function scale(out, a, v) {\n let x = v[0], y = v[1];\n\n out[0] = x * a[0];\n out[1] = x * a[1];\n out[2] = x * a[2];\n\n out[3] = y * a[3];\n out[4] = y * a[4];\n out[5] = y * a[5];\n\n out[6] = a[6];\n out[7] = a[7];\n out[8] = a[8];\n return out;\n}\n\n/**\n * Creates a matrix from a vector translation\n * This is equivalent to (but much faster than):\n *\n * mat3.identity(dest);\n * mat3.translate(dest, dest, vec);\n *\n * @param {mat3} out mat3 receiving operation result\n * @param {vec2} v Translation vector\n * @returns {mat3} out\n */\nexport function fromTranslation(out, v) {\n out[0] = 1;\n out[1] = 0;\n out[2] = 0;\n out[3] = 0;\n out[4] = 1;\n out[5] = 0;\n out[6] = v[0];\n out[7] = v[1];\n out[8] = 1;\n return out;\n}\n\n/**\n * Creates a matrix from a given angle\n * This is equivalent to (but much faster than):\n *\n * mat3.identity(dest);\n * mat3.rotate(dest, dest, rad);\n *\n * @param {mat3} out mat3 receiving operation result\n * @param {Number} rad the angle to rotate the matrix by\n * @returns {mat3} out\n */\nexport function fromRotation(out, rad) {\n let s = Math.sin(rad), c = Math.cos(rad);\n\n out[0] = c;\n out[1] = s;\n out[2] = 0;\n\n out[3] = -s;\n out[4] = c;\n out[5] = 0;\n\n out[6] = 0;\n out[7] = 0;\n out[8] = 1;\n return out;\n}\n\n/**\n * Creates a matrix from a vector scaling\n * This is equivalent to (but much faster than):\n *\n * mat3.identity(dest);\n * mat3.scale(dest, dest, vec);\n *\n * @param {mat3} out mat3 receiving operation result\n * @param {vec2} v Scaling vector\n * @returns {mat3} out\n */\nexport function fromScaling(out, v) {\n out[0] = v[0];\n out[1] = 0;\n out[2] = 0;\n\n out[3] = 0;\n out[4] = v[1];\n out[5] = 0;\n\n out[6] = 0;\n out[7] = 0;\n out[8] = 1;\n return out;\n}\n\n/**\n * Copies the values from a mat2d into a mat3\n *\n * @param {mat3} out the receiving matrix\n * @param {mat2d} a the matrix to copy\n * @returns {mat3} out\n **/\nexport function fromMat2d(out, a) {\n out[0] = a[0];\n out[1] = a[1];\n out[2] = 0;\n\n out[3] = a[2];\n out[4] = a[3];\n out[5] = 0;\n\n out[6] = a[4];\n out[7] = a[5];\n out[8] = 1;\n return out;\n}\n\n/**\n* Calculates a 3x3 matrix from the given quaternion\n*\n* @param {mat3} out mat3 receiving operation result\n* @param {quat} q Quaternion to create matrix from\n*\n* @returns {mat3} out\n*/\nexport function fromQuat(out, q) {\n let x = q[0], y = q[1], z = q[2], w = q[3];\n let x2 = x + x;\n let y2 = y + y;\n let z2 = z + z;\n\n let xx = x * x2;\n let yx = y * x2;\n let yy = y * y2;\n let zx = z * x2;\n let zy = z * y2;\n let zz = z * z2;\n let wx = w * x2;\n let wy = w * y2;\n let wz = w * z2;\n\n out[0] = 1 - yy - zz;\n out[3] = yx - wz;\n out[6] = zx + wy;\n\n out[1] = yx + wz;\n out[4] = 1 - xx - zz;\n out[7] = zy - wx;\n\n out[2] = zx - wy;\n out[5] = zy + wx;\n out[8] = 1 - xx - yy;\n\n return out;\n}\n\n/**\n* Calculates a 3x3 normal matrix (transpose inverse) from the 4x4 matrix\n*\n* @param {mat3} out mat3 receiving operation result\n* @param {mat4} a Mat4 to derive the normal matrix from\n*\n* @returns {mat3} out\n*/\nexport function normalFromMat4(out, a) {\n let a00 = a[0], a01 = a[1], a02 = a[2], a03 = a[3];\n let a10 = a[4], a11 = a[5], a12 = a[6], a13 = a[7];\n let a20 = a[8], a21 = a[9], a22 = a[10], a23 = a[11];\n let a30 = a[12], a31 = a[13], a32 = a[14], a33 = a[15];\n\n let b00 = a00 * a11 - a01 * a10;\n let b01 = a00 * a12 - a02 * a10;\n let b02 = a00 * a13 - a03 * a10;\n let b03 = a01 * a12 - a02 * a11;\n let b04 = a01 * a13 - a03 * a11;\n let b05 = a02 * a13 - a03 * a12;\n let b06 = a20 * a31 - a21 * a30;\n let b07 = a20 * a32 - a22 * a30;\n let b08 = a20 * a33 - a23 * a30;\n let b09 = a21 * a32 - a22 * a31;\n let b10 = a21 * a33 - a23 * a31;\n let b11 = a22 * a33 - a23 * a32;\n\n // Calculate the determinant\n let det = b00 * b11 - b01 * b10 + b02 * b09 + b03 * b08 - b04 * b07 + b05 * b06;\n\n if (!det) {\n return null;\n }\n det = 1.0 / det;\n\n out[0] = (a11 * b11 - a12 * b10 + a13 * b09) * det;\n out[1] = (a12 * b08 - a10 * b11 - a13 * b07) * det;\n out[2] = (a10 * b10 - a11 * b08 + a13 * b06) * det;\n\n out[3] = (a02 * b10 - a01 * b11 - a03 * b09) * det;\n out[4] = (a00 * b11 - a02 * b08 + a03 * b07) * det;\n out[5] = (a01 * b08 - a00 * b10 - a03 * b06) * det;\n\n out[6] = (a31 * b05 - a32 * b04 + a33 * b03) * det;\n out[7] = (a32 * b02 - a30 * b05 - a33 * b01) * det;\n out[8] = (a30 * b04 - a31 * b02 + a33 * b00) * det;\n\n return out;\n}\n\n/**\n * Generates a 2D projection matrix with the given bounds\n *\n * @param {mat3} out mat3 frustum matrix will be written into\n * @param {number} width Width of your gl context\n * @param {number} height Height of gl context\n * @returns {mat3} out\n */\nexport function projection(out, width, height) {\n out[0] = 2 / width;\n out[1] = 0;\n out[2] = 0;\n out[3] = 0;\n out[4] = -2 / height;\n out[5] = 0;\n out[6] = -1;\n out[7] = 1;\n out[8] = 1;\n return out;\n}\n\n/**\n * Returns a string representation of a mat3\n *\n * @param {mat3} a matrix to represent as a string\n * @returns {String} string representation of the matrix\n */\nexport function str(a) {\n return 'mat3(' + a[0] + ', ' + a[1] + ', ' + a[2] + ', ' +\n a[3] + ', ' + a[4] + ', ' + a[5] + ', ' +\n a[6] + ', ' + a[7] + ', ' + a[8] + ')';\n}\n\n/**\n * Returns Frobenius norm of a mat3\n *\n * @param {mat3} a the matrix to calculate Frobenius norm of\n * @returns {Number} Frobenius norm\n */\nexport function frob(a) {\n return(Math.sqrt(Math.pow(a[0], 2) + Math.pow(a[1], 2) + Math.pow(a[2], 2) + Math.pow(a[3], 2) + Math.pow(a[4], 2) + Math.pow(a[5], 2) + Math.pow(a[6], 2) + Math.pow(a[7], 2) + Math.pow(a[8], 2)))\n}\n\n/**\n * Adds two mat3's\n *\n * @param {mat3} out the receiving matrix\n * @param {mat3} a the first operand\n * @param {mat3} b the second operand\n * @returns {mat3} out\n */\nexport function add(out, a, b) {\n out[0] = a[0] + b[0];\n out[1] = a[1] + b[1];\n out[2] = a[2] + b[2];\n out[3] = a[3] + b[3];\n out[4] = a[4] + b[4];\n out[5] = a[5] + b[5];\n out[6] = a[6] + b[6];\n out[7] = a[7] + b[7];\n out[8] = a[8] + b[8];\n return out;\n}\n\n/**\n * Subtracts matrix b from matrix a\n *\n * @param {mat3} out the receiving matrix\n * @param {mat3} a the first operand\n * @param {mat3} b the second operand\n * @returns {mat3} out\n */\nexport function subtract(out, a, b) {\n out[0] = a[0] - b[0];\n out[1] = a[1] - b[1];\n out[2] = a[2] - b[2];\n out[3] = a[3] - b[3];\n out[4] = a[4] - b[4];\n out[5] = a[5] - b[5];\n out[6] = a[6] - b[6];\n out[7] = a[7] - b[7];\n out[8] = a[8] - b[8];\n return out;\n}\n\n\n\n/**\n * Multiply each element of the matrix by a scalar.\n *\n * @param {mat3} out the receiving matrix\n * @param {mat3} a the matrix to scale\n * @param {Number} b amount to scale the matrix's elements by\n * @returns {mat3} out\n */\nexport function multiplyScalar(out, a, b) {\n out[0] = a[0] * b;\n out[1] = a[1] * b;\n out[2] = a[2] * b;\n out[3] = a[3] * b;\n out[4] = a[4] * b;\n out[5] = a[5] * b;\n out[6] = a[6] * b;\n out[7] = a[7] * b;\n out[8] = a[8] * b;\n return out;\n}\n\n/**\n * Adds two mat3's after multiplying each element of the second operand by a scalar value.\n *\n * @param {mat3} out the receiving vector\n * @param {mat3} a the first operand\n * @param {mat3} b the second operand\n * @param {Number} scale the amount to scale b's elements by before adding\n * @returns {mat3} out\n */\nexport function multiplyScalarAndAdd(out, a, b, scale) {\n out[0] = a[0] + (b[0] * scale);\n out[1] = a[1] + (b[1] * scale);\n out[2] = a[2] + (b[2] * scale);\n out[3] = a[3] + (b[3] * scale);\n out[4] = a[4] + (b[4] * scale);\n out[5] = a[5] + (b[5] * scale);\n out[6] = a[6] + (b[6] * scale);\n out[7] = a[7] + (b[7] * scale);\n out[8] = a[8] + (b[8] * scale);\n return out;\n}\n\n/**\n * Returns whether or not the matrices have exactly the same elements in the same position (when compared with ===)\n *\n * @param {mat3} a The first matrix.\n * @param {mat3} b The second matrix.\n * @returns {Boolean} True if the matrices are equal, false otherwise.\n */\nexport function exactEquals(a, b) {\n return a[0] === b[0] && a[1] === b[1] && a[2] === b[2] &&\n a[3] === b[3] && a[4] === b[4] && a[5] === b[5] &&\n a[6] === b[6] && a[7] === b[7] && a[8] === b[8];\n}\n\n/**\n * Returns whether or not the matrices have approximately the same elements in the same position.\n *\n * @param {mat3} a The first matrix.\n * @param {mat3} b The second matrix.\n * @returns {Boolean} True if the matrices are equal, false otherwise.\n */\nexport function equals(a, b) {\n let a0 = a[0], a1 = a[1], a2 = a[2], a3 = a[3], a4 = a[4], a5 = a[5], a6 = a[6], a7 = a[7], a8 = a[8];\n let b0 = b[0], b1 = b[1], b2 = b[2], b3 = b[3], b4 = b[4], b5 = b[5], b6 = b[6], b7 = b[7], b8 = b[8];\n return (Math.abs(a0 - b0) <= glMatrix.EPSILON*Math.max(1.0, Math.abs(a0), Math.abs(b0)) &&\n Math.abs(a1 - b1) <= glMatrix.EPSILON*Math.max(1.0, Math.abs(a1), Math.abs(b1)) &&\n Math.abs(a2 - b2) <= glMatrix.EPSILON*Math.max(1.0, Math.abs(a2), Math.abs(b2)) &&\n Math.abs(a3 - b3) <= glMatrix.EPSILON*Math.max(1.0, Math.abs(a3), Math.abs(b3)) &&\n Math.abs(a4 - b4) <= glMatrix.EPSILON*Math.max(1.0, Math.abs(a4), Math.abs(b4)) &&\n Math.abs(a5 - b5) <= glMatrix.EPSILON*Math.max(1.0, Math.abs(a5), Math.abs(b5)) &&\n Math.abs(a6 - b6) <= glMatrix.EPSILON*Math.max(1.0, Math.abs(a6), Math.abs(b6)) &&\n Math.abs(a7 - b7) <= glMatrix.EPSILON*Math.max(1.0, Math.abs(a7), Math.abs(b7)) &&\n Math.abs(a8 - b8) <= glMatrix.EPSILON*Math.max(1.0, Math.abs(a8), Math.abs(b8)));\n}\n\n/**\n * Alias for {@link mat3.multiply}\n * @function\n */\nexport const mul = multiply;\n\n/**\n * Alias for {@link mat3.subtract}\n * @function\n */\nexport const sub = subtract;\n\n\n\n//////////////////\n// WEBPACK FOOTER\n// ./node_modules/gl-matrix/src/gl-matrix/mat3.js\n// module id = 5\n// module chunks = 0","/* Copyright (c) 2015, Brandon Jones, Colin MacKenzie IV.\n\nPermission is hereby granted, free of charge, to any person obtaining a copy\nof this software and associated documentation files (the \"Software\"), to deal\nin the Software without restriction, including without limitation the rights\nto use, copy, modify, merge, publish, distribute, sublicense, and/or sell\ncopies of the Software, and to permit persons to whom the Software is\nfurnished to do so, subject to the following conditions:\n\nThe above copyright notice and this permission notice shall be included in\nall copies or substantial portions of the Software.\n\nTHE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\nIMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\nFITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE\nAUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\nLIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,\nOUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN\nTHE SOFTWARE. */\n\nimport * as glMatrix from \"./common\";\n\n/**\n * 3 Dimensional Vector\n * @module vec3\n */\n\n/**\n * Creates a new, empty vec3\n *\n * @returns {vec3} a new 3D vector\n */\nexport function create() {\n let out = new glMatrix.ARRAY_TYPE(3);\n out[0] = 0;\n out[1] = 0;\n out[2] = 0;\n return out;\n}\n\n/**\n * Creates a new vec3 initialized with values from an existing vector\n *\n * @param {vec3} a vector to clone\n * @returns {vec3} a new 3D vector\n */\nexport function clone(a) {\n var out = new glMatrix.ARRAY_TYPE(3);\n out[0] = a[0];\n out[1] = a[1];\n out[2] = a[2];\n return out;\n}\n\n/**\n * Calculates the length of a vec3\n *\n * @param {vec3} a vector to calculate length of\n * @returns {Number} length of a\n */\nexport function length(a) {\n let x = a[0];\n let y = a[1];\n let z = a[2];\n return Math.sqrt(x*x + y*y + z*z);\n}\n\n/**\n * Creates a new vec3 initialized with the given values\n *\n * @param {Number} x X component\n * @param {Number} y Y component\n * @param {Number} z Z component\n * @returns {vec3} a new 3D vector\n */\nexport function fromValues(x, y, z) {\n let out = new glMatrix.ARRAY_TYPE(3);\n out[0] = x;\n out[1] = y;\n out[2] = z;\n return out;\n}\n\n/**\n * Copy the values from one vec3 to another\n *\n * @param {vec3} out the receiving vector\n * @param {vec3} a the source vector\n * @returns {vec3} out\n */\nexport function copy(out, a) {\n out[0] = a[0];\n out[1] = a[1];\n out[2] = a[2];\n return out;\n}\n\n/**\n * Set the components of a vec3 to the given values\n *\n * @param {vec3} out the receiving vector\n * @param {Number} x X component\n * @param {Number} y Y component\n * @param {Number} z Z component\n * @returns {vec3} out\n */\nexport function set(out, x, y, z) {\n out[0] = x;\n out[1] = y;\n out[2] = z;\n return out;\n}\n\n/**\n * Adds two vec3's\n *\n * @param {vec3} out the receiving vector\n * @param {vec3} a the first operand\n * @param {vec3} b the second operand\n * @returns {vec3} out\n */\nexport function add(out, a, b) {\n out[0] = a[0] + b[0];\n out[1] = a[1] + b[1];\n out[2] = a[2] + b[2];\n return out;\n}\n\n/**\n * Subtracts vector b from vector a\n *\n * @param {vec3} out the receiving vector\n * @param {vec3} a the first operand\n * @param {vec3} b the second operand\n * @returns {vec3} out\n */\nexport function subtract(out, a, b) {\n out[0] = a[0] - b[0];\n out[1] = a[1] - b[1];\n out[2] = a[2] - b[2];\n return out;\n}\n\n/**\n * Multiplies two vec3's\n *\n * @param {vec3} out the receiving vector\n * @param {vec3} a the first operand\n * @param {vec3} b the second operand\n * @returns {vec3} out\n */\nexport function multiply(out, a, b) {\n out[0] = a[0] * b[0];\n out[1] = a[1] * b[1];\n out[2] = a[2] * b[2];\n return out;\n}\n\n/**\n * Divides two vec3's\n *\n * @param {vec3} out the receiving vector\n * @param {vec3} a the first operand\n * @param {vec3} b the second operand\n * @returns {vec3} out\n */\nexport function divide(out, a, b) {\n out[0] = a[0] / b[0];\n out[1] = a[1] / b[1];\n out[2] = a[2] / b[2];\n return out;\n}\n\n/**\n * Math.ceil the components of a vec3\n *\n * @param {vec3} out the receiving vector\n * @param {vec3} a vector to ceil\n * @returns {vec3} out\n */\nexport function ceil(out, a) {\n out[0] = Math.ceil(a[0]);\n out[1] = Math.ceil(a[1]);\n out[2] = Math.ceil(a[2]);\n return out;\n}\n\n/**\n * Math.floor the components of a vec3\n *\n * @param {vec3} out the receiving vector\n * @param {vec3} a vector to floor\n * @returns {vec3} out\n */\nexport function floor(out, a) {\n out[0] = Math.floor(a[0]);\n out[1] = Math.floor(a[1]);\n out[2] = Math.floor(a[2]);\n return out;\n}\n\n/**\n * Returns the minimum of two vec3's\n *\n * @param {vec3} out the receiving vector\n * @param {vec3} a the first operand\n * @param {vec3} b the second operand\n * @returns {vec3} out\n */\nexport function min(out, a, b) {\n out[0] = Math.min(a[0], b[0]);\n out[1] = Math.min(a[1], b[1]);\n out[2] = Math.min(a[2], b[2]);\n return out;\n}\n\n/**\n * Returns the maximum of two vec3's\n *\n * @param {vec3} out the receiving vector\n * @param {vec3} a the first operand\n * @param {vec3} b the second operand\n * @returns {vec3} out\n */\nexport function max(out, a, b) {\n out[0] = Math.max(a[0], b[0]);\n out[1] = Math.max(a[1], b[1]);\n out[2] = Math.max(a[2], b[2]);\n return out;\n}\n\n/**\n * Math.round the components of a vec3\n *\n * @param {vec3} out the receiving vector\n * @param {vec3} a vector to round\n * @returns {vec3} out\n */\nexport function round(out, a) {\n out[0] = Math.round(a[0]);\n out[1] = Math.round(a[1]);\n out[2] = Math.round(a[2]);\n return out;\n}\n\n/**\n * Scales a vec3 by a scalar number\n *\n * @param {vec3} out the receiving vector\n * @param {vec3} a the vector to scale\n * @param {Number} b amount to scale the vector by\n * @returns {vec3} out\n */\nexport function scale(out, a, b) {\n out[0] = a[0] * b;\n out[1] = a[1] * b;\n out[2] = a[2] * b;\n return out;\n}\n\n/**\n * Adds two vec3's after scaling the second operand by a scalar value\n *\n * @param {vec3} out the receiving vector\n * @param {vec3} a the first operand\n * @param {vec3} b the second operand\n * @param {Number} scale the amount to scale b by before adding\n * @returns {vec3} out\n */\nexport function scaleAndAdd(out, a, b, scale) {\n out[0] = a[0] + (b[0] * scale);\n out[1] = a[1] + (b[1] * scale);\n out[2] = a[2] + (b[2] * scale);\n return out;\n}\n\n/**\n * Calculates the euclidian distance between two vec3's\n *\n * @param {vec3} a the first operand\n * @param {vec3} b the second operand\n * @returns {Number} distance between a and b\n */\nexport function distance(a, b) {\n let x = b[0] - a[0];\n let y = b[1] - a[1];\n let z = b[2] - a[2];\n return Math.sqrt(x*x + y*y + z*z);\n}\n\n/**\n * Calculates the squared euclidian distance between two vec3's\n *\n * @param {vec3} a the first operand\n * @param {vec3} b the second operand\n * @returns {Number} squared distance between a and b\n */\nexport function squaredDistance(a, b) {\n let x = b[0] - a[0];\n let y = b[1] - a[1];\n let z = b[2] - a[2];\n return x*x + y*y + z*z;\n}\n\n/**\n * Calculates the squared length of a vec3\n *\n * @param {vec3} a vector to calculate squared length of\n * @returns {Number} squared length of a\n */\nexport function squaredLength(a) {\n let x = a[0];\n let y = a[1];\n let z = a[2];\n return x*x + y*y + z*z;\n}\n\n/**\n * Negates the components of a vec3\n *\n * @param {vec3} out the receiving vector\n * @param {vec3} a vector to negate\n * @returns {vec3} out\n */\nexport function negate(out, a) {\n out[0] = -a[0];\n out[1] = -a[1];\n out[2] = -a[2];\n return out;\n}\n\n/**\n * Returns the inverse of the components of a vec3\n *\n * @param {vec3} out the receiving vector\n * @param {vec3} a vector to invert\n * @returns {vec3} out\n */\nexport function inverse(out, a) {\n out[0] = 1.0 / a[0];\n out[1] = 1.0 / a[1];\n out[2] = 1.0 / a[2];\n return out;\n}\n\n/**\n * Normalize a vec3\n *\n * @param {vec3} out the receiving vector\n * @param {vec3} a vector to normalize\n * @returns {vec3} out\n */\nexport function normalize(out, a) {\n let x = a[0];\n let y = a[1];\n let z = a[2];\n let len = x*x + y*y + z*z;\n if (len > 0) {\n //TODO: evaluate use of glm_invsqrt here?\n len = 1 / Math.sqrt(len);\n out[0] = a[0] * len;\n out[1] = a[1] * len;\n out[2] = a[2] * len;\n }\n return out;\n}\n\n/**\n * Calculates the dot product of two vec3's\n *\n * @param {vec3} a the first operand\n * @param {vec3} b the second operand\n * @returns {Number} dot product of a and b\n */\nexport function dot(a, b) {\n return a[0] * b[0] + a[1] * b[1] + a[2] * b[2];\n}\n\n/**\n * Computes the cross product of two vec3's\n *\n * @param {vec3} out the receiving vector\n * @param {vec3} a the first operand\n * @param {vec3} b the second operand\n * @returns {vec3} out\n */\nexport function cross(out, a, b) {\n let ax = a[0], ay = a[1], az = a[2];\n let bx = b[0], by = b[1], bz = b[2];\n\n out[0] = ay * bz - az * by;\n out[1] = az * bx - ax * bz;\n out[2] = ax * by - ay * bx;\n return out;\n}\n\n/**\n * Performs a linear interpolation between two vec3's\n *\n * @param {vec3} out the receiving vector\n * @param {vec3} a the first operand\n * @param {vec3} b the second operand\n * @param {Number} t interpolation amount between the two inputs\n * @returns {vec3} out\n */\nexport function lerp(out, a, b, t) {\n let ax = a[0];\n let ay = a[1];\n let az = a[2];\n out[0] = ax + t * (b[0] - ax);\n out[1] = ay + t * (b[1] - ay);\n out[2] = az + t * (b[2] - az);\n return out;\n}\n\n/**\n * Performs a hermite interpolation with two control points\n *\n * @param {vec3} out the receiving vector\n * @param {vec3} a the first operand\n * @param {vec3} b the second operand\n * @param {vec3} c the third operand\n * @param {vec3} d the fourth operand\n * @param {Number} t interpolation amount between the two inputs\n * @returns {vec3} out\n */\nexport function hermite(out, a, b, c, d, t) {\n let factorTimes2 = t * t;\n let factor1 = factorTimes2 * (2 * t - 3) + 1;\n let factor2 = factorTimes2 * (t - 2) + t;\n let factor3 = factorTimes2 * (t - 1);\n let factor4 = factorTimes2 * (3 - 2 * t);\n\n out[0] = a[0] * factor1 + b[0] * factor2 + c[0] * factor3 + d[0] * factor4;\n out[1] = a[1] * factor1 + b[1] * factor2 + c[1] * factor3 + d[1] * factor4;\n out[2] = a[2] * factor1 + b[2] * factor2 + c[2] * factor3 + d[2] * factor4;\n\n return out;\n}\n\n/**\n * Performs a bezier interpolation with two control points\n *\n * @param {vec3} out the receiving vector\n * @param {vec3} a the first operand\n * @param {vec3} b the second operand\n * @param {vec3} c the third operand\n * @param {vec3} d the fourth operand\n * @param {Number} t interpolation amount between the two inputs\n * @returns {vec3} out\n */\nexport function bezier(out, a, b, c, d, t) {\n let inverseFactor = 1 - t;\n let inverseFactorTimesTwo = inverseFactor * inverseFactor;\n let factorTimes2 = t * t;\n let factor1 = inverseFactorTimesTwo * inverseFactor;\n let factor2 = 3 * t * inverseFactorTimesTwo;\n let factor3 = 3 * factorTimes2 * inverseFactor;\n let factor4 = factorTimes2 * t;\n\n out[0] = a[0] * factor1 + b[0] * factor2 + c[0] * factor3 + d[0] * factor4;\n out[1] = a[1] * factor1 + b[1] * factor2 + c[1] * factor3 + d[1] * factor4;\n out[2] = a[2] * factor1 + b[2] * factor2 + c[2] * factor3 + d[2] * factor4;\n\n return out;\n}\n\n/**\n * Generates a random vector with the given scale\n *\n * @param {vec3} out the receiving vector\n * @param {Number} [scale] Length of the resulting vector. If ommitted, a unit vector will be returned\n * @returns {vec3} out\n */\nexport function random(out, scale) {\n scale = scale || 1.0;\n\n let r = glMatrix.RANDOM() * 2.0 * Math.PI;\n let z = (glMatrix.RANDOM() * 2.0) - 1.0;\n let zScale = Math.sqrt(1.0-z*z) * scale;\n\n out[0] = Math.cos(r) * zScale;\n out[1] = Math.sin(r) * zScale;\n out[2] = z * scale;\n return out;\n}\n\n/**\n * Transforms the vec3 with a mat4.\n * 4th vector component is implicitly '1'\n *\n * @param {vec3} out the receiving vector\n * @param {vec3} a the vector to transform\n * @param {mat4} m matrix to transform with\n * @returns {vec3} out\n */\nexport function transformMat4(out, a, m) {\n let x = a[0], y = a[1], z = a[2];\n let w = m[3] * x + m[7] * y + m[11] * z + m[15];\n w = w || 1.0;\n out[0] = (m[0] * x + m[4] * y + m[8] * z + m[12]) / w;\n out[1] = (m[1] * x + m[5] * y + m[9] * z + m[13]) / w;\n out[2] = (m[2] * x + m[6] * y + m[10] * z + m[14]) / w;\n return out;\n}\n\n/**\n * Transforms the vec3 with a mat3.\n *\n * @param {vec3} out the receiving vector\n * @param {vec3} a the vector to transform\n * @param {mat3} m the 3x3 matrix to transform with\n * @returns {vec3} out\n */\nexport function transformMat3(out, a, m) {\n let x = a[0], y = a[1], z = a[2];\n out[0] = x * m[0] + y * m[3] + z * m[6];\n out[1] = x * m[1] + y * m[4] + z * m[7];\n out[2] = x * m[2] + y * m[5] + z * m[8];\n return out;\n}\n\n/**\n * Transforms the vec3 with a quat\n *\n * @param {vec3} out the receiving vector\n * @param {vec3} a the vector to transform\n * @param {quat} q quaternion to transform with\n * @returns {vec3} out\n */\nexport function transformQuat(out, a, q) {\n // benchmarks: http://jsperf.com/quaternion-transform-vec3-implementations\n\n let x = a[0], y = a[1], z = a[2];\n let qx = q[0], qy = q[1], qz = q[2], qw = q[3];\n\n // calculate quat * vec\n let ix = qw * x + qy * z - qz * y;\n let iy = qw * y + qz * x - qx * z;\n let iz = qw * z + qx * y - qy * x;\n let iw = -qx * x - qy * y - qz * z;\n\n // calculate result * inverse quat\n out[0] = ix * qw + iw * -qx + iy * -qz - iz * -qy;\n out[1] = iy * qw + iw * -qy + iz * -qx - ix * -qz;\n out[2] = iz * qw + iw * -qz + ix * -qy - iy * -qx;\n return out;\n}\n\n/**\n * Rotate a 3D vector around the x-axis\n * @param {vec3} out The receiving vec3\n * @param {vec3} a The vec3 point to rotate\n * @param {vec3} b The origin of the rotation\n * @param {Number} c The angle of rotation\n * @returns {vec3} out\n */\nexport function rotateX(out, a, b, c){\n let p = [], r=[];\n //Translate point to the origin\n p[0] = a[0] - b[0];\n p[1] = a[1] - b[1];\n p[2] = a[2] - b[2];\n\n //perform rotation\n r[0] = p[0];\n r[1] = p[1]*Math.cos(c) - p[2]*Math.sin(c);\n r[2] = p[1]*Math.sin(c) + p[2]*Math.cos(c);\n\n //translate to correct position\n out[0] = r[0] + b[0];\n out[1] = r[1] + b[1];\n out[2] = r[2] + b[2];\n\n return out;\n}\n\n/**\n * Rotate a 3D vector around the y-axis\n * @param {vec3} out The receiving vec3\n * @param {vec3} a The vec3 point to rotate\n * @param {vec3} b The origin of the rotation\n * @param {Number} c The angle of rotation\n * @returns {vec3} out\n */\nexport function rotateY(out, a, b, c){\n let p = [], r=[];\n //Translate point to the origin\n p[0] = a[0] - b[0];\n p[1] = a[1] - b[1];\n p[2] = a[2] - b[2];\n\n //perform rotation\n r[0] = p[2]*Math.sin(c) + p[0]*Math.cos(c);\n r[1] = p[1];\n r[2] = p[2]*Math.cos(c) - p[0]*Math.sin(c);\n\n //translate to correct position\n out[0] = r[0] + b[0];\n out[1] = r[1] + b[1];\n out[2] = r[2] + b[2];\n\n return out;\n}\n\n/**\n * Rotate a 3D vector around the z-axis\n * @param {vec3} out The receiving vec3\n * @param {vec3} a The vec3 point to rotate\n * @param {vec3} b The origin of the rotation\n * @param {Number} c The angle of rotation\n * @returns {vec3} out\n */\nexport function rotateZ(out, a, b, c){\n let p = [], r=[];\n //Translate point to the origin\n p[0] = a[0] - b[0];\n p[1] = a[1] - b[1];\n p[2] = a[2] - b[2];\n\n //perform rotation\n r[0] = p[0]*Math.cos(c) - p[1]*Math.sin(c);\n r[1] = p[0]*Math.sin(c) + p[1]*Math.cos(c);\n r[2] = p[2];\n\n //translate to correct position\n out[0] = r[0] + b[0];\n out[1] = r[1] + b[1];\n out[2] = r[2] + b[2];\n\n return out;\n}\n\n/**\n * Get the angle between two 3D vectors\n * @param {vec3} a The first operand\n * @param {vec3} b The second operand\n * @returns {Number} The angle in radians\n */\nexport function angle(a, b) {\n let tempA = fromValues(a[0], a[1], a[2]);\n let tempB = fromValues(b[0], b[1], b[2]);\n\n normalize(tempA, tempA);\n normalize(tempB, tempB);\n\n let cosine = dot(tempA, tempB);\n\n if(cosine > 1.0) {\n return 0;\n }\n else if(cosine < -1.0) {\n return Math.PI;\n } else {\n return Math.acos(cosine);\n }\n}\n\n/**\n * Returns a string representation of a vector\n *\n * @param {vec3} a vector to represent as a string\n * @returns {String} string representation of the vector\n */\nexport function str(a) {\n return 'vec3(' + a[0] + ', ' + a[1] + ', ' + a[2] + ')';\n}\n\n/**\n * Returns whether or not the vectors have exactly the same elements in the same position (when compared with ===)\n *\n * @param {vec3} a The first vector.\n * @param {vec3} b The second vector.\n * @returns {Boolean} True if the vectors are equal, false otherwise.\n */\nexport function exactEquals(a, b) {\n return a[0] === b[0] && a[1] === b[1] && a[2] === b[2];\n}\n\n/**\n * Returns whether or not the vectors have approximately the same elements in the same position.\n *\n * @param {vec3} a The first vector.\n * @param {vec3} b The second vector.\n * @returns {Boolean} True if the vectors are equal, false otherwise.\n */\nexport function equals(a, b) {\n let a0 = a[0], a1 = a[1], a2 = a[2];\n let b0 = b[0], b1 = b[1], b2 = b[2];\n return (Math.abs(a0 - b0) <= glMatrix.EPSILON*Math.max(1.0, Math.abs(a0), Math.abs(b0)) &&\n Math.abs(a1 - b1) <= glMatrix.EPSILON*Math.max(1.0, Math.abs(a1), Math.abs(b1)) &&\n Math.abs(a2 - b2) <= glMatrix.EPSILON*Math.max(1.0, Math.abs(a2), Math.abs(b2)));\n}\n\n/**\n * Alias for {@link vec3.subtract}\n * @function\n */\nexport const sub = subtract;\n\n/**\n * Alias for {@link vec3.multiply}\n * @function\n */\nexport const mul = multiply;\n\n/**\n * Alias for {@link vec3.divide}\n * @function\n */\nexport const div = divide;\n\n/**\n * Alias for {@link vec3.distance}\n * @function\n */\nexport const dist = distance;\n\n/**\n * Alias for {@link vec3.squaredDistance}\n * @function\n */\nexport const sqrDist = squaredDistance;\n\n/**\n * Alias for {@link vec3.length}\n * @function\n */\nexport const len = length;\n\n/**\n * Alias for {@link vec3.squaredLength}\n * @function\n */\nexport const sqrLen = squaredLength;\n\n/**\n * Perform some operation over an array of vec3s.\n *\n * @param {Array} a the array of vectors to iterate over\n * @param {Number} stride Number of elements between the start of each vec3. If 0 assumes tightly packed\n * @param {Number} offset Number of elements to skip at the beginning of the array\n * @param {Number} count Number of vec3s to iterate over. If 0 iterates over entire array\n * @param {Function} fn Function to call for each vector in the array\n * @param {Object} [arg] additional argument to pass to fn\n * @returns {Array} a\n * @function\n */\nexport const forEach = (function() {\n let vec = create();\n\n return function(a, stride, offset, count, fn, arg) {\n let i, l;\n if(!stride) {\n stride = 3;\n }\n\n if(!offset) {\n offset = 0;\n }\n\n if(count) {\n l = Math.min((count * stride) + offset, a.length);\n } else {\n l = a.length;\n }\n\n for(i = offset; i < l; i += stride) {\n vec[0] = a[i]; vec[1] = a[i+1]; vec[2] = a[i+2];\n fn(vec, vec, arg);\n a[i] = vec[0]; a[i+1] = vec[1]; a[i+2] = vec[2];\n }\n\n return a;\n };\n})();\n\n\n\n//////////////////\n// WEBPACK FOOTER\n// ./node_modules/gl-matrix/src/gl-matrix/vec3.js\n// module id = 6\n// module chunks = 0","/* Copyright (c) 2015, Brandon Jones, Colin MacKenzie IV.\n\nPermission is hereby granted, free of charge, to any person obtaining a copy\nof this software and associated documentation files (the \"Software\"), to deal\nin the Software without restriction, including without limitation the rights\nto use, copy, modify, merge, publish, distribute, sublicense, and/or sell\ncopies of the Software, and to permit persons to whom the Software is\nfurnished to do so, subject to the following conditions:\n\nThe above copyright notice and this permission notice shall be included in\nall copies or substantial portions of the Software.\n\nTHE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\nIMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\nFITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE\nAUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\nLIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,\nOUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN\nTHE SOFTWARE. */\n\nimport * as glMatrix from \"./common\";\n\n/**\n * 4 Dimensional Vector\n * @module vec4\n */\n\n/**\n * Creates a new, empty vec4\n *\n * @returns {vec4} a new 4D vector\n */\nexport function create() {\n let out = new glMatrix.ARRAY_TYPE(4);\n out[0] = 0;\n out[1] = 0;\n out[2] = 0;\n out[3] = 0;\n return out;\n}\n\n/**\n * Creates a new vec4 initialized with values from an existing vector\n *\n * @param {vec4} a vector to clone\n * @returns {vec4} a new 4D vector\n */\nexport function clone(a) {\n let out = new glMatrix.ARRAY_TYPE(4);\n out[0] = a[0];\n out[1] = a[1];\n out[2] = a[2];\n out[3] = a[3];\n return out;\n}\n\n/**\n * Creates a new vec4 initialized with the given values\n *\n * @param {Number} x X component\n * @param {Number} y Y component\n * @param {Number} z Z component\n * @param {Number} w W component\n * @returns {vec4} a new 4D vector\n */\nexport function fromValues(x, y, z, w) {\n let out = new glMatrix.ARRAY_TYPE(4);\n out[0] = x;\n out[1] = y;\n out[2] = z;\n out[3] = w;\n return out;\n}\n\n/**\n * Copy the values from one vec4 to another\n *\n * @param {vec4} out the receiving vector\n * @param {vec4} a the source vector\n * @returns {vec4} out\n */\nexport function copy(out, a) {\n out[0] = a[0];\n out[1] = a[1];\n out[2] = a[2];\n out[3] = a[3];\n return out;\n}\n\n/**\n * Set the components of a vec4 to the given values\n *\n * @param {vec4} out the receiving vector\n * @param {Number} x X component\n * @param {Number} y Y component\n * @param {Number} z Z component\n * @param {Number} w W component\n * @returns {vec4} out\n */\nexport function set(out, x, y, z, w) {\n out[0] = x;\n out[1] = y;\n out[2] = z;\n out[3] = w;\n return out;\n}\n\n/**\n * Adds two vec4's\n *\n * @param {vec4} out the receiving vector\n * @param {vec4} a the first operand\n * @param {vec4} b the second operand\n * @returns {vec4} out\n */\nexport function add(out, a, b) {\n out[0] = a[0] + b[0];\n out[1] = a[1] + b[1];\n out[2] = a[2] + b[2];\n out[3] = a[3] + b[3];\n return out;\n}\n\n/**\n * Subtracts vector b from vector a\n *\n * @param {vec4} out the receiving vector\n * @param {vec4} a the first operand\n * @param {vec4} b the second operand\n * @returns {vec4} out\n */\nexport function subtract(out, a, b) {\n out[0] = a[0] - b[0];\n out[1] = a[1] - b[1];\n out[2] = a[2] - b[2];\n out[3] = a[3] - b[3];\n return out;\n}\n\n/**\n * Multiplies two vec4's\n *\n * @param {vec4} out the receiving vector\n * @param {vec4} a the first operand\n * @param {vec4} b the second operand\n * @returns {vec4} out\n */\nexport function multiply(out, a, b) {\n out[0] = a[0] * b[0];\n out[1] = a[1] * b[1];\n out[2] = a[2] * b[2];\n out[3] = a[3] * b[3];\n return out;\n}\n\n/**\n * Divides two vec4's\n *\n * @param {vec4} out the receiving vector\n * @param {vec4} a the first operand\n * @param {vec4} b the second operand\n * @returns {vec4} out\n */\nexport function divide(out, a, b) {\n out[0] = a[0] / b[0];\n out[1] = a[1] / b[1];\n out[2] = a[2] / b[2];\n out[3] = a[3] / b[3];\n return out;\n}\n\n/**\n * Math.ceil the components of a vec4\n *\n * @param {vec4} out the receiving vector\n * @param {vec4} a vector to ceil\n * @returns {vec4} out\n */\nexport function ceil(out, a) {\n out[0] = Math.ceil(a[0]);\n out[1] = Math.ceil(a[1]);\n out[2] = Math.ceil(a[2]);\n out[3] = Math.ceil(a[3]);\n return out;\n}\n\n/**\n * Math.floor the components of a vec4\n *\n * @param {vec4} out the receiving vector\n * @param {vec4} a vector to floor\n * @returns {vec4} out\n */\nexport function floor(out, a) {\n out[0] = Math.floor(a[0]);\n out[1] = Math.floor(a[1]);\n out[2] = Math.floor(a[2]);\n out[3] = Math.floor(a[3]);\n return out;\n}\n\n/**\n * Returns the minimum of two vec4's\n *\n * @param {vec4} out the receiving vector\n * @param {vec4} a the first operand\n * @param {vec4} b the second operand\n * @returns {vec4} out\n */\nexport function min(out, a, b) {\n out[0] = Math.min(a[0], b[0]);\n out[1] = Math.min(a[1], b[1]);\n out[2] = Math.min(a[2], b[2]);\n out[3] = Math.min(a[3], b[3]);\n return out;\n}\n\n/**\n * Returns the maximum of two vec4's\n *\n * @param {vec4} out the receiving vector\n * @param {vec4} a the first operand\n * @param {vec4} b the second operand\n * @returns {vec4} out\n */\nexport function max(out, a, b) {\n out[0] = Math.max(a[0], b[0]);\n out[1] = Math.max(a[1], b[1]);\n out[2] = Math.max(a[2], b[2]);\n out[3] = Math.max(a[3], b[3]);\n return out;\n}\n\n/**\n * Math.round the components of a vec4\n *\n * @param {vec4} out the receiving vector\n * @param {vec4} a vector to round\n * @returns {vec4} out\n */\nexport function round(out, a) {\n out[0] = Math.round(a[0]);\n out[1] = Math.round(a[1]);\n out[2] = Math.round(a[2]);\n out[3] = Math.round(a[3]);\n return out;\n}\n\n/**\n * Scales a vec4 by a scalar number\n *\n * @param {vec4} out the receiving vector\n * @param {vec4} a the vector to scale\n * @param {Number} b amount to scale the vector by\n * @returns {vec4} out\n */\nexport function scale(out, a, b) {\n out[0] = a[0] * b;\n out[1] = a[1] * b;\n out[2] = a[2] * b;\n out[3] = a[3] * b;\n return out;\n}\n\n/**\n * Adds two vec4's after scaling the second operand by a scalar value\n *\n * @param {vec4} out the receiving vector\n * @param {vec4} a the first operand\n * @param {vec4} b the second operand\n * @param {Number} scale the amount to scale b by before adding\n * @returns {vec4} out\n */\nexport function scaleAndAdd(out, a, b, scale) {\n out[0] = a[0] + (b[0] * scale);\n out[1] = a[1] + (b[1] * scale);\n out[2] = a[2] + (b[2] * scale);\n out[3] = a[3] + (b[3] * scale);\n return out;\n}\n\n/**\n * Calculates the euclidian distance between two vec4's\n *\n * @param {vec4} a the first operand\n * @param {vec4} b the second operand\n * @returns {Number} distance between a and b\n */\nexport function distance(a, b) {\n let x = b[0] - a[0];\n let y = b[1] - a[1];\n let z = b[2] - a[2];\n let w = b[3] - a[3];\n return Math.sqrt(x*x + y*y + z*z + w*w);\n}\n\n/**\n * Calculates the squared euclidian distance between two vec4's\n *\n * @param {vec4} a the first operand\n * @param {vec4} b the second operand\n * @returns {Number} squared distance between a and b\n */\nexport function squaredDistance(a, b) {\n let x = b[0] - a[0];\n let y = b[1] - a[1];\n let z = b[2] - a[2];\n let w = b[3] - a[3];\n return x*x + y*y + z*z + w*w;\n}\n\n/**\n * Calculates the length of a vec4\n *\n * @param {vec4} a vector to calculate length of\n * @returns {Number} length of a\n */\nexport function length(a) {\n let x = a[0];\n let y = a[1];\n let z = a[2];\n let w = a[3];\n return Math.sqrt(x*x + y*y + z*z + w*w);\n}\n\n/**\n * Calculates the squared length of a vec4\n *\n * @param {vec4} a vector to calculate squared length of\n * @returns {Number} squared length of a\n */\nexport function squaredLength(a) {\n let x = a[0];\n let y = a[1];\n let z = a[2];\n let w = a[3];\n return x*x + y*y + z*z + w*w;\n}\n\n/**\n * Negates the components of a vec4\n *\n * @param {vec4} out the receiving vector\n * @param {vec4} a vector to negate\n * @returns {vec4} out\n */\nexport function negate(out, a) {\n out[0] = -a[0];\n out[1] = -a[1];\n out[2] = -a[2];\n out[3] = -a[3];\n return out;\n}\n\n/**\n * Returns the inverse of the components of a vec4\n *\n * @param {vec4} out the receiving vector\n * @param {vec4} a vector to invert\n * @returns {vec4} out\n */\nexport function inverse(out, a) {\n out[0] = 1.0 / a[0];\n out[1] = 1.0 / a[1];\n out[2] = 1.0 / a[2];\n out[3] = 1.0 / a[3];\n return out;\n}\n\n/**\n * Normalize a vec4\n *\n * @param {vec4} out the receiving vector\n * @param {vec4} a vector to normalize\n * @returns {vec4} out\n */\nexport function normalize(out, a) {\n let x = a[0];\n let y = a[1];\n let z = a[2];\n let w = a[3];\n let len = x*x + y*y + z*z + w*w;\n if (len > 0) {\n len = 1 / Math.sqrt(len);\n out[0] = x * len;\n out[1] = y * len;\n out[2] = z * len;\n out[3] = w * len;\n }\n return out;\n}\n\n/**\n * Calculates the dot product of two vec4's\n *\n * @param {vec4} a the first operand\n * @param {vec4} b the second operand\n * @returns {Number} dot product of a and b\n */\nexport function dot(a, b) {\n return a[0] * b[0] + a[1] * b[1] + a[2] * b[2] + a[3] * b[3];\n}\n\n/**\n * Performs a linear interpolation between two vec4's\n *\n * @param {vec4} out the receiving vector\n * @param {vec4} a the first operand\n * @param {vec4} b the second operand\n * @param {Number} t interpolation amount between the two inputs\n * @returns {vec4} out\n */\nexport function lerp(out, a, b, t) {\n let ax = a[0];\n let ay = a[1];\n let az = a[2];\n let aw = a[3];\n out[0] = ax + t * (b[0] - ax);\n out[1] = ay + t * (b[1] - ay);\n out[2] = az + t * (b[2] - az);\n out[3] = aw + t * (b[3] - aw);\n return out;\n}\n\n/**\n * Generates a random vector with the given scale\n *\n * @param {vec4} out the receiving vector\n * @param {Number} [scale] Length of the resulting vector. If ommitted, a unit vector will be returned\n * @returns {vec4} out\n */\nexport function random(out, vectorScale) {\n vectorScale = vectorScale || 1.0;\n\n //TODO: This is a pretty awful way of doing this. Find something better.\n out[0] = glMatrix.RANDOM();\n out[1] = glMatrix.RANDOM();\n out[2] = glMatrix.RANDOM();\n out[3] = glMatrix.RANDOM();\n normalize(out, out);\n scale(out, out, vectorScale);\n return out;\n}\n\n/**\n * Transforms the vec4 with a mat4.\n *\n * @param {vec4} out the receiving vector\n * @param {vec4} a the vector to transform\n * @param {mat4} m matrix to transform with\n * @returns {vec4} out\n */\nexport function transformMat4(out, a, m) {\n let x = a[0], y = a[1], z = a[2], w = a[3];\n out[0] = m[0] * x + m[4] * y + m[8] * z + m[12] * w;\n out[1] = m[1] * x + m[5] * y + m[9] * z + m[13] * w;\n out[2] = m[2] * x + m[6] * y + m[10] * z + m[14] * w;\n out[3] = m[3] * x + m[7] * y + m[11] * z + m[15] * w;\n return out;\n}\n\n/**\n * Transforms the vec4 with a quat\n *\n * @param {vec4} out the receiving vector\n * @param {vec4} a the vector to transform\n * @param {quat} q quaternion to transform with\n * @returns {vec4} out\n */\nexport function transformQuat(out, a, q) {\n let x = a[0], y = a[1], z = a[2];\n let qx = q[0], qy = q[1], qz = q[2], qw = q[3];\n\n // calculate quat * vec\n let ix = qw * x + qy * z - qz * y;\n let iy = qw * y + qz * x - qx * z;\n let iz = qw * z + qx * y - qy * x;\n let iw = -qx * x - qy * y - qz * z;\n\n // calculate result * inverse quat\n out[0] = ix * qw + iw * -qx + iy * -qz - iz * -qy;\n out[1] = iy * qw + iw * -qy + iz * -qx - ix * -qz;\n out[2] = iz * qw + iw * -qz + ix * -qy - iy * -qx;\n out[3] = a[3];\n return out;\n}\n\n/**\n * Returns a string representation of a vector\n *\n * @param {vec4} a vector to represent as a string\n * @returns {String} string representation of the vector\n */\nexport function str(a) {\n return 'vec4(' + a[0] + ', ' + a[1] + ', ' + a[2] + ', ' + a[3] + ')';\n}\n\n/**\n * Returns whether or not the vectors have exactly the same elements in the same position (when compared with ===)\n *\n * @param {vec4} a The first vector.\n * @param {vec4} b The second vector.\n * @returns {Boolean} True if the vectors are equal, false otherwise.\n */\nexport function exactEquals(a, b) {\n return a[0] === b[0] && a[1] === b[1] && a[2] === b[2] && a[3] === b[3];\n}\n\n/**\n * Returns whether or not the vectors have approximately the same elements in the same position.\n *\n * @param {vec4} a The first vector.\n * @param {vec4} b The second vector.\n * @returns {Boolean} True if the vectors are equal, false otherwise.\n */\nexport function equals(a, b) {\n let a0 = a[0], a1 = a[1], a2 = a[2], a3 = a[3];\n let b0 = b[0], b1 = b[1], b2 = b[2], b3 = b[3];\n return (Math.abs(a0 - b0) <= glMatrix.EPSILON*Math.max(1.0, Math.abs(a0), Math.abs(b0)) &&\n Math.abs(a1 - b1) <= glMatrix.EPSILON*Math.max(1.0, Math.abs(a1), Math.abs(b1)) &&\n Math.abs(a2 - b2) <= glMatrix.EPSILON*Math.max(1.0, Math.abs(a2), Math.abs(b2)) &&\n Math.abs(a3 - b3) <= glMatrix.EPSILON*Math.max(1.0, Math.abs(a3), Math.abs(b3)));\n}\n\n/**\n * Alias for {@link vec4.subtract}\n * @function\n */\nexport const sub = subtract;\n\n/**\n * Alias for {@link vec4.multiply}\n * @function\n */\nexport const mul = multiply;\n\n/**\n * Alias for {@link vec4.divide}\n * @function\n */\nexport const div = divide;\n\n/**\n * Alias for {@link vec4.distance}\n * @function\n */\nexport const dist = distance;\n\n/**\n * Alias for {@link vec4.squaredDistance}\n * @function\n */\nexport const sqrDist = squaredDistance;\n\n/**\n * Alias for {@link vec4.length}\n * @function\n */\nexport const len = length;\n\n/**\n * Alias for {@link vec4.squaredLength}\n * @function\n */\nexport const sqrLen = squaredLength;\n\n/**\n * Perform some operation over an array of vec4s.\n *\n * @param {Array} a the array of vectors to iterate over\n * @param {Number} stride Number of elements between the start of each vec4. If 0 assumes tightly packed\n * @param {Number} offset Number of elements to skip at the beginning of the array\n * @param {Number} count Number of vec4s to iterate over. If 0 iterates over entire array\n * @param {Function} fn Function to call for each vector in the array\n * @param {Object} [arg] additional argument to pass to fn\n * @returns {Array} a\n * @function\n */\nexport const forEach = (function() {\n let vec = create();\n\n return function(a, stride, offset, count, fn, arg) {\n let i, l;\n if(!stride) {\n stride = 4;\n }\n\n if(!offset) {\n offset = 0;\n }\n\n if(count) {\n l = Math.min((count * stride) + offset, a.length);\n } else {\n l = a.length;\n }\n\n for(i = offset; i < l; i += stride) {\n vec[0] = a[i]; vec[1] = a[i+1]; vec[2] = a[i+2]; vec[3] = a[i+3];\n fn(vec, vec, arg);\n a[i] = vec[0]; a[i+1] = vec[1]; a[i+2] = vec[2]; a[i+3] = vec[3];\n }\n\n return a;\n };\n})();\n\n\n\n//////////////////\n// WEBPACK FOOTER\n// ./node_modules/gl-matrix/src/gl-matrix/vec4.js\n// module id = 7\n// module chunks = 0","import {gl} from '../../globals';\r\n\r\nabstract class Drawable {\r\n count: number = 0;\r\n\r\n bufIdx: WebGLBuffer;\r\n bufPos: WebGLBuffer;\r\n bufNor: WebGLBuffer;\r\n\r\n idxBound: boolean = false;\r\n posBound: boolean = false;\r\n norBound: boolean = false;\r\n\r\n abstract create() : void;\r\n\r\n destory() {\r\n gl.deleteBuffer(this.bufIdx);\r\n gl.deleteBuffer(this.bufPos);\r\n gl.deleteBuffer(this.bufNor);\r\n }\r\n\r\n generateIdx() {\r\n this.idxBound = true;\r\n this.bufIdx = gl.createBuffer();\r\n }\r\n\r\n generatePos() {\r\n this.posBound = true;\r\n this.bufPos = gl.createBuffer();\r\n }\r\n\r\n generateNor() {\r\n this.norBound = true;\r\n this.bufNor = gl.createBuffer();\r\n }\r\n\r\n bindIdx(): boolean {\r\n if (this.idxBound) {\r\n gl.bindBuffer(gl.ELEMENT_ARRAY_BUFFER, this.bufIdx);\r\n }\r\n return this.idxBound;\r\n }\r\n\r\n bindPos(): boolean {\r\n if (this.posBound) {\r\n gl.bindBuffer(gl.ARRAY_BUFFER, this.bufPos);\r\n }\r\n return this.posBound;\r\n }\r\n\r\n bindNor(): boolean {\r\n if (this.norBound) {\r\n gl.bindBuffer(gl.ARRAY_BUFFER, this.bufNor);\r\n }\r\n return this.norBound;\r\n }\r\n\r\n elemCount(): number {\r\n return this.count;\r\n }\r\n\r\n drawMode(): GLenum {\r\n return gl.TRIANGLES;\r\n }\r\n};\r\n\r\nexport default Drawable;\r\n\n\n\n// WEBPACK FOOTER //\n// ./src/rendering/gl/Drawable.ts","'use strict'\n\nmodule.exports = createFilteredVector\n\nvar cubicHermite = require('cubic-hermite')\nvar bsearch = require('binary-search-bounds')\n\nfunction clamp(lo, hi, x) {\n return Math.min(hi, Math.max(lo, x))\n}\n\nfunction FilteredVector(state0, velocity0, t0) {\n this.dimension = state0.length\n this.bounds = [ new Array(this.dimension), new Array(this.dimension) ]\n for(var i=0; i= n-1) {\n var ptr = state.length-1\n var tf = t - time[n-1]\n for(var i=0; i= n-1) {\n var ptr = state.length-1\n var tf = t - time[n-1]\n for(var i=0; i=0; --i) {\n if(velocity[--ptr]) {\n return false\n }\n }\n return true\n}\n\nproto.jump = function(t) {\n var t0 = this.lastT()\n var d = this.dimension\n if(t < t0 || arguments.length !== d+1) {\n return\n }\n var state = this._state\n var velocity = this._velocity\n var ptr = state.length-this.dimension\n var bounds = this.bounds\n var lo = bounds[0]\n var hi = bounds[1]\n this._time.push(t0, t)\n for(var j=0; j<2; ++j) {\n for(var i=0; i0; --i) {\n state.push(clamp(lo[i-1], hi[i-1], arguments[i]))\n velocity.push(0)\n }\n}\n\nproto.push = function(t) {\n var t0 = this.lastT()\n var d = this.dimension\n if(t < t0 || arguments.length !== d+1) {\n return\n }\n var state = this._state\n var velocity = this._velocity\n var ptr = state.length-this.dimension\n var dt = t - t0\n var bounds = this.bounds\n var lo = bounds[0]\n var hi = bounds[1]\n var sf = (dt > 1e-6) ? 1/dt : 0\n this._time.push(t)\n for(var i=d; i>0; --i) {\n var xc = clamp(lo[i-1], hi[i-1], arguments[i])\n state.push(xc)\n velocity.push((xc - state[ptr++]) * sf)\n }\n}\n\nproto.set = function(t) {\n var d = this.dimension\n if(t < this.lastT() || arguments.length !== d+1) {\n return\n }\n var state = this._state\n var velocity = this._velocity\n var bounds = this.bounds\n var lo = bounds[0]\n var hi = bounds[1]\n this._time.push(t)\n for(var i=d; i>0; --i) {\n state.push(clamp(lo[i-1], hi[i-1], arguments[i]))\n velocity.push(0)\n }\n}\n\nproto.move = function(t) {\n var t0 = this.lastT()\n var d = this.dimension\n if(t <= t0 || arguments.length !== d+1) {\n return\n }\n var state = this._state\n var velocity = this._velocity\n var statePtr = state.length - this.dimension\n var bounds = this.bounds\n var lo = bounds[0]\n var hi = bounds[1]\n var dt = t - t0\n var sf = (dt > 1e-6) ? 1/dt : 0.0\n this._time.push(t)\n for(var i=d; i>0; --i) {\n var dx = arguments[i]\n state.push(clamp(lo[i-1], hi[i-1], state[statePtr++] + dx))\n velocity.push(dx * sf)\n }\n}\n\nproto.idle = function(t) {\n var t0 = this.lastT()\n if(t < t0) {\n return\n }\n var d = this.dimension\n var state = this._state\n var velocity = this._velocity\n var statePtr = state.length-d\n var bounds = this.bounds\n var lo = bounds[0]\n var hi = bounds[1]\n var dt = t - t0\n this._time.push(t)\n for(var i=d-1; i>=0; --i) {\n state.push(clamp(lo[i], hi[i], state[statePtr] + dt * velocity[statePtr]))\n velocity.push(0)\n statePtr += 1\n }\n}\n\nfunction getZero(d) {\n var result = new Array(d)\n for(var i=0; i>>1,x=a\", useNdarray ? \".get(m)\" : \"[m]\"]\n if(earlyOut) {\n if(predicate.indexOf(\"c\") < 0) {\n code.push(\";if(x===y){return m}else if(x<=y){\")\n } else {\n code.push(\";var p=c(x,y);if(p===0){return m}else if(p<=0){\")\n }\n } else {\n code.push(\";if(\", predicate, \"){i=m;\")\n }\n if(reversed) {\n code.push(\"l=m+1}else{h=m-1}\")\n } else {\n code.push(\"h=m-1}else{l=m+1}\")\n }\n code.push(\"}\")\n if(earlyOut) {\n code.push(\"return -1};\")\n } else {\n code.push(\"return i};\")\n }\n return code.join(\"\")\n}\n\nfunction compileBoundsSearch(predicate, reversed, suffix, earlyOut) {\n var result = new Function([\n compileSearch(\"A\", \"x\" + predicate + \"y\", reversed, [\"y\"], false, earlyOut),\n compileSearch(\"B\", \"x\" + predicate + \"y\", reversed, [\"y\"], true, earlyOut),\n compileSearch(\"P\", \"c(x,y)\" + predicate + \"0\", reversed, [\"y\", \"c\"], false, earlyOut),\n compileSearch(\"Q\", \"c(x,y)\" + predicate + \"0\", reversed, [\"y\", \"c\"], true, earlyOut),\n\"function dispatchBsearch\", suffix, \"(a,y,c,l,h){\\\nif(a.shape){\\\nif(typeof(c)==='function'){\\\nreturn Q(a,(l===undefined)?0:l|0,(h===undefined)?a.shape[0]-1:h|0,y,c)\\\n}else{\\\nreturn B(a,(c===undefined)?0:c|0,(l===undefined)?a.shape[0]-1:l|0,y)\\\n}}else{\\\nif(typeof(c)==='function'){\\\nreturn P(a,(l===undefined)?0:l|0,(h===undefined)?a.length-1:h|0,y,c)\\\n}else{\\\nreturn A(a,(c===undefined)?0:c|0,(l===undefined)?a.length-1:l|0,y)\\\n}}}\\\nreturn dispatchBsearch\", suffix].join(\"\"))\n return result()\n}\n\nmodule.exports = {\n ge: compileBoundsSearch(\">=\", false, \"GE\"),\n gt: compileBoundsSearch(\">\", false, \"GT\"),\n lt: compileBoundsSearch(\"<\", true, \"LT\"),\n le: compileBoundsSearch(\"<=\", true, \"LE\"),\n eq: compileBoundsSearch(\"-\", true, \"EQ\", true)\n}\n\n\n\n//////////////////\n// WEBPACK FOOTER\n// ./node_modules/binary-search-bounds/search-bounds.js\n// module id = 10\n// module chunks = 0","module.exports = cross;\n\n/**\n * Computes the cross product of two vec3's\n *\n * @param {vec3} out the receiving vector\n * @param {vec3} a the first operand\n * @param {vec3} b the second operand\n * @returns {vec3} out\n */\nfunction cross(out, a, b) {\n var ax = a[0], ay = a[1], az = a[2],\n bx = b[0], by = b[1], bz = b[2]\n\n out[0] = ay * bz - az * by\n out[1] = az * bx - ax * bz\n out[2] = ax * by - ay * bx\n return out\n}\n\n\n//////////////////\n// WEBPACK FOOTER\n// ./node_modules/gl-vec3/cross.js\n// module id = 11\n// module chunks = 0","module.exports = dot;\n\n/**\n * Calculates the dot product of two vec3's\n *\n * @param {vec3} a the first operand\n * @param {vec3} b the second operand\n * @returns {Number} dot product of a and b\n */\nfunction dot(a, b) {\n return a[0] * b[0] + a[1] * b[1] + a[2] * b[2]\n}\n\n\n//////////////////\n// WEBPACK FOOTER\n// ./node_modules/gl-vec3/dot.js\n// module id = 12\n// module chunks = 0","var identity = require('./identity');\n\nmodule.exports = lookAt;\n\n/**\n * Generates a look-at matrix with the given eye position, focal point, and up axis\n *\n * @param {mat4} out mat4 frustum matrix will be written into\n * @param {vec3} eye Position of the viewer\n * @param {vec3} center Point the viewer is looking at\n * @param {vec3} up vec3 pointing up\n * @returns {mat4} out\n */\nfunction lookAt(out, eye, center, up) {\n var x0, x1, x2, y0, y1, y2, z0, z1, z2, len,\n eyex = eye[0],\n eyey = eye[1],\n eyez = eye[2],\n upx = up[0],\n upy = up[1],\n upz = up[2],\n centerx = center[0],\n centery = center[1],\n centerz = center[2];\n\n if (Math.abs(eyex - centerx) < 0.000001 &&\n Math.abs(eyey - centery) < 0.000001 &&\n Math.abs(eyez - centerz) < 0.000001) {\n return identity(out);\n }\n\n z0 = eyex - centerx;\n z1 = eyey - centery;\n z2 = eyez - centerz;\n\n len = 1 / Math.sqrt(z0 * z0 + z1 * z1 + z2 * z2);\n z0 *= len;\n z1 *= len;\n z2 *= len;\n\n x0 = upy * z2 - upz * z1;\n x1 = upz * z0 - upx * z2;\n x2 = upx * z1 - upy * z0;\n len = Math.sqrt(x0 * x0 + x1 * x1 + x2 * x2);\n if (!len) {\n x0 = 0;\n x1 = 0;\n x2 = 0;\n } else {\n len = 1 / len;\n x0 *= len;\n x1 *= len;\n x2 *= len;\n }\n\n y0 = z1 * x2 - z2 * x1;\n y1 = z2 * x0 - z0 * x2;\n y2 = z0 * x1 - z1 * x0;\n\n len = Math.sqrt(y0 * y0 + y1 * y1 + y2 * y2);\n if (!len) {\n y0 = 0;\n y1 = 0;\n y2 = 0;\n } else {\n len = 1 / len;\n y0 *= len;\n y1 *= len;\n y2 *= len;\n }\n\n out[0] = x0;\n out[1] = y0;\n out[2] = z0;\n out[3] = 0;\n out[4] = x1;\n out[5] = y1;\n out[6] = z1;\n out[7] = 0;\n out[8] = x2;\n out[9] = y2;\n out[10] = z2;\n out[11] = 0;\n out[12] = -(x0 * eyex + x1 * eyey + x2 * eyez);\n out[13] = -(y0 * eyex + y1 * eyey + y2 * eyez);\n out[14] = -(z0 * eyex + z1 * eyey + z2 * eyez);\n out[15] = 1;\n\n return out;\n};\n\n\n//////////////////\n// WEBPACK FOOTER\n// ./node_modules/gl-mat4/lookAt.js\n// module id = 13\n// module chunks = 0","module.exports = identity;\n\n/**\n * Set a mat4 to the identity matrix\n *\n * @param {mat4} out the receiving matrix\n * @returns {mat4} out\n */\nfunction identity(out) {\n out[0] = 1;\n out[1] = 0;\n out[2] = 0;\n out[3] = 0;\n out[4] = 0;\n out[5] = 1;\n out[6] = 0;\n out[7] = 0;\n out[8] = 0;\n out[9] = 0;\n out[10] = 1;\n out[11] = 0;\n out[12] = 0;\n out[13] = 0;\n out[14] = 0;\n out[15] = 1;\n return out;\n};\n\n\n//////////////////\n// WEBPACK FOOTER\n// ./node_modules/gl-mat4/identity.js\n// module id = 14\n// module chunks = 0","module.exports = translate;\n\n/**\n * Translate a mat4 by the given vector\n *\n * @param {mat4} out the receiving matrix\n * @param {mat4} a the matrix to translate\n * @param {vec3} v vector to translate by\n * @returns {mat4} out\n */\nfunction translate(out, a, v) {\n var x = v[0], y = v[1], z = v[2],\n a00, a01, a02, a03,\n a10, a11, a12, a13,\n a20, a21, a22, a23;\n\n if (a === out) {\n out[12] = a[0] * x + a[4] * y + a[8] * z + a[12];\n out[13] = a[1] * x + a[5] * y + a[9] * z + a[13];\n out[14] = a[2] * x + a[6] * y + a[10] * z + a[14];\n out[15] = a[3] * x + a[7] * y + a[11] * z + a[15];\n } else {\n a00 = a[0]; a01 = a[1]; a02 = a[2]; a03 = a[3];\n a10 = a[4]; a11 = a[5]; a12 = a[6]; a13 = a[7];\n a20 = a[8]; a21 = a[9]; a22 = a[10]; a23 = a[11];\n\n out[0] = a00; out[1] = a01; out[2] = a02; out[3] = a03;\n out[4] = a10; out[5] = a11; out[6] = a12; out[7] = a13;\n out[8] = a20; out[9] = a21; out[10] = a22; out[11] = a23;\n\n out[12] = a00 * x + a10 * y + a20 * z + a[12];\n out[13] = a01 * x + a11 * y + a21 * z + a[13];\n out[14] = a02 * x + a12 * y + a22 * z + a[14];\n out[15] = a03 * x + a13 * y + a23 * z + a[15];\n }\n\n return out;\n};\n\n\n//////////////////\n// WEBPACK FOOTER\n// ./node_modules/gl-mat4/translate.js\n// module id = 15\n// module chunks = 0","module.exports = create;\n\n/**\n * Creates a new identity mat4\n *\n * @returns {mat4} a new 4x4 matrix\n */\nfunction create() {\n var out = new Float32Array(16);\n out[0] = 1;\n out[1] = 0;\n out[2] = 0;\n out[3] = 0;\n out[4] = 0;\n out[5] = 1;\n out[6] = 0;\n out[7] = 0;\n out[8] = 0;\n out[9] = 0;\n out[10] = 1;\n out[11] = 0;\n out[12] = 0;\n out[13] = 0;\n out[14] = 0;\n out[15] = 1;\n return out;\n};\n\n\n//////////////////\n// WEBPACK FOOTER\n// ./node_modules/gl-mat4/create.js\n// module id = 16\n// module chunks = 0","module.exports = scale;\n\n/**\n * Scales the mat4 by the dimensions in the given vec3\n *\n * @param {mat4} out the receiving matrix\n * @param {mat4} a the matrix to scale\n * @param {vec3} v the vec3 to scale the matrix by\n * @returns {mat4} out\n **/\nfunction scale(out, a, v) {\n var x = v[0], y = v[1], z = v[2];\n\n out[0] = a[0] * x;\n out[1] = a[1] * x;\n out[2] = a[2] * x;\n out[3] = a[3] * x;\n out[4] = a[4] * y;\n out[5] = a[5] * y;\n out[6] = a[6] * y;\n out[7] = a[7] * y;\n out[8] = a[8] * z;\n out[9] = a[9] * z;\n out[10] = a[10] * z;\n out[11] = a[11] * z;\n out[12] = a[12];\n out[13] = a[13];\n out[14] = a[14];\n out[15] = a[15];\n return out;\n};\n\n\n//////////////////\n// WEBPACK FOOTER\n// ./node_modules/gl-mat4/scale.js\n// module id = 17\n// module chunks = 0","module.exports = determinant;\n\n/**\n * Calculates the determinant of a mat4\n *\n * @param {mat4} a the source matrix\n * @returns {Number} determinant of a\n */\nfunction determinant(a) {\n var a00 = a[0], a01 = a[1], a02 = a[2], a03 = a[3],\n a10 = a[4], a11 = a[5], a12 = a[6], a13 = a[7],\n a20 = a[8], a21 = a[9], a22 = a[10], a23 = a[11],\n a30 = a[12], a31 = a[13], a32 = a[14], a33 = a[15],\n\n b00 = a00 * a11 - a01 * a10,\n b01 = a00 * a12 - a02 * a10,\n b02 = a00 * a13 - a03 * a10,\n b03 = a01 * a12 - a02 * a11,\n b04 = a01 * a13 - a03 * a11,\n b05 = a02 * a13 - a03 * a12,\n b06 = a20 * a31 - a21 * a30,\n b07 = a20 * a32 - a22 * a30,\n b08 = a20 * a33 - a23 * a30,\n b09 = a21 * a32 - a22 * a31,\n b10 = a21 * a33 - a23 * a31,\n b11 = a22 * a33 - a23 * a32;\n\n // Calculate the determinant\n return b00 * b11 - b01 * b10 + b02 * b09 + b03 * b08 - b04 * b07 + b05 * b06;\n};\n\n\n//////////////////\n// WEBPACK FOOTER\n// ./node_modules/gl-mat4/determinant.js\n// module id = 18\n// module chunks = 0","import {vec3} from 'gl-matrix';\r\nimport * as Stats from 'stats-js';\r\nimport * as DAT from 'dat-gui';\r\nimport Icosphere from './geometry/Icosphere';\r\nimport Square from './geometry/Square';\r\nimport OpenGLRenderer from './rendering/gl/OpenGLRenderer';\r\nimport Camera from './Camera';\r\nimport {setGL} from './globals';\r\nimport ShaderProgram, {Shader} from './rendering/gl/ShaderProgram';\r\n\r\n// Define an object with application parameters and button callbacks\r\n// This will be referred to by dat.GUI's functions that add GUI elements.\r\nconst controls = {\r\n tesselations: 5,\r\n 'Load Scene': loadScene, // A function pointer, essentially\r\n};\r\n\r\nlet icosphere: Icosphere;\r\nlet square: Square;\r\nlet prevTesselations: number = 5;\r\n\r\nfunction loadScene() {\r\n icosphere = new Icosphere(vec3.fromValues(0, 0, 0), 1, controls.tesselations);\r\n icosphere.create();\r\n square = new Square(vec3.fromValues(0, 0, 0));\r\n square.create();\r\n}\r\n\r\nfunction main() {\r\n // Initial display for framerate\r\n const stats = Stats();\r\n stats.setMode(0);\r\n stats.domElement.style.position = 'absolute';\r\n stats.domElement.style.left = '0px';\r\n stats.domElement.style.top = '0px';\r\n document.body.appendChild(stats.domElement);\r\n\r\n // Add controls to the gui\r\n const gui = new DAT.GUI();\r\n gui.add(controls, 'tesselations', 0, 8).step(1);\r\n gui.add(controls, 'Load Scene');\r\n\r\n // get canvas and webgl context\r\n const canvas = document.getElementById('canvas');\r\n const gl = canvas.getContext('webgl2');\r\n if (!gl) {\r\n alert('WebGL 2 not supported!');\r\n }\r\n // `setGL` is a function imported above which sets the value of `gl` in the `globals.ts` module.\r\n // Later, we can import `gl` from `globals.ts` to access it\r\n setGL(gl);\r\n\r\n // Initial call to load scene\r\n loadScene();\r\n\r\n const camera = new Camera(vec3.fromValues(0, 0, 5), vec3.fromValues(0, 0, 0));\r\n\r\n const renderer = new OpenGLRenderer(canvas);\r\n renderer.setClearColor(0.2, 0.2, 0.2, 1);\r\n gl.enable(gl.DEPTH_TEST);\r\n\r\n const lambert = new ShaderProgram([\r\n new Shader(gl.VERTEX_SHADER, require('./shaders/lambert-vert.glsl')),\r\n new Shader(gl.FRAGMENT_SHADER, require('./shaders/lambert-frag.glsl')),\r\n ]);\r\n\r\n // This function will be called every frame\r\n function tick() {\r\n camera.update();\r\n stats.begin();\r\n gl.viewport(0, 0, window.innerWidth, window.innerHeight);\r\n renderer.clear();\r\n if(controls.tesselations != prevTesselations)\r\n {\r\n prevTesselations = controls.tesselations;\r\n console.log(`controls.tesselations`);\r\n icosphere = new Icosphere(vec3.fromValues(0, 0, 0), 1, prevTesselations);\r\n icosphere.create();\r\n }\r\n renderer.render(camera, lambert, [\r\n icosphere,\r\n // square,\r\n ]);\r\n stats.end();\r\n\r\n // Tell the browser to call `tick` again whenever it renders a new frame\r\n requestAnimationFrame(tick);\r\n }\r\n\r\n window.addEventListener('resize', function() {\r\n renderer.setSize(window.innerWidth, window.innerHeight);\r\n camera.setAspectRatio(window.innerWidth / window.innerHeight);\r\n camera.updateProjectionMatrix();\r\n }, false);\r\n\r\n renderer.setSize(window.innerWidth, window.innerHeight);\r\n camera.setAspectRatio(window.innerWidth / window.innerHeight);\r\n camera.updateProjectionMatrix();\r\n\r\n // Start the render loop\r\n tick();\r\n}\r\n\r\nmain();\r\n\n\n\n// WEBPACK FOOTER //\n// ./src/main.ts","/* Copyright (c) 2015, Brandon Jones, Colin MacKenzie IV.\n\nPermission is hereby granted, free of charge, to any person obtaining a copy\nof this software and associated documentation files (the \"Software\"), to deal\nin the Software without restriction, including without limitation the rights\nto use, copy, modify, merge, publish, distribute, sublicense, and/or sell\ncopies of the Software, and to permit persons to whom the Software is\nfurnished to do so, subject to the following conditions:\n\nThe above copyright notice and this permission notice shall be included in\nall copies or substantial portions of the Software.\n\nTHE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\nIMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\nFITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE\nAUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\nLIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,\nOUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN\nTHE SOFTWARE. */\n\nimport * as glMatrix from \"./common\"\n\n/**\n * 2x2 Matrix\n * @module mat2\n */\n\n/**\n * Creates a new identity mat2\n *\n * @returns {mat2} a new 2x2 matrix\n */\nexport function create() {\n let out = new glMatrix.ARRAY_TYPE(4);\n out[0] = 1;\n out[1] = 0;\n out[2] = 0;\n out[3] = 1;\n return out;\n}\n\n/**\n * Creates a new mat2 initialized with values from an existing matrix\n *\n * @param {mat2} a matrix to clone\n * @returns {mat2} a new 2x2 matrix\n */\nexport function clone(a) {\n let out = new glMatrix.ARRAY_TYPE(4);\n out[0] = a[0];\n out[1] = a[1];\n out[2] = a[2];\n out[3] = a[3];\n return out;\n}\n\n/**\n * Copy the values from one mat2 to another\n *\n * @param {mat2} out the receiving matrix\n * @param {mat2} a the source matrix\n * @returns {mat2} out\n */\nexport function copy(out, a) {\n out[0] = a[0];\n out[1] = a[1];\n out[2] = a[2];\n out[3] = a[3];\n return out;\n}\n\n/**\n * Set a mat2 to the identity matrix\n *\n * @param {mat2} out the receiving matrix\n * @returns {mat2} out\n */\nexport function identity(out) {\n out[0] = 1;\n out[1] = 0;\n out[2] = 0;\n out[3] = 1;\n return out;\n}\n\n/**\n * Create a new mat2 with the given values\n *\n * @param {Number} m00 Component in column 0, row 0 position (index 0)\n * @param {Number} m01 Component in column 0, row 1 position (index 1)\n * @param {Number} m10 Component in column 1, row 0 position (index 2)\n * @param {Number} m11 Component in column 1, row 1 position (index 3)\n * @returns {mat2} out A new 2x2 matrix\n */\nexport function fromValues(m00, m01, m10, m11) {\n let out = new glMatrix.ARRAY_TYPE(4);\n out[0] = m00;\n out[1] = m01;\n out[2] = m10;\n out[3] = m11;\n return out;\n}\n\n/**\n * Set the components of a mat2 to the given values\n *\n * @param {mat2} out the receiving matrix\n * @param {Number} m00 Component in column 0, row 0 position (index 0)\n * @param {Number} m01 Component in column 0, row 1 position (index 1)\n * @param {Number} m10 Component in column 1, row 0 position (index 2)\n * @param {Number} m11 Component in column 1, row 1 position (index 3)\n * @returns {mat2} out\n */\nexport function set(out, m00, m01, m10, m11) {\n out[0] = m00;\n out[1] = m01;\n out[2] = m10;\n out[3] = m11;\n return out;\n}\n\n/**\n * Transpose the values of a mat2\n *\n * @param {mat2} out the receiving matrix\n * @param {mat2} a the source matrix\n * @returns {mat2} out\n */\nexport function transpose(out, a) {\n // If we are transposing ourselves we can skip a few steps but have to cache\n // some values\n if (out === a) {\n let a1 = a[1];\n out[1] = a[2];\n out[2] = a1;\n } else {\n out[0] = a[0];\n out[1] = a[2];\n out[2] = a[1];\n out[3] = a[3];\n }\n\n return out;\n}\n\n/**\n * Inverts a mat2\n *\n * @param {mat2} out the receiving matrix\n * @param {mat2} a the source matrix\n * @returns {mat2} out\n */\nexport function invert(out, a) {\n let a0 = a[0], a1 = a[1], a2 = a[2], a3 = a[3];\n\n // Calculate the determinant\n let det = a0 * a3 - a2 * a1;\n\n if (!det) {\n return null;\n }\n det = 1.0 / det;\n\n out[0] = a3 * det;\n out[1] = -a1 * det;\n out[2] = -a2 * det;\n out[3] = a0 * det;\n\n return out;\n}\n\n/**\n * Calculates the adjugate of a mat2\n *\n * @param {mat2} out the receiving matrix\n * @param {mat2} a the source matrix\n * @returns {mat2} out\n */\nexport function adjoint(out, a) {\n // Caching this value is nessecary if out == a\n let a0 = a[0];\n out[0] = a[3];\n out[1] = -a[1];\n out[2] = -a[2];\n out[3] = a0;\n\n return out;\n}\n\n/**\n * Calculates the determinant of a mat2\n *\n * @param {mat2} a the source matrix\n * @returns {Number} determinant of a\n */\nexport function determinant(a) {\n return a[0] * a[3] - a[2] * a[1];\n}\n\n/**\n * Multiplies two mat2's\n *\n * @param {mat2} out the receiving matrix\n * @param {mat2} a the first operand\n * @param {mat2} b the second operand\n * @returns {mat2} out\n */\nexport function multiply(out, a, b) {\n let a0 = a[0], a1 = a[1], a2 = a[2], a3 = a[3];\n let b0 = b[0], b1 = b[1], b2 = b[2], b3 = b[3];\n out[0] = a0 * b0 + a2 * b1;\n out[1] = a1 * b0 + a3 * b1;\n out[2] = a0 * b2 + a2 * b3;\n out[3] = a1 * b2 + a3 * b3;\n return out;\n}\n\n/**\n * Rotates a mat2 by the given angle\n *\n * @param {mat2} out the receiving matrix\n * @param {mat2} a the matrix to rotate\n * @param {Number} rad the angle to rotate the matrix by\n * @returns {mat2} out\n */\nexport function rotate(out, a, rad) {\n let a0 = a[0], a1 = a[1], a2 = a[2], a3 = a[3];\n let s = Math.sin(rad);\n let c = Math.cos(rad);\n out[0] = a0 * c + a2 * s;\n out[1] = a1 * c + a3 * s;\n out[2] = a0 * -s + a2 * c;\n out[3] = a1 * -s + a3 * c;\n return out;\n}\n\n/**\n * Scales the mat2 by the dimensions in the given vec2\n *\n * @param {mat2} out the receiving matrix\n * @param {mat2} a the matrix to rotate\n * @param {vec2} v the vec2 to scale the matrix by\n * @returns {mat2} out\n **/\nexport function scale(out, a, v) {\n let a0 = a[0], a1 = a[1], a2 = a[2], a3 = a[3];\n let v0 = v[0], v1 = v[1];\n out[0] = a0 * v0;\n out[1] = a1 * v0;\n out[2] = a2 * v1;\n out[3] = a3 * v1;\n return out;\n}\n\n/**\n * Creates a matrix from a given angle\n * This is equivalent to (but much faster than):\n *\n * mat2.identity(dest);\n * mat2.rotate(dest, dest, rad);\n *\n * @param {mat2} out mat2 receiving operation result\n * @param {Number} rad the angle to rotate the matrix by\n * @returns {mat2} out\n */\nexport function fromRotation(out, rad) {\n let s = Math.sin(rad);\n let c = Math.cos(rad);\n out[0] = c;\n out[1] = s;\n out[2] = -s;\n out[3] = c;\n return out;\n}\n\n/**\n * Creates a matrix from a vector scaling\n * This is equivalent to (but much faster than):\n *\n * mat2.identity(dest);\n * mat2.scale(dest, dest, vec);\n *\n * @param {mat2} out mat2 receiving operation result\n * @param {vec2} v Scaling vector\n * @returns {mat2} out\n */\nexport function fromScaling(out, v) {\n out[0] = v[0];\n out[1] = 0;\n out[2] = 0;\n out[3] = v[1];\n return out;\n}\n\n/**\n * Returns a string representation of a mat2\n *\n * @param {mat2} a matrix to represent as a string\n * @returns {String} string representation of the matrix\n */\nexport function str(a) {\n return 'mat2(' + a[0] + ', ' + a[1] + ', ' + a[2] + ', ' + a[3] + ')';\n}\n\n/**\n * Returns Frobenius norm of a mat2\n *\n * @param {mat2} a the matrix to calculate Frobenius norm of\n * @returns {Number} Frobenius norm\n */\nexport function frob(a) {\n return(Math.sqrt(Math.pow(a[0], 2) + Math.pow(a[1], 2) + Math.pow(a[2], 2) + Math.pow(a[3], 2)))\n}\n\n/**\n * Returns L, D and U matrices (Lower triangular, Diagonal and Upper triangular) by factorizing the input matrix\n * @param {mat2} L the lower triangular matrix\n * @param {mat2} D the diagonal matrix\n * @param {mat2} U the upper triangular matrix\n * @param {mat2} a the input matrix to factorize\n */\n\nexport function LDU(L, D, U, a) {\n L[2] = a[2]/a[0];\n U[0] = a[0];\n U[1] = a[1];\n U[3] = a[3] - L[2] * U[1];\n return [L, D, U];\n}\n\n/**\n * Adds two mat2's\n *\n * @param {mat2} out the receiving matrix\n * @param {mat2} a the first operand\n * @param {mat2} b the second operand\n * @returns {mat2} out\n */\nexport function add(out, a, b) {\n out[0] = a[0] + b[0];\n out[1] = a[1] + b[1];\n out[2] = a[2] + b[2];\n out[3] = a[3] + b[3];\n return out;\n}\n\n/**\n * Subtracts matrix b from matrix a\n *\n * @param {mat2} out the receiving matrix\n * @param {mat2} a the first operand\n * @param {mat2} b the second operand\n * @returns {mat2} out\n */\nexport function subtract(out, a, b) {\n out[0] = a[0] - b[0];\n out[1] = a[1] - b[1];\n out[2] = a[2] - b[2];\n out[3] = a[3] - b[3];\n return out;\n}\n\n/**\n * Returns whether or not the matrices have exactly the same elements in the same position (when compared with ===)\n *\n * @param {mat2} a The first matrix.\n * @param {mat2} b The second matrix.\n * @returns {Boolean} True if the matrices are equal, false otherwise.\n */\nexport function exactEquals(a, b) {\n return a[0] === b[0] && a[1] === b[1] && a[2] === b[2] && a[3] === b[3];\n}\n\n/**\n * Returns whether or not the matrices have approximately the same elements in the same position.\n *\n * @param {mat2} a The first matrix.\n * @param {mat2} b The second matrix.\n * @returns {Boolean} True if the matrices are equal, false otherwise.\n */\nexport function equals(a, b) {\n let a0 = a[0], a1 = a[1], a2 = a[2], a3 = a[3];\n let b0 = b[0], b1 = b[1], b2 = b[2], b3 = b[3];\n return (Math.abs(a0 - b0) <= glMatrix.EPSILON*Math.max(1.0, Math.abs(a0), Math.abs(b0)) &&\n Math.abs(a1 - b1) <= glMatrix.EPSILON*Math.max(1.0, Math.abs(a1), Math.abs(b1)) &&\n Math.abs(a2 - b2) <= glMatrix.EPSILON*Math.max(1.0, Math.abs(a2), Math.abs(b2)) &&\n Math.abs(a3 - b3) <= glMatrix.EPSILON*Math.max(1.0, Math.abs(a3), Math.abs(b3)));\n}\n\n/**\n * Multiply each element of the matrix by a scalar.\n *\n * @param {mat2} out the receiving matrix\n * @param {mat2} a the matrix to scale\n * @param {Number} b amount to scale the matrix's elements by\n * @returns {mat2} out\n */\nexport function multiplyScalar(out, a, b) {\n out[0] = a[0] * b;\n out[1] = a[1] * b;\n out[2] = a[2] * b;\n out[3] = a[3] * b;\n return out;\n}\n\n/**\n * Adds two mat2's after multiplying each element of the second operand by a scalar value.\n *\n * @param {mat2} out the receiving vector\n * @param {mat2} a the first operand\n * @param {mat2} b the second operand\n * @param {Number} scale the amount to scale b's elements by before adding\n * @returns {mat2} out\n */\nexport function multiplyScalarAndAdd(out, a, b, scale) {\n out[0] = a[0] + (b[0] * scale);\n out[1] = a[1] + (b[1] * scale);\n out[2] = a[2] + (b[2] * scale);\n out[3] = a[3] + (b[3] * scale);\n return out;\n}\n\n/**\n * Alias for {@link mat2.multiply}\n * @function\n */\nexport const mul = multiply;\n\n/**\n * Alias for {@link mat2.subtract}\n * @function\n */\nexport const sub = subtract;\n\n\n\n//////////////////\n// WEBPACK FOOTER\n// ./node_modules/gl-matrix/src/gl-matrix/mat2.js\n// module id = 20\n// module chunks = 0","/* Copyright (c) 2015, Brandon Jones, Colin MacKenzie IV.\n\nPermission is hereby granted, free of charge, to any person obtaining a copy\nof this software and associated documentation files (the \"Software\"), to deal\nin the Software without restriction, including without limitation the rights\nto use, copy, modify, merge, publish, distribute, sublicense, and/or sell\ncopies of the Software, and to permit persons to whom the Software is\nfurnished to do so, subject to the following conditions:\n\nThe above copyright notice and this permission notice shall be included in\nall copies or substantial portions of the Software.\n\nTHE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\nIMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\nFITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE\nAUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\nLIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,\nOUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN\nTHE SOFTWARE. */\n\nimport * as glMatrix from \"./common\";\n\n/**\n * 2x3 Matrix\n * @module mat2d\n *\n * @description\n * A mat2d contains six elements defined as:\n * 
\n * [a, c, tx,\n *  b, d, ty]\n *
\n * This is a short form for the 3x3 matrix:\n * 
\n * [a, c, tx,\n *  b, d, ty,\n *  0, 0, 1]\n *
\n * The last row is ignored so the array is shorter and operations are faster.\n */\n\n/**\n * Creates a new identity mat2d\n *\n * @returns {mat2d} a new 2x3 matrix\n */\nexport function create() {\n let out = new glMatrix.ARRAY_TYPE(6);\n out[0] = 1;\n out[1] = 0;\n out[2] = 0;\n out[3] = 1;\n out[4] = 0;\n out[5] = 0;\n return out;\n}\n\n/**\n * Creates a new mat2d initialized with values from an existing matrix\n *\n * @param {mat2d} a matrix to clone\n * @returns {mat2d} a new 2x3 matrix\n */\nexport function clone(a) {\n let out = new glMatrix.ARRAY_TYPE(6);\n out[0] = a[0];\n out[1] = a[1];\n out[2] = a[2];\n out[3] = a[3];\n out[4] = a[4];\n out[5] = a[5];\n return out;\n}\n\n/**\n * Copy the values from one mat2d to another\n *\n * @param {mat2d} out the receiving matrix\n * @param {mat2d} a the source matrix\n * @returns {mat2d} out\n */\nexport function copy(out, a) {\n out[0] = a[0];\n out[1] = a[1];\n out[2] = a[2];\n out[3] = a[3];\n out[4] = a[4];\n out[5] = a[5];\n return out;\n}\n\n/**\n * Set a mat2d to the identity matrix\n *\n * @param {mat2d} out the receiving matrix\n * @returns {mat2d} out\n */\nexport function identity(out) {\n out[0] = 1;\n out[1] = 0;\n out[2] = 0;\n out[3] = 1;\n out[4] = 0;\n out[5] = 0;\n return out;\n}\n\n/**\n * Create a new mat2d with the given values\n *\n * @param {Number} a Component A (index 0)\n * @param {Number} b Component B (index 1)\n * @param {Number} c Component C (index 2)\n * @param {Number} d Component D (index 3)\n * @param {Number} tx Component TX (index 4)\n * @param {Number} ty Component TY (index 5)\n * @returns {mat2d} A new mat2d\n */\nexport function fromValues(a, b, c, d, tx, ty) {\n let out = new glMatrix.ARRAY_TYPE(6);\n out[0] = a;\n out[1] = b;\n out[2] = c;\n out[3] = d;\n out[4] = tx;\n out[5] = ty;\n return out;\n}\n\n/**\n * Set the components of a mat2d to the given values\n *\n * @param {mat2d} out the receiving matrix\n * @param {Number} a Component A (index 0)\n * @param {Number} b Component B (index 1)\n * @param {Number} c Component C (index 2)\n * @param {Number} d Component D (index 3)\n * @param {Number} tx Component TX (index 4)\n * @param {Number} ty Component TY (index 5)\n * @returns {mat2d} out\n */\nexport function set(out, a, b, c, d, tx, ty) {\n out[0] = a;\n out[1] = b;\n out[2] = c;\n out[3] = d;\n out[4] = tx;\n out[5] = ty;\n return out;\n}\n\n/**\n * Inverts a mat2d\n *\n * @param {mat2d} out the receiving matrix\n * @param {mat2d} a the source matrix\n * @returns {mat2d} out\n */\nexport function invert(out, a) {\n let aa = a[0], ab = a[1], ac = a[2], ad = a[3];\n let atx = a[4], aty = a[5];\n\n let det = aa * ad - ab * ac;\n if(!det){\n return null;\n }\n det = 1.0 / det;\n\n out[0] = ad * det;\n out[1] = -ab * det;\n out[2] = -ac * det;\n out[3] = aa * det;\n out[4] = (ac * aty - ad * atx) * det;\n out[5] = (ab * atx - aa * aty) * det;\n return out;\n}\n\n/**\n * Calculates the determinant of a mat2d\n *\n * @param {mat2d} a the source matrix\n * @returns {Number} determinant of a\n */\nexport function determinant(a) {\n return a[0] * a[3] - a[1] * a[2];\n}\n\n/**\n * Multiplies two mat2d's\n *\n * @param {mat2d} out the receiving matrix\n * @param {mat2d} a the first operand\n * @param {mat2d} b the second operand\n * @returns {mat2d} out\n */\nexport function multiply(out, a, b) {\n let a0 = a[0], a1 = a[1], a2 = a[2], a3 = a[3], a4 = a[4], a5 = a[5];\n let b0 = b[0], b1 = b[1], b2 = b[2], b3 = b[3], b4 = b[4], b5 = b[5];\n out[0] = a0 * b0 + a2 * b1;\n out[1] = a1 * b0 + a3 * b1;\n out[2] = a0 * b2 + a2 * b3;\n out[3] = a1 * b2 + a3 * b3;\n out[4] = a0 * b4 + a2 * b5 + a4;\n out[5] = a1 * b4 + a3 * b5 + a5;\n return out;\n}\n\n/**\n * Rotates a mat2d by the given angle\n *\n * @param {mat2d} out the receiving matrix\n * @param {mat2d} a the matrix to rotate\n * @param {Number} rad the angle to rotate the matrix by\n * @returns {mat2d} out\n */\nexport function rotate(out, a, rad) {\n let a0 = a[0], a1 = a[1], a2 = a[2], a3 = a[3], a4 = a[4], a5 = a[5];\n let s = Math.sin(rad);\n let c = Math.cos(rad);\n out[0] = a0 * c + a2 * s;\n out[1] = a1 * c + a3 * s;\n out[2] = a0 * -s + a2 * c;\n out[3] = a1 * -s + a3 * c;\n out[4] = a4;\n out[5] = a5;\n return out;\n}\n\n/**\n * Scales the mat2d by the dimensions in the given vec2\n *\n * @param {mat2d} out the receiving matrix\n * @param {mat2d} a the matrix to translate\n * @param {vec2} v the vec2 to scale the matrix by\n * @returns {mat2d} out\n **/\nexport function scale(out, a, v) {\n let a0 = a[0], a1 = a[1], a2 = a[2], a3 = a[3], a4 = a[4], a5 = a[5];\n let v0 = v[0], v1 = v[1];\n out[0] = a0 * v0;\n out[1] = a1 * v0;\n out[2] = a2 * v1;\n out[3] = a3 * v1;\n out[4] = a4;\n out[5] = a5;\n return out;\n}\n\n/**\n * Translates the mat2d by the dimensions in the given vec2\n *\n * @param {mat2d} out the receiving matrix\n * @param {mat2d} a the matrix to translate\n * @param {vec2} v the vec2 to translate the matrix by\n * @returns {mat2d} out\n **/\nexport function translate(out, a, v) {\n let a0 = a[0], a1 = a[1], a2 = a[2], a3 = a[3], a4 = a[4], a5 = a[5];\n let v0 = v[0], v1 = v[1];\n out[0] = a0;\n out[1] = a1;\n out[2] = a2;\n out[3] = a3;\n out[4] = a0 * v0 + a2 * v1 + a4;\n out[5] = a1 * v0 + a3 * v1 + a5;\n return out;\n}\n\n/**\n * Creates a matrix from a given angle\n * This is equivalent to (but much faster than):\n *\n * mat2d.identity(dest);\n * mat2d.rotate(dest, dest, rad);\n *\n * @param {mat2d} out mat2d receiving operation result\n * @param {Number} rad the angle to rotate the matrix by\n * @returns {mat2d} out\n */\nexport function fromRotation(out, rad) {\n let s = Math.sin(rad), c = Math.cos(rad);\n out[0] = c;\n out[1] = s;\n out[2] = -s;\n out[3] = c;\n out[4] = 0;\n out[5] = 0;\n return out;\n}\n\n/**\n * Creates a matrix from a vector scaling\n * This is equivalent to (but much faster than):\n *\n * mat2d.identity(dest);\n * mat2d.scale(dest, dest, vec);\n *\n * @param {mat2d} out mat2d receiving operation result\n * @param {vec2} v Scaling vector\n * @returns {mat2d} out\n */\nexport function fromScaling(out, v) {\n out[0] = v[0];\n out[1] = 0;\n out[2] = 0;\n out[3] = v[1];\n out[4] = 0;\n out[5] = 0;\n return out;\n}\n\n/**\n * Creates a matrix from a vector translation\n * This is equivalent to (but much faster than):\n *\n * mat2d.identity(dest);\n * mat2d.translate(dest, dest, vec);\n *\n * @param {mat2d} out mat2d receiving operation result\n * @param {vec2} v Translation vector\n * @returns {mat2d} out\n */\nexport function fromTranslation(out, v) {\n out[0] = 1;\n out[1] = 0;\n out[2] = 0;\n out[3] = 1;\n out[4] = v[0];\n out[5] = v[1];\n return out;\n}\n\n/**\n * Returns a string representation of a mat2d\n *\n * @param {mat2d} a matrix to represent as a string\n * @returns {String} string representation of the matrix\n */\nexport function str(a) {\n return 'mat2d(' + a[0] + ', ' + a[1] + ', ' + a[2] + ', ' +\n a[3] + ', ' + a[4] + ', ' + a[5] + ')';\n}\n\n/**\n * Returns Frobenius norm of a mat2d\n *\n * @param {mat2d} a the matrix to calculate Frobenius norm of\n * @returns {Number} Frobenius norm\n */\nexport function frob(a) {\n return(Math.sqrt(Math.pow(a[0], 2) + Math.pow(a[1], 2) + Math.pow(a[2], 2) + Math.pow(a[3], 2) + Math.pow(a[4], 2) + Math.pow(a[5], 2) + 1))\n}\n\n/**\n * Adds two mat2d's\n *\n * @param {mat2d} out the receiving matrix\n * @param {mat2d} a the first operand\n * @param {mat2d} b the second operand\n * @returns {mat2d} out\n */\nexport function add(out, a, b) {\n out[0] = a[0] + b[0];\n out[1] = a[1] + b[1];\n out[2] = a[2] + b[2];\n out[3] = a[3] + b[3];\n out[4] = a[4] + b[4];\n out[5] = a[5] + b[5];\n return out;\n}\n\n/**\n * Subtracts matrix b from matrix a\n *\n * @param {mat2d} out the receiving matrix\n * @param {mat2d} a the first operand\n * @param {mat2d} b the second operand\n * @returns {mat2d} out\n */\nexport function subtract(out, a, b) {\n out[0] = a[0] - b[0];\n out[1] = a[1] - b[1];\n out[2] = a[2] - b[2];\n out[3] = a[3] - b[3];\n out[4] = a[4] - b[4];\n out[5] = a[5] - b[5];\n return out;\n}\n\n/**\n * Multiply each element of the matrix by a scalar.\n *\n * @param {mat2d} out the receiving matrix\n * @param {mat2d} a the matrix to scale\n * @param {Number} b amount to scale the matrix's elements by\n * @returns {mat2d} out\n */\nexport function multiplyScalar(out, a, b) {\n out[0] = a[0] * b;\n out[1] = a[1] * b;\n out[2] = a[2] * b;\n out[3] = a[3] * b;\n out[4] = a[4] * b;\n out[5] = a[5] * b;\n return out;\n}\n\n/**\n * Adds two mat2d's after multiplying each element of the second operand by a scalar value.\n *\n * @param {mat2d} out the receiving vector\n * @param {mat2d} a the first operand\n * @param {mat2d} b the second operand\n * @param {Number} scale the amount to scale b's elements by before adding\n * @returns {mat2d} out\n */\nexport function multiplyScalarAndAdd(out, a, b, scale) {\n out[0] = a[0] + (b[0] * scale);\n out[1] = a[1] + (b[1] * scale);\n out[2] = a[2] + (b[2] * scale);\n out[3] = a[3] + (b[3] * scale);\n out[4] = a[4] + (b[4] * scale);\n out[5] = a[5] + (b[5] * scale);\n return out;\n}\n\n/**\n * Returns whether or not the matrices have exactly the same elements in the same position (when compared with ===)\n *\n * @param {mat2d} a The first matrix.\n * @param {mat2d} b The second matrix.\n * @returns {Boolean} True if the matrices are equal, false otherwise.\n */\nexport function exactEquals(a, b) {\n return a[0] === b[0] && a[1] === b[1] && a[2] === b[2] && a[3] === b[3] && a[4] === b[4] && a[5] === b[5];\n}\n\n/**\n * Returns whether or not the matrices have approximately the same elements in the same position.\n *\n * @param {mat2d} a The first matrix.\n * @param {mat2d} b The second matrix.\n * @returns {Boolean} True if the matrices are equal, false otherwise.\n */\nexport function equals(a, b) {\n let a0 = a[0], a1 = a[1], a2 = a[2], a3 = a[3], a4 = a[4], a5 = a[5];\n let b0 = b[0], b1 = b[1], b2 = b[2], b3 = b[3], b4 = b[4], b5 = b[5];\n return (Math.abs(a0 - b0) <= glMatrix.EPSILON*Math.max(1.0, Math.abs(a0), Math.abs(b0)) &&\n Math.abs(a1 - b1) <= glMatrix.EPSILON*Math.max(1.0, Math.abs(a1), Math.abs(b1)) &&\n Math.abs(a2 - b2) <= glMatrix.EPSILON*Math.max(1.0, Math.abs(a2), Math.abs(b2)) &&\n Math.abs(a3 - b3) <= glMatrix.EPSILON*Math.max(1.0, Math.abs(a3), Math.abs(b3)) &&\n Math.abs(a4 - b4) <= glMatrix.EPSILON*Math.max(1.0, Math.abs(a4), Math.abs(b4)) &&\n Math.abs(a5 - b5) <= glMatrix.EPSILON*Math.max(1.0, Math.abs(a5), Math.abs(b5)));\n}\n\n/**\n * Alias for {@link mat2d.multiply}\n * @function\n */\nexport const mul = multiply;\n\n/**\n * Alias for {@link mat2d.subtract}\n * @function\n */\nexport const sub = subtract;\n\n\n\n//////////////////\n// WEBPACK FOOTER\n// ./node_modules/gl-matrix/src/gl-matrix/mat2d.js\n// module id = 21\n// module chunks = 0","/* Copyright (c) 2015, Brandon Jones, Colin MacKenzie IV.\n\nPermission is hereby granted, free of charge, to any person obtaining a copy\nof this software and associated documentation files (the \"Software\"), to deal\nin the Software without restriction, including without limitation the rights\nto use, copy, modify, merge, publish, distribute, sublicense, and/or sell\ncopies of the Software, and to permit persons to whom the Software is\nfurnished to do so, subject to the following conditions:\n\nThe above copyright notice and this permission notice shall be included in\nall copies or substantial portions of the Software.\n\nTHE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\nIMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\nFITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE\nAUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\nLIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,\nOUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN\nTHE SOFTWARE. */\n\nimport * as glMatrix from \"./common\";\n\n/**\n * 4x4 Matrix\n * @module mat4\n */\n\n/**\n * Creates a new identity mat4\n *\n * @returns {mat4} a new 4x4 matrix\n */\nexport function create() {\n let out = new glMatrix.ARRAY_TYPE(16);\n out[0] = 1;\n out[1] = 0;\n out[2] = 0;\n out[3] = 0;\n out[4] = 0;\n out[5] = 1;\n out[6] = 0;\n out[7] = 0;\n out[8] = 0;\n out[9] = 0;\n out[10] = 1;\n out[11] = 0;\n out[12] = 0;\n out[13] = 0;\n out[14] = 0;\n out[15] = 1;\n return out;\n}\n\n/**\n * Creates a new mat4 initialized with values from an existing matrix\n *\n * @param {mat4} a matrix to clone\n * @returns {mat4} a new 4x4 matrix\n */\nexport function clone(a) {\n let out = new glMatrix.ARRAY_TYPE(16);\n out[0] = a[0];\n out[1] = a[1];\n out[2] = a[2];\n out[3] = a[3];\n out[4] = a[4];\n out[5] = a[5];\n out[6] = a[6];\n out[7] = a[7];\n out[8] = a[8];\n out[9] = a[9];\n out[10] = a[10];\n out[11] = a[11];\n out[12] = a[12];\n out[13] = a[13];\n out[14] = a[14];\n out[15] = a[15];\n return out;\n}\n\n/**\n * Copy the values from one mat4 to another\n *\n * @param {mat4} out the receiving matrix\n * @param {mat4} a the source matrix\n * @returns {mat4} out\n */\nexport function copy(out, a) {\n out[0] = a[0];\n out[1] = a[1];\n out[2] = a[2];\n out[3] = a[3];\n out[4] = a[4];\n out[5] = a[5];\n out[6] = a[6];\n out[7] = a[7];\n out[8] = a[8];\n out[9] = a[9];\n out[10] = a[10];\n out[11] = a[11];\n out[12] = a[12];\n out[13] = a[13];\n out[14] = a[14];\n out[15] = a[15];\n return out;\n}\n\n/**\n * Create a new mat4 with the given values\n *\n * @param {Number} m00 Component in column 0, row 0 position (index 0)\n * @param {Number} m01 Component in column 0, row 1 position (index 1)\n * @param {Number} m02 Component in column 0, row 2 position (index 2)\n * @param {Number} m03 Component in column 0, row 3 position (index 3)\n * @param {Number} m10 Component in column 1, row 0 position (index 4)\n * @param {Number} m11 Component in column 1, row 1 position (index 5)\n * @param {Number} m12 Component in column 1, row 2 position (index 6)\n * @param {Number} m13 Component in column 1, row 3 position (index 7)\n * @param {Number} m20 Component in column 2, row 0 position (index 8)\n * @param {Number} m21 Component in column 2, row 1 position (index 9)\n * @param {Number} m22 Component in column 2, row 2 position (index 10)\n * @param {Number} m23 Component in column 2, row 3 position (index 11)\n * @param {Number} m30 Component in column 3, row 0 position (index 12)\n * @param {Number} m31 Component in column 3, row 1 position (index 13)\n * @param {Number} m32 Component in column 3, row 2 position (index 14)\n * @param {Number} m33 Component in column 3, row 3 position (index 15)\n * @returns {mat4} A new mat4\n */\nexport function fromValues(m00, m01, m02, m03, m10, m11, m12, m13, m20, m21, m22, m23, m30, m31, m32, m33) {\n let out = new glMatrix.ARRAY_TYPE(16);\n out[0] = m00;\n out[1] = m01;\n out[2] = m02;\n out[3] = m03;\n out[4] = m10;\n out[5] = m11;\n out[6] = m12;\n out[7] = m13;\n out[8] = m20;\n out[9] = m21;\n out[10] = m22;\n out[11] = m23;\n out[12] = m30;\n out[13] = m31;\n out[14] = m32;\n out[15] = m33;\n return out;\n}\n\n/**\n * Set the components of a mat4 to the given values\n *\n * @param {mat4} out the receiving matrix\n * @param {Number} m00 Component in column 0, row 0 position (index 0)\n * @param {Number} m01 Component in column 0, row 1 position (index 1)\n * @param {Number} m02 Component in column 0, row 2 position (index 2)\n * @param {Number} m03 Component in column 0, row 3 position (index 3)\n * @param {Number} m10 Component in column 1, row 0 position (index 4)\n * @param {Number} m11 Component in column 1, row 1 position (index 5)\n * @param {Number} m12 Component in column 1, row 2 position (index 6)\n * @param {Number} m13 Component in column 1, row 3 position (index 7)\n * @param {Number} m20 Component in column 2, row 0 position (index 8)\n * @param {Number} m21 Component in column 2, row 1 position (index 9)\n * @param {Number} m22 Component in column 2, row 2 position (index 10)\n * @param {Number} m23 Component in column 2, row 3 position (index 11)\n * @param {Number} m30 Component in column 3, row 0 position (index 12)\n * @param {Number} m31 Component in column 3, row 1 position (index 13)\n * @param {Number} m32 Component in column 3, row 2 position (index 14)\n * @param {Number} m33 Component in column 3, row 3 position (index 15)\n * @returns {mat4} out\n */\nexport function set(out, m00, m01, m02, m03, m10, m11, m12, m13, m20, m21, m22, m23, m30, m31, m32, m33) {\n out[0] = m00;\n out[1] = m01;\n out[2] = m02;\n out[3] = m03;\n out[4] = m10;\n out[5] = m11;\n out[6] = m12;\n out[7] = m13;\n out[8] = m20;\n out[9] = m21;\n out[10] = m22;\n out[11] = m23;\n out[12] = m30;\n out[13] = m31;\n out[14] = m32;\n out[15] = m33;\n return out;\n}\n\n\n/**\n * Set a mat4 to the identity matrix\n *\n * @param {mat4} out the receiving matrix\n * @returns {mat4} out\n */\nexport function identity(out) {\n out[0] = 1;\n out[1] = 0;\n out[2] = 0;\n out[3] = 0;\n out[4] = 0;\n out[5] = 1;\n out[6] = 0;\n out[7] = 0;\n out[8] = 0;\n out[9] = 0;\n out[10] = 1;\n out[11] = 0;\n out[12] = 0;\n out[13] = 0;\n out[14] = 0;\n out[15] = 1;\n return out;\n}\n\n/**\n * Transpose the values of a mat4\n *\n * @param {mat4} out the receiving matrix\n * @param {mat4} a the source matrix\n * @returns {mat4} out\n */\nexport function transpose(out, a) {\n // If we are transposing ourselves we can skip a few steps but have to cache some values\n if (out === a) {\n let a01 = a[1], a02 = a[2], a03 = a[3];\n let a12 = a[6], a13 = a[7];\n let a23 = a[11];\n\n out[1] = a[4];\n out[2] = a[8];\n out[3] = a[12];\n out[4] = a01;\n out[6] = a[9];\n out[7] = a[13];\n out[8] = a02;\n out[9] = a12;\n out[11] = a[14];\n out[12] = a03;\n out[13] = a13;\n out[14] = a23;\n } else {\n out[0] = a[0];\n out[1] = a[4];\n out[2] = a[8];\n out[3] = a[12];\n out[4] = a[1];\n out[5] = a[5];\n out[6] = a[9];\n out[7] = a[13];\n out[8] = a[2];\n out[9] = a[6];\n out[10] = a[10];\n out[11] = a[14];\n out[12] = a[3];\n out[13] = a[7];\n out[14] = a[11];\n out[15] = a[15];\n }\n\n return out;\n}\n\n/**\n * Inverts a mat4\n *\n * @param {mat4} out the receiving matrix\n * @param {mat4} a the source matrix\n * @returns {mat4} out\n */\nexport function invert(out, a) {\n let a00 = a[0], a01 = a[1], a02 = a[2], a03 = a[3];\n let a10 = a[4], a11 = a[5], a12 = a[6], a13 = a[7];\n let a20 = a[8], a21 = a[9], a22 = a[10], a23 = a[11];\n let a30 = a[12], a31 = a[13], a32 = a[14], a33 = a[15];\n\n let b00 = a00 * a11 - a01 * a10;\n let b01 = a00 * a12 - a02 * a10;\n let b02 = a00 * a13 - a03 * a10;\n let b03 = a01 * a12 - a02 * a11;\n let b04 = a01 * a13 - a03 * a11;\n let b05 = a02 * a13 - a03 * a12;\n let b06 = a20 * a31 - a21 * a30;\n let b07 = a20 * a32 - a22 * a30;\n let b08 = a20 * a33 - a23 * a30;\n let b09 = a21 * a32 - a22 * a31;\n let b10 = a21 * a33 - a23 * a31;\n let b11 = a22 * a33 - a23 * a32;\n\n // Calculate the determinant\n let det = b00 * b11 - b01 * b10 + b02 * b09 + b03 * b08 - b04 * b07 + b05 * b06;\n\n if (!det) {\n return null;\n }\n det = 1.0 / det;\n\n out[0] = (a11 * b11 - a12 * b10 + a13 * b09) * det;\n out[1] = (a02 * b10 - a01 * b11 - a03 * b09) * det;\n out[2] = (a31 * b05 - a32 * b04 + a33 * b03) * det;\n out[3] = (a22 * b04 - a21 * b05 - a23 * b03) * det;\n out[4] = (a12 * b08 - a10 * b11 - a13 * b07) * det;\n out[5] = (a00 * b11 - a02 * b08 + a03 * b07) * det;\n out[6] = (a32 * b02 - a30 * b05 - a33 * b01) * det;\n out[7] = (a20 * b05 - a22 * b02 + a23 * b01) * det;\n out[8] = (a10 * b10 - a11 * b08 + a13 * b06) * det;\n out[9] = (a01 * b08 - a00 * b10 - a03 * b06) * det;\n out[10] = (a30 * b04 - a31 * b02 + a33 * b00) * det;\n out[11] = (a21 * b02 - a20 * b04 - a23 * b00) * det;\n out[12] = (a11 * b07 - a10 * b09 - a12 * b06) * det;\n out[13] = (a00 * b09 - a01 * b07 + a02 * b06) * det;\n out[14] = (a31 * b01 - a30 * b03 - a32 * b00) * det;\n out[15] = (a20 * b03 - a21 * b01 + a22 * b00) * det;\n\n return out;\n}\n\n/**\n * Calculates the adjugate of a mat4\n *\n * @param {mat4} out the receiving matrix\n * @param {mat4} a the source matrix\n * @returns {mat4} out\n */\nexport function adjoint(out, a) {\n let a00 = a[0], a01 = a[1], a02 = a[2], a03 = a[3];\n let a10 = a[4], a11 = a[5], a12 = a[6], a13 = a[7];\n let a20 = a[8], a21 = a[9], a22 = a[10], a23 = a[11];\n let a30 = a[12], a31 = a[13], a32 = a[14], a33 = a[15];\n\n out[0] = (a11 * (a22 * a33 - a23 * a32) - a21 * (a12 * a33 - a13 * a32) + a31 * (a12 * a23 - a13 * a22));\n out[1] = -(a01 * (a22 * a33 - a23 * a32) - a21 * (a02 * a33 - a03 * a32) + a31 * (a02 * a23 - a03 * a22));\n out[2] = (a01 * (a12 * a33 - a13 * a32) - a11 * (a02 * a33 - a03 * a32) + a31 * (a02 * a13 - a03 * a12));\n out[3] = -(a01 * (a12 * a23 - a13 * a22) - a11 * (a02 * a23 - a03 * a22) + a21 * (a02 * a13 - a03 * a12));\n out[4] = -(a10 * (a22 * a33 - a23 * a32) - a20 * (a12 * a33 - a13 * a32) + a30 * (a12 * a23 - a13 * a22));\n out[5] = (a00 * (a22 * a33 - a23 * a32) - a20 * (a02 * a33 - a03 * a32) + a30 * (a02 * a23 - a03 * a22));\n out[6] = -(a00 * (a12 * a33 - a13 * a32) - a10 * (a02 * a33 - a03 * a32) + a30 * (a02 * a13 - a03 * a12));\n out[7] = (a00 * (a12 * a23 - a13 * a22) - a10 * (a02 * a23 - a03 * a22) + a20 * (a02 * a13 - a03 * a12));\n out[8] = (a10 * (a21 * a33 - a23 * a31) - a20 * (a11 * a33 - a13 * a31) + a30 * (a11 * a23 - a13 * a21));\n out[9] = -(a00 * (a21 * a33 - a23 * a31) - a20 * (a01 * a33 - a03 * a31) + a30 * (a01 * a23 - a03 * a21));\n out[10] = (a00 * (a11 * a33 - a13 * a31) - a10 * (a01 * a33 - a03 * a31) + a30 * (a01 * a13 - a03 * a11));\n out[11] = -(a00 * (a11 * a23 - a13 * a21) - a10 * (a01 * a23 - a03 * a21) + a20 * (a01 * a13 - a03 * a11));\n out[12] = -(a10 * (a21 * a32 - a22 * a31) - a20 * (a11 * a32 - a12 * a31) + a30 * (a11 * a22 - a12 * a21));\n out[13] = (a00 * (a21 * a32 - a22 * a31) - a20 * (a01 * a32 - a02 * a31) + a30 * (a01 * a22 - a02 * a21));\n out[14] = -(a00 * (a11 * a32 - a12 * a31) - a10 * (a01 * a32 - a02 * a31) + a30 * (a01 * a12 - a02 * a11));\n out[15] = (a00 * (a11 * a22 - a12 * a21) - a10 * (a01 * a22 - a02 * a21) + a20 * (a01 * a12 - a02 * a11));\n return out;\n}\n\n/**\n * Calculates the determinant of a mat4\n *\n * @param {mat4} a the source matrix\n * @returns {Number} determinant of a\n */\nexport function determinant(a) {\n let a00 = a[0], a01 = a[1], a02 = a[2], a03 = a[3];\n let a10 = a[4], a11 = a[5], a12 = a[6], a13 = a[7];\n let a20 = a[8], a21 = a[9], a22 = a[10], a23 = a[11];\n let a30 = a[12], a31 = a[13], a32 = a[14], a33 = a[15];\n\n let b00 = a00 * a11 - a01 * a10;\n let b01 = a00 * a12 - a02 * a10;\n let b02 = a00 * a13 - a03 * a10;\n let b03 = a01 * a12 - a02 * a11;\n let b04 = a01 * a13 - a03 * a11;\n let b05 = a02 * a13 - a03 * a12;\n let b06 = a20 * a31 - a21 * a30;\n let b07 = a20 * a32 - a22 * a30;\n let b08 = a20 * a33 - a23 * a30;\n let b09 = a21 * a32 - a22 * a31;\n let b10 = a21 * a33 - a23 * a31;\n let b11 = a22 * a33 - a23 * a32;\n\n // Calculate the determinant\n return b00 * b11 - b01 * b10 + b02 * b09 + b03 * b08 - b04 * b07 + b05 * b06;\n}\n\n/**\n * Multiplies two mat4s\n *\n * @param {mat4} out the receiving matrix\n * @param {mat4} a the first operand\n * @param {mat4} b the second operand\n * @returns {mat4} out\n */\nexport function multiply(out, a, b) {\n let a00 = a[0], a01 = a[1], a02 = a[2], a03 = a[3];\n let a10 = a[4], a11 = a[5], a12 = a[6], a13 = a[7];\n let a20 = a[8], a21 = a[9], a22 = a[10], a23 = a[11];\n let a30 = a[12], a31 = a[13], a32 = a[14], a33 = a[15];\n\n // Cache only the current line of the second matrix\n let b0 = b[0], b1 = b[1], b2 = b[2], b3 = b[3];\n out[0] = b0*a00 + b1*a10 + b2*a20 + b3*a30;\n out[1] = b0*a01 + b1*a11 + b2*a21 + b3*a31;\n out[2] = b0*a02 + b1*a12 + b2*a22 + b3*a32;\n out[3] = b0*a03 + b1*a13 + b2*a23 + b3*a33;\n\n b0 = b[4]; b1 = b[5]; b2 = b[6]; b3 = b[7];\n out[4] = b0*a00 + b1*a10 + b2*a20 + b3*a30;\n out[5] = b0*a01 + b1*a11 + b2*a21 + b3*a31;\n out[6] = b0*a02 + b1*a12 + b2*a22 + b3*a32;\n out[7] = b0*a03 + b1*a13 + b2*a23 + b3*a33;\n\n b0 = b[8]; b1 = b[9]; b2 = b[10]; b3 = b[11];\n out[8] = b0*a00 + b1*a10 + b2*a20 + b3*a30;\n out[9] = b0*a01 + b1*a11 + b2*a21 + b3*a31;\n out[10] = b0*a02 + b1*a12 + b2*a22 + b3*a32;\n out[11] = b0*a03 + b1*a13 + b2*a23 + b3*a33;\n\n b0 = b[12]; b1 = b[13]; b2 = b[14]; b3 = b[15];\n out[12] = b0*a00 + b1*a10 + b2*a20 + b3*a30;\n out[13] = b0*a01 + b1*a11 + b2*a21 + b3*a31;\n out[14] = b0*a02 + b1*a12 + b2*a22 + b3*a32;\n out[15] = b0*a03 + b1*a13 + b2*a23 + b3*a33;\n return out;\n}\n\n/**\n * Translate a mat4 by the given vector\n *\n * @param {mat4} out the receiving matrix\n * @param {mat4} a the matrix to translate\n * @param {vec3} v vector to translate by\n * @returns {mat4} out\n */\nexport function translate(out, a, v) {\n let x = v[0], y = v[1], z = v[2];\n let a00, a01, a02, a03;\n let a10, a11, a12, a13;\n let a20, a21, a22, a23;\n\n if (a === out) {\n out[12] = a[0] * x + a[4] * y + a[8] * z + a[12];\n out[13] = a[1] * x + a[5] * y + a[9] * z + a[13];\n out[14] = a[2] * x + a[6] * y + a[10] * z + a[14];\n out[15] = a[3] * x + a[7] * y + a[11] * z + a[15];\n } else {\n a00 = a[0]; a01 = a[1]; a02 = a[2]; a03 = a[3];\n a10 = a[4]; a11 = a[5]; a12 = a[6]; a13 = a[7];\n a20 = a[8]; a21 = a[9]; a22 = a[10]; a23 = a[11];\n\n out[0] = a00; out[1] = a01; out[2] = a02; out[3] = a03;\n out[4] = a10; out[5] = a11; out[6] = a12; out[7] = a13;\n out[8] = a20; out[9] = a21; out[10] = a22; out[11] = a23;\n\n out[12] = a00 * x + a10 * y + a20 * z + a[12];\n out[13] = a01 * x + a11 * y + a21 * z + a[13];\n out[14] = a02 * x + a12 * y + a22 * z + a[14];\n out[15] = a03 * x + a13 * y + a23 * z + a[15];\n }\n\n return out;\n}\n\n/**\n * Scales the mat4 by the dimensions in the given vec3 not using vectorization\n *\n * @param {mat4} out the receiving matrix\n * @param {mat4} a the matrix to scale\n * @param {vec3} v the vec3 to scale the matrix by\n * @returns {mat4} out\n **/\nexport function scale(out, a, v) {\n let x = v[0], y = v[1], z = v[2];\n\n out[0] = a[0] * x;\n out[1] = a[1] * x;\n out[2] = a[2] * x;\n out[3] = a[3] * x;\n out[4] = a[4] * y;\n out[5] = a[5] * y;\n out[6] = a[6] * y;\n out[7] = a[7] * y;\n out[8] = a[8] * z;\n out[9] = a[9] * z;\n out[10] = a[10] * z;\n out[11] = a[11] * z;\n out[12] = a[12];\n out[13] = a[13];\n out[14] = a[14];\n out[15] = a[15];\n return out;\n}\n\n/**\n * Rotates a mat4 by the given angle around the given axis\n *\n * @param {mat4} out the receiving matrix\n * @param {mat4} a the matrix to rotate\n * @param {Number} rad the angle to rotate the matrix by\n * @param {vec3} axis the axis to rotate around\n * @returns {mat4} out\n */\nexport function rotate(out, a, rad, axis) {\n let x = axis[0], y = axis[1], z = axis[2];\n let len = Math.sqrt(x * x + y * y + z * z);\n let s, c, t;\n let a00, a01, a02, a03;\n let a10, a11, a12, a13;\n let a20, a21, a22, a23;\n let b00, b01, b02;\n let b10, b11, b12;\n let b20, b21, b22;\n\n if (Math.abs(len) < glMatrix.EPSILON) { return null; }\n\n len = 1 / len;\n x *= len;\n y *= len;\n z *= len;\n\n s = Math.sin(rad);\n c = Math.cos(rad);\n t = 1 - c;\n\n a00 = a[0]; a01 = a[1]; a02 = a[2]; a03 = a[3];\n a10 = a[4]; a11 = a[5]; a12 = a[6]; a13 = a[7];\n a20 = a[8]; a21 = a[9]; a22 = a[10]; a23 = a[11];\n\n // Construct the elements of the rotation matrix\n b00 = x * x * t + c; b01 = y * x * t + z * s; b02 = z * x * t - y * s;\n b10 = x * y * t - z * s; b11 = y * y * t + c; b12 = z * y * t + x * s;\n b20 = x * z * t + y * s; b21 = y * z * t - x * s; b22 = z * z * t + c;\n\n // Perform rotation-specific matrix multiplication\n out[0] = a00 * b00 + a10 * b01 + a20 * b02;\n out[1] = a01 * b00 + a11 * b01 + a21 * b02;\n out[2] = a02 * b00 + a12 * b01 + a22 * b02;\n out[3] = a03 * b00 + a13 * b01 + a23 * b02;\n out[4] = a00 * b10 + a10 * b11 + a20 * b12;\n out[5] = a01 * b10 + a11 * b11 + a21 * b12;\n out[6] = a02 * b10 + a12 * b11 + a22 * b12;\n out[7] = a03 * b10 + a13 * b11 + a23 * b12;\n out[8] = a00 * b20 + a10 * b21 + a20 * b22;\n out[9] = a01 * b20 + a11 * b21 + a21 * b22;\n out[10] = a02 * b20 + a12 * b21 + a22 * b22;\n out[11] = a03 * b20 + a13 * b21 + a23 * b22;\n\n if (a !== out) { // If the source and destination differ, copy the unchanged last row\n out[12] = a[12];\n out[13] = a[13];\n out[14] = a[14];\n out[15] = a[15];\n }\n return out;\n}\n\n/**\n * Rotates a matrix by the given angle around the X axis\n *\n * @param {mat4} out the receiving matrix\n * @param {mat4} a the matrix to rotate\n * @param {Number} rad the angle to rotate the matrix by\n * @returns {mat4} out\n */\nexport function rotateX(out, a, rad) {\n let s = Math.sin(rad);\n let c = Math.cos(rad);\n let a10 = a[4];\n let a11 = a[5];\n let a12 = a[6];\n let a13 = a[7];\n let a20 = a[8];\n let a21 = a[9];\n let a22 = a[10];\n let a23 = a[11];\n\n if (a !== out) { // If the source and destination differ, copy the unchanged rows\n out[0] = a[0];\n out[1] = a[1];\n out[2] = a[2];\n out[3] = a[3];\n out[12] = a[12];\n out[13] = a[13];\n out[14] = a[14];\n out[15] = a[15];\n }\n\n // Perform axis-specific matrix multiplication\n out[4] = a10 * c + a20 * s;\n out[5] = a11 * c + a21 * s;\n out[6] = a12 * c + a22 * s;\n out[7] = a13 * c + a23 * s;\n out[8] = a20 * c - a10 * s;\n out[9] = a21 * c - a11 * s;\n out[10] = a22 * c - a12 * s;\n out[11] = a23 * c - a13 * s;\n return out;\n}\n\n/**\n * Rotates a matrix by the given angle around the Y axis\n *\n * @param {mat4} out the receiving matrix\n * @param {mat4} a the matrix to rotate\n * @param {Number} rad the angle to rotate the matrix by\n * @returns {mat4} out\n */\nexport function rotateY(out, a, rad) {\n let s = Math.sin(rad);\n let c = Math.cos(rad);\n let a00 = a[0];\n let a01 = a[1];\n let a02 = a[2];\n let a03 = a[3];\n let a20 = a[8];\n let a21 = a[9];\n let a22 = a[10];\n let a23 = a[11];\n\n if (a !== out) { // If the source and destination differ, copy the unchanged rows\n out[4] = a[4];\n out[5] = a[5];\n out[6] = a[6];\n out[7] = a[7];\n out[12] = a[12];\n out[13] = a[13];\n out[14] = a[14];\n out[15] = a[15];\n }\n\n // Perform axis-specific matrix multiplication\n out[0] = a00 * c - a20 * s;\n out[1] = a01 * c - a21 * s;\n out[2] = a02 * c - a22 * s;\n out[3] = a03 * c - a23 * s;\n out[8] = a00 * s + a20 * c;\n out[9] = a01 * s + a21 * c;\n out[10] = a02 * s + a22 * c;\n out[11] = a03 * s + a23 * c;\n return out;\n}\n\n/**\n * Rotates a matrix by the given angle around the Z axis\n *\n * @param {mat4} out the receiving matrix\n * @param {mat4} a the matrix to rotate\n * @param {Number} rad the angle to rotate the matrix by\n * @returns {mat4} out\n */\nexport function rotateZ(out, a, rad) {\n let s = Math.sin(rad);\n let c = Math.cos(rad);\n let a00 = a[0];\n let a01 = a[1];\n let a02 = a[2];\n let a03 = a[3];\n let a10 = a[4];\n let a11 = a[5];\n let a12 = a[6];\n let a13 = a[7];\n\n if (a !== out) { // If the source and destination differ, copy the unchanged last row\n out[8] = a[8];\n out[9] = a[9];\n out[10] = a[10];\n out[11] = a[11];\n out[12] = a[12];\n out[13] = a[13];\n out[14] = a[14];\n out[15] = a[15];\n }\n\n // Perform axis-specific matrix multiplication\n out[0] = a00 * c + a10 * s;\n out[1] = a01 * c + a11 * s;\n out[2] = a02 * c + a12 * s;\n out[3] = a03 * c + a13 * s;\n out[4] = a10 * c - a00 * s;\n out[5] = a11 * c - a01 * s;\n out[6] = a12 * c - a02 * s;\n out[7] = a13 * c - a03 * s;\n return out;\n}\n\n/**\n * Creates a matrix from a vector translation\n * This is equivalent to (but much faster than):\n *\n * mat4.identity(dest);\n * mat4.translate(dest, dest, vec);\n *\n * @param {mat4} out mat4 receiving operation result\n * @param {vec3} v Translation vector\n * @returns {mat4} out\n */\nexport function fromTranslation(out, v) {\n out[0] = 1;\n out[1] = 0;\n out[2] = 0;\n out[3] = 0;\n out[4] = 0;\n out[5] = 1;\n out[6] = 0;\n out[7] = 0;\n out[8] = 0;\n out[9] = 0;\n out[10] = 1;\n out[11] = 0;\n out[12] = v[0];\n out[13] = v[1];\n out[14] = v[2];\n out[15] = 1;\n return out;\n}\n\n/**\n * Creates a matrix from a vector scaling\n * This is equivalent to (but much faster than):\n *\n * mat4.identity(dest);\n * mat4.scale(dest, dest, vec);\n *\n * @param {mat4} out mat4 receiving operation result\n * @param {vec3} v Scaling vector\n * @returns {mat4} out\n */\nexport function fromScaling(out, v) {\n out[0] = v[0];\n out[1] = 0;\n out[2] = 0;\n out[3] = 0;\n out[4] = 0;\n out[5] = v[1];\n out[6] = 0;\n out[7] = 0;\n out[8] = 0;\n out[9] = 0;\n out[10] = v[2];\n out[11] = 0;\n out[12] = 0;\n out[13] = 0;\n out[14] = 0;\n out[15] = 1;\n return out;\n}\n\n/**\n * Creates a matrix from a given angle around a given axis\n * This is equivalent to (but much faster than):\n *\n * mat4.identity(dest);\n * mat4.rotate(dest, dest, rad, axis);\n *\n * @param {mat4} out mat4 receiving operation result\n * @param {Number} rad the angle to rotate the matrix by\n * @param {vec3} axis the axis to rotate around\n * @returns {mat4} out\n */\nexport function fromRotation(out, rad, axis) {\n let x = axis[0], y = axis[1], z = axis[2];\n let len = Math.sqrt(x * x + y * y + z * z);\n let s, c, t;\n\n if (Math.abs(len) < glMatrix.EPSILON) { return null; }\n\n len = 1 / len;\n x *= len;\n y *= len;\n z *= len;\n\n s = Math.sin(rad);\n c = Math.cos(rad);\n t = 1 - c;\n\n // Perform rotation-specific matrix multiplication\n out[0] = x * x * t + c;\n out[1] = y * x * t + z * s;\n out[2] = z * x * t - y * s;\n out[3] = 0;\n out[4] = x * y * t - z * s;\n out[5] = y * y * t + c;\n out[6] = z * y * t + x * s;\n out[7] = 0;\n out[8] = x * z * t + y * s;\n out[9] = y * z * t - x * s;\n out[10] = z * z * t + c;\n out[11] = 0;\n out[12] = 0;\n out[13] = 0;\n out[14] = 0;\n out[15] = 1;\n return out;\n}\n\n/**\n * Creates a matrix from the given angle around the X axis\n * This is equivalent to (but much faster than):\n *\n * mat4.identity(dest);\n * mat4.rotateX(dest, dest, rad);\n *\n * @param {mat4} out mat4 receiving operation result\n * @param {Number} rad the angle to rotate the matrix by\n * @returns {mat4} out\n */\nexport function fromXRotation(out, rad) {\n let s = Math.sin(rad);\n let c = Math.cos(rad);\n\n // Perform axis-specific matrix multiplication\n out[0] = 1;\n out[1] = 0;\n out[2] = 0;\n out[3] = 0;\n out[4] = 0;\n out[5] = c;\n out[6] = s;\n out[7] = 0;\n out[8] = 0;\n out[9] = -s;\n out[10] = c;\n out[11] = 0;\n out[12] = 0;\n out[13] = 0;\n out[14] = 0;\n out[15] = 1;\n return out;\n}\n\n/**\n * Creates a matrix from the given angle around the Y axis\n * This is equivalent to (but much faster than):\n *\n * mat4.identity(dest);\n * mat4.rotateY(dest, dest, rad);\n *\n * @param {mat4} out mat4 receiving operation result\n * @param {Number} rad the angle to rotate the matrix by\n * @returns {mat4} out\n */\nexport function fromYRotation(out, rad) {\n let s = Math.sin(rad);\n let c = Math.cos(rad);\n\n // Perform axis-specific matrix multiplication\n out[0] = c;\n out[1] = 0;\n out[2] = -s;\n out[3] = 0;\n out[4] = 0;\n out[5] = 1;\n out[6] = 0;\n out[7] = 0;\n out[8] = s;\n out[9] = 0;\n out[10] = c;\n out[11] = 0;\n out[12] = 0;\n out[13] = 0;\n out[14] = 0;\n out[15] = 1;\n return out;\n}\n\n/**\n * Creates a matrix from the given angle around the Z axis\n * This is equivalent to (but much faster than):\n *\n * mat4.identity(dest);\n * mat4.rotateZ(dest, dest, rad);\n *\n * @param {mat4} out mat4 receiving operation result\n * @param {Number} rad the angle to rotate the matrix by\n * @returns {mat4} out\n */\nexport function fromZRotation(out, rad) {\n let s = Math.sin(rad);\n let c = Math.cos(rad);\n\n // Perform axis-specific matrix multiplication\n out[0] = c;\n out[1] = s;\n out[2] = 0;\n out[3] = 0;\n out[4] = -s;\n out[5] = c;\n out[6] = 0;\n out[7] = 0;\n out[8] = 0;\n out[9] = 0;\n out[10] = 1;\n out[11] = 0;\n out[12] = 0;\n out[13] = 0;\n out[14] = 0;\n out[15] = 1;\n return out;\n}\n\n/**\n * Creates a matrix from a quaternion rotation and vector translation\n * This is equivalent to (but much faster than):\n *\n * mat4.identity(dest);\n * mat4.translate(dest, vec);\n * let quatMat = mat4.create();\n * quat4.toMat4(quat, quatMat);\n * mat4.multiply(dest, quatMat);\n *\n * @param {mat4} out mat4 receiving operation result\n * @param {quat4} q Rotation quaternion\n * @param {vec3} v Translation vector\n * @returns {mat4} out\n */\nexport function fromRotationTranslation(out, q, v) {\n // Quaternion math\n let x = q[0], y = q[1], z = q[2], w = q[3];\n let x2 = x + x;\n let y2 = y + y;\n let z2 = z + z;\n\n let xx = x * x2;\n let xy = x * y2;\n let xz = x * z2;\n let yy = y * y2;\n let yz = y * z2;\n let zz = z * z2;\n let wx = w * x2;\n let wy = w * y2;\n let wz = w * z2;\n\n out[0] = 1 - (yy + zz);\n out[1] = xy + wz;\n out[2] = xz - wy;\n out[3] = 0;\n out[4] = xy - wz;\n out[5] = 1 - (xx + zz);\n out[6] = yz + wx;\n out[7] = 0;\n out[8] = xz + wy;\n out[9] = yz - wx;\n out[10] = 1 - (xx + yy);\n out[11] = 0;\n out[12] = v[0];\n out[13] = v[1];\n out[14] = v[2];\n out[15] = 1;\n\n return out;\n}\n\n/**\n * Returns the translation vector component of a transformation\n * matrix. If a matrix is built with fromRotationTranslation,\n * the returned vector will be the same as the translation vector\n * originally supplied.\n * @param {vec3} out Vector to receive translation component\n * @param {mat4} mat Matrix to be decomposed (input)\n * @return {vec3} out\n */\nexport function getTranslation(out, mat) {\n out[0] = mat[12];\n out[1] = mat[13];\n out[2] = mat[14];\n\n return out;\n}\n\n/**\n * Returns the scaling factor component of a transformation\n * matrix. If a matrix is built with fromRotationTranslationScale\n * with a normalized Quaternion paramter, the returned vector will be\n * the same as the scaling vector\n * originally supplied.\n * @param {vec3} out Vector to receive scaling factor component\n * @param {mat4} mat Matrix to be decomposed (input)\n * @return {vec3} out\n */\nexport function getScaling(out, mat) {\n let m11 = mat[0];\n let m12 = mat[1];\n let m13 = mat[2];\n let m21 = mat[4];\n let m22 = mat[5];\n let m23 = mat[6];\n let m31 = mat[8];\n let m32 = mat[9];\n let m33 = mat[10];\n\n out[0] = Math.sqrt(m11 * m11 + m12 * m12 + m13 * m13);\n out[1] = Math.sqrt(m21 * m21 + m22 * m22 + m23 * m23);\n out[2] = Math.sqrt(m31 * m31 + m32 * m32 + m33 * m33);\n\n return out;\n}\n\n/**\n * Returns a quaternion representing the rotational component\n * of a transformation matrix. If a matrix is built with\n * fromRotationTranslation, the returned quaternion will be the\n * same as the quaternion originally supplied.\n * @param {quat} out Quaternion to receive the rotation component\n * @param {mat4} mat Matrix to be decomposed (input)\n * @return {quat} out\n */\nexport function getRotation(out, mat) {\n // Algorithm taken from http://www.euclideanspace.com/maths/geometry/rotations/conversions/matrixToQuaternion/index.htm\n let trace = mat[0] + mat[5] + mat[10];\n let S = 0;\n\n if (trace > 0) {\n S = Math.sqrt(trace + 1.0) * 2;\n out[3] = 0.25 * S;\n out[0] = (mat[6] - mat[9]) / S;\n out[1] = (mat[8] - mat[2]) / S;\n out[2] = (mat[1] - mat[4]) / S;\n } else if ((mat[0] > mat[5])&(mat[0] > mat[10])) {\n S = Math.sqrt(1.0 + mat[0] - mat[5] - mat[10]) * 2;\n out[3] = (mat[6] - mat[9]) / S;\n out[0] = 0.25 * S;\n out[1] = (mat[1] + mat[4]) / S;\n out[2] = (mat[8] + mat[2]) / S;\n } else if (mat[5] > mat[10]) {\n S = Math.sqrt(1.0 + mat[5] - mat[0] - mat[10]) * 2;\n out[3] = (mat[8] - mat[2]) / S;\n out[0] = (mat[1] + mat[4]) / S;\n out[1] = 0.25 * S;\n out[2] = (mat[6] + mat[9]) / S;\n } else {\n S = Math.sqrt(1.0 + mat[10] - mat[0] - mat[5]) * 2;\n out[3] = (mat[1] - mat[4]) / S;\n out[0] = (mat[8] + mat[2]) / S;\n out[1] = (mat[6] + mat[9]) / S;\n out[2] = 0.25 * S;\n }\n\n return out;\n}\n\n/**\n * Creates a matrix from a quaternion rotation, vector translation and vector scale\n * This is equivalent to (but much faster than):\n *\n * mat4.identity(dest);\n * mat4.translate(dest, vec);\n * let quatMat = mat4.create();\n * quat4.toMat4(quat, quatMat);\n * mat4.multiply(dest, quatMat);\n * mat4.scale(dest, scale)\n *\n * @param {mat4} out mat4 receiving operation result\n * @param {quat4} q Rotation quaternion\n * @param {vec3} v Translation vector\n * @param {vec3} s Scaling vector\n * @returns {mat4} out\n */\nexport function fromRotationTranslationScale(out, q, v, s) {\n // Quaternion math\n let x = q[0], y = q[1], z = q[2], w = q[3];\n let x2 = x + x;\n let y2 = y + y;\n let z2 = z + z;\n\n let xx = x * x2;\n let xy = x * y2;\n let xz = x * z2;\n let yy = y * y2;\n let yz = y * z2;\n let zz = z * z2;\n let wx = w * x2;\n let wy = w * y2;\n let wz = w * z2;\n let sx = s[0];\n let sy = s[1];\n let sz = s[2];\n\n out[0] = (1 - (yy + zz)) * sx;\n out[1] = (xy + wz) * sx;\n out[2] = (xz - wy) * sx;\n out[3] = 0;\n out[4] = (xy - wz) * sy;\n out[5] = (1 - (xx + zz)) * sy;\n out[6] = (yz + wx) * sy;\n out[7] = 0;\n out[8] = (xz + wy) * sz;\n out[9] = (yz - wx) * sz;\n out[10] = (1 - (xx + yy)) * sz;\n out[11] = 0;\n out[12] = v[0];\n out[13] = v[1];\n out[14] = v[2];\n out[15] = 1;\n\n return out;\n}\n\n/**\n * Creates a matrix from a quaternion rotation, vector translation and vector scale, rotating and scaling around the given origin\n * This is equivalent to (but much faster than):\n *\n * mat4.identity(dest);\n * mat4.translate(dest, vec);\n * mat4.translate(dest, origin);\n * let quatMat = mat4.create();\n * quat4.toMat4(quat, quatMat);\n * mat4.multiply(dest, quatMat);\n * mat4.scale(dest, scale)\n * mat4.translate(dest, negativeOrigin);\n *\n * @param {mat4} out mat4 receiving operation result\n * @param {quat4} q Rotation quaternion\n * @param {vec3} v Translation vector\n * @param {vec3} s Scaling vector\n * @param {vec3} o The origin vector around which to scale and rotate\n * @returns {mat4} out\n */\nexport function fromRotationTranslationScaleOrigin(out, q, v, s, o) {\n // Quaternion math\n let x = q[0], y = q[1], z = q[2], w = q[3];\n let x2 = x + x;\n let y2 = y + y;\n let z2 = z + z;\n\n let xx = x * x2;\n let xy = x * y2;\n let xz = x * z2;\n let yy = y * y2;\n let yz = y * z2;\n let zz = z * z2;\n let wx = w * x2;\n let wy = w * y2;\n let wz = w * z2;\n\n let sx = s[0];\n let sy = s[1];\n let sz = s[2];\n\n let ox = o[0];\n let oy = o[1];\n let oz = o[2];\n\n out[0] = (1 - (yy + zz)) * sx;\n out[1] = (xy + wz) * sx;\n out[2] = (xz - wy) * sx;\n out[3] = 0;\n out[4] = (xy - wz) * sy;\n out[5] = (1 - (xx + zz)) * sy;\n out[6] = (yz + wx) * sy;\n out[7] = 0;\n out[8] = (xz + wy) * sz;\n out[9] = (yz - wx) * sz;\n out[10] = (1 - (xx + yy)) * sz;\n out[11] = 0;\n out[12] = v[0] + ox - (out[0] * ox + out[4] * oy + out[8] * oz);\n out[13] = v[1] + oy - (out[1] * ox + out[5] * oy + out[9] * oz);\n out[14] = v[2] + oz - (out[2] * ox + out[6] * oy + out[10] * oz);\n out[15] = 1;\n\n return out;\n}\n\n/**\n * Calculates a 4x4 matrix from the given quaternion\n *\n * @param {mat4} out mat4 receiving operation result\n * @param {quat} q Quaternion to create matrix from\n *\n * @returns {mat4} out\n */\nexport function fromQuat(out, q) {\n let x = q[0], y = q[1], z = q[2], w = q[3];\n let x2 = x + x;\n let y2 = y + y;\n let z2 = z + z;\n\n let xx = x * x2;\n let yx = y * x2;\n let yy = y * y2;\n let zx = z * x2;\n let zy = z * y2;\n let zz = z * z2;\n let wx = w * x2;\n let wy = w * y2;\n let wz = w * z2;\n\n out[0] = 1 - yy - zz;\n out[1] = yx + wz;\n out[2] = zx - wy;\n out[3] = 0;\n\n out[4] = yx - wz;\n out[5] = 1 - xx - zz;\n out[6] = zy + wx;\n out[7] = 0;\n\n out[8] = zx + wy;\n out[9] = zy - wx;\n out[10] = 1 - xx - yy;\n out[11] = 0;\n\n out[12] = 0;\n out[13] = 0;\n out[14] = 0;\n out[15] = 1;\n\n return out;\n}\n\n/**\n * Generates a frustum matrix with the given bounds\n *\n * @param {mat4} out mat4 frustum matrix will be written into\n * @param {Number} left Left bound of the frustum\n * @param {Number} right Right bound of the frustum\n * @param {Number} bottom Bottom bound of the frustum\n * @param {Number} top Top bound of the frustum\n * @param {Number} near Near bound of the frustum\n * @param {Number} far Far bound of the frustum\n * @returns {mat4} out\n */\nexport function frustum(out, left, right, bottom, top, near, far) {\n let rl = 1 / (right - left);\n let tb = 1 / (top - bottom);\n let nf = 1 / (near - far);\n out[0] = (near * 2) * rl;\n out[1] = 0;\n out[2] = 0;\n out[3] = 0;\n out[4] = 0;\n out[5] = (near * 2) * tb;\n out[6] = 0;\n out[7] = 0;\n out[8] = (right + left) * rl;\n out[9] = (top + bottom) * tb;\n out[10] = (far + near) * nf;\n out[11] = -1;\n out[12] = 0;\n out[13] = 0;\n out[14] = (far * near * 2) * nf;\n out[15] = 0;\n return out;\n}\n\n/**\n * Generates a perspective projection matrix with the given bounds\n *\n * @param {mat4} out mat4 frustum matrix will be written into\n * @param {number} fovy Vertical field of view in radians\n * @param {number} aspect Aspect ratio. typically viewport width/height\n * @param {number} near Near bound of the frustum\n * @param {number} far Far bound of the frustum\n * @returns {mat4} out\n */\nexport function perspective(out, fovy, aspect, near, far) {\n let f = 1.0 / Math.tan(fovy / 2);\n let nf = 1 / (near - far);\n out[0] = f / aspect;\n out[1] = 0;\n out[2] = 0;\n out[3] = 0;\n out[4] = 0;\n out[5] = f;\n out[6] = 0;\n out[7] = 0;\n out[8] = 0;\n out[9] = 0;\n out[10] = (far + near) * nf;\n out[11] = -1;\n out[12] = 0;\n out[13] = 0;\n out[14] = (2 * far * near) * nf;\n out[15] = 0;\n return out;\n}\n\n/**\n * Generates a perspective projection matrix with the given field of view.\n * This is primarily useful for generating projection matrices to be used\n * with the still experiemental WebVR API.\n *\n * @param {mat4} out mat4 frustum matrix will be written into\n * @param {Object} fov Object containing the following values: upDegrees, downDegrees, leftDegrees, rightDegrees\n * @param {number} near Near bound of the frustum\n * @param {number} far Far bound of the frustum\n * @returns {mat4} out\n */\nexport function perspectiveFromFieldOfView(out, fov, near, far) {\n let upTan = Math.tan(fov.upDegrees * Math.PI/180.0);\n let downTan = Math.tan(fov.downDegrees * Math.PI/180.0);\n let leftTan = Math.tan(fov.leftDegrees * Math.PI/180.0);\n let rightTan = Math.tan(fov.rightDegrees * Math.PI/180.0);\n let xScale = 2.0 / (leftTan + rightTan);\n let yScale = 2.0 / (upTan + downTan);\n\n out[0] = xScale;\n out[1] = 0.0;\n out[2] = 0.0;\n out[3] = 0.0;\n out[4] = 0.0;\n out[5] = yScale;\n out[6] = 0.0;\n out[7] = 0.0;\n out[8] = -((leftTan - rightTan) * xScale * 0.5);\n out[9] = ((upTan - downTan) * yScale * 0.5);\n out[10] = far / (near - far);\n out[11] = -1.0;\n out[12] = 0.0;\n out[13] = 0.0;\n out[14] = (far * near) / (near - far);\n out[15] = 0.0;\n return out;\n}\n\n/**\n * Generates a orthogonal projection matrix with the given bounds\n *\n * @param {mat4} out mat4 frustum matrix will be written into\n * @param {number} left Left bound of the frustum\n * @param {number} right Right bound of the frustum\n * @param {number} bottom Bottom bound of the frustum\n * @param {number} top Top bound of the frustum\n * @param {number} near Near bound of the frustum\n * @param {number} far Far bound of the frustum\n * @returns {mat4} out\n */\nexport function ortho(out, left, right, bottom, top, near, far) {\n let lr = 1 / (left - right);\n let bt = 1 / (bottom - top);\n let nf = 1 / (near - far);\n out[0] = -2 * lr;\n out[1] = 0;\n out[2] = 0;\n out[3] = 0;\n out[4] = 0;\n out[5] = -2 * bt;\n out[6] = 0;\n out[7] = 0;\n out[8] = 0;\n out[9] = 0;\n out[10] = 2 * nf;\n out[11] = 0;\n out[12] = (left + right) * lr;\n out[13] = (top + bottom) * bt;\n out[14] = (far + near) * nf;\n out[15] = 1;\n return out;\n}\n\n/**\n * Generates a look-at matrix with the given eye position, focal point, and up axis\n *\n * @param {mat4} out mat4 frustum matrix will be written into\n * @param {vec3} eye Position of the viewer\n * @param {vec3} center Point the viewer is looking at\n * @param {vec3} up vec3 pointing up\n * @returns {mat4} out\n */\nexport function lookAt(out, eye, center, up) {\n let x0, x1, x2, y0, y1, y2, z0, z1, z2, len;\n let eyex = eye[0];\n let eyey = eye[1];\n let eyez = eye[2];\n let upx = up[0];\n let upy = up[1];\n let upz = up[2];\n let centerx = center[0];\n let centery = center[1];\n let centerz = center[2];\n\n if (Math.abs(eyex - centerx) < glMatrix.EPSILON &&\n Math.abs(eyey - centery) < glMatrix.EPSILON &&\n Math.abs(eyez - centerz) < glMatrix.EPSILON) {\n return mat4.identity(out);\n }\n\n z0 = eyex - centerx;\n z1 = eyey - centery;\n z2 = eyez - centerz;\n\n len = 1 / Math.sqrt(z0 * z0 + z1 * z1 + z2 * z2);\n z0 *= len;\n z1 *= len;\n z2 *= len;\n\n x0 = upy * z2 - upz * z1;\n x1 = upz * z0 - upx * z2;\n x2 = upx * z1 - upy * z0;\n len = Math.sqrt(x0 * x0 + x1 * x1 + x2 * x2);\n if (!len) {\n x0 = 0;\n x1 = 0;\n x2 = 0;\n } else {\n len = 1 / len;\n x0 *= len;\n x1 *= len;\n x2 *= len;\n }\n\n y0 = z1 * x2 - z2 * x1;\n y1 = z2 * x0 - z0 * x2;\n y2 = z0 * x1 - z1 * x0;\n\n len = Math.sqrt(y0 * y0 + y1 * y1 + y2 * y2);\n if (!len) {\n y0 = 0;\n y1 = 0;\n y2 = 0;\n } else {\n len = 1 / len;\n y0 *= len;\n y1 *= len;\n y2 *= len;\n }\n\n out[0] = x0;\n out[1] = y0;\n out[2] = z0;\n out[3] = 0;\n out[4] = x1;\n out[5] = y1;\n out[6] = z1;\n out[7] = 0;\n out[8] = x2;\n out[9] = y2;\n out[10] = z2;\n out[11] = 0;\n out[12] = -(x0 * eyex + x1 * eyey + x2 * eyez);\n out[13] = -(y0 * eyex + y1 * eyey + y2 * eyez);\n out[14] = -(z0 * eyex + z1 * eyey + z2 * eyez);\n out[15] = 1;\n\n return out;\n}\n\n/**\n * Generates a matrix that makes something look at something else.\n *\n * @param {mat4} out mat4 frustum matrix will be written into\n * @param {vec3} eye Position of the viewer\n * @param {vec3} center Point the viewer is looking at\n * @param {vec3} up vec3 pointing up\n * @returns {mat4} out\n */\nexport function targetTo(out, eye, target, up) {\n let eyex = eye[0],\n eyey = eye[1],\n eyez = eye[2],\n upx = up[0],\n upy = up[1],\n upz = up[2];\n\n let z0 = eyex - target[0],\n z1 = eyey - target[1],\n z2 = eyez - target[2];\n\n let len = z0*z0 + z1*z1 + z2*z2;\n if (len > 0) {\n len = 1 / Math.sqrt(len);\n z0 *= len;\n z1 *= len;\n z2 *= len;\n }\n\n let x0 = upy * z2 - upz * z1,\n x1 = upz * z0 - upx * z2,\n x2 = upx * z1 - upy * z0;\n\n out[0] = x0;\n out[1] = x1;\n out[2] = x2;\n out[3] = 0;\n out[4] = z1 * x2 - z2 * x1;\n out[5] = z2 * x0 - z0 * x2;\n out[6] = z0 * x1 - z1 * x0;\n out[7] = 0;\n out[8] = z0;\n out[9] = z1;\n out[10] = z2;\n out[11] = 0;\n out[12] = eyex;\n out[13] = eyey;\n out[14] = eyez;\n out[15] = 1;\n return out;\n};\n\n/**\n * Returns a string representation of a mat4\n *\n * @param {mat4} a matrix to represent as a string\n * @returns {String} string representation of the matrix\n */\nexport function str(a) {\n return 'mat4(' + a[0] + ', ' + a[1] + ', ' + a[2] + ', ' + a[3] + ', ' +\n a[4] + ', ' + a[5] + ', ' + a[6] + ', ' + a[7] + ', ' +\n a[8] + ', ' + a[9] + ', ' + a[10] + ', ' + a[11] + ', ' +\n a[12] + ', ' + a[13] + ', ' + a[14] + ', ' + a[15] + ')';\n}\n\n/**\n * Returns Frobenius norm of a mat4\n *\n * @param {mat4} a the matrix to calculate Frobenius norm of\n * @returns {Number} Frobenius norm\n */\nexport function frob(a) {\n return(Math.sqrt(Math.pow(a[0], 2) + Math.pow(a[1], 2) + Math.pow(a[2], 2) + Math.pow(a[3], 2) + Math.pow(a[4], 2) + Math.pow(a[5], 2) + Math.pow(a[6], 2) + Math.pow(a[7], 2) + Math.pow(a[8], 2) + Math.pow(a[9], 2) + Math.pow(a[10], 2) + Math.pow(a[11], 2) + Math.pow(a[12], 2) + Math.pow(a[13], 2) + Math.pow(a[14], 2) + Math.pow(a[15], 2) ))\n}\n\n/**\n * Adds two mat4's\n *\n * @param {mat4} out the receiving matrix\n * @param {mat4} a the first operand\n * @param {mat4} b the second operand\n * @returns {mat4} out\n */\nexport function add(out, a, b) {\n out[0] = a[0] + b[0];\n out[1] = a[1] + b[1];\n out[2] = a[2] + b[2];\n out[3] = a[3] + b[3];\n out[4] = a[4] + b[4];\n out[5] = a[5] + b[5];\n out[6] = a[6] + b[6];\n out[7] = a[7] + b[7];\n out[8] = a[8] + b[8];\n out[9] = a[9] + b[9];\n out[10] = a[10] + b[10];\n out[11] = a[11] + b[11];\n out[12] = a[12] + b[12];\n out[13] = a[13] + b[13];\n out[14] = a[14] + b[14];\n out[15] = a[15] + b[15];\n return out;\n}\n\n/**\n * Subtracts matrix b from matrix a\n *\n * @param {mat4} out the receiving matrix\n * @param {mat4} a the first operand\n * @param {mat4} b the second operand\n * @returns {mat4} out\n */\nexport function subtract(out, a, b) {\n out[0] = a[0] - b[0];\n out[1] = a[1] - b[1];\n out[2] = a[2] - b[2];\n out[3] = a[3] - b[3];\n out[4] = a[4] - b[4];\n out[5] = a[5] - b[5];\n out[6] = a[6] - b[6];\n out[7] = a[7] - b[7];\n out[8] = a[8] - b[8];\n out[9] = a[9] - b[9];\n out[10] = a[10] - b[10];\n out[11] = a[11] - b[11];\n out[12] = a[12] - b[12];\n out[13] = a[13] - b[13];\n out[14] = a[14] - b[14];\n out[15] = a[15] - b[15];\n return out;\n}\n\n/**\n * Multiply each element of the matrix by a scalar.\n *\n * @param {mat4} out the receiving matrix\n * @param {mat4} a the matrix to scale\n * @param {Number} b amount to scale the matrix's elements by\n * @returns {mat4} out\n */\nexport function multiplyScalar(out, a, b) {\n out[0] = a[0] * b;\n out[1] = a[1] * b;\n out[2] = a[2] * b;\n out[3] = a[3] * b;\n out[4] = a[4] * b;\n out[5] = a[5] * b;\n out[6] = a[6] * b;\n out[7] = a[7] * b;\n out[8] = a[8] * b;\n out[9] = a[9] * b;\n out[10] = a[10] * b;\n out[11] = a[11] * b;\n out[12] = a[12] * b;\n out[13] = a[13] * b;\n out[14] = a[14] * b;\n out[15] = a[15] * b;\n return out;\n}\n\n/**\n * Adds two mat4's after multiplying each element of the second operand by a scalar value.\n *\n * @param {mat4} out the receiving vector\n * @param {mat4} a the first operand\n * @param {mat4} b the second operand\n * @param {Number} scale the amount to scale b's elements by before adding\n * @returns {mat4} out\n */\nexport function multiplyScalarAndAdd(out, a, b, scale) {\n out[0] = a[0] + (b[0] * scale);\n out[1] = a[1] + (b[1] * scale);\n out[2] = a[2] + (b[2] * scale);\n out[3] = a[3] + (b[3] * scale);\n out[4] = a[4] + (b[4] * scale);\n out[5] = a[5] + (b[5] * scale);\n out[6] = a[6] + (b[6] * scale);\n out[7] = a[7] + (b[7] * scale);\n out[8] = a[8] + (b[8] * scale);\n out[9] = a[9] + (b[9] * scale);\n out[10] = a[10] + (b[10] * scale);\n out[11] = a[11] + (b[11] * scale);\n out[12] = a[12] + (b[12] * scale);\n out[13] = a[13] + (b[13] * scale);\n out[14] = a[14] + (b[14] * scale);\n out[15] = a[15] + (b[15] * scale);\n return out;\n}\n\n/**\n * Returns whether or not the matrices have exactly the same elements in the same position (when compared with ===)\n *\n * @param {mat4} a The first matrix.\n * @param {mat4} b The second matrix.\n * @returns {Boolean} True if the matrices are equal, false otherwise.\n */\nexport function exactEquals(a, b) {\n return a[0] === b[0] && a[1] === b[1] && a[2] === b[2] && a[3] === b[3] &&\n a[4] === b[4] && a[5] === b[5] && a[6] === b[6] && a[7] === b[7] &&\n a[8] === b[8] && a[9] === b[9] && a[10] === b[10] && a[11] === b[11] &&\n a[12] === b[12] && a[13] === b[13] && a[14] === b[14] && a[15] === b[15];\n}\n\n/**\n * Returns whether or not the matrices have approximately the same elements in the same position.\n *\n * @param {mat4} a The first matrix.\n * @param {mat4} b The second matrix.\n * @returns {Boolean} True if the matrices are equal, false otherwise.\n */\nexport function equals(a, b) {\n let a0 = a[0], a1 = a[1], a2 = a[2], a3 = a[3];\n let a4 = a[4], a5 = a[5], a6 = a[6], a7 = a[7];\n let a8 = a[8], a9 = a[9], a10 = a[10], a11 = a[11];\n let a12 = a[12], a13 = a[13], a14 = a[14], a15 = a[15];\n\n let b0 = b[0], b1 = b[1], b2 = b[2], b3 = b[3];\n let b4 = b[4], b5 = b[5], b6 = b[6], b7 = b[7];\n let b8 = b[8], b9 = b[9], b10 = b[10], b11 = b[11];\n let b12 = b[12], b13 = b[13], b14 = b[14], b15 = b[15];\n\n return (Math.abs(a0 - b0) <= glMatrix.EPSILON*Math.max(1.0, Math.abs(a0), Math.abs(b0)) &&\n Math.abs(a1 - b1) <= glMatrix.EPSILON*Math.max(1.0, Math.abs(a1), Math.abs(b1)) &&\n Math.abs(a2 - b2) <= glMatrix.EPSILON*Math.max(1.0, Math.abs(a2), Math.abs(b2)) &&\n Math.abs(a3 - b3) <= glMatrix.EPSILON*Math.max(1.0, Math.abs(a3), Math.abs(b3)) &&\n Math.abs(a4 - b4) <= glMatrix.EPSILON*Math.max(1.0, Math.abs(a4), Math.abs(b4)) &&\n Math.abs(a5 - b5) <= glMatrix.EPSILON*Math.max(1.0, Math.abs(a5), Math.abs(b5)) &&\n Math.abs(a6 - b6) <= glMatrix.EPSILON*Math.max(1.0, Math.abs(a6), Math.abs(b6)) &&\n Math.abs(a7 - b7) <= glMatrix.EPSILON*Math.max(1.0, Math.abs(a7), Math.abs(b7)) &&\n Math.abs(a8 - b8) <= glMatrix.EPSILON*Math.max(1.0, Math.abs(a8), Math.abs(b8)) &&\n Math.abs(a9 - b9) <= glMatrix.EPSILON*Math.max(1.0, Math.abs(a9), Math.abs(b9)) &&\n Math.abs(a10 - b10) <= glMatrix.EPSILON*Math.max(1.0, Math.abs(a10), Math.abs(b10)) &&\n Math.abs(a11 - b11) <= glMatrix.EPSILON*Math.max(1.0, Math.abs(a11), Math.abs(b11)) &&\n Math.abs(a12 - b12) <= glMatrix.EPSILON*Math.max(1.0, Math.abs(a12), Math.abs(b12)) &&\n Math.abs(a13 - b13) <= glMatrix.EPSILON*Math.max(1.0, Math.abs(a13), Math.abs(b13)) &&\n Math.abs(a14 - b14) <= glMatrix.EPSILON*Math.max(1.0, Math.abs(a14), Math.abs(b14)) &&\n Math.abs(a15 - b15) <= glMatrix.EPSILON*Math.max(1.0, Math.abs(a15), Math.abs(b15)));\n}\n\n/**\n * Alias for {@link mat4.multiply}\n * @function\n */\nexport const mul = multiply;\n\n/**\n * Alias for {@link mat4.subtract}\n * @function\n */\nexport const sub = subtract;\n\n\n\n//////////////////\n// WEBPACK FOOTER\n// ./node_modules/gl-matrix/src/gl-matrix/mat4.js\n// module id = 22\n// module chunks = 0","/* Copyright (c) 2015, Brandon Jones, Colin MacKenzie IV.\n\nPermission is hereby granted, free of charge, to any person obtaining a copy\nof this software and associated documentation files (the \"Software\"), to deal\nin the Software without restriction, including without limitation the rights\nto use, copy, modify, merge, publish, distribute, sublicense, and/or sell\ncopies of the Software, and to permit persons to whom the Software is\nfurnished to do so, subject to the following conditions:\n\nThe above copyright notice and this permission notice shall be included in\nall copies or substantial portions of the Software.\n\nTHE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\nIMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\nFITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE\nAUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\nLIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,\nOUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN\nTHE SOFTWARE. */\n\nimport * as glMatrix from \"./common\"\nimport * as mat3 from \"./mat3\"\nimport * as vec3 from \"./vec3\"\nimport * as vec4 from \"./vec4\"\n\n/**\n * Quaternion\n * @module quat\n */\n\n/**\n * Creates a new identity quat\n *\n * @returns {quat} a new quaternion\n */\nexport function create() {\n let out = new glMatrix.ARRAY_TYPE(4);\n out[0] = 0;\n out[1] = 0;\n out[2] = 0;\n out[3] = 1;\n return out;\n}\n\n/**\n * Set a quat to the identity quaternion\n *\n * @param {quat} out the receiving quaternion\n * @returns {quat} out\n */\nexport function identity(out) {\n out[0] = 0;\n out[1] = 0;\n out[2] = 0;\n out[3] = 1;\n return out;\n}\n\n/**\n * Sets a quat from the given angle and rotation axis,\n * then returns it.\n *\n * @param {quat} out the receiving quaternion\n * @param {vec3} axis the axis around which to rotate\n * @param {Number} rad the angle in radians\n * @returns {quat} out\n **/\nexport function setAxisAngle(out, axis, rad) {\n rad = rad * 0.5;\n let s = Math.sin(rad);\n out[0] = s * axis[0];\n out[1] = s * axis[1];\n out[2] = s * axis[2];\n out[3] = Math.cos(rad);\n return out;\n}\n\n/**\n * Gets the rotation axis and angle for a given\n * quaternion. If a quaternion is created with\n * setAxisAngle, this method will return the same\n * values as providied in the original parameter list\n * OR functionally equivalent values.\n * Example: The quaternion formed by axis [0, 0, 1] and\n * angle -90 is the same as the quaternion formed by\n * [0, 0, 1] and 270. This method favors the latter.\n * @param {vec3} out_axis Vector receiving the axis of rotation\n * @param {quat} q Quaternion to be decomposed\n * @return {Number} Angle, in radians, of the rotation\n */\nexport function getAxisAngle(out_axis, q) {\n let rad = Math.acos(q[3]) * 2.0;\n let s = Math.sin(rad / 2.0);\n if (s != 0.0) {\n out_axis[0] = q[0] / s;\n out_axis[1] = q[1] / s;\n out_axis[2] = q[2] / s;\n } else {\n // If s is zero, return any axis (no rotation - axis does not matter)\n out_axis[0] = 1;\n out_axis[1] = 0;\n out_axis[2] = 0;\n }\n return rad;\n}\n\n/**\n * Multiplies two quat's\n *\n * @param {quat} out the receiving quaternion\n * @param {quat} a the first operand\n * @param {quat} b the second operand\n * @returns {quat} out\n */\nexport function multiply(out, a, b) {\n let ax = a[0], ay = a[1], az = a[2], aw = a[3];\n let bx = b[0], by = b[1], bz = b[2], bw = b[3];\n\n out[0] = ax * bw + aw * bx + ay * bz - az * by;\n out[1] = ay * bw + aw * by + az * bx - ax * bz;\n out[2] = az * bw + aw * bz + ax * by - ay * bx;\n out[3] = aw * bw - ax * bx - ay * by - az * bz;\n return out;\n}\n\n/**\n * Rotates a quaternion by the given angle about the X axis\n *\n * @param {quat} out quat receiving operation result\n * @param {quat} a quat to rotate\n * @param {number} rad angle (in radians) to rotate\n * @returns {quat} out\n */\nexport function rotateX(out, a, rad) {\n rad *= 0.5;\n\n let ax = a[0], ay = a[1], az = a[2], aw = a[3];\n let bx = Math.sin(rad), bw = Math.cos(rad);\n\n out[0] = ax * bw + aw * bx;\n out[1] = ay * bw + az * bx;\n out[2] = az * bw - ay * bx;\n out[3] = aw * bw - ax * bx;\n return out;\n}\n\n/**\n * Rotates a quaternion by the given angle about the Y axis\n *\n * @param {quat} out quat receiving operation result\n * @param {quat} a quat to rotate\n * @param {number} rad angle (in radians) to rotate\n * @returns {quat} out\n */\nexport function rotateY(out, a, rad) {\n rad *= 0.5;\n\n let ax = a[0], ay = a[1], az = a[2], aw = a[3];\n let by = Math.sin(rad), bw = Math.cos(rad);\n\n out[0] = ax * bw - az * by;\n out[1] = ay * bw + aw * by;\n out[2] = az * bw + ax * by;\n out[3] = aw * bw - ay * by;\n return out;\n}\n\n/**\n * Rotates a quaternion by the given angle about the Z axis\n *\n * @param {quat} out quat receiving operation result\n * @param {quat} a quat to rotate\n * @param {number} rad angle (in radians) to rotate\n * @returns {quat} out\n */\nexport function rotateZ(out, a, rad) {\n rad *= 0.5;\n\n let ax = a[0], ay = a[1], az = a[2], aw = a[3];\n let bz = Math.sin(rad), bw = Math.cos(rad);\n\n out[0] = ax * bw + ay * bz;\n out[1] = ay * bw - ax * bz;\n out[2] = az * bw + aw * bz;\n out[3] = aw * bw - az * bz;\n return out;\n}\n\n/**\n * Calculates the W component of a quat from the X, Y, and Z components.\n * Assumes that quaternion is 1 unit in length.\n * Any existing W component will be ignored.\n *\n * @param {quat} out the receiving quaternion\n * @param {quat} a quat to calculate W component of\n * @returns {quat} out\n */\nexport function calculateW(out, a) {\n let x = a[0], y = a[1], z = a[2];\n\n out[0] = x;\n out[1] = y;\n out[2] = z;\n out[3] = Math.sqrt(Math.abs(1.0 - x * x - y * y - z * z));\n return out;\n}\n\n/**\n * Performs a spherical linear interpolation between two quat\n *\n * @param {quat} out the receiving quaternion\n * @param {quat} a the first operand\n * @param {quat} b the second operand\n * @param {Number} t interpolation amount between the two inputs\n * @returns {quat} out\n */\nexport function slerp(out, a, b, t) {\n // benchmarks:\n // http://jsperf.com/quaternion-slerp-implementations\n let ax = a[0], ay = a[1], az = a[2], aw = a[3];\n let bx = b[0], by = b[1], bz = b[2], bw = b[3];\n\n let omega, cosom, sinom, scale0, scale1;\n\n // calc cosine\n cosom = ax * bx + ay * by + az * bz + aw * bw;\n // adjust signs (if necessary)\n if ( cosom < 0.0 ) {\n cosom = -cosom;\n bx = - bx;\n by = - by;\n bz = - bz;\n bw = - bw;\n }\n // calculate coefficients\n if ( (1.0 - cosom) > 0.000001 ) {\n // standard case (slerp)\n omega = Math.acos(cosom);\n sinom = Math.sin(omega);\n scale0 = Math.sin((1.0 - t) * omega) / sinom;\n scale1 = Math.sin(t * omega) / sinom;\n } else {\n // \"from\" and \"to\" quaternions are very close\n // ... so we can do a linear interpolation\n scale0 = 1.0 - t;\n scale1 = t;\n }\n // calculate final values\n out[0] = scale0 * ax + scale1 * bx;\n out[1] = scale0 * ay + scale1 * by;\n out[2] = scale0 * az + scale1 * bz;\n out[3] = scale0 * aw + scale1 * bw;\n\n return out;\n}\n\n/**\n * Calculates the inverse of a quat\n *\n * @param {quat} out the receiving quaternion\n * @param {quat} a quat to calculate inverse of\n * @returns {quat} out\n */\nexport function invert(out, a) {\n let a0 = a[0], a1 = a[1], a2 = a[2], a3 = a[3];\n let dot = a0*a0 + a1*a1 + a2*a2 + a3*a3;\n let invDot = dot ? 1.0/dot : 0;\n\n // TODO: Would be faster to return [0,0,0,0] immediately if dot == 0\n\n out[0] = -a0*invDot;\n out[1] = -a1*invDot;\n out[2] = -a2*invDot;\n out[3] = a3*invDot;\n return out;\n}\n\n/**\n * Calculates the conjugate of a quat\n * If the quaternion is normalized, this function is faster than quat.inverse and produces the same result.\n *\n * @param {quat} out the receiving quaternion\n * @param {quat} a quat to calculate conjugate of\n * @returns {quat} out\n */\nexport function conjugate(out, a) {\n out[0] = -a[0];\n out[1] = -a[1];\n out[2] = -a[2];\n out[3] = a[3];\n return out;\n}\n\n/**\n * Creates a quaternion from the given 3x3 rotation matrix.\n *\n * NOTE: The resultant quaternion is not normalized, so you should be sure\n * to renormalize the quaternion yourself where necessary.\n *\n * @param {quat} out the receiving quaternion\n * @param {mat3} m rotation matrix\n * @returns {quat} out\n * @function\n */\nexport function fromMat3(out, m) {\n // Algorithm in Ken Shoemake's article in 1987 SIGGRAPH course notes\n // article \"Quaternion Calculus and Fast Animation\".\n let fTrace = m[0] + m[4] + m[8];\n let fRoot;\n\n if ( fTrace > 0.0 ) {\n // |w| > 1/2, may as well choose w > 1/2\n fRoot = Math.sqrt(fTrace + 1.0); // 2w\n out[3] = 0.5 * fRoot;\n fRoot = 0.5/fRoot; // 1/(4w)\n out[0] = (m[5]-m[7])*fRoot;\n out[1] = (m[6]-m[2])*fRoot;\n out[2] = (m[1]-m[3])*fRoot;\n } else {\n // |w| <= 1/2\n let i = 0;\n if ( m[4] > m[0] )\n i = 1;\n if ( m[8] > m[i*3+i] )\n i = 2;\n let j = (i+1)%3;\n let k = (i+2)%3;\n\n fRoot = Math.sqrt(m[i*3+i]-m[j*3+j]-m[k*3+k] + 1.0);\n out[i] = 0.5 * fRoot;\n fRoot = 0.5 / fRoot;\n out[3] = (m[j*3+k] - m[k*3+j]) * fRoot;\n out[j] = (m[j*3+i] + m[i*3+j]) * fRoot;\n out[k] = (m[k*3+i] + m[i*3+k]) * fRoot;\n }\n\n return out;\n}\n\n/**\n * Creates a quaternion from the given euler angle x, y, z.\n *\n * @param {quat} out the receiving quaternion\n * @param {x} Angle to rotate around X axis in degrees.\n * @param {y} Angle to rotate around Y axis in degrees.\n * @param {z} Angle to rotate around Z axis in degrees.\n * @returns {quat} out\n * @function\n */\nexport function fromEuler(out, x, y, z) {\n let halfToRad = 0.5 * Math.PI / 180.0;\n x *= halfToRad;\n y *= halfToRad;\n z *= halfToRad;\n\n let sx = Math.sin(x);\n let cx = Math.cos(x);\n let sy = Math.sin(y);\n let cy = Math.cos(y);\n let sz = Math.sin(z);\n let cz = Math.cos(z);\n\n out[0] = sx * cy * cz - cx * sy * sz;\n out[1] = cx * sy * cz + sx * cy * sz;\n out[2] = cx * cy * sz - sx * sy * cz;\n out[3] = cx * cy * cz + sx * sy * sz;\n\n return out;\n}\n\n/**\n * Returns a string representation of a quatenion\n *\n * @param {quat} a vector to represent as a string\n * @returns {String} string representation of the vector\n */\nexport function str(a) {\n return 'quat(' + a[0] + ', ' + a[1] + ', ' + a[2] + ', ' + a[3] + ')';\n}\n\n/**\n * Creates a new quat initialized with values from an existing quaternion\n *\n * @param {quat} a quaternion to clone\n * @returns {quat} a new quaternion\n * @function\n */\nexport const clone = vec4.clone;\n\n/**\n * Creates a new quat initialized with the given values\n *\n * @param {Number} x X component\n * @param {Number} y Y component\n * @param {Number} z Z component\n * @param {Number} w W component\n * @returns {quat} a new quaternion\n * @function\n */\nexport const fromValues = vec4.fromValues;\n\n/**\n * Copy the values from one quat to another\n *\n * @param {quat} out the receiving quaternion\n * @param {quat} a the source quaternion\n * @returns {quat} out\n * @function\n */\nexport const copy = vec4.copy;\n\n/**\n * Set the components of a quat to the given values\n *\n * @param {quat} out the receiving quaternion\n * @param {Number} x X component\n * @param {Number} y Y component\n * @param {Number} z Z component\n * @param {Number} w W component\n * @returns {quat} out\n * @function\n */\nexport const set = vec4.set;\n\n/**\n * Adds two quat's\n *\n * @param {quat} out the receiving quaternion\n * @param {quat} a the first operand\n * @param {quat} b the second operand\n * @returns {quat} out\n * @function\n */\nexport const add = vec4.add;\n\n/**\n * Alias for {@link quat.multiply}\n * @function\n */\nexport const mul = multiply;\n\n/**\n * Scales a quat by a scalar number\n *\n * @param {quat} out the receiving vector\n * @param {quat} a the vector to scale\n * @param {Number} b amount to scale the vector by\n * @returns {quat} out\n * @function\n */\nexport const scale = vec4.scale;\n\n/**\n * Calculates the dot product of two quat's\n *\n * @param {quat} a the first operand\n * @param {quat} b the second operand\n * @returns {Number} dot product of a and b\n * @function\n */\nexport const dot = vec4.dot;\n\n/**\n * Performs a linear interpolation between two quat's\n *\n * @param {quat} out the receiving quaternion\n * @param {quat} a the first operand\n * @param {quat} b the second operand\n * @param {Number} t interpolation amount between the two inputs\n * @returns {quat} out\n * @function\n */\nexport const lerp = vec4.lerp;\n\n/**\n * Calculates the length of a quat\n *\n * @param {quat} a vector to calculate length of\n * @returns {Number} length of a\n */\nexport const length = vec4.length;\n\n/**\n * Alias for {@link quat.length}\n * @function\n */\nexport const len = length;\n\n/**\n * Calculates the squared length of a quat\n *\n * @param {quat} a vector to calculate squared length of\n * @returns {Number} squared length of a\n * @function\n */\nexport const squaredLength = vec4.squaredLength;\n\n/**\n * Alias for {@link quat.squaredLength}\n * @function\n */\nexport const sqrLen = squaredLength;\n\n/**\n * Normalize a quat\n *\n * @param {quat} out the receiving quaternion\n * @param {quat} a quaternion to normalize\n * @returns {quat} out\n * @function\n */\nexport const normalize = vec4.normalize;\n\n/**\n * Returns whether or not the quaternions have exactly the same elements in the same position (when compared with ===)\n *\n * @param {quat} a The first quaternion.\n * @param {quat} b The second quaternion.\n * @returns {Boolean} True if the vectors are equal, false otherwise.\n */\nexport const exactEquals = vec4.exactEquals;\n\n/**\n * Returns whether or not the quaternions have approximately the same elements in the same position.\n *\n * @param {quat} a The first vector.\n * @param {quat} b The second vector.\n * @returns {Boolean} True if the vectors are equal, false otherwise.\n */\nexport const equals = vec4.equals;\n\n/**\n * Sets a quaternion to represent the shortest rotation from one\n * vector to another.\n *\n * Both vectors are assumed to be unit length.\n *\n * @param {quat} out the receiving quaternion.\n * @param {vec3} a the initial vector\n * @param {vec3} b the destination vector\n * @returns {quat} out\n */\nexport const rotationTo = (function() {\n let tmpvec3 = vec3.create();\n let xUnitVec3 = vec3.fromValues(1,0,0);\n let yUnitVec3 = vec3.fromValues(0,1,0);\n\n return function(out, a, b) {\n let dot = vec3.dot(a, b);\n if (dot < -0.999999) {\n vec3.cross(tmpvec3, xUnitVec3, a);\n if (vec3.len(tmpvec3) < 0.000001)\n vec3.cross(tmpvec3, yUnitVec3, a);\n vec3.normalize(tmpvec3, tmpvec3);\n setAxisAngle(out, tmpvec3, Math.PI);\n return out;\n } else if (dot > 0.999999) {\n out[0] = 0;\n out[1] = 0;\n out[2] = 0;\n out[3] = 1;\n return out;\n } else {\n vec3.cross(tmpvec3, a, b);\n out[0] = tmpvec3[0];\n out[1] = tmpvec3[1];\n out[2] = tmpvec3[2];\n out[3] = 1 + dot;\n return normalize(out, out);\n }\n };\n})();\n\n/**\n * Performs a spherical linear interpolation with two control points\n *\n * @param {quat} out the receiving quaternion\n * @param {quat} a the first operand\n * @param {quat} b the second operand\n * @param {quat} c the third operand\n * @param {quat} d the fourth operand\n * @param {Number} t interpolation amount\n * @returns {quat} out\n */\nexport const sqlerp = (function () {\n let temp1 = create();\n let temp2 = create();\n\n return function (out, a, b, c, d, t) {\n slerp(temp1, a, d, t);\n slerp(temp2, b, c, t);\n slerp(out, temp1, temp2, 2 * t * (1 - t));\n\n return out;\n };\n}());\n\n/**\n * Sets the specified quaternion with values corresponding to the given\n * axes. Each axis is a vec3 and is expected to be unit length and\n * perpendicular to all other specified axes.\n *\n * @param {vec3} view the vector representing the viewing direction\n * @param {vec3} right the vector representing the local \"right\" direction\n * @param {vec3} up the vector representing the local \"up\" direction\n * @returns {quat} out\n */\nexport const setAxes = (function() {\n let matr = mat3.create();\n\n return function(out, view, right, up) {\n matr[0] = right[0];\n matr[3] = right[1];\n matr[6] = right[2];\n\n matr[1] = up[0];\n matr[4] = up[1];\n matr[7] = up[2];\n\n matr[2] = -view[0];\n matr[5] = -view[1];\n matr[8] = -view[2];\n\n return normalize(out, fromMat3(out, matr));\n };\n})();\n\n\n\n//////////////////\n// WEBPACK FOOTER\n// ./node_modules/gl-matrix/src/gl-matrix/quat.js\n// module id = 23\n// module chunks = 0","/* Copyright (c) 2015, Brandon Jones, Colin MacKenzie IV.\n\nPermission is hereby granted, free of charge, to any person obtaining a copy\nof this software and associated documentation files (the \"Software\"), to deal\nin the Software without restriction, including without limitation the rights\nto use, copy, modify, merge, publish, distribute, sublicense, and/or sell\ncopies of the Software, and to permit persons to whom the Software is\nfurnished to do so, subject to the following conditions:\n\nThe above copyright notice and this permission notice shall be included in\nall copies or substantial portions of the Software.\n\nTHE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\nIMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\nFITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE\nAUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\nLIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,\nOUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN\nTHE SOFTWARE. */\n\nimport * as glMatrix from \"./common\";\n\n/**\n * 2 Dimensional Vector\n * @module vec2\n */\n\n/**\n * Creates a new, empty vec2\n *\n * @returns {vec2} a new 2D vector\n */\nexport function create() {\n let out = new glMatrix.ARRAY_TYPE(2);\n out[0] = 0;\n out[1] = 0;\n return out;\n}\n\n/**\n * Creates a new vec2 initialized with values from an existing vector\n *\n * @param {vec2} a vector to clone\n * @returns {vec2} a new 2D vector\n */\nexport function clone(a) {\n let out = new glMatrix.ARRAY_TYPE(2);\n out[0] = a[0];\n out[1] = a[1];\n return out;\n}\n\n/**\n * Creates a new vec2 initialized with the given values\n *\n * @param {Number} x X component\n * @param {Number} y Y component\n * @returns {vec2} a new 2D vector\n */\nexport function fromValues(x, y) {\n let out = new glMatrix.ARRAY_TYPE(2);\n out[0] = x;\n out[1] = y;\n return out;\n}\n\n/**\n * Copy the values from one vec2 to another\n *\n * @param {vec2} out the receiving vector\n * @param {vec2} a the source vector\n * @returns {vec2} out\n */\nexport function copy(out, a) {\n out[0] = a[0];\n out[1] = a[1];\n return out;\n}\n\n/**\n * Set the components of a vec2 to the given values\n *\n * @param {vec2} out the receiving vector\n * @param {Number} x X component\n * @param {Number} y Y component\n * @returns {vec2} out\n */\nexport function set(out, x, y) {\n out[0] = x;\n out[1] = y;\n return out;\n}\n\n/**\n * Adds two vec2's\n *\n * @param {vec2} out the receiving vector\n * @param {vec2} a the first operand\n * @param {vec2} b the second operand\n * @returns {vec2} out\n */\nexport function add(out, a, b) {\n out[0] = a[0] + b[0];\n out[1] = a[1] + b[1];\n return out;\n}\n\n/**\n * Subtracts vector b from vector a\n *\n * @param {vec2} out the receiving vector\n * @param {vec2} a the first operand\n * @param {vec2} b the second operand\n * @returns {vec2} out\n */\nexport function subtract(out, a, b) {\n out[0] = a[0] - b[0];\n out[1] = a[1] - b[1];\n return out;\n}\n\n/**\n * Multiplies two vec2's\n *\n * @param {vec2} out the receiving vector\n * @param {vec2} a the first operand\n * @param {vec2} b the second operand\n * @returns {vec2} out\n */\nexport function multiply(out, a, b) {\n out[0] = a[0] * b[0];\n out[1] = a[1] * b[1];\n return out;\n};\n\n/**\n * Divides two vec2's\n *\n * @param {vec2} out the receiving vector\n * @param {vec2} a the first operand\n * @param {vec2} b the second operand\n * @returns {vec2} out\n */\nexport function divide(out, a, b) {\n out[0] = a[0] / b[0];\n out[1] = a[1] / b[1];\n return out;\n};\n\n/**\n * Math.ceil the components of a vec2\n *\n * @param {vec2} out the receiving vector\n * @param {vec2} a vector to ceil\n * @returns {vec2} out\n */\nexport function ceil(out, a) {\n out[0] = Math.ceil(a[0]);\n out[1] = Math.ceil(a[1]);\n return out;\n};\n\n/**\n * Math.floor the components of a vec2\n *\n * @param {vec2} out the receiving vector\n * @param {vec2} a vector to floor\n * @returns {vec2} out\n */\nexport function floor(out, a) {\n out[0] = Math.floor(a[0]);\n out[1] = Math.floor(a[1]);\n return out;\n};\n\n/**\n * Returns the minimum of two vec2's\n *\n * @param {vec2} out the receiving vector\n * @param {vec2} a the first operand\n * @param {vec2} b the second operand\n * @returns {vec2} out\n */\nexport function min(out, a, b) {\n out[0] = Math.min(a[0], b[0]);\n out[1] = Math.min(a[1], b[1]);\n return out;\n};\n\n/**\n * Returns the maximum of two vec2's\n *\n * @param {vec2} out the receiving vector\n * @param {vec2} a the first operand\n * @param {vec2} b the second operand\n * @returns {vec2} out\n */\nexport function max(out, a, b) {\n out[0] = Math.max(a[0], b[0]);\n out[1] = Math.max(a[1], b[1]);\n return out;\n};\n\n/**\n * Math.round the components of a vec2\n *\n * @param {vec2} out the receiving vector\n * @param {vec2} a vector to round\n * @returns {vec2} out\n */\nexport function round (out, a) {\n out[0] = Math.round(a[0]);\n out[1] = Math.round(a[1]);\n return out;\n};\n\n/**\n * Scales a vec2 by a scalar number\n *\n * @param {vec2} out the receiving vector\n * @param {vec2} a the vector to scale\n * @param {Number} b amount to scale the vector by\n * @returns {vec2} out\n */\nexport function scale(out, a, b) {\n out[0] = a[0] * b;\n out[1] = a[1] * b;\n return out;\n};\n\n/**\n * Adds two vec2's after scaling the second operand by a scalar value\n *\n * @param {vec2} out the receiving vector\n * @param {vec2} a the first operand\n * @param {vec2} b the second operand\n * @param {Number} scale the amount to scale b by before adding\n * @returns {vec2} out\n */\nexport function scaleAndAdd(out, a, b, scale) {\n out[0] = a[0] + (b[0] * scale);\n out[1] = a[1] + (b[1] * scale);\n return out;\n};\n\n/**\n * Calculates the euclidian distance between two vec2's\n *\n * @param {vec2} a the first operand\n * @param {vec2} b the second operand\n * @returns {Number} distance between a and b\n */\nexport function distance(a, b) {\n var x = b[0] - a[0],\n y = b[1] - a[1];\n return Math.sqrt(x*x + y*y);\n};\n\n/**\n * Calculates the squared euclidian distance between two vec2's\n *\n * @param {vec2} a the first operand\n * @param {vec2} b the second operand\n * @returns {Number} squared distance between a and b\n */\nexport function squaredDistance(a, b) {\n var x = b[0] - a[0],\n y = b[1] - a[1];\n return x*x + y*y;\n};\n\n/**\n * Calculates the length of a vec2\n *\n * @param {vec2} a vector to calculate length of\n * @returns {Number} length of a\n */\nexport function length(a) {\n var x = a[0],\n y = a[1];\n return Math.sqrt(x*x + y*y);\n};\n\n/**\n * Calculates the squared length of a vec2\n *\n * @param {vec2} a vector to calculate squared length of\n * @returns {Number} squared length of a\n */\nexport function squaredLength (a) {\n var x = a[0],\n y = a[1];\n return x*x + y*y;\n};\n\n/**\n * Negates the components of a vec2\n *\n * @param {vec2} out the receiving vector\n * @param {vec2} a vector to negate\n * @returns {vec2} out\n */\nexport function negate(out, a) {\n out[0] = -a[0];\n out[1] = -a[1];\n return out;\n};\n\n/**\n * Returns the inverse of the components of a vec2\n *\n * @param {vec2} out the receiving vector\n * @param {vec2} a vector to invert\n * @returns {vec2} out\n */\nexport function inverse(out, a) {\n out[0] = 1.0 / a[0];\n out[1] = 1.0 / a[1];\n return out;\n};\n\n/**\n * Normalize a vec2\n *\n * @param {vec2} out the receiving vector\n * @param {vec2} a vector to normalize\n * @returns {vec2} out\n */\nexport function normalize(out, a) {\n var x = a[0],\n y = a[1];\n var len = x*x + y*y;\n if (len > 0) {\n //TODO: evaluate use of glm_invsqrt here?\n len = 1 / Math.sqrt(len);\n out[0] = a[0] * len;\n out[1] = a[1] * len;\n }\n return out;\n};\n\n/**\n * Calculates the dot product of two vec2's\n *\n * @param {vec2} a the first operand\n * @param {vec2} b the second operand\n * @returns {Number} dot product of a and b\n */\nexport function dot(a, b) {\n return a[0] * b[0] + a[1] * b[1];\n};\n\n/**\n * Computes the cross product of two vec2's\n * Note that the cross product must by definition produce a 3D vector\n *\n * @param {vec3} out the receiving vector\n * @param {vec2} a the first operand\n * @param {vec2} b the second operand\n * @returns {vec3} out\n */\nexport function cross(out, a, b) {\n var z = a[0] * b[1] - a[1] * b[0];\n out[0] = out[1] = 0;\n out[2] = z;\n return out;\n};\n\n/**\n * Performs a linear interpolation between two vec2's\n *\n * @param {vec2} out the receiving vector\n * @param {vec2} a the first operand\n * @param {vec2} b the second operand\n * @param {Number} t interpolation amount between the two inputs\n * @returns {vec2} out\n */\nexport function lerp(out, a, b, t) {\n var ax = a[0],\n ay = a[1];\n out[0] = ax + t * (b[0] - ax);\n out[1] = ay + t * (b[1] - ay);\n return out;\n};\n\n/**\n * Generates a random vector with the given scale\n *\n * @param {vec2} out the receiving vector\n * @param {Number} [scale] Length of the resulting vector. If ommitted, a unit vector will be returned\n * @returns {vec2} out\n */\nexport function random(out, scale) {\n scale = scale || 1.0;\n var r = glMatrix.RANDOM() * 2.0 * Math.PI;\n out[0] = Math.cos(r) * scale;\n out[1] = Math.sin(r) * scale;\n return out;\n};\n\n/**\n * Transforms the vec2 with a mat2\n *\n * @param {vec2} out the receiving vector\n * @param {vec2} a the vector to transform\n * @param {mat2} m matrix to transform with\n * @returns {vec2} out\n */\nexport function transformMat2(out, a, m) {\n var x = a[0],\n y = a[1];\n out[0] = m[0] * x + m[2] * y;\n out[1] = m[1] * x + m[3] * y;\n return out;\n};\n\n/**\n * Transforms the vec2 with a mat2d\n *\n * @param {vec2} out the receiving vector\n * @param {vec2} a the vector to transform\n * @param {mat2d} m matrix to transform with\n * @returns {vec2} out\n */\nexport function transformMat2d(out, a, m) {\n var x = a[0],\n y = a[1];\n out[0] = m[0] * x + m[2] * y + m[4];\n out[1] = m[1] * x + m[3] * y + m[5];\n return out;\n};\n\n/**\n * Transforms the vec2 with a mat3\n * 3rd vector component is implicitly '1'\n *\n * @param {vec2} out the receiving vector\n * @param {vec2} a the vector to transform\n * @param {mat3} m matrix to transform with\n * @returns {vec2} out\n */\nexport function transformMat3(out, a, m) {\n var x = a[0],\n y = a[1];\n out[0] = m[0] * x + m[3] * y + m[6];\n out[1] = m[1] * x + m[4] * y + m[7];\n return out;\n};\n\n/**\n * Transforms the vec2 with a mat4\n * 3rd vector component is implicitly '0'\n * 4th vector component is implicitly '1'\n *\n * @param {vec2} out the receiving vector\n * @param {vec2} a the vector to transform\n * @param {mat4} m matrix to transform with\n * @returns {vec2} out\n */\nexport function transformMat4(out, a, m) {\n let x = a[0];\n let y = a[1];\n out[0] = m[0] * x + m[4] * y + m[12];\n out[1] = m[1] * x + m[5] * y + m[13];\n return out;\n}\n\n/**\n * Returns a string representation of a vector\n *\n * @param {vec2} a vector to represent as a string\n * @returns {String} string representation of the vector\n */\nexport function str(a) {\n return 'vec2(' + a[0] + ', ' + a[1] + ')';\n}\n\n/**\n * Returns whether or not the vectors exactly have the same elements in the same position (when compared with ===)\n *\n * @param {vec2} a The first vector.\n * @param {vec2} b The second vector.\n * @returns {Boolean} True if the vectors are equal, false otherwise.\n */\nexport function exactEquals(a, b) {\n return a[0] === b[0] && a[1] === b[1];\n}\n\n/**\n * Returns whether or not the vectors have approximately the same elements in the same position.\n *\n * @param {vec2} a The first vector.\n * @param {vec2} b The second vector.\n * @returns {Boolean} True if the vectors are equal, false otherwise.\n */\nexport function equals(a, b) {\n let a0 = a[0], a1 = a[1];\n let b0 = b[0], b1 = b[1];\n return (Math.abs(a0 - b0) <= glMatrix.EPSILON*Math.max(1.0, Math.abs(a0), Math.abs(b0)) &&\n Math.abs(a1 - b1) <= glMatrix.EPSILON*Math.max(1.0, Math.abs(a1), Math.abs(b1)));\n}\n\n/**\n * Alias for {@link vec2.length}\n * @function\n */\nexport const len = length;\n\n/**\n * Alias for {@link vec2.subtract}\n * @function\n */\nexport const sub = subtract;\n\n/**\n * Alias for {@link vec2.multiply}\n * @function\n */\nexport const mul = multiply;\n\n/**\n * Alias for {@link vec2.divide}\n * @function\n */\nexport const div = divide;\n\n/**\n * Alias for {@link vec2.distance}\n * @function\n */\nexport const dist = distance;\n\n/**\n * Alias for {@link vec2.squaredDistance}\n * @function\n */\nexport const sqrDist = squaredDistance;\n\n/**\n * Alias for {@link vec2.squaredLength}\n * @function\n */\nexport const sqrLen = squaredLength;\n\n/**\n * Perform some operation over an array of vec2s.\n *\n * @param {Array} a the array of vectors to iterate over\n * @param {Number} stride Number of elements between the start of each vec2. If 0 assumes tightly packed\n * @param {Number} offset Number of elements to skip at the beginning of the array\n * @param {Number} count Number of vec2s to iterate over. If 0 iterates over entire array\n * @param {Function} fn Function to call for each vector in the array\n * @param {Object} [arg] additional argument to pass to fn\n * @returns {Array} a\n * @function\n */\nexport const forEach = (function() {\n let vec = create();\n\n return function(a, stride, offset, count, fn, arg) {\n let i, l;\n if(!stride) {\n stride = 2;\n }\n\n if(!offset) {\n offset = 0;\n }\n\n if(count) {\n l = Math.min((count * stride) + offset, a.length);\n } else {\n l = a.length;\n }\n\n for(i = offset; i < l; i += stride) {\n vec[0] = a[i]; vec[1] = a[i+1];\n fn(vec, vec, arg);\n a[i] = vec[0]; a[i+1] = vec[1];\n }\n\n return a;\n };\n})();\n\n\n\n//////////////////\n// WEBPACK FOOTER\n// ./node_modules/gl-matrix/src/gl-matrix/vec2.js\n// module id = 24\n// module chunks = 0","// stats.js - http://github.com/mrdoob/stats.js\nvar Stats=function(){var l=Date.now(),m=l,g=0,n=Infinity,o=0,h=0,p=Infinity,q=0,r=0,s=0,f=document.createElement(\"div\");f.id=\"stats\";f.addEventListener(\"mousedown\",function(b){b.preventDefault();t(++s%2)},!1);f.style.cssText=\"width:80px;opacity:0.9;cursor:pointer\";var a=document.createElement(\"div\");a.id=\"fps\";a.style.cssText=\"padding:0 0 3px 3px;text-align:left;background-color:#002\";f.appendChild(a);var i=document.createElement(\"div\");i.id=\"fpsText\";i.style.cssText=\"color:#0ff;font-family:Helvetica,Arial,sans-serif;font-size:9px;font-weight:bold;line-height:15px\";\ni.innerHTML=\"FPS\";a.appendChild(i);var c=document.createElement(\"div\");c.id=\"fpsGraph\";c.style.cssText=\"position:relative;width:74px;height:30px;background-color:#0ff\";for(a.appendChild(c);74>c.children.length;){var j=document.createElement(\"span\");j.style.cssText=\"width:1px;height:30px;float:left;background-color:#113\";c.appendChild(j)}var d=document.createElement(\"div\");d.id=\"ms\";d.style.cssText=\"padding:0 0 3px 3px;text-align:left;background-color:#020;display:none\";f.appendChild(d);var k=document.createElement(\"div\");\nk.id=\"msText\";k.style.cssText=\"color:#0f0;font-family:Helvetica,Arial,sans-serif;font-size:9px;font-weight:bold;line-height:15px\";k.innerHTML=\"MS\";d.appendChild(k);var e=document.createElement(\"div\");e.id=\"msGraph\";e.style.cssText=\"position:relative;width:74px;height:30px;background-color:#0f0\";for(d.appendChild(e);74>e.children.length;)j=document.createElement(\"span\"),j.style.cssText=\"width:1px;height:30px;float:left;background-color:#131\",e.appendChild(j);var t=function(b){s=b;switch(s){case 0:a.style.display=\n\"block\";d.style.display=\"none\";break;case 1:a.style.display=\"none\",d.style.display=\"block\"}};return{REVISION:12,domElement:f,setMode:t,begin:function(){l=Date.now()},end:function(){var b=Date.now();g=b-l;n=Math.min(n,g);o=Math.max(o,g);k.textContent=g+\" MS (\"+n+\"-\"+o+\")\";var a=Math.min(30,30-30*(g/200));e.appendChild(e.firstChild).style.height=a+\"px\";r++;b>m+1E3&&(h=Math.round(1E3*r/(b-m)),p=Math.min(p,h),q=Math.max(q,h),i.textContent=h+\" FPS (\"+p+\"-\"+q+\")\",a=Math.min(30,30-30*(h/100)),c.appendChild(c.firstChild).style.height=\na+\"px\",m=b,r=0);return b},update:function(){l=this.end()}}};\"object\"===typeof module&&(module.exports=Stats);\n\n\n\n//////////////////\n// WEBPACK FOOTER\n// ./node_modules/stats-js/build/stats.min.js\n// module id = 25\n// module chunks = 0","module.exports = require('./vendor/dat.gui')\nmodule.exports.color = require('./vendor/dat.color')\n\n\n//////////////////\n// WEBPACK FOOTER\n// ./node_modules/dat-gui/index.js\n// module id = 26\n// module chunks = 0","/**\n * dat-gui JavaScript Controller Library\n * http://code.google.com/p/dat-gui\n *\n * Copyright 2011 Data Arts Team, Google Creative Lab\n *\n * Licensed under the Apache License, Version 2.0 (the \"License\");\n * you may not use this file except in compliance with the License.\n * You may obtain a copy of the License at\n *\n * http://www.apache.org/licenses/LICENSE-2.0\n */\n\n/** @namespace */\nvar dat = module.exports = dat || {};\n\n/** @namespace */\ndat.gui = dat.gui || {};\n\n/** @namespace */\ndat.utils = dat.utils || {};\n\n/** @namespace */\ndat.controllers = dat.controllers || {};\n\n/** @namespace */\ndat.dom = dat.dom || {};\n\n/** @namespace */\ndat.color = dat.color || {};\n\ndat.utils.css = (function () {\n return {\n load: function (url, doc) {\n doc = doc || document;\n var link = doc.createElement('link');\n link.type = 'text/css';\n link.rel = 'stylesheet';\n link.href = url;\n doc.getElementsByTagName('head')[0].appendChild(link);\n },\n inject: function(css, doc) {\n doc = doc || document;\n var injected = document.createElement('style');\n injected.type = 'text/css';\n injected.innerHTML = css;\n doc.getElementsByTagName('head')[0].appendChild(injected);\n }\n }\n})();\n\n\ndat.utils.common = (function () {\n \n var ARR_EACH = Array.prototype.forEach;\n var ARR_SLICE = Array.prototype.slice;\n\n /**\n * Band-aid methods for things that should be a lot easier in JavaScript.\n * Implementation and structure inspired by underscore.js\n * http://documentcloud.github.com/underscore/\n */\n\n return { \n \n BREAK: {},\n \n extend: function(target) {\n \n this.each(ARR_SLICE.call(arguments, 1), function(obj) {\n \n for (var key in obj)\n if (!this.isUndefined(obj[key])) \n target[key] = obj[key];\n \n }, this);\n \n return target;\n \n },\n \n defaults: function(target) {\n \n this.each(ARR_SLICE.call(arguments, 1), function(obj) {\n \n for (var key in obj)\n if (this.isUndefined(target[key])) \n target[key] = obj[key];\n \n }, this);\n \n return target;\n \n },\n \n compose: function() {\n var toCall = ARR_SLICE.call(arguments);\n return function() {\n var args = ARR_SLICE.call(arguments);\n for (var i = toCall.length -1; i >= 0; i--) {\n args = [toCall[i].apply(this, args)];\n }\n return args[0];\n }\n },\n \n each: function(obj, itr, scope) {\n\n \n if (ARR_EACH && obj.forEach === ARR_EACH) { \n \n obj.forEach(itr, scope);\n \n } else if (obj.length === obj.length + 0) { // Is number but not NaN\n \n for (var key = 0, l = obj.length; key < l; key++)\n if (key in obj && itr.call(scope, obj[key], key) === this.BREAK) \n return;\n \n } else {\n\n for (var key in obj) \n if (itr.call(scope, obj[key], key) === this.BREAK)\n return;\n \n }\n \n },\n \n defer: function(fnc) {\n setTimeout(fnc, 0);\n },\n \n toArray: function(obj) {\n if (obj.toArray) return obj.toArray();\n return ARR_SLICE.call(obj);\n },\n\n isUndefined: function(obj) {\n return obj === undefined;\n },\n \n isNull: function(obj) {\n return obj === null;\n },\n \n isNaN: function(obj) {\n return obj !== obj;\n },\n \n isArray: Array.isArray || function(obj) {\n return obj.constructor === Array;\n },\n \n isObject: function(obj) {\n return obj === Object(obj);\n },\n \n isNumber: function(obj) {\n return obj === obj+0;\n },\n \n isString: function(obj) {\n return obj === obj+'';\n },\n \n isBoolean: function(obj) {\n return obj === false || obj === true;\n },\n \n isFunction: function(obj) {\n return Object.prototype.toString.call(obj) === '[object Function]';\n }\n \n };\n \n})();\n\n\ndat.controllers.Controller = (function (common) {\n\n /**\n * @class An \"abstract\" class that represents a given property of an object.\n *\n * @param {Object} object The object to be manipulated\n * @param {string} property The name of the property to be manipulated\n *\n * @member dat.controllers\n */\n var Controller = function(object, property) {\n\n this.initialValue = object[property];\n\n /**\n * Those who extend this class will put their DOM elements in here.\n * @type {DOMElement}\n */\n this.domElement = document.createElement('div');\n\n /**\n * The object to manipulate\n * @type {Object}\n */\n this.object = object;\n\n /**\n * The name of the property to manipulate\n * @type {String}\n */\n this.property = property;\n\n /**\n * The function to be called on change.\n * @type {Function}\n * @ignore\n */\n this.__onChange = undefined;\n\n /**\n * The function to be called on finishing change.\n * @type {Function}\n * @ignore\n */\n this.__onFinishChange = undefined;\n\n };\n\n common.extend(\n\n Controller.prototype,\n\n /** @lends dat.controllers.Controller.prototype */\n {\n\n /**\n * Specify that a function fire every time someone changes the value with\n * this Controller.\n *\n * @param {Function} fnc This function will be called whenever the value\n * is modified via this Controller.\n * @returns {dat.controllers.Controller} this\n */\n onChange: function(fnc) {\n this.__onChange = fnc;\n return this;\n },\n\n /**\n * Specify that a function fire every time someone \"finishes\" changing\n * the value wih this Controller. Useful for values that change\n * incrementally like numbers or strings.\n *\n * @param {Function} fnc This function will be called whenever\n * someone \"finishes\" changing the value via this Controller.\n * @returns {dat.controllers.Controller} this\n */\n onFinishChange: function(fnc) {\n this.__onFinishChange = fnc;\n return this;\n },\n\n /**\n * Change the value of object[property]\n *\n * @param {Object} newValue The new value of object[property]\n */\n setValue: function(newValue) {\n this.object[this.property] = newValue;\n if (this.__onChange) {\n this.__onChange.call(this, newValue);\n }\n this.updateDisplay();\n return this;\n },\n\n /**\n * Gets the value of object[property]\n *\n * @returns {Object} The current value of object[property]\n */\n getValue: function() {\n return this.object[this.property];\n },\n\n /**\n * Refreshes the visual display of a Controller in order to keep sync\n * with the object's current value.\n * @returns {dat.controllers.Controller} this\n */\n updateDisplay: function() {\n return this;\n },\n\n /**\n * @returns {Boolean} true if the value has deviated from initialValue\n */\n isModified: function() {\n return this.initialValue !== this.getValue()\n }\n\n }\n\n );\n\n return Controller;\n\n\n})(dat.utils.common);\n\n\ndat.dom.dom = (function (common) {\n\n var EVENT_MAP = {\n 'HTMLEvents': ['change'],\n 'MouseEvents': ['click','mousemove','mousedown','mouseup', 'mouseover'],\n 'KeyboardEvents': ['keydown']\n };\n\n var EVENT_MAP_INV = {};\n common.each(EVENT_MAP, function(v, k) {\n common.each(v, function(e) {\n EVENT_MAP_INV[e] = k;\n });\n });\n\n var CSS_VALUE_PIXELS = /(\\d+(\\.\\d+)?)px/;\n\n function cssValueToPixels(val) {\n\n if (val === '0' || common.isUndefined(val)) return 0;\n\n var match = val.match(CSS_VALUE_PIXELS);\n\n if (!common.isNull(match)) {\n return parseFloat(match[1]);\n }\n\n // TODO ...ems? %?\n\n return 0;\n\n }\n\n /**\n * @namespace\n * @member dat.dom\n */\n var dom = {\n\n /**\n * \n * @param elem\n * @param selectable\n */\n makeSelectable: function(elem, selectable) {\n\n if (elem === undefined || elem.style === undefined) return;\n\n elem.onselectstart = selectable ? function() {\n return false;\n } : function() {\n };\n\n elem.style.MozUserSelect = selectable ? 'auto' : 'none';\n elem.style.KhtmlUserSelect = selectable ? 'auto' : 'none';\n elem.unselectable = selectable ? 'on' : 'off';\n\n },\n\n /**\n *\n * @param elem\n * @param horizontal\n * @param vertical\n */\n makeFullscreen: function(elem, horizontal, vertical) {\n\n if (common.isUndefined(horizontal)) horizontal = true;\n if (common.isUndefined(vertical)) vertical = true;\n\n elem.style.position = 'absolute';\n\n if (horizontal) {\n elem.style.left = 0;\n elem.style.right = 0;\n }\n if (vertical) {\n elem.style.top = 0;\n elem.style.bottom = 0;\n }\n\n },\n\n /**\n *\n * @param elem\n * @param eventType\n * @param params\n */\n fakeEvent: function(elem, eventType, params, aux) {\n params = params || {};\n var className = EVENT_MAP_INV[eventType];\n if (!className) {\n throw new Error('Event type ' + eventType + ' not supported.');\n }\n var evt = document.createEvent(className);\n switch (className) {\n case 'MouseEvents':\n var clientX = params.x || params.clientX || 0;\n var clientY = params.y || params.clientY || 0;\n evt.initMouseEvent(eventType, params.bubbles || false,\n params.cancelable || true, window, params.clickCount || 1,\n 0, //screen X\n 0, //screen Y\n clientX, //client X\n clientY, //client Y\n false, false, false, false, 0, null);\n break;\n case 'KeyboardEvents':\n var init = evt.initKeyboardEvent || evt.initKeyEvent; // webkit || moz\n common.defaults(params, {\n cancelable: true,\n ctrlKey: false,\n altKey: false,\n shiftKey: false,\n metaKey: false,\n keyCode: undefined,\n charCode: undefined\n });\n init(eventType, params.bubbles || false,\n params.cancelable, window,\n params.ctrlKey, params.altKey,\n params.shiftKey, params.metaKey,\n params.keyCode, params.charCode);\n break;\n default:\n evt.initEvent(eventType, params.bubbles || false,\n params.cancelable || true);\n break;\n }\n common.defaults(evt, aux);\n elem.dispatchEvent(evt);\n },\n\n /**\n *\n * @param elem\n * @param event\n * @param func\n * @param bool\n */\n bind: function(elem, event, func, bool) {\n bool = bool || false;\n if (elem.addEventListener)\n elem.addEventListener(event, func, bool);\n else if (elem.attachEvent)\n elem.attachEvent('on' + event, func);\n return dom;\n },\n\n /**\n *\n * @param elem\n * @param event\n * @param func\n * @param bool\n */\n unbind: function(elem, event, func, bool) {\n bool = bool || false;\n if (elem.removeEventListener)\n elem.removeEventListener(event, func, bool);\n else if (elem.detachEvent)\n elem.detachEvent('on' + event, func);\n return dom;\n },\n\n /**\n *\n * @param elem\n * @param className\n */\n addClass: function(elem, className) {\n if (elem.className === undefined) {\n elem.className = className;\n } else if (elem.className !== className) {\n var classes = elem.className.split(/ +/);\n if (classes.indexOf(className) == -1) {\n classes.push(className);\n elem.className = classes.join(' ').replace(/^\\s+/, '').replace(/\\s+$/, '');\n }\n }\n return dom;\n },\n\n /**\n *\n * @param elem\n * @param className\n */\n removeClass: function(elem, className) {\n if (className) {\n if (elem.className === undefined) {\n // elem.className = className;\n } else if (elem.className === className) {\n elem.removeAttribute('class');\n } else {\n var classes = elem.className.split(/ +/);\n var index = classes.indexOf(className);\n if (index != -1) {\n classes.splice(index, 1);\n elem.className = classes.join(' ');\n }\n }\n } else {\n elem.className = undefined;\n }\n return dom;\n },\n\n hasClass: function(elem, className) {\n return new RegExp('(?:^|\\\\s+)' + className + '(?:\\\\s+|$)').test(elem.className) || false;\n },\n\n /**\n *\n * @param elem\n */\n getWidth: function(elem) {\n\n var style = getComputedStyle(elem);\n\n return cssValueToPixels(style['border-left-width']) +\n cssValueToPixels(style['border-right-width']) +\n cssValueToPixels(style['padding-left']) +\n cssValueToPixels(style['padding-right']) +\n cssValueToPixels(style['width']);\n },\n\n /**\n *\n * @param elem\n */\n getHeight: function(elem) {\n\n var style = getComputedStyle(elem);\n\n return cssValueToPixels(style['border-top-width']) +\n cssValueToPixels(style['border-bottom-width']) +\n cssValueToPixels(style['padding-top']) +\n cssValueToPixels(style['padding-bottom']) +\n cssValueToPixels(style['height']);\n },\n\n /**\n *\n * @param elem\n */\n getOffset: function(elem) {\n var offset = {left: 0, top:0};\n if (elem.offsetParent) {\n do {\n offset.left += elem.offsetLeft;\n offset.top += elem.offsetTop;\n } while (elem = elem.offsetParent);\n }\n return offset;\n },\n\n // http://stackoverflow.com/posts/2684561/revisions\n /**\n * \n * @param elem\n */\n isActive: function(elem) {\n return elem === document.activeElement && ( elem.type || elem.href );\n }\n\n };\n\n return dom;\n\n})(dat.utils.common);\n\n\ndat.controllers.OptionController = (function (Controller, dom, common) {\n\n /**\n * @class Provides a select input to alter the property of an object, using a\n * list of accepted values.\n *\n * @extends dat.controllers.Controller\n *\n * @param {Object} object The object to be manipulated\n * @param {string} property The name of the property to be manipulated\n * @param {Object|string[]} options A map of labels to acceptable values, or\n * a list of acceptable string values.\n *\n * @member dat.controllers\n */\n var OptionController = function(object, property, options) {\n\n OptionController.superclass.call(this, object, property);\n\n var _this = this;\n\n /**\n * The drop down menu\n * @ignore\n */\n this.__select = document.createElement('select');\n\n if (common.isArray(options)) {\n var map = {};\n common.each(options, function(element) {\n map[element] = element;\n });\n options = map;\n }\n\n common.each(options, function(value, key) {\n\n var opt = document.createElement('option');\n opt.innerHTML = key;\n opt.setAttribute('value', value);\n _this.__select.appendChild(opt);\n\n });\n\n // Acknowledge original value\n this.updateDisplay();\n\n dom.bind(this.__select, 'change', function() {\n var desiredValue = this.options[this.selectedIndex].value;\n _this.setValue(desiredValue);\n });\n\n this.domElement.appendChild(this.__select);\n\n };\n\n OptionController.superclass = Controller;\n\n common.extend(\n\n OptionController.prototype,\n Controller.prototype,\n\n {\n\n setValue: function(v) {\n var toReturn = OptionController.superclass.prototype.setValue.call(this, v);\n if (this.__onFinishChange) {\n this.__onFinishChange.call(this, this.getValue());\n }\n return toReturn;\n },\n\n updateDisplay: function() {\n this.__select.value = this.getValue();\n return OptionController.superclass.prototype.updateDisplay.call(this);\n }\n\n }\n\n );\n\n return OptionController;\n\n})(dat.controllers.Controller,\ndat.dom.dom,\ndat.utils.common);\n\n\ndat.controllers.NumberController = (function (Controller, common) {\n\n /**\n * @class Represents a given property of an object that is a number.\n *\n * @extends dat.controllers.Controller\n *\n * @param {Object} object The object to be manipulated\n * @param {string} property The name of the property to be manipulated\n * @param {Object} [params] Optional parameters\n * @param {Number} [params.min] Minimum allowed value\n * @param {Number} [params.max] Maximum allowed value\n * @param {Number} [params.step] Increment by which to change value\n *\n * @member dat.controllers\n */\n var NumberController = function(object, property, params) {\n\n NumberController.superclass.call(this, object, property);\n\n params = params || {};\n\n this.__min = params.min;\n this.__max = params.max;\n this.__step = params.step;\n\n if (common.isUndefined(this.__step)) {\n\n if (this.initialValue == 0) {\n this.__impliedStep = 1; // What are we, psychics?\n } else {\n // Hey Doug, check this out.\n this.__impliedStep = Math.pow(10, Math.floor(Math.log(this.initialValue)/Math.LN10))/10;\n }\n\n } else {\n\n this.__impliedStep = this.__step;\n\n }\n\n this.__precision = numDecimals(this.__impliedStep);\n\n\n };\n\n NumberController.superclass = Controller;\n\n common.extend(\n\n NumberController.prototype,\n Controller.prototype,\n\n /** @lends dat.controllers.NumberController.prototype */\n {\n\n setValue: function(v) {\n\n if (this.__min !== undefined && v < this.__min) {\n v = this.__min;\n } else if (this.__max !== undefined && v > this.__max) {\n v = this.__max;\n }\n\n if (this.__step !== undefined && v % this.__step != 0) {\n v = Math.round(v / this.__step) * this.__step;\n }\n\n return NumberController.superclass.prototype.setValue.call(this, v);\n\n },\n\n /**\n * Specify a minimum value for object[property].\n *\n * @param {Number} minValue The minimum value for\n * object[property]\n * @returns {dat.controllers.NumberController} this\n */\n min: function(v) {\n this.__min = v;\n return this;\n },\n\n /**\n * Specify a maximum value for object[property].\n *\n * @param {Number} maxValue The maximum value for\n * object[property]\n * @returns {dat.controllers.NumberController} this\n */\n max: function(v) {\n this.__max = v;\n return this;\n },\n\n /**\n * Specify a step value that dat.controllers.NumberController\n * increments by.\n *\n * @param {Number} stepValue The step value for\n * dat.controllers.NumberController\n * @default if minimum and maximum specified increment is 1% of the\n * difference otherwise stepValue is 1\n * @returns {dat.controllers.NumberController} this\n */\n step: function(v) {\n this.__step = v;\n return this;\n }\n\n }\n\n );\n\n function numDecimals(x) {\n x = x.toString();\n if (x.indexOf('.') > -1) {\n return x.length - x.indexOf('.') - 1;\n } else {\n return 0;\n }\n }\n\n return NumberController;\n\n})(dat.controllers.Controller,\ndat.utils.common);\n\n\ndat.controllers.NumberControllerBox = (function (NumberController, dom, common) {\n\n /**\n * @class Represents a given property of an object that is a number and\n * provides an input element with which to manipulate it.\n *\n * @extends dat.controllers.Controller\n * @extends dat.controllers.NumberController\n *\n * @param {Object} object The object to be manipulated\n * @param {string} property The name of the property to be manipulated\n * @param {Object} [params] Optional parameters\n * @param {Number} [params.min] Minimum allowed value\n * @param {Number} [params.max] Maximum allowed value\n * @param {Number} [params.step] Increment by which to change value\n *\n * @member dat.controllers\n */\n var NumberControllerBox = function(object, property, params) {\n\n this.__truncationSuspended = false;\n\n NumberControllerBox.superclass.call(this, object, property, params);\n\n var _this = this;\n\n /**\n * {Number} Previous mouse y position\n * @ignore\n */\n var prev_y;\n\n this.__input = document.createElement('input');\n this.__input.setAttribute('type', 'text');\n\n // Makes it so manually specified values are not truncated.\n\n dom.bind(this.__input, 'change', onChange);\n dom.bind(this.__input, 'blur', onBlur);\n dom.bind(this.__input, 'mousedown', onMouseDown);\n dom.bind(this.__input, 'keydown', function(e) {\n\n // When pressing entire, you can be as precise as you want.\n if (e.keyCode === 13) {\n _this.__truncationSuspended = true;\n this.blur();\n _this.__truncationSuspended = false;\n }\n\n });\n\n function onChange() {\n var attempted = parseFloat(_this.__input.value);\n if (!common.isNaN(attempted)) _this.setValue(attempted);\n }\n\n function onBlur() {\n onChange();\n if (_this.__onFinishChange) {\n _this.__onFinishChange.call(_this, _this.getValue());\n }\n }\n\n function onMouseDown(e) {\n dom.bind(window, 'mousemove', onMouseDrag);\n dom.bind(window, 'mouseup', onMouseUp);\n prev_y = e.clientY;\n }\n\n function onMouseDrag(e) {\n\n var diff = prev_y - e.clientY;\n _this.setValue(_this.getValue() + diff * _this.__impliedStep);\n\n prev_y = e.clientY;\n\n }\n\n function onMouseUp() {\n dom.unbind(window, 'mousemove', onMouseDrag);\n dom.unbind(window, 'mouseup', onMouseUp);\n }\n\n this.updateDisplay();\n\n this.domElement.appendChild(this.__input);\n\n };\n\n NumberControllerBox.superclass = NumberController;\n\n common.extend(\n\n NumberControllerBox.prototype,\n NumberController.prototype,\n\n {\n\n updateDisplay: function() {\n\n this.__input.value = this.__truncationSuspended ? this.getValue() : roundToDecimal(this.getValue(), this.__precision);\n return NumberControllerBox.superclass.prototype.updateDisplay.call(this);\n }\n\n }\n\n );\n\n function roundToDecimal(value, decimals) {\n var tenTo = Math.pow(10, decimals);\n return Math.round(value * tenTo) / tenTo;\n }\n\n return NumberControllerBox;\n\n})(dat.controllers.NumberController,\ndat.dom.dom,\ndat.utils.common);\n\n\ndat.controllers.NumberControllerSlider = (function (NumberController, dom, css, common, styleSheet) {\n\n /**\n * @class Represents a given property of an object that is a number, contains\n * a minimum and maximum, and provides a slider element with which to\n * manipulate it. It should be noted that the slider element is made up of\n * <div> tags, not the html5\n * <slider> element.\n *\n * @extends dat.controllers.Controller\n * @extends dat.controllers.NumberController\n * \n * @param {Object} object The object to be manipulated\n * @param {string} property The name of the property to be manipulated\n * @param {Number} minValue Minimum allowed value\n * @param {Number} maxValue Maximum allowed value\n * @param {Number} stepValue Increment by which to change value\n *\n * @member dat.controllers\n */\n var NumberControllerSlider = function(object, property, min, max, step) {\n\n NumberControllerSlider.superclass.call(this, object, property, { min: min, max: max, step: step });\n\n var _this = this;\n\n this.__background = document.createElement('div');\n this.__foreground = document.createElement('div');\n \n\n\n dom.bind(this.__background, 'mousedown', onMouseDown);\n \n dom.addClass(this.__background, 'slider');\n dom.addClass(this.__foreground, 'slider-fg');\n\n function onMouseDown(e) {\n\n dom.bind(window, 'mousemove', onMouseDrag);\n dom.bind(window, 'mouseup', onMouseUp);\n\n onMouseDrag(e);\n }\n\n function onMouseDrag(e) {\n\n e.preventDefault();\n\n var offset = dom.getOffset(_this.__background);\n var width = dom.getWidth(_this.__background);\n \n _this.setValue(\n map(e.clientX, offset.left, offset.left + width, _this.__min, _this.__max)\n );\n\n return false;\n\n }\n\n function onMouseUp() {\n dom.unbind(window, 'mousemove', onMouseDrag);\n dom.unbind(window, 'mouseup', onMouseUp);\n if (_this.__onFinishChange) {\n _this.__onFinishChange.call(_this, _this.getValue());\n }\n }\n\n this.updateDisplay();\n\n this.__background.appendChild(this.__foreground);\n this.domElement.appendChild(this.__background);\n\n };\n\n NumberControllerSlider.superclass = NumberController;\n\n /**\n * Injects default stylesheet for slider elements.\n */\n NumberControllerSlider.useDefaultStyles = function() {\n css.inject(styleSheet);\n };\n\n common.extend(\n\n NumberControllerSlider.prototype,\n NumberController.prototype,\n\n {\n\n updateDisplay: function() {\n var pct = (this.getValue() - this.__min)/(this.__max - this.__min);\n this.__foreground.style.width = pct*100+'%';\n return NumberControllerSlider.superclass.prototype.updateDisplay.call(this);\n }\n\n }\n\n\n\n );\n\n function map(v, i1, i2, o1, o2) {\n return o1 + (o2 - o1) * ((v - i1) / (i2 - i1));\n }\n\n return NumberControllerSlider;\n \n})(dat.controllers.NumberController,\ndat.dom.dom,\ndat.utils.css,\ndat.utils.common,\n\".slider {\\n box-shadow: inset 0 2px 4px rgba(0,0,0,0.15);\\n height: 1em;\\n border-radius: 1em;\\n background-color: #eee;\\n padding: 0 0.5em;\\n overflow: hidden;\\n}\\n\\n.slider-fg {\\n padding: 1px 0 2px 0;\\n background-color: #aaa;\\n height: 1em;\\n margin-left: -0.5em;\\n padding-right: 0.5em;\\n border-radius: 1em 0 0 1em;\\n}\\n\\n.slider-fg:after {\\n display: inline-block;\\n border-radius: 1em;\\n background-color: #fff;\\n border: 1px solid #aaa;\\n content: '';\\n float: right;\\n margin-right: -1em;\\n margin-top: -1px;\\n height: 0.9em;\\n width: 0.9em;\\n}\");\n\n\ndat.controllers.FunctionController = (function (Controller, dom, common) {\n\n /**\n * @class Provides a GUI interface to fire a specified method, a property of an object.\n *\n * @extends dat.controllers.Controller\n *\n * @param {Object} object The object to be manipulated\n * @param {string} property The name of the property to be manipulated\n *\n * @member dat.controllers\n */\n var FunctionController = function(object, property, text) {\n\n FunctionController.superclass.call(this, object, property);\n\n var _this = this;\n\n this.__button = document.createElement('div');\n this.__button.innerHTML = text === undefined ? 'Fire' : text;\n dom.bind(this.__button, 'click', function(e) {\n e.preventDefault();\n _this.fire();\n return false;\n });\n\n dom.addClass(this.__button, 'button');\n\n this.domElement.appendChild(this.__button);\n\n\n };\n\n FunctionController.superclass = Controller;\n\n common.extend(\n\n FunctionController.prototype,\n Controller.prototype,\n {\n \n fire: function() {\n if (this.__onChange) {\n this.__onChange.call(this);\n }\n if (this.__onFinishChange) {\n this.__onFinishChange.call(this, this.getValue());\n }\n this.getValue().call(this.object);\n }\n }\n\n );\n\n return FunctionController;\n\n})(dat.controllers.Controller,\ndat.dom.dom,\ndat.utils.common);\n\n\ndat.controllers.BooleanController = (function (Controller, dom, common) {\n\n /**\n * @class Provides a checkbox input to alter the boolean property of an object.\n * @extends dat.controllers.Controller\n *\n * @param {Object} object The object to be manipulated\n * @param {string} property The name of the property to be manipulated\n *\n * @member dat.controllers\n */\n var BooleanController = function(object, property) {\n\n BooleanController.superclass.call(this, object, property);\n\n var _this = this;\n this.__prev = this.getValue();\n\n this.__checkbox = document.createElement('input');\n this.__checkbox.setAttribute('type', 'checkbox');\n\n\n dom.bind(this.__checkbox, 'change', onChange, false);\n\n this.domElement.appendChild(this.__checkbox);\n\n // Match original value\n this.updateDisplay();\n\n function onChange() {\n _this.setValue(!_this.__prev);\n }\n\n };\n\n BooleanController.superclass = Controller;\n\n common.extend(\n\n BooleanController.prototype,\n Controller.prototype,\n\n {\n\n setValue: function(v) {\n var toReturn = BooleanController.superclass.prototype.setValue.call(this, v);\n if (this.__onFinishChange) {\n this.__onFinishChange.call(this, this.getValue());\n }\n this.__prev = this.getValue();\n return toReturn;\n },\n\n updateDisplay: function() {\n \n if (this.getValue() === true) {\n this.__checkbox.setAttribute('checked', 'checked');\n this.__checkbox.checked = true; \n } else {\n this.__checkbox.checked = false;\n }\n\n return BooleanController.superclass.prototype.updateDisplay.call(this);\n\n }\n\n\n }\n\n );\n\n return BooleanController;\n\n})(dat.controllers.Controller,\ndat.dom.dom,\ndat.utils.common);\n\n\ndat.color.toString = (function (common) {\n\n return function(color) {\n\n if (color.a == 1 || common.isUndefined(color.a)) {\n\n var s = color.hex.toString(16);\n while (s.length < 6) {\n s = '0' + s;\n }\n\n return '#' + s;\n\n } else {\n\n return 'rgba(' + Math.round(color.r) + ',' + Math.round(color.g) + ',' + Math.round(color.b) + ',' + color.a + ')';\n\n }\n\n }\n\n})(dat.utils.common);\n\n\ndat.color.interpret = (function (toString, common) {\n\n var result, toReturn;\n\n var interpret = function() {\n\n toReturn = false;\n\n var original = arguments.length > 1 ? common.toArray(arguments) : arguments[0];\n\n common.each(INTERPRETATIONS, function(family) {\n\n if (family.litmus(original)) {\n\n common.each(family.conversions, function(conversion, conversionName) {\n\n result = conversion.read(original);\n\n if (toReturn === false && result !== false) {\n toReturn = result;\n result.conversionName = conversionName;\n result.conversion = conversion;\n return common.BREAK;\n\n }\n\n });\n\n return common.BREAK;\n\n }\n\n });\n\n return toReturn;\n\n };\n\n var INTERPRETATIONS = [\n\n // Strings\n {\n\n litmus: common.isString,\n\n conversions: {\n\n THREE_CHAR_HEX: {\n\n read: function(original) {\n\n var test = original.match(/^#([A-F0-9])([A-F0-9])([A-F0-9])$/i);\n if (test === null) return false;\n\n return {\n space: 'HEX',\n hex: parseInt(\n '0x' +\n test[1].toString() + test[1].toString() +\n test[2].toString() + test[2].toString() +\n test[3].toString() + test[3].toString())\n };\n\n },\n\n write: toString\n\n },\n\n SIX_CHAR_HEX: {\n\n read: function(original) {\n\n var test = original.match(/^#([A-F0-9]{6})$/i);\n if (test === null) return false;\n\n return {\n space: 'HEX',\n hex: parseInt('0x' + test[1].toString())\n };\n\n },\n\n write: toString\n\n },\n\n CSS_RGB: {\n\n read: function(original) {\n\n var test = original.match(/^rgb\\(\\s*(.+)\\s*,\\s*(.+)\\s*,\\s*(.+)\\s*\\)/);\n if (test === null) return false;\n\n return {\n space: 'RGB',\n r: parseFloat(test[1]),\n g: parseFloat(test[2]),\n b: parseFloat(test[3])\n };\n\n },\n\n write: toString\n\n },\n\n CSS_RGBA: {\n\n read: function(original) {\n\n var test = original.match(/^rgba\\(\\s*(.+)\\s*,\\s*(.+)\\s*,\\s*(.+)\\s*\\,\\s*(.+)\\s*\\)/);\n if (test === null) return false;\n\n return {\n space: 'RGB',\n r: parseFloat(test[1]),\n g: parseFloat(test[2]),\n b: parseFloat(test[3]),\n a: parseFloat(test[4])\n };\n\n },\n\n write: toString\n\n }\n\n }\n\n },\n\n // Numbers\n {\n\n litmus: common.isNumber,\n\n conversions: {\n\n HEX: {\n read: function(original) {\n return {\n space: 'HEX',\n hex: original,\n conversionName: 'HEX'\n }\n },\n\n write: function(color) {\n return color.hex;\n }\n }\n\n }\n\n },\n\n // Arrays\n {\n\n litmus: common.isArray,\n\n conversions: {\n\n RGB_ARRAY: {\n read: function(original) {\n if (original.length != 3) return false;\n return {\n space: 'RGB',\n r: original[0],\n g: original[1],\n b: original[2]\n };\n },\n\n write: function(color) {\n return [color.r, color.g, color.b];\n }\n\n },\n\n RGBA_ARRAY: {\n read: function(original) {\n if (original.length != 4) return false;\n return {\n space: 'RGB',\n r: original[0],\n g: original[1],\n b: original[2],\n a: original[3]\n };\n },\n\n write: function(color) {\n return [color.r, color.g, color.b, color.a];\n }\n\n }\n\n }\n\n },\n\n // Objects\n {\n\n litmus: common.isObject,\n\n conversions: {\n\n RGBA_OBJ: {\n read: function(original) {\n if (common.isNumber(original.r) &&\n common.isNumber(original.g) &&\n common.isNumber(original.b) &&\n common.isNumber(original.a)) {\n return {\n space: 'RGB',\n r: original.r,\n g: original.g,\n b: original.b,\n a: original.a\n }\n }\n return false;\n },\n\n write: function(color) {\n return {\n r: color.r,\n g: color.g,\n b: color.b,\n a: color.a\n }\n }\n },\n\n RGB_OBJ: {\n read: function(original) {\n if (common.isNumber(original.r) &&\n common.isNumber(original.g) &&\n common.isNumber(original.b)) {\n return {\n space: 'RGB',\n r: original.r,\n g: original.g,\n b: original.b\n }\n }\n return false;\n },\n\n write: function(color) {\n return {\n r: color.r,\n g: color.g,\n b: color.b\n }\n }\n },\n\n HSVA_OBJ: {\n read: function(original) {\n if (common.isNumber(original.h) &&\n common.isNumber(original.s) &&\n common.isNumber(original.v) &&\n common.isNumber(original.a)) {\n return {\n space: 'HSV',\n h: original.h,\n s: original.s,\n v: original.v,\n a: original.a\n }\n }\n return false;\n },\n\n write: function(color) {\n return {\n h: color.h,\n s: color.s,\n v: color.v,\n a: color.a\n }\n }\n },\n\n HSV_OBJ: {\n read: function(original) {\n if (common.isNumber(original.h) &&\n common.isNumber(original.s) &&\n common.isNumber(original.v)) {\n return {\n space: 'HSV',\n h: original.h,\n s: original.s,\n v: original.v\n }\n }\n return false;\n },\n\n write: function(color) {\n return {\n h: color.h,\n s: color.s,\n v: color.v\n }\n }\n\n }\n\n }\n\n }\n\n\n ];\n\n return interpret;\n\n\n})(dat.color.toString,\ndat.utils.common);\n\n\ndat.GUI = dat.gui.GUI = (function (css, saveDialogueContents, styleSheet, controllerFactory, Controller, BooleanController, FunctionController, NumberControllerBox, NumberControllerSlider, OptionController, ColorController, requestAnimationFrame, CenteredDiv, dom, common) {\n\n css.inject(styleSheet);\n\n /** Outer-most className for GUI's */\n var CSS_NAMESPACE = 'dg';\n\n var HIDE_KEY_CODE = 72;\n\n /** The only value shared between the JS and SCSS. Use caution. */\n var CLOSE_BUTTON_HEIGHT = 20;\n\n var DEFAULT_DEFAULT_PRESET_NAME = 'Default';\n\n var SUPPORTS_LOCAL_STORAGE = (function() {\n try {\n return 'localStorage' in window && window['localStorage'] !== null;\n } catch (e) {\n return false;\n }\n })();\n\n var SAVE_DIALOGUE;\n\n /** Have we yet to create an autoPlace GUI? */\n var auto_place_virgin = true;\n\n /** Fixed position div that auto place GUI's go inside */\n var auto_place_container;\n\n /** Are we hiding the GUI's ? */\n var hide = false;\n\n /** GUI's which should be hidden */\n var hideable_guis = [];\n\n /**\n * A lightweight controller library for JavaScript. It allows you to easily\n * manipulate variables and fire functions on the fly.\n * @class\n *\n * @member dat.gui\n *\n * @param {Object} [params]\n * @param {String} [params.name] The name of this GUI.\n * @param {Object} [params.load] JSON object representing the saved state of\n * this GUI.\n * @param {Boolean} [params.auto=true]\n * @param {dat.gui.GUI} [params.parent] The GUI I'm nested in.\n * @param {Boolean} [params.closed] If true, starts closed\n */\n var GUI = function(params) {\n\n var _this = this;\n\n /**\n * Outermost DOM Element\n * @type DOMElement\n */\n this.domElement = document.createElement('div');\n this.__ul = document.createElement('ul');\n this.domElement.appendChild(this.__ul);\n\n dom.addClass(this.domElement, CSS_NAMESPACE);\n\n /**\n * Nested GUI's by name\n * @ignore\n */\n this.__folders = {};\n\n this.__controllers = [];\n\n /**\n * List of objects I'm remembering for save, only used in top level GUI\n * @ignore\n */\n this.__rememberedObjects = [];\n\n /**\n * Maps the index of remembered objects to a map of controllers, only used\n * in top level GUI.\n *\n * @private\n * @ignore\n *\n * @example\n * [\n * {\n * propertyName: Controller,\n * anotherPropertyName: Controller\n * },\n * {\n * propertyName: Controller\n * }\n * ]\n */\n this.__rememberedObjectIndecesToControllers = [];\n\n this.__listening = [];\n\n params = params || {};\n\n // Default parameters\n params = common.defaults(params, {\n autoPlace: true,\n width: GUI.DEFAULT_WIDTH\n });\n\n params = common.defaults(params, {\n resizable: params.autoPlace,\n hideable: params.autoPlace\n });\n\n\n if (!common.isUndefined(params.load)) {\n\n // Explicit preset\n if (params.preset) params.load.preset = params.preset;\n\n } else {\n\n params.load = { preset: DEFAULT_DEFAULT_PRESET_NAME };\n\n }\n\n if (common.isUndefined(params.parent) && params.hideable) {\n hideable_guis.push(this);\n }\n\n // Only root level GUI's are resizable.\n params.resizable = common.isUndefined(params.parent) && params.resizable;\n\n\n if (params.autoPlace && common.isUndefined(params.scrollable)) {\n params.scrollable = true;\n }\n// params.scrollable = common.isUndefined(params.parent) && params.scrollable === true;\n\n // Not part of params because I don't want people passing this in via\n // constructor. Should be a 'remembered' value.\n var use_local_storage =\n SUPPORTS_LOCAL_STORAGE &&\n localStorage.getItem(getLocalStorageHash(this, 'isLocal')) === 'true';\n\n Object.defineProperties(this,\n\n /** @lends dat.gui.GUI.prototype */\n {\n\n /**\n * The parent GUI\n * @type dat.gui.GUI\n */\n parent: {\n get: function() {\n return params.parent;\n }\n },\n\n scrollable: {\n get: function() {\n return params.scrollable;\n }\n },\n\n /**\n * Handles GUI's element placement for you\n * @type Boolean\n */\n autoPlace: {\n get: function() {\n return params.autoPlace;\n }\n },\n\n /**\n * The identifier for a set of saved values\n * @type String\n */\n preset: {\n\n get: function() {\n if (_this.parent) {\n return _this.getRoot().preset;\n } else {\n return params.load.preset;\n }\n },\n\n set: function(v) {\n if (_this.parent) {\n _this.getRoot().preset = v;\n } else {\n params.load.preset = v;\n }\n setPresetSelectIndex(this);\n _this.revert();\n }\n\n },\n\n /**\n * The width of GUI element\n * @type Number\n */\n width: {\n get: function() {\n return params.width;\n },\n set: function(v) {\n params.width = v;\n setWidth(_this, v);\n }\n },\n\n /**\n * The name of GUI. Used for folders. i.e\n * a folder's name\n * @type String\n */\n name: {\n get: function() {\n return params.name;\n },\n set: function(v) {\n // TODO Check for collisions among sibling folders\n params.name = v;\n if (title_row_name) {\n title_row_name.innerHTML = params.name;\n }\n }\n },\n\n /**\n * Whether the GUI is collapsed or not\n * @type Boolean\n */\n closed: {\n get: function() {\n return params.closed;\n },\n set: function(v) {\n params.closed = v;\n if (params.closed) {\n dom.addClass(_this.__ul, GUI.CLASS_CLOSED);\n } else {\n dom.removeClass(_this.__ul, GUI.CLASS_CLOSED);\n }\n // For browsers that aren't going to respect the CSS transition,\n // Lets just check our height against the window height right off\n // the bat.\n this.onResize();\n\n if (_this.__closeButton) {\n _this.__closeButton.innerHTML = v ? GUI.TEXT_OPEN : GUI.TEXT_CLOSED;\n }\n }\n },\n\n /**\n * Contains all presets\n * @type Object\n */\n load: {\n get: function() {\n return params.load;\n }\n },\n\n /**\n * Determines whether or not to use localStorage as the means for\n * remembering\n * @type Boolean\n */\n useLocalStorage: {\n\n get: function() {\n return use_local_storage;\n },\n set: function(bool) {\n if (SUPPORTS_LOCAL_STORAGE) {\n use_local_storage = bool;\n if (bool) {\n dom.bind(window, 'unload', saveToLocalStorage);\n } else {\n dom.unbind(window, 'unload', saveToLocalStorage);\n }\n localStorage.setItem(getLocalStorageHash(_this, 'isLocal'), bool);\n }\n }\n\n }\n\n });\n\n // Are we a root level GUI?\n if (common.isUndefined(params.parent)) {\n\n params.closed = false;\n\n dom.addClass(this.domElement, GUI.CLASS_MAIN);\n dom.makeSelectable(this.domElement, false);\n\n // Are we supposed to be loading locally?\n if (SUPPORTS_LOCAL_STORAGE) {\n\n if (use_local_storage) {\n\n _this.useLocalStorage = true;\n\n var saved_gui = localStorage.getItem(getLocalStorageHash(this, 'gui'));\n\n if (saved_gui) {\n params.load = JSON.parse(saved_gui);\n }\n\n }\n\n }\n\n this.__closeButton = document.createElement('div');\n this.__closeButton.innerHTML = GUI.TEXT_CLOSED;\n dom.addClass(this.__closeButton, GUI.CLASS_CLOSE_BUTTON);\n this.domElement.appendChild(this.__closeButton);\n\n dom.bind(this.__closeButton, 'click', function() {\n\n _this.closed = !_this.closed;\n\n\n });\n\n\n // Oh, you're a nested GUI!\n } else {\n\n if (params.closed === undefined) {\n params.closed = true;\n }\n\n var title_row_name = document.createTextNode(params.name);\n dom.addClass(title_row_name, 'controller-name');\n\n var title_row = addRow(_this, title_row_name);\n\n var on_click_title = function(e) {\n e.preventDefault();\n _this.closed = !_this.closed;\n return false;\n };\n\n dom.addClass(this.__ul, GUI.CLASS_CLOSED);\n\n dom.addClass(title_row, 'title');\n dom.bind(title_row, 'click', on_click_title);\n\n if (!params.closed) {\n this.closed = false;\n }\n\n }\n\n if (params.autoPlace) {\n\n if (common.isUndefined(params.parent)) {\n\n if (auto_place_virgin) {\n auto_place_container = document.createElement('div');\n dom.addClass(auto_place_container, CSS_NAMESPACE);\n dom.addClass(auto_place_container, GUI.CLASS_AUTO_PLACE_CONTAINER);\n document.body.appendChild(auto_place_container);\n auto_place_virgin = false;\n }\n\n // Put it in the dom for you.\n auto_place_container.appendChild(this.domElement);\n\n // Apply the auto styles\n dom.addClass(this.domElement, GUI.CLASS_AUTO_PLACE);\n\n }\n\n\n // Make it not elastic.\n if (!this.parent) setWidth(_this, params.width);\n\n }\n\n dom.bind(window, 'resize', function() { _this.onResize() });\n dom.bind(this.__ul, 'webkitTransitionEnd', function() { _this.onResize(); });\n dom.bind(this.__ul, 'transitionend', function() { _this.onResize() });\n dom.bind(this.__ul, 'oTransitionEnd', function() { _this.onResize() });\n this.onResize();\n\n\n if (params.resizable) {\n addResizeHandle(this);\n }\n\n function saveToLocalStorage() {\n localStorage.setItem(getLocalStorageHash(_this, 'gui'), JSON.stringify(_this.getSaveObject()));\n }\n\n var root = _this.getRoot();\n function resetWidth() {\n var root = _this.getRoot();\n root.width += 1;\n common.defer(function() {\n root.width -= 1;\n });\n }\n\n if (!params.parent) {\n resetWidth();\n }\n\n };\n\n GUI.toggleHide = function() {\n\n hide = !hide;\n common.each(hideable_guis, function(gui) {\n gui.domElement.style.zIndex = hide ? -999 : 999;\n gui.domElement.style.opacity = hide ? 0 : 1;\n });\n };\n\n GUI.CLASS_AUTO_PLACE = 'a';\n GUI.CLASS_AUTO_PLACE_CONTAINER = 'ac';\n GUI.CLASS_MAIN = 'main';\n GUI.CLASS_CONTROLLER_ROW = 'cr';\n GUI.CLASS_TOO_TALL = 'taller-than-window';\n GUI.CLASS_CLOSED = 'closed';\n GUI.CLASS_CLOSE_BUTTON = 'close-button';\n GUI.CLASS_DRAG = 'drag';\n\n GUI.DEFAULT_WIDTH = 245;\n GUI.TEXT_CLOSED = 'Close Controls';\n GUI.TEXT_OPEN = 'Open Controls';\n\n dom.bind(window, 'keydown', function(e) {\n\n if (document.activeElement.type !== 'text' &&\n (e.which === HIDE_KEY_CODE || e.keyCode == HIDE_KEY_CODE)) {\n GUI.toggleHide();\n }\n\n }, false);\n\n common.extend(\n\n GUI.prototype,\n\n /** @lends dat.gui.GUI */\n {\n\n /**\n * @param object\n * @param property\n * @returns {dat.controllers.Controller} The new controller that was added.\n * @instance\n */\n add: function(object, property) {\n\n return add(\n this,\n object,\n property,\n {\n factoryArgs: Array.prototype.slice.call(arguments, 2)\n }\n );\n\n },\n\n /**\n * @param object\n * @param property\n * @returns {dat.controllers.ColorController} The new controller that was added.\n * @instance\n */\n addColor: function(object, property) {\n\n return add(\n this,\n object,\n property,\n {\n color: true\n }\n );\n\n },\n\n /**\n * @param controller\n * @instance\n */\n remove: function(controller) {\n\n // TODO listening?\n this.__ul.removeChild(controller.__li);\n this.__controllers.slice(this.__controllers.indexOf(controller), 1);\n var _this = this;\n common.defer(function() {\n _this.onResize();\n });\n\n },\n\n destroy: function() {\n\n if (this.autoPlace) {\n auto_place_container.removeChild(this.domElement);\n }\n\n },\n\n /**\n * @param name\n * @returns {dat.gui.GUI} The new folder.\n * @throws {Error} if this GUI already has a folder by the specified\n * name\n * @instance\n */\n addFolder: function(name) {\n\n // We have to prevent collisions on names in order to have a key\n // by which to remember saved values\n if (this.__folders[name] !== undefined) {\n throw new Error('You already have a folder in this GUI by the' +\n ' name \"' + name + '\"');\n }\n\n var new_gui_params = { name: name, parent: this };\n\n // We need to pass down the autoPlace trait so that we can\n // attach event listeners to open/close folder actions to\n // ensure that a scrollbar appears if the window is too short.\n new_gui_params.autoPlace = this.autoPlace;\n\n // Do we have saved appearance data for this folder?\n\n if (this.load && // Anything loaded?\n this.load.folders && // Was my parent a dead-end?\n this.load.folders[name]) { // Did daddy remember me?\n\n // Start me closed if I was closed\n new_gui_params.closed = this.load.folders[name].closed;\n\n // Pass down the loaded data\n new_gui_params.load = this.load.folders[name];\n\n }\n\n var gui = new GUI(new_gui_params);\n this.__folders[name] = gui;\n\n var li = addRow(this, gui.domElement);\n dom.addClass(li, 'folder');\n return gui;\n\n },\n\n open: function() {\n this.closed = false;\n },\n\n close: function() {\n this.closed = true;\n },\n\n onResize: function() {\n\n var root = this.getRoot();\n\n if (root.scrollable) {\n\n var top = dom.getOffset(root.__ul).top;\n var h = 0;\n\n common.each(root.__ul.childNodes, function(node) {\n if (! (root.autoPlace && node === root.__save_row))\n h += dom.getHeight(node);\n });\n\n if (window.innerHeight - top - CLOSE_BUTTON_HEIGHT < h) {\n dom.addClass(root.domElement, GUI.CLASS_TOO_TALL);\n root.__ul.style.height = window.innerHeight - top - CLOSE_BUTTON_HEIGHT + 'px';\n } else {\n dom.removeClass(root.domElement, GUI.CLASS_TOO_TALL);\n root.__ul.style.height = 'auto';\n }\n\n }\n\n if (root.__resize_handle) {\n common.defer(function() {\n root.__resize_handle.style.height = root.__ul.offsetHeight + 'px';\n });\n }\n\n if (root.__closeButton) {\n root.__closeButton.style.width = root.width + 'px';\n }\n\n },\n\n /**\n * Mark objects for saving. The order of these objects cannot change as\n * the GUI grows. When remembering new objects, append them to the end\n * of the list.\n *\n * @param {Object...} objects\n * @throws {Error} if not called on a top level GUI.\n * @instance\n */\n remember: function() {\n\n if (common.isUndefined(SAVE_DIALOGUE)) {\n SAVE_DIALOGUE = new CenteredDiv();\n SAVE_DIALOGUE.domElement.innerHTML = saveDialogueContents;\n }\n\n if (this.parent) {\n throw new Error(\"You can only call remember on a top level GUI.\");\n }\n\n var _this = this;\n\n common.each(Array.prototype.slice.call(arguments), function(object) {\n if (_this.__rememberedObjects.length == 0) {\n addSaveMenu(_this);\n }\n if (_this.__rememberedObjects.indexOf(object) == -1) {\n _this.__rememberedObjects.push(object);\n }\n });\n\n if (this.autoPlace) {\n // Set save row width\n setWidth(this, this.width);\n }\n\n },\n\n /**\n * @returns {dat.gui.GUI} the topmost parent GUI of a nested GUI.\n * @instance\n */\n getRoot: function() {\n var gui = this;\n while (gui.parent) {\n gui = gui.parent;\n }\n return gui;\n },\n\n /**\n * @returns {Object} a JSON object representing the current state of\n * this GUI as well as its remembered properties.\n * @instance\n */\n getSaveObject: function() {\n\n var toReturn = this.load;\n\n toReturn.closed = this.closed;\n\n // Am I remembering any values?\n if (this.__rememberedObjects.length > 0) {\n\n toReturn.preset = this.preset;\n\n if (!toReturn.remembered) {\n toReturn.remembered = {};\n }\n\n toReturn.remembered[this.preset] = getCurrentPreset(this);\n\n }\n\n toReturn.folders = {};\n common.each(this.__folders, function(element, key) {\n toReturn.folders[key] = element.getSaveObject();\n });\n\n return toReturn;\n\n },\n\n save: function() {\n\n if (!this.load.remembered) {\n this.load.remembered = {};\n }\n\n this.load.remembered[this.preset] = getCurrentPreset(this);\n markPresetModified(this, false);\n\n },\n\n saveAs: function(presetName) {\n\n if (!this.load.remembered) {\n\n // Retain default values upon first save\n this.load.remembered = {};\n this.load.remembered[DEFAULT_DEFAULT_PRESET_NAME] = getCurrentPreset(this, true);\n\n }\n\n this.load.remembered[presetName] = getCurrentPreset(this);\n this.preset = presetName;\n addPresetOption(this, presetName, true);\n\n },\n\n revert: function(gui) {\n\n common.each(this.__controllers, function(controller) {\n // Make revert work on Default.\n if (!this.getRoot().load.remembered) {\n controller.setValue(controller.initialValue);\n } else {\n recallSavedValue(gui || this.getRoot(), controller);\n }\n }, this);\n\n common.each(this.__folders, function(folder) {\n folder.revert(folder);\n });\n\n if (!gui) {\n markPresetModified(this.getRoot(), false);\n }\n\n\n },\n\n listen: function(controller) {\n\n var init = this.__listening.length == 0;\n this.__listening.push(controller);\n if (init) updateDisplays(this.__listening);\n\n }\n\n }\n\n );\n\n function add(gui, object, property, params) {\n\n if (object[property] === undefined) {\n throw new Error(\"Object \" + object + \" has no property \\\"\" + property + \"\\\"\");\n }\n\n var controller;\n\n if (params.color) {\n\n controller = new ColorController(object, property);\n\n } else {\n\n var factoryArgs = [object,property].concat(params.factoryArgs);\n controller = controllerFactory.apply(gui, factoryArgs);\n\n }\n\n if (params.before instanceof Controller) {\n params.before = params.before.__li;\n }\n\n recallSavedValue(gui, controller);\n\n dom.addClass(controller.domElement, 'c');\n\n var name = document.createElement('span');\n dom.addClass(name, 'property-name');\n name.innerHTML = controller.property;\n\n var container = document.createElement('div');\n container.appendChild(name);\n container.appendChild(controller.domElement);\n\n var li = addRow(gui, container, params.before);\n\n dom.addClass(li, GUI.CLASS_CONTROLLER_ROW);\n dom.addClass(li, typeof controller.getValue());\n\n augmentController(gui, li, controller);\n\n gui.__controllers.push(controller);\n\n return controller;\n\n }\n\n /**\n * Add a row to the end of the GUI or before another row.\n *\n * @param gui\n * @param [dom] If specified, inserts the dom content in the new row\n * @param [liBefore] If specified, places the new row before another row\n */\n function addRow(gui, dom, liBefore) {\n var li = document.createElement('li');\n if (dom) li.appendChild(dom);\n if (liBefore) {\n gui.__ul.insertBefore(li, params.before);\n } else {\n gui.__ul.appendChild(li);\n }\n gui.onResize();\n return li;\n }\n\n function augmentController(gui, li, controller) {\n\n controller.__li = li;\n controller.__gui = gui;\n\n common.extend(controller, {\n\n options: function(options) {\n\n if (arguments.length > 1) {\n controller.remove();\n\n return add(\n gui,\n controller.object,\n controller.property,\n {\n before: controller.__li.nextElementSibling,\n factoryArgs: [common.toArray(arguments)]\n }\n );\n\n }\n\n if (common.isArray(options) || common.isObject(options)) {\n controller.remove();\n\n return add(\n gui,\n controller.object,\n controller.property,\n {\n before: controller.__li.nextElementSibling,\n factoryArgs: [options]\n }\n );\n\n }\n\n },\n\n name: function(v) {\n controller.__li.firstElementChild.firstElementChild.innerHTML = v;\n return controller;\n },\n\n listen: function() {\n controller.__gui.listen(controller);\n return controller;\n },\n\n remove: function() {\n controller.__gui.remove(controller);\n return controller;\n }\n\n });\n\n // All sliders should be accompanied by a box.\n if (controller instanceof NumberControllerSlider) {\n\n var box = new NumberControllerBox(controller.object, controller.property,\n { min: controller.__min, max: controller.__max, step: controller.__step });\n\n common.each(['updateDisplay', 'onChange', 'onFinishChange'], function(method) {\n var pc = controller[method];\n var pb = box[method];\n controller[method] = box[method] = function() {\n var args = Array.prototype.slice.call(arguments);\n pc.apply(controller, args);\n return pb.apply(box, args);\n }\n });\n\n dom.addClass(li, 'has-slider');\n controller.domElement.insertBefore(box.domElement, controller.domElement.firstElementChild);\n\n }\n else if (controller instanceof NumberControllerBox) {\n\n var r = function(returned) {\n\n // Have we defined both boundaries?\n if (common.isNumber(controller.__min) && common.isNumber(controller.__max)) {\n\n // Well, then lets just replace this with a slider.\n controller.remove();\n return add(\n gui,\n controller.object,\n controller.property,\n {\n before: controller.__li.nextElementSibling,\n factoryArgs: [controller.__min, controller.__max, controller.__step]\n });\n\n }\n\n return returned;\n\n };\n\n controller.min = common.compose(r, controller.min);\n controller.max = common.compose(r, controller.max);\n\n }\n else if (controller instanceof BooleanController) {\n\n dom.bind(li, 'click', function() {\n dom.fakeEvent(controller.__checkbox, 'click');\n });\n\n dom.bind(controller.__checkbox, 'click', function(e) {\n e.stopPropagation(); // Prevents double-toggle\n })\n\n }\n else if (controller instanceof FunctionController) {\n\n dom.bind(li, 'click', function() {\n dom.fakeEvent(controller.__button, 'click');\n });\n\n dom.bind(li, 'mouseover', function() {\n dom.addClass(controller.__button, 'hover');\n });\n\n dom.bind(li, 'mouseout', function() {\n dom.removeClass(controller.__button, 'hover');\n });\n\n }\n else if (controller instanceof ColorController) {\n\n dom.addClass(li, 'color');\n controller.updateDisplay = common.compose(function(r) {\n li.style.borderLeftColor = controller.__color.toString();\n return r;\n }, controller.updateDisplay);\n\n controller.updateDisplay();\n\n }\n\n controller.setValue = common.compose(function(r) {\n if (gui.getRoot().__preset_select && controller.isModified()) {\n markPresetModified(gui.getRoot(), true);\n }\n return r;\n }, controller.setValue);\n\n }\n\n function recallSavedValue(gui, controller) {\n\n // Find the topmost GUI, that's where remembered objects live.\n var root = gui.getRoot();\n\n // Does the object we're controlling match anything we've been told to\n // remember?\n var matched_index = root.__rememberedObjects.indexOf(controller.object);\n\n // Why yes, it does!\n if (matched_index != -1) {\n\n // Let me fetch a map of controllers for thcommon.isObject.\n var controller_map =\n root.__rememberedObjectIndecesToControllers[matched_index];\n\n // Ohp, I believe this is the first controller we've created for this\n // object. Lets make the map fresh.\n if (controller_map === undefined) {\n controller_map = {};\n root.__rememberedObjectIndecesToControllers[matched_index] =\n controller_map;\n }\n\n // Keep track of this controller\n controller_map[controller.property] = controller;\n\n // Okay, now have we saved any values for this controller?\n if (root.load && root.load.remembered) {\n\n var preset_map = root.load.remembered;\n\n // Which preset are we trying to load?\n var preset;\n\n if (preset_map[gui.preset]) {\n\n preset = preset_map[gui.preset];\n\n } else if (preset_map[DEFAULT_DEFAULT_PRESET_NAME]) {\n\n // Uhh, you can have the default instead?\n preset = preset_map[DEFAULT_DEFAULT_PRESET_NAME];\n\n } else {\n\n // Nada.\n\n return;\n\n }\n\n\n // Did the loaded object remember thcommon.isObject?\n if (preset[matched_index] &&\n\n // Did we remember this particular property?\n preset[matched_index][controller.property] !== undefined) {\n\n // We did remember something for this guy ...\n var value = preset[matched_index][controller.property];\n\n // And that's what it is.\n controller.initialValue = value;\n controller.setValue(value);\n\n }\n\n }\n\n }\n\n }\n\n function getLocalStorageHash(gui, key) {\n // TODO how does this deal with multiple GUI's?\n return document.location.href + '.' + key;\n\n }\n\n function addSaveMenu(gui) {\n\n var div = gui.__save_row = document.createElement('li');\n\n dom.addClass(gui.domElement, 'has-save');\n\n gui.__ul.insertBefore(div, gui.__ul.firstChild);\n\n dom.addClass(div, 'save-row');\n\n var gears = document.createElement('span');\n gears.innerHTML = ' ';\n dom.addClass(gears, 'button gears');\n\n // TODO replace with FunctionController\n var button = document.createElement('span');\n button.innerHTML = 'Save';\n dom.addClass(button, 'button');\n dom.addClass(button, 'save');\n\n var button2 = document.createElement('span');\n button2.innerHTML = 'New';\n dom.addClass(button2, 'button');\n dom.addClass(button2, 'save-as');\n\n var button3 = document.createElement('span');\n button3.innerHTML = 'Revert';\n dom.addClass(button3, 'button');\n dom.addClass(button3, 'revert');\n\n var select = gui.__preset_select = document.createElement('select');\n\n if (gui.load && gui.load.remembered) {\n\n common.each(gui.load.remembered, function(value, key) {\n addPresetOption(gui, key, key == gui.preset);\n });\n\n } else {\n addPresetOption(gui, DEFAULT_DEFAULT_PRESET_NAME, false);\n }\n\n dom.bind(select, 'change', function() {\n\n\n for (var index = 0; index < gui.__preset_select.length; index++) {\n gui.__preset_select[index].innerHTML = gui.__preset_select[index].value;\n }\n\n gui.preset = this.value;\n\n });\n\n div.appendChild(select);\n div.appendChild(gears);\n div.appendChild(button);\n div.appendChild(button2);\n div.appendChild(button3);\n\n if (SUPPORTS_LOCAL_STORAGE) {\n\n var saveLocally = document.getElementById('dg-save-locally');\n var explain = document.getElementById('dg-local-explain');\n\n saveLocally.style.display = 'block';\n\n var localStorageCheckBox = document.getElementById('dg-local-storage');\n\n if (localStorage.getItem(getLocalStorageHash(gui, 'isLocal')) === 'true') {\n localStorageCheckBox.setAttribute('checked', 'checked');\n }\n\n function showHideExplain() {\n explain.style.display = gui.useLocalStorage ? 'block' : 'none';\n }\n\n showHideExplain();\n\n // TODO: Use a boolean controller, fool!\n dom.bind(localStorageCheckBox, 'change', function() {\n gui.useLocalStorage = !gui.useLocalStorage;\n showHideExplain();\n });\n\n }\n\n var newConstructorTextArea = document.getElementById('dg-new-constructor');\n\n dom.bind(newConstructorTextArea, 'keydown', function(e) {\n if (e.metaKey && (e.which === 67 || e.keyCode == 67)) {\n SAVE_DIALOGUE.hide();\n }\n });\n\n dom.bind(gears, 'click', function() {\n newConstructorTextArea.innerHTML = JSON.stringify(gui.getSaveObject(), undefined, 2);\n SAVE_DIALOGUE.show();\n newConstructorTextArea.focus();\n newConstructorTextArea.select();\n });\n\n dom.bind(button, 'click', function() {\n gui.save();\n });\n\n dom.bind(button2, 'click', function() {\n var presetName = prompt('Enter a new preset name.');\n if (presetName) gui.saveAs(presetName);\n });\n\n dom.bind(button3, 'click', function() {\n gui.revert();\n });\n\n// div.appendChild(button2);\n\n }\n\n function addResizeHandle(gui) {\n\n gui.__resize_handle = document.createElement('div');\n\n common.extend(gui.__resize_handle.style, {\n\n width: '6px',\n marginLeft: '-3px',\n height: '200px',\n cursor: 'ew-resize',\n position: 'absolute'\n// border: '1px solid blue'\n\n });\n\n var pmouseX;\n\n dom.bind(gui.__resize_handle, 'mousedown', dragStart);\n dom.bind(gui.__closeButton, 'mousedown', dragStart);\n\n gui.domElement.insertBefore(gui.__resize_handle, gui.domElement.firstElementChild);\n\n function dragStart(e) {\n\n e.preventDefault();\n\n pmouseX = e.clientX;\n\n dom.addClass(gui.__closeButton, GUI.CLASS_DRAG);\n dom.bind(window, 'mousemove', drag);\n dom.bind(window, 'mouseup', dragStop);\n\n return false;\n\n }\n\n function drag(e) {\n\n e.preventDefault();\n\n gui.width += pmouseX - e.clientX;\n gui.onResize();\n pmouseX = e.clientX;\n\n return false;\n\n }\n\n function dragStop() {\n\n dom.removeClass(gui.__closeButton, GUI.CLASS_DRAG);\n dom.unbind(window, 'mousemove', drag);\n dom.unbind(window, 'mouseup', dragStop);\n\n }\n\n }\n\n function setWidth(gui, w) {\n gui.domElement.style.width = w + 'px';\n // Auto placed save-rows are position fixed, so we have to\n // set the width manually if we want it to bleed to the edge\n if (gui.__save_row && gui.autoPlace) {\n gui.__save_row.style.width = w + 'px';\n }if (gui.__closeButton) {\n gui.__closeButton.style.width = w + 'px';\n }\n }\n\n function getCurrentPreset(gui, useInitialValues) {\n\n var toReturn = {};\n\n // For each object I'm remembering\n common.each(gui.__rememberedObjects, function(val, index) {\n\n var saved_values = {};\n\n // The controllers I've made for thcommon.isObject by property\n var controller_map =\n gui.__rememberedObjectIndecesToControllers[index];\n\n // Remember each value for each property\n common.each(controller_map, function(controller, property) {\n saved_values[property] = useInitialValues ? controller.initialValue : controller.getValue();\n });\n\n // Save the values for thcommon.isObject\n toReturn[index] = saved_values;\n\n });\n\n return toReturn;\n\n }\n\n function addPresetOption(gui, name, setSelected) {\n var opt = document.createElement('option');\n opt.innerHTML = name;\n opt.value = name;\n gui.__preset_select.appendChild(opt);\n if (setSelected) {\n gui.__preset_select.selectedIndex = gui.__preset_select.length - 1;\n }\n }\n\n function setPresetSelectIndex(gui) {\n for (var index = 0; index < gui.__preset_select.length; index++) {\n if (gui.__preset_select[index].value == gui.preset) {\n gui.__preset_select.selectedIndex = index;\n }\n }\n }\n\n function markPresetModified(gui, modified) {\n var opt = gui.__preset_select[gui.__preset_select.selectedIndex];\n// console.log('mark', modified, opt);\n if (modified) {\n opt.innerHTML = opt.value + \"*\";\n } else {\n opt.innerHTML = opt.value;\n }\n }\n\n function updateDisplays(controllerArray) {\n\n\n if (controllerArray.length != 0) {\n\n requestAnimationFrame(function() {\n updateDisplays(controllerArray);\n });\n\n }\n\n common.each(controllerArray, function(c) {\n c.updateDisplay();\n });\n\n }\n\n return GUI;\n\n})(dat.utils.css,\n\"
\\n\\n Here's the new load parameter for your GUI's constructor:\\n\\n \\n\\n
\\n\\n Automatically save\\n values to localStorage on exit.\\n\\n
The values saved to localStorage will\\n override those passed to dat.GUI's constructor. This makes it\\n easier to work incrementally, but localStorage is fragile,\\n and your friends may not see the same values you do.\\n \\n
\\n \\n
\\n\\n
\",\n\".dg ul{list-style:none;margin:0;padding:0;width:100%;clear:both}.dg.ac{position:fixed;top:0;left:0;right:0;height:0;z-index:0}.dg:not(.ac) .main{overflow:hidden}.dg.main{-webkit-transition:opacity 0.1s linear;-o-transition:opacity 0.1s linear;-moz-transition:opacity 0.1s linear;transition:opacity 0.1s linear}.dg.main.taller-than-window{overflow-y:auto}.dg.main.taller-than-window .close-button{opacity:1;margin-top:-1px;border-top:1px solid #2c2c2c}.dg.main ul.closed .close-button{opacity:1 !important}.dg.main:hover .close-button,.dg.main .close-button.drag{opacity:1}.dg.main .close-button{-webkit-transition:opacity 0.1s linear;-o-transition:opacity 0.1s linear;-moz-transition:opacity 0.1s linear;transition:opacity 0.1s linear;border:0;position:absolute;line-height:19px;height:20px;cursor:pointer;text-align:center;background-color:#000}.dg.main .close-button:hover{background-color:#111}.dg.a{float:right;margin-right:15px;overflow-x:hidden}.dg.a.has-save ul{margin-top:27px}.dg.a.has-save ul.closed{margin-top:0}.dg.a .save-row{position:fixed;top:0;z-index:1002}.dg li{-webkit-transition:height 0.1s ease-out;-o-transition:height 0.1s ease-out;-moz-transition:height 0.1s ease-out;transition:height 0.1s ease-out}.dg li:not(.folder){cursor:auto;height:27px;line-height:27px;overflow:hidden;padding:0 4px 0 5px}.dg li.folder{padding:0;border-left:4px solid rgba(0,0,0,0)}.dg li.title{cursor:pointer;margin-left:-4px}.dg .closed li:not(.title),.dg .closed ul li,.dg .closed ul li > *{height:0;overflow:hidden;border:0}.dg .cr{clear:both;padding-left:3px;height:27px}.dg .property-name{cursor:default;float:left;clear:left;width:40%;overflow:hidden;text-overflow:ellipsis}.dg .c{float:left;width:60%}.dg .c input[type=text]{border:0;margin-top:4px;padding:3px;width:100%;float:right}.dg .has-slider input[type=text]{width:30%;margin-left:0}.dg .slider{float:left;width:66%;margin-left:-5px;margin-right:0;height:19px;margin-top:4px}.dg .slider-fg{height:100%}.dg .c input[type=checkbox]{margin-top:9px}.dg .c select{margin-top:5px}.dg .cr.function,.dg .cr.function .property-name,.dg .cr.function *,.dg .cr.boolean,.dg .cr.boolean *{cursor:pointer}.dg .selector{display:none;position:absolute;margin-left:-9px;margin-top:23px;z-index:10}.dg .c:hover .selector,.dg .selector.drag{display:block}.dg li.save-row{padding:0}.dg li.save-row .button{display:inline-block;padding:0px 6px}.dg.dialogue{background-color:#222;width:460px;padding:15px;font-size:13px;line-height:15px}#dg-new-constructor{padding:10px;color:#222;font-family:Monaco, monospace;font-size:10px;border:0;resize:none;box-shadow:inset 1px 1px 1px #888;word-wrap:break-word;margin:12px 0;display:block;width:440px;overflow-y:scroll;height:100px;position:relative}#dg-local-explain{display:none;font-size:11px;line-height:17px;border-radius:3px;background-color:#333;padding:8px;margin-top:10px}#dg-local-explain code{font-size:10px}#dat-gui-save-locally{display:none}.dg{color:#eee;font:11px 'Lucida Grande', sans-serif;text-shadow:0 -1px 0 #111}.dg.main::-webkit-scrollbar{width:5px;background:#1a1a1a}.dg.main::-webkit-scrollbar-corner{height:0;display:none}.dg.main::-webkit-scrollbar-thumb{border-radius:5px;background:#676767}.dg li:not(.folder){background:#1a1a1a;border-bottom:1px solid #2c2c2c}.dg li.save-row{line-height:25px;background:#dad5cb;border:0}.dg li.save-row select{margin-left:5px;width:108px}.dg li.save-row .button{margin-left:5px;margin-top:1px;border-radius:2px;font-size:9px;line-height:7px;padding:4px 4px 5px 4px;background:#c5bdad;color:#fff;text-shadow:0 1px 0 #b0a58f;box-shadow:0 -1px 0 #b0a58f;cursor:pointer}.dg li.save-row .button.gears{background:#c5bdad url(data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAsAAAANCAYAAAB/9ZQ7AAAAGXRFWHRTb2Z0d2FyZQBBZG9iZSBJbWFnZVJlYWR5ccllPAAAAQJJREFUeNpiYKAU/P//PwGIC/ApCABiBSAW+I8AClAcgKxQ4T9hoMAEUrxx2QSGN6+egDX+/vWT4e7N82AMYoPAx/evwWoYoSYbACX2s7KxCxzcsezDh3evFoDEBYTEEqycggWAzA9AuUSQQgeYPa9fPv6/YWm/Acx5IPb7ty/fw+QZblw67vDs8R0YHyQhgObx+yAJkBqmG5dPPDh1aPOGR/eugW0G4vlIoTIfyFcA+QekhhHJhPdQxbiAIguMBTQZrPD7108M6roWYDFQiIAAv6Aow/1bFwXgis+f2LUAynwoIaNcz8XNx3Dl7MEJUDGQpx9gtQ8YCueB+D26OECAAQDadt7e46D42QAAAABJRU5ErkJggg==) 2px 1px no-repeat;height:7px;width:8px}.dg li.save-row .button:hover{background-color:#bab19e;box-shadow:0 -1px 0 #b0a58f}.dg li.folder{border-bottom:0}.dg li.title{padding-left:16px;background:#000 url(data:image/gif;base64,R0lGODlhBQAFAJEAAP////Pz8////////yH5BAEAAAIALAAAAAAFAAUAAAIIlI+hKgFxoCgAOw==) 6px 10px no-repeat;cursor:pointer;border-bottom:1px solid rgba(255,255,255,0.2)}.dg .closed li.title{background-image:url(data:image/gif;base64,R0lGODlhBQAFAJEAAP////Pz8////////yH5BAEAAAIALAAAAAAFAAUAAAIIlGIWqMCbWAEAOw==)}.dg .cr.boolean{border-left:3px solid #806787}.dg .cr.function{border-left:3px solid #e61d5f}.dg .cr.number{border-left:3px solid #2fa1d6}.dg .cr.number input[type=text]{color:#2fa1d6}.dg .cr.string{border-left:3px solid #1ed36f}.dg .cr.string input[type=text]{color:#1ed36f}.dg .cr.function:hover,.dg .cr.boolean:hover{background:#111}.dg .c input[type=text]{background:#303030;outline:none}.dg .c input[type=text]:hover{background:#3c3c3c}.dg .c input[type=text]:focus{background:#494949;color:#fff}.dg .c .slider{background:#303030;cursor:ew-resize}.dg .c .slider-fg{background:#2fa1d6}.dg .c .slider:hover{background:#3c3c3c}.dg .c .slider:hover .slider-fg{background:#44abda}\\n\",\ndat.controllers.factory = (function (OptionController, NumberControllerBox, NumberControllerSlider, StringController, FunctionController, BooleanController, common) {\n\n return function(object, property) {\n\n var initialValue = object[property];\n\n // Providing options?\n if (common.isArray(arguments[2]) || common.isObject(arguments[2])) {\n return new OptionController(object, property, arguments[2]);\n }\n\n // Providing a map?\n\n if (common.isNumber(initialValue)) {\n\n if (common.isNumber(arguments[2]) && common.isNumber(arguments[3])) {\n\n // Has min and max.\n return new NumberControllerSlider(object, property, arguments[2], arguments[3]);\n\n } else {\n\n return new NumberControllerBox(object, property, { min: arguments[2], max: arguments[3] });\n\n }\n\n }\n\n if (common.isString(initialValue)) {\n return new StringController(object, property);\n }\n\n if (common.isFunction(initialValue)) {\n return new FunctionController(object, property, '');\n }\n\n if (common.isBoolean(initialValue)) {\n return new BooleanController(object, property);\n }\n\n }\n\n })(dat.controllers.OptionController,\ndat.controllers.NumberControllerBox,\ndat.controllers.NumberControllerSlider,\ndat.controllers.StringController = (function (Controller, dom, common) {\n\n /**\n * @class Provides a text input to alter the string property of an object.\n *\n * @extends dat.controllers.Controller\n *\n * @param {Object} object The object to be manipulated\n * @param {string} property The name of the property to be manipulated\n *\n * @member dat.controllers\n */\n var StringController = function(object, property) {\n\n StringController.superclass.call(this, object, property);\n\n var _this = this;\n\n this.__input = document.createElement('input');\n this.__input.setAttribute('type', 'text');\n\n dom.bind(this.__input, 'keyup', onChange);\n dom.bind(this.__input, 'change', onChange);\n dom.bind(this.__input, 'blur', onBlur);\n dom.bind(this.__input, 'keydown', function(e) {\n if (e.keyCode === 13) {\n this.blur();\n }\n });\n \n\n function onChange() {\n _this.setValue(_this.__input.value);\n }\n\n function onBlur() {\n if (_this.__onFinishChange) {\n _this.__onFinishChange.call(_this, _this.getValue());\n }\n }\n\n this.updateDisplay();\n\n this.domElement.appendChild(this.__input);\n\n };\n\n StringController.superclass = Controller;\n\n common.extend(\n\n StringController.prototype,\n Controller.prototype,\n\n {\n\n updateDisplay: function() {\n // Stops the caret from moving on account of:\n // keyup -> setValue -> updateDisplay\n if (!dom.isActive(this.__input)) {\n this.__input.value = this.getValue();\n }\n return StringController.superclass.prototype.updateDisplay.call(this);\n }\n\n }\n\n );\n\n return StringController;\n\n})(dat.controllers.Controller,\ndat.dom.dom,\ndat.utils.common),\ndat.controllers.FunctionController,\ndat.controllers.BooleanController,\ndat.utils.common),\ndat.controllers.Controller,\ndat.controllers.BooleanController,\ndat.controllers.FunctionController,\ndat.controllers.NumberControllerBox,\ndat.controllers.NumberControllerSlider,\ndat.controllers.OptionController,\ndat.controllers.ColorController = (function (Controller, dom, Color, interpret, common) {\n\n var ColorController = function(object, property) {\n\n ColorController.superclass.call(this, object, property);\n\n this.__color = new Color(this.getValue());\n this.__temp = new Color(0);\n\n var _this = this;\n\n this.domElement = document.createElement('div');\n\n dom.makeSelectable(this.domElement, false);\n\n this.__selector = document.createElement('div');\n this.__selector.className = 'selector';\n\n this.__saturation_field = document.createElement('div');\n this.__saturation_field.className = 'saturation-field';\n\n this.__field_knob = document.createElement('div');\n this.__field_knob.className = 'field-knob';\n this.__field_knob_border = '2px solid ';\n\n this.__hue_knob = document.createElement('div');\n this.__hue_knob.className = 'hue-knob';\n\n this.__hue_field = document.createElement('div');\n this.__hue_field.className = 'hue-field';\n\n this.__input = document.createElement('input');\n this.__input.type = 'text';\n this.__input_textShadow = '0 1px 1px ';\n\n dom.bind(this.__input, 'keydown', function(e) {\n if (e.keyCode === 13) { // on enter\n onBlur.call(this);\n }\n });\n\n dom.bind(this.__input, 'blur', onBlur);\n\n dom.bind(this.__selector, 'mousedown', function(e) {\n\n dom\n .addClass(this, 'drag')\n .bind(window, 'mouseup', function(e) {\n dom.removeClass(_this.__selector, 'drag');\n });\n\n });\n\n var value_field = document.createElement('div');\n\n common.extend(this.__selector.style, {\n width: '122px',\n height: '102px',\n padding: '3px',\n backgroundColor: '#222',\n boxShadow: '0px 1px 3px rgba(0,0,0,0.3)'\n });\n\n common.extend(this.__field_knob.style, {\n position: 'absolute',\n width: '12px',\n height: '12px',\n border: this.__field_knob_border + (this.__color.v < .5 ? '#fff' : '#000'),\n boxShadow: '0px 1px 3px rgba(0,0,0,0.5)',\n borderRadius: '12px',\n zIndex: 1\n });\n \n common.extend(this.__hue_knob.style, {\n position: 'absolute',\n width: '15px',\n height: '2px',\n borderRight: '4px solid #fff',\n zIndex: 1\n });\n\n common.extend(this.__saturation_field.style, {\n width: '100px',\n height: '100px',\n border: '1px solid #555',\n marginRight: '3px',\n display: 'inline-block',\n cursor: 'pointer'\n });\n\n common.extend(value_field.style, {\n width: '100%',\n height: '100%',\n background: 'none'\n });\n \n linearGradient(value_field, 'top', 'rgba(0,0,0,0)', '#000');\n\n common.extend(this.__hue_field.style, {\n width: '15px',\n height: '100px',\n display: 'inline-block',\n border: '1px solid #555',\n cursor: 'ns-resize'\n });\n\n hueGradient(this.__hue_field);\n\n common.extend(this.__input.style, {\n outline: 'none',\n// width: '120px',\n textAlign: 'center',\n// padding: '4px',\n// marginBottom: '6px',\n color: '#fff',\n border: 0,\n fontWeight: 'bold',\n textShadow: this.__input_textShadow + 'rgba(0,0,0,0.7)'\n });\n\n dom.bind(this.__saturation_field, 'mousedown', fieldDown);\n dom.bind(this.__field_knob, 'mousedown', fieldDown);\n\n dom.bind(this.__hue_field, 'mousedown', function(e) {\n setH(e);\n dom.bind(window, 'mousemove', setH);\n dom.bind(window, 'mouseup', unbindH);\n });\n\n function fieldDown(e) {\n setSV(e);\n // document.body.style.cursor = 'none';\n dom.bind(window, 'mousemove', setSV);\n dom.bind(window, 'mouseup', unbindSV);\n }\n\n function unbindSV() {\n dom.unbind(window, 'mousemove', setSV);\n dom.unbind(window, 'mouseup', unbindSV);\n // document.body.style.cursor = 'default';\n }\n\n function onBlur() {\n var i = interpret(this.value);\n if (i !== false) {\n _this.__color.__state = i;\n _this.setValue(_this.__color.toOriginal());\n } else {\n this.value = _this.__color.toString();\n }\n }\n\n function unbindH() {\n dom.unbind(window, 'mousemove', setH);\n dom.unbind(window, 'mouseup', unbindH);\n }\n\n this.__saturation_field.appendChild(value_field);\n this.__selector.appendChild(this.__field_knob);\n this.__selector.appendChild(this.__saturation_field);\n this.__selector.appendChild(this.__hue_field);\n this.__hue_field.appendChild(this.__hue_knob);\n\n this.domElement.appendChild(this.__input);\n this.domElement.appendChild(this.__selector);\n\n this.updateDisplay();\n\n function setSV(e) {\n\n e.preventDefault();\n\n var w = dom.getWidth(_this.__saturation_field);\n var o = dom.getOffset(_this.__saturation_field);\n var s = (e.clientX - o.left + document.body.scrollLeft) / w;\n var v = 1 - (e.clientY - o.top + document.body.scrollTop) / w;\n\n if (v > 1) v = 1;\n else if (v < 0) v = 0;\n\n if (s > 1) s = 1;\n else if (s < 0) s = 0;\n\n _this.__color.v = v;\n _this.__color.s = s;\n\n _this.setValue(_this.__color.toOriginal());\n\n\n return false;\n\n }\n\n function setH(e) {\n\n e.preventDefault();\n\n var s = dom.getHeight(_this.__hue_field);\n var o = dom.getOffset(_this.__hue_field);\n var h = 1 - (e.clientY - o.top + document.body.scrollTop) / s;\n\n if (h > 1) h = 1;\n else if (h < 0) h = 0;\n\n _this.__color.h = h * 360;\n\n _this.setValue(_this.__color.toOriginal());\n\n return false;\n\n }\n\n };\n\n ColorController.superclass = Controller;\n\n common.extend(\n\n ColorController.prototype,\n Controller.prototype,\n\n {\n\n updateDisplay: function() {\n\n var i = interpret(this.getValue());\n\n if (i !== false) {\n\n var mismatch = false;\n\n // Check for mismatch on the interpreted value.\n\n common.each(Color.COMPONENTS, function(component) {\n if (!common.isUndefined(i[component]) &&\n !common.isUndefined(this.__color.__state[component]) &&\n i[component] !== this.__color.__state[component]) {\n mismatch = true;\n return {}; // break\n }\n }, this);\n\n // If nothing diverges, we keep our previous values\n // for statefulness, otherwise we recalculate fresh\n if (mismatch) {\n common.extend(this.__color.__state, i);\n }\n\n }\n\n common.extend(this.__temp.__state, this.__color.__state);\n\n this.__temp.a = 1;\n\n var flip = (this.__color.v < .5 || this.__color.s > .5) ? 255 : 0;\n var _flip = 255 - flip;\n\n common.extend(this.__field_knob.style, {\n marginLeft: 100 * this.__color.s - 7 + 'px',\n marginTop: 100 * (1 - this.__color.v) - 7 + 'px',\n backgroundColor: this.__temp.toString(),\n border: this.__field_knob_border + 'rgb(' + flip + ',' + flip + ',' + flip +')'\n });\n\n this.__hue_knob.style.marginTop = (1 - this.__color.h / 360) * 100 + 'px'\n\n this.__temp.s = 1;\n this.__temp.v = 1;\n\n linearGradient(this.__saturation_field, 'left', '#fff', this.__temp.toString());\n\n common.extend(this.__input.style, {\n backgroundColor: this.__input.value = this.__color.toString(),\n color: 'rgb(' + flip + ',' + flip + ',' + flip +')',\n textShadow: this.__input_textShadow + 'rgba(' + _flip + ',' + _flip + ',' + _flip +',.7)'\n });\n\n }\n\n }\n\n );\n \n var vendors = ['-moz-','-o-','-webkit-','-ms-',''];\n \n function linearGradient(elem, x, a, b) {\n elem.style.background = '';\n common.each(vendors, function(vendor) {\n elem.style.cssText += 'background: ' + vendor + 'linear-gradient('+x+', '+a+' 0%, ' + b + ' 100%); ';\n });\n }\n \n function hueGradient(elem) {\n elem.style.background = '';\n elem.style.cssText += 'background: -moz-linear-gradient(top, #ff0000 0%, #ff00ff 17%, #0000ff 34%, #00ffff 50%, #00ff00 67%, #ffff00 84%, #ff0000 100%);'\n elem.style.cssText += 'background: -webkit-linear-gradient(top, #ff0000 0%,#ff00ff 17%,#0000ff 34%,#00ffff 50%,#00ff00 67%,#ffff00 84%,#ff0000 100%);'\n elem.style.cssText += 'background: -o-linear-gradient(top, #ff0000 0%,#ff00ff 17%,#0000ff 34%,#00ffff 50%,#00ff00 67%,#ffff00 84%,#ff0000 100%);'\n elem.style.cssText += 'background: -ms-linear-gradient(top, #ff0000 0%,#ff00ff 17%,#0000ff 34%,#00ffff 50%,#00ff00 67%,#ffff00 84%,#ff0000 100%);'\n elem.style.cssText += 'background: linear-gradient(top, #ff0000 0%,#ff00ff 17%,#0000ff 34%,#00ffff 50%,#00ff00 67%,#ffff00 84%,#ff0000 100%);'\n }\n\n\n return ColorController;\n\n})(dat.controllers.Controller,\ndat.dom.dom,\ndat.color.Color = (function (interpret, math, toString, common) {\n\n var Color = function() {\n\n this.__state = interpret.apply(this, arguments);\n\n if (this.__state === false) {\n throw 'Failed to interpret color arguments';\n }\n\n this.__state.a = this.__state.a || 1;\n\n\n };\n\n Color.COMPONENTS = ['r','g','b','h','s','v','hex','a'];\n\n common.extend(Color.prototype, {\n\n toString: function() {\n return toString(this);\n },\n\n toOriginal: function() {\n return this.__state.conversion.write(this);\n }\n\n });\n\n defineRGBComponent(Color.prototype, 'r', 2);\n defineRGBComponent(Color.prototype, 'g', 1);\n defineRGBComponent(Color.prototype, 'b', 0);\n\n defineHSVComponent(Color.prototype, 'h');\n defineHSVComponent(Color.prototype, 's');\n defineHSVComponent(Color.prototype, 'v');\n\n Object.defineProperty(Color.prototype, 'a', {\n\n get: function() {\n return this.__state.a;\n },\n\n set: function(v) {\n this.__state.a = v;\n }\n\n });\n\n Object.defineProperty(Color.prototype, 'hex', {\n\n get: function() {\n\n if (!this.__state.space !== 'HEX') {\n this.__state.hex = math.rgb_to_hex(this.r, this.g, this.b);\n }\n\n return this.__state.hex;\n\n },\n\n set: function(v) {\n\n this.__state.space = 'HEX';\n this.__state.hex = v;\n\n }\n\n });\n\n function defineRGBComponent(target, component, componentHexIndex) {\n\n Object.defineProperty(target, component, {\n\n get: function() {\n\n if (this.__state.space === 'RGB') {\n return this.__state[component];\n }\n\n recalculateRGB(this, component, componentHexIndex);\n\n return this.__state[component];\n\n },\n\n set: function(v) {\n\n if (this.__state.space !== 'RGB') {\n recalculateRGB(this, component, componentHexIndex);\n this.__state.space = 'RGB';\n }\n\n this.__state[component] = v;\n\n }\n\n });\n\n }\n\n function defineHSVComponent(target, component) {\n\n Object.defineProperty(target, component, {\n\n get: function() {\n\n if (this.__state.space === 'HSV')\n return this.__state[component];\n\n recalculateHSV(this);\n\n return this.__state[component];\n\n },\n\n set: function(v) {\n\n if (this.__state.space !== 'HSV') {\n recalculateHSV(this);\n this.__state.space = 'HSV';\n }\n\n this.__state[component] = v;\n\n }\n\n });\n\n }\n\n function recalculateRGB(color, component, componentHexIndex) {\n\n if (color.__state.space === 'HEX') {\n\n color.__state[component] = math.component_from_hex(color.__state.hex, componentHexIndex);\n\n } else if (color.__state.space === 'HSV') {\n\n common.extend(color.__state, math.hsv_to_rgb(color.__state.h, color.__state.s, color.__state.v));\n\n } else {\n\n throw 'Corrupted color state';\n\n }\n\n }\n\n function recalculateHSV(color) {\n\n var result = math.rgb_to_hsv(color.r, color.g, color.b);\n\n common.extend(color.__state,\n {\n s: result.s,\n v: result.v\n }\n );\n\n if (!common.isNaN(result.h)) {\n color.__state.h = result.h;\n } else if (common.isUndefined(color.__state.h)) {\n color.__state.h = 0;\n }\n\n }\n\n return Color;\n\n})(dat.color.interpret,\ndat.color.math = (function () {\n\n var tmpComponent;\n\n return {\n\n hsv_to_rgb: function(h, s, v) {\n\n var hi = Math.floor(h / 60) % 6;\n\n var f = h / 60 - Math.floor(h / 60);\n var p = v * (1.0 - s);\n var q = v * (1.0 - (f * s));\n var t = v * (1.0 - ((1.0 - f) * s));\n var c = [\n [v, t, p],\n [q, v, p],\n [p, v, t],\n [p, q, v],\n [t, p, v],\n [v, p, q]\n ][hi];\n\n return {\n r: c[0] * 255,\n g: c[1] * 255,\n b: c[2] * 255\n };\n\n },\n\n rgb_to_hsv: function(r, g, b) {\n\n var min = Math.min(r, g, b),\n max = Math.max(r, g, b),\n delta = max - min,\n h, s;\n\n if (max != 0) {\n s = delta / max;\n } else {\n return {\n h: NaN,\n s: 0,\n v: 0\n };\n }\n\n if (r == max) {\n h = (g - b) / delta;\n } else if (g == max) {\n h = 2 + (b - r) / delta;\n } else {\n h = 4 + (r - g) / delta;\n }\n h /= 6;\n if (h < 0) {\n h += 1;\n }\n\n return {\n h: h * 360,\n s: s,\n v: max / 255\n };\n },\n\n rgb_to_hex: function(r, g, b) {\n var hex = this.hex_with_component(0, 2, r);\n hex = this.hex_with_component(hex, 1, g);\n hex = this.hex_with_component(hex, 0, b);\n return hex;\n },\n\n component_from_hex: function(hex, componentIndex) {\n return (hex >> (componentIndex * 8)) & 0xFF;\n },\n\n hex_with_component: function(hex, componentIndex, value) {\n return value << (tmpComponent = componentIndex * 8) | (hex & ~ (0xFF << tmpComponent));\n }\n\n }\n\n})(),\ndat.color.toString,\ndat.utils.common),\ndat.color.interpret,\ndat.utils.common),\ndat.utils.requestAnimationFrame = (function () {\n\n /**\n * requirejs version of Paul Irish's RequestAnimationFrame\n * http://paulirish.com/2011/requestanimationframe-for-smart-animating/\n */\n\n return window.webkitRequestAnimationFrame ||\n window.mozRequestAnimationFrame ||\n window.oRequestAnimationFrame ||\n window.msRequestAnimationFrame ||\n function(callback, element) {\n\n window.setTimeout(callback, 1000 / 60);\n\n };\n})(),\ndat.dom.CenteredDiv = (function (dom, common) {\n\n\n var CenteredDiv = function() {\n\n this.backgroundElement = document.createElement('div');\n common.extend(this.backgroundElement.style, {\n backgroundColor: 'rgba(0,0,0,0.8)',\n top: 0,\n left: 0,\n display: 'none',\n zIndex: '1000',\n opacity: 0,\n WebkitTransition: 'opacity 0.2s linear'\n });\n\n dom.makeFullscreen(this.backgroundElement);\n this.backgroundElement.style.position = 'fixed';\n\n this.domElement = document.createElement('div');\n common.extend(this.domElement.style, {\n position: 'fixed',\n display: 'none',\n zIndex: '1001',\n opacity: 0,\n WebkitTransition: '-webkit-transform 0.2s ease-out, opacity 0.2s linear'\n });\n\n\n document.body.appendChild(this.backgroundElement);\n document.body.appendChild(this.domElement);\n\n var _this = this;\n dom.bind(this.backgroundElement, 'click', function() {\n _this.hide();\n });\n\n\n };\n\n CenteredDiv.prototype.show = function() {\n\n var _this = this;\n \n\n\n this.backgroundElement.style.display = 'block';\n\n this.domElement.style.display = 'block';\n this.domElement.style.opacity = 0;\n// this.domElement.style.top = '52%';\n this.domElement.style.webkitTransform = 'scale(1.1)';\n\n this.layout();\n\n common.defer(function() {\n _this.backgroundElement.style.opacity = 1;\n _this.domElement.style.opacity = 1;\n _this.domElement.style.webkitTransform = 'scale(1)';\n });\n\n };\n\n CenteredDiv.prototype.hide = function() {\n\n var _this = this;\n\n var hide = function() {\n\n _this.domElement.style.display = 'none';\n _this.backgroundElement.style.display = 'none';\n\n dom.unbind(_this.domElement, 'webkitTransitionEnd', hide);\n dom.unbind(_this.domElement, 'transitionend', hide);\n dom.unbind(_this.domElement, 'oTransitionEnd', hide);\n\n };\n\n dom.bind(this.domElement, 'webkitTransitionEnd', hide);\n dom.bind(this.domElement, 'transitionend', hide);\n dom.bind(this.domElement, 'oTransitionEnd', hide);\n\n this.backgroundElement.style.opacity = 0;\n// this.domElement.style.top = '48%';\n this.domElement.style.opacity = 0;\n this.domElement.style.webkitTransform = 'scale(1.1)';\n\n };\n\n CenteredDiv.prototype.layout = function() {\n this.domElement.style.left = window.innerWidth/2 - dom.getWidth(this.domElement) / 2 + 'px';\n this.domElement.style.top = window.innerHeight/2 - dom.getHeight(this.domElement) / 2 + 'px';\n };\n \n function lockScroll(e) {\n console.log(e);\n }\n\n return CenteredDiv;\n\n})(dat.dom.dom,\ndat.utils.common),\ndat.dom.dom,\ndat.utils.common);\n\n\n//////////////////\n// WEBPACK FOOTER\n// ./node_modules/dat-gui/vendor/dat.gui.js\n// module id = 27\n// module chunks = 0","/**\n * dat-gui JavaScript Controller Library\n * http://code.google.com/p/dat-gui\n *\n * Copyright 2011 Data Arts Team, Google Creative Lab\n *\n * Licensed under the Apache License, Version 2.0 (the \"License\");\n * you may not use this file except in compliance with the License.\n * You may obtain a copy of the License at\n *\n * http://www.apache.org/licenses/LICENSE-2.0\n */\n\n/** @namespace */\nvar dat = module.exports = dat || {};\n\n/** @namespace */\ndat.color = dat.color || {};\n\n/** @namespace */\ndat.utils = dat.utils || {};\n\ndat.utils.common = (function () {\n \n var ARR_EACH = Array.prototype.forEach;\n var ARR_SLICE = Array.prototype.slice;\n\n /**\n * Band-aid methods for things that should be a lot easier in JavaScript.\n * Implementation and structure inspired by underscore.js\n * http://documentcloud.github.com/underscore/\n */\n\n return { \n \n BREAK: {},\n \n extend: function(target) {\n \n this.each(ARR_SLICE.call(arguments, 1), function(obj) {\n \n for (var key in obj)\n if (!this.isUndefined(obj[key])) \n target[key] = obj[key];\n \n }, this);\n \n return target;\n \n },\n \n defaults: function(target) {\n \n this.each(ARR_SLICE.call(arguments, 1), function(obj) {\n \n for (var key in obj)\n if (this.isUndefined(target[key])) \n target[key] = obj[key];\n \n }, this);\n \n return target;\n \n },\n \n compose: function() {\n var toCall = ARR_SLICE.call(arguments);\n return function() {\n var args = ARR_SLICE.call(arguments);\n for (var i = toCall.length -1; i >= 0; i--) {\n args = [toCall[i].apply(this, args)];\n }\n return args[0];\n }\n },\n \n each: function(obj, itr, scope) {\n\n \n if (ARR_EACH && obj.forEach === ARR_EACH) { \n \n obj.forEach(itr, scope);\n \n } else if (obj.length === obj.length + 0) { // Is number but not NaN\n \n for (var key = 0, l = obj.length; key < l; key++)\n if (key in obj && itr.call(scope, obj[key], key) === this.BREAK) \n return;\n \n } else {\n\n for (var key in obj) \n if (itr.call(scope, obj[key], key) === this.BREAK)\n return;\n \n }\n \n },\n \n defer: function(fnc) {\n setTimeout(fnc, 0);\n },\n \n toArray: function(obj) {\n if (obj.toArray) return obj.toArray();\n return ARR_SLICE.call(obj);\n },\n\n isUndefined: function(obj) {\n return obj === undefined;\n },\n \n isNull: function(obj) {\n return obj === null;\n },\n \n isNaN: function(obj) {\n return obj !== obj;\n },\n \n isArray: Array.isArray || function(obj) {\n return obj.constructor === Array;\n },\n \n isObject: function(obj) {\n return obj === Object(obj);\n },\n \n isNumber: function(obj) {\n return obj === obj+0;\n },\n \n isString: function(obj) {\n return obj === obj+'';\n },\n \n isBoolean: function(obj) {\n return obj === false || obj === true;\n },\n \n isFunction: function(obj) {\n return Object.prototype.toString.call(obj) === '[object Function]';\n }\n \n };\n \n})();\n\n\ndat.color.toString = (function (common) {\n\n return function(color) {\n\n if (color.a == 1 || common.isUndefined(color.a)) {\n\n var s = color.hex.toString(16);\n while (s.length < 6) {\n s = '0' + s;\n }\n\n return '#' + s;\n\n } else {\n\n return 'rgba(' + Math.round(color.r) + ',' + Math.round(color.g) + ',' + Math.round(color.b) + ',' + color.a + ')';\n\n }\n\n }\n\n})(dat.utils.common);\n\n\ndat.Color = dat.color.Color = (function (interpret, math, toString, common) {\n\n var Color = function() {\n\n this.__state = interpret.apply(this, arguments);\n\n if (this.__state === false) {\n throw 'Failed to interpret color arguments';\n }\n\n this.__state.a = this.__state.a || 1;\n\n\n };\n\n Color.COMPONENTS = ['r','g','b','h','s','v','hex','a'];\n\n common.extend(Color.prototype, {\n\n toString: function() {\n return toString(this);\n },\n\n toOriginal: function() {\n return this.__state.conversion.write(this);\n }\n\n });\n\n defineRGBComponent(Color.prototype, 'r', 2);\n defineRGBComponent(Color.prototype, 'g', 1);\n defineRGBComponent(Color.prototype, 'b', 0);\n\n defineHSVComponent(Color.prototype, 'h');\n defineHSVComponent(Color.prototype, 's');\n defineHSVComponent(Color.prototype, 'v');\n\n Object.defineProperty(Color.prototype, 'a', {\n\n get: function() {\n return this.__state.a;\n },\n\n set: function(v) {\n this.__state.a = v;\n }\n\n });\n\n Object.defineProperty(Color.prototype, 'hex', {\n\n get: function() {\n\n if (!this.__state.space !== 'HEX') {\n this.__state.hex = math.rgb_to_hex(this.r, this.g, this.b);\n }\n\n return this.__state.hex;\n\n },\n\n set: function(v) {\n\n this.__state.space = 'HEX';\n this.__state.hex = v;\n\n }\n\n });\n\n function defineRGBComponent(target, component, componentHexIndex) {\n\n Object.defineProperty(target, component, {\n\n get: function() {\n\n if (this.__state.space === 'RGB') {\n return this.__state[component];\n }\n\n recalculateRGB(this, component, componentHexIndex);\n\n return this.__state[component];\n\n },\n\n set: function(v) {\n\n if (this.__state.space !== 'RGB') {\n recalculateRGB(this, component, componentHexIndex);\n this.__state.space = 'RGB';\n }\n\n this.__state[component] = v;\n\n }\n\n });\n\n }\n\n function defineHSVComponent(target, component) {\n\n Object.defineProperty(target, component, {\n\n get: function() {\n\n if (this.__state.space === 'HSV')\n return this.__state[component];\n\n recalculateHSV(this);\n\n return this.__state[component];\n\n },\n\n set: function(v) {\n\n if (this.__state.space !== 'HSV') {\n recalculateHSV(this);\n this.__state.space = 'HSV';\n }\n\n this.__state[component] = v;\n\n }\n\n });\n\n }\n\n function recalculateRGB(color, component, componentHexIndex) {\n\n if (color.__state.space === 'HEX') {\n\n color.__state[component] = math.component_from_hex(color.__state.hex, componentHexIndex);\n\n } else if (color.__state.space === 'HSV') {\n\n common.extend(color.__state, math.hsv_to_rgb(color.__state.h, color.__state.s, color.__state.v));\n\n } else {\n\n throw 'Corrupted color state';\n\n }\n\n }\n\n function recalculateHSV(color) {\n\n var result = math.rgb_to_hsv(color.r, color.g, color.b);\n\n common.extend(color.__state,\n {\n s: result.s,\n v: result.v\n }\n );\n\n if (!common.isNaN(result.h)) {\n color.__state.h = result.h;\n } else if (common.isUndefined(color.__state.h)) {\n color.__state.h = 0;\n }\n\n }\n\n return Color;\n\n})(dat.color.interpret = (function (toString, common) {\n\n var result, toReturn;\n\n var interpret = function() {\n\n toReturn = false;\n\n var original = arguments.length > 1 ? common.toArray(arguments) : arguments[0];\n\n common.each(INTERPRETATIONS, function(family) {\n\n if (family.litmus(original)) {\n\n common.each(family.conversions, function(conversion, conversionName) {\n\n result = conversion.read(original);\n\n if (toReturn === false && result !== false) {\n toReturn = result;\n result.conversionName = conversionName;\n result.conversion = conversion;\n return common.BREAK;\n\n }\n\n });\n\n return common.BREAK;\n\n }\n\n });\n\n return toReturn;\n\n };\n\n var INTERPRETATIONS = [\n\n // Strings\n {\n\n litmus: common.isString,\n\n conversions: {\n\n THREE_CHAR_HEX: {\n\n read: function(original) {\n\n var test = original.match(/^#([A-F0-9])([A-F0-9])([A-F0-9])$/i);\n if (test === null) return false;\n\n return {\n space: 'HEX',\n hex: parseInt(\n '0x' +\n test[1].toString() + test[1].toString() +\n test[2].toString() + test[2].toString() +\n test[3].toString() + test[3].toString())\n };\n\n },\n\n write: toString\n\n },\n\n SIX_CHAR_HEX: {\n\n read: function(original) {\n\n var test = original.match(/^#([A-F0-9]{6})$/i);\n if (test === null) return false;\n\n return {\n space: 'HEX',\n hex: parseInt('0x' + test[1].toString())\n };\n\n },\n\n write: toString\n\n },\n\n CSS_RGB: {\n\n read: function(original) {\n\n var test = original.match(/^rgb\\(\\s*(.+)\\s*,\\s*(.+)\\s*,\\s*(.+)\\s*\\)/);\n if (test === null) return false;\n\n return {\n space: 'RGB',\n r: parseFloat(test[1]),\n g: parseFloat(test[2]),\n b: parseFloat(test[3])\n };\n\n },\n\n write: toString\n\n },\n\n CSS_RGBA: {\n\n read: function(original) {\n\n var test = original.match(/^rgba\\(\\s*(.+)\\s*,\\s*(.+)\\s*,\\s*(.+)\\s*\\,\\s*(.+)\\s*\\)/);\n if (test === null) return false;\n\n return {\n space: 'RGB',\n r: parseFloat(test[1]),\n g: parseFloat(test[2]),\n b: parseFloat(test[3]),\n a: parseFloat(test[4])\n };\n\n },\n\n write: toString\n\n }\n\n }\n\n },\n\n // Numbers\n {\n\n litmus: common.isNumber,\n\n conversions: {\n\n HEX: {\n read: function(original) {\n return {\n space: 'HEX',\n hex: original,\n conversionName: 'HEX'\n }\n },\n\n write: function(color) {\n return color.hex;\n }\n }\n\n }\n\n },\n\n // Arrays\n {\n\n litmus: common.isArray,\n\n conversions: {\n\n RGB_ARRAY: {\n read: function(original) {\n if (original.length != 3) return false;\n return {\n space: 'RGB',\n r: original[0],\n g: original[1],\n b: original[2]\n };\n },\n\n write: function(color) {\n return [color.r, color.g, color.b];\n }\n\n },\n\n RGBA_ARRAY: {\n read: function(original) {\n if (original.length != 4) return false;\n return {\n space: 'RGB',\n r: original[0],\n g: original[1],\n b: original[2],\n a: original[3]\n };\n },\n\n write: function(color) {\n return [color.r, color.g, color.b, color.a];\n }\n\n }\n\n }\n\n },\n\n // Objects\n {\n\n litmus: common.isObject,\n\n conversions: {\n\n RGBA_OBJ: {\n read: function(original) {\n if (common.isNumber(original.r) &&\n common.isNumber(original.g) &&\n common.isNumber(original.b) &&\n common.isNumber(original.a)) {\n return {\n space: 'RGB',\n r: original.r,\n g: original.g,\n b: original.b,\n a: original.a\n }\n }\n return false;\n },\n\n write: function(color) {\n return {\n r: color.r,\n g: color.g,\n b: color.b,\n a: color.a\n }\n }\n },\n\n RGB_OBJ: {\n read: function(original) {\n if (common.isNumber(original.r) &&\n common.isNumber(original.g) &&\n common.isNumber(original.b)) {\n return {\n space: 'RGB',\n r: original.r,\n g: original.g,\n b: original.b\n }\n }\n return false;\n },\n\n write: function(color) {\n return {\n r: color.r,\n g: color.g,\n b: color.b\n }\n }\n },\n\n HSVA_OBJ: {\n read: function(original) {\n if (common.isNumber(original.h) &&\n common.isNumber(original.s) &&\n common.isNumber(original.v) &&\n common.isNumber(original.a)) {\n return {\n space: 'HSV',\n h: original.h,\n s: original.s,\n v: original.v,\n a: original.a\n }\n }\n return false;\n },\n\n write: function(color) {\n return {\n h: color.h,\n s: color.s,\n v: color.v,\n a: color.a\n }\n }\n },\n\n HSV_OBJ: {\n read: function(original) {\n if (common.isNumber(original.h) &&\n common.isNumber(original.s) &&\n common.isNumber(original.v)) {\n return {\n space: 'HSV',\n h: original.h,\n s: original.s,\n v: original.v\n }\n }\n return false;\n },\n\n write: function(color) {\n return {\n h: color.h,\n s: color.s,\n v: color.v\n }\n }\n\n }\n\n }\n\n }\n\n\n ];\n\n return interpret;\n\n\n})(dat.color.toString,\ndat.utils.common),\ndat.color.math = (function () {\n\n var tmpComponent;\n\n return {\n\n hsv_to_rgb: function(h, s, v) {\n\n var hi = Math.floor(h / 60) % 6;\n\n var f = h / 60 - Math.floor(h / 60);\n var p = v * (1.0 - s);\n var q = v * (1.0 - (f * s));\n var t = v * (1.0 - ((1.0 - f) * s));\n var c = [\n [v, t, p],\n [q, v, p],\n [p, v, t],\n [p, q, v],\n [t, p, v],\n [v, p, q]\n ][hi];\n\n return {\n r: c[0] * 255,\n g: c[1] * 255,\n b: c[2] * 255\n };\n\n },\n\n rgb_to_hsv: function(r, g, b) {\n\n var min = Math.min(r, g, b),\n max = Math.max(r, g, b),\n delta = max - min,\n h, s;\n\n if (max != 0) {\n s = delta / max;\n } else {\n return {\n h: NaN,\n s: 0,\n v: 0\n };\n }\n\n if (r == max) {\n h = (g - b) / delta;\n } else if (g == max) {\n h = 2 + (b - r) / delta;\n } else {\n h = 4 + (r - g) / delta;\n }\n h /= 6;\n if (h < 0) {\n h += 1;\n }\n\n return {\n h: h * 360,\n s: s,\n v: max / 255\n };\n },\n\n rgb_to_hex: function(r, g, b) {\n var hex = this.hex_with_component(0, 2, r);\n hex = this.hex_with_component(hex, 1, g);\n hex = this.hex_with_component(hex, 0, b);\n return hex;\n },\n\n component_from_hex: function(hex, componentIndex) {\n return (hex >> (componentIndex * 8)) & 0xFF;\n },\n\n hex_with_component: function(hex, componentIndex, value) {\n return value << (tmpComponent = componentIndex * 8) | (hex & ~ (0xFF << tmpComponent));\n }\n\n }\n\n})(),\ndat.color.toString,\ndat.utils.common);\n\n\n//////////////////\n// WEBPACK FOOTER\n// ./node_modules/dat-gui/vendor/dat.color.js\n// module id = 28\n// module chunks = 0","import {vec3, vec4} from 'gl-matrix';\r\nimport Drawable from '../rendering/gl/Drawable';\r\nimport {gl} from '../globals';\r\n\r\nclass Icosphere extends Drawable {\r\n buffer: ArrayBuffer;\r\n indices: Uint32Array;\r\n positions: Float32Array;\r\n normals: Float32Array;\r\n center: vec4;\r\n\r\n constructor(center: vec3, public radius: number, public subdivisions: number) {\r\n super(); // Call the constructor of the super class. This is required.\r\n this.center = vec4.fromValues(center[0], center[1], center[2], 1);\r\n }\r\n\r\n create() {\r\n const X = 0.525731112119133606;\r\n const Z = 0.850650808352039932;\r\n const N = 0;\r\n\r\n let maxIndexCount = 20 * Math.pow(4, this.subdivisions);\r\n let maxVertexCount = 10 * Math.pow(4, this.subdivisions) + 2;\r\n\r\n // Create buffers to back geometry data\r\n // Index data will ping pong back and forth between buffer0 and buffer1 during creation\r\n // All data will be in buffer0 at the end\r\n const buffer0 = new ArrayBuffer(\r\n maxIndexCount * 3 * Uint32Array.BYTES_PER_ELEMENT +\r\n maxVertexCount * 4 * Float32Array.BYTES_PER_ELEMENT +\r\n maxVertexCount * 4 * Float32Array.BYTES_PER_ELEMENT\r\n );\r\n const buffer1 = new ArrayBuffer(\r\n maxIndexCount * 3 * Uint32Array.BYTES_PER_ELEMENT\r\n );\r\n const buffers = [buffer0, buffer1];\r\n let b = 0;\r\n\r\n const indexByteOffset = 0;\r\n const vertexByteOffset = maxIndexCount * 3 * Uint32Array.BYTES_PER_ELEMENT;\r\n const normalByteOffset = vertexByteOffset;\r\n const positionByteOffset = vertexByteOffset + maxVertexCount * 4 * Float32Array.BYTES_PER_ELEMENT;\r\n\r\n // Create 3-uint buffer views into the backing buffer to represent triangles\r\n // The C++ analogy to this would be something like:\r\n // triangles[i] = reinterpret_cast*>(&buffer[offset]);\r\n let triangles: Array = new Array(20);\r\n let nextTriangles: Array = new Array();\r\n for (let i = 0; i < 20; ++i) {\r\n triangles[i] = new Uint32Array(buffers[b], indexByteOffset + i * 3 * Uint32Array.BYTES_PER_ELEMENT, 3);\r\n }\r\n\r\n // Create 3-float buffer views into the backing buffer to represent positions\r\n let vertices: Array = new Array(12);\r\n for (let i = 0; i < 12; ++i) {\r\n vertices[i] = new Float32Array(buffer0, vertexByteOffset + i * 4 * Float32Array.BYTES_PER_ELEMENT, 4);\r\n }\r\n\r\n // Initialize normals for a 20-sided icosahedron\r\n vertices[0].set([ -X,N,Z,0 ]);\r\n vertices[1].set([ X,N,Z,0 ]);\r\n vertices[2].set([ -X,N,-Z,0 ]);\r\n vertices[3].set([ X,N,-Z,0 ]);\r\n vertices[4].set([ N,Z,X,0 ]);\r\n vertices[5].set([ N,Z,-X,0 ]);\r\n vertices[6].set([ N,-Z,X,0 ]);\r\n vertices[7].set([ N,-Z,-X,0 ]);\r\n vertices[8].set([ Z,X,N,0 ]);\r\n vertices[9].set([ -Z,X, N,0 ]);\r\n vertices[10].set([ Z,-X,N,0 ]);\r\n vertices[11].set([ -Z,-X,N,0 ]);\r\n\r\n // Initialize indices for a 20-sided icosahedron\r\n triangles[0].set([ 0,4,1 ]);\r\n triangles[1].set([ 0,9,4 ]);\r\n triangles[2].set([ 9,5,4 ]);\r\n triangles[3].set([ 4,5,8 ]);\r\n triangles[4].set([ 4,8,1 ]);\r\n triangles[5].set([ 8,10,1 ]);\r\n triangles[6].set([ 8,3,10 ]);\r\n triangles[7].set([ 5,3,8 ]);\r\n triangles[8].set([ 5,2,3 ]);\r\n triangles[9].set([ 2,7,3 ]);\r\n triangles[10].set([ 7,10,3 ]);\r\n triangles[11].set([ 7,6,10 ]);\r\n triangles[12].set([ 7,11,6 ]);\r\n triangles[13].set([ 11,0,6 ]);\r\n triangles[14].set([ 0,1,6 ],);\r\n triangles[15].set([ 6,1,10 ]);\r\n triangles[16].set([ 9,0,11 ]);\r\n triangles[17].set([ 9,11,2 ]);\r\n triangles[18].set([ 9,2,5 ]);\r\n triangles[19].set([ 7,2,11 ]);\r\n\r\n // This loop subdivides the icosahedron\r\n for (let s = 0; s < this.subdivisions; ++s) {\r\n b = 1 - b;\r\n nextTriangles.length = triangles.length * 4;\r\n let triangleIdx = 0;\r\n\r\n // edgeMap maps a pair of vertex indices to a vertex index at their midpoint\r\n // The function `mid` will get that midpoint vertex if it has already been created\r\n // or it will create the vertex and add it to the map\r\n let edgeMap: Map = new Map();\r\n function mid(v0: number, v1: number): number {\r\n let key = [v0, v1].sort().join('_');\r\n if (!edgeMap.has(key)) {\r\n let midpoint = new Float32Array(buffer0, vertexByteOffset + vertices.length * 4 * Float32Array.BYTES_PER_ELEMENT, 4);\r\n vec4.add(midpoint, vertices[v0], vertices[v1]);\r\n vec4.normalize(midpoint, midpoint);\r\n edgeMap.set(key, vertices.length);\r\n vertices.push(midpoint);\r\n }\r\n return edgeMap.get(key);\r\n }\r\n\r\n for (let t = 0; t < triangles.length; ++t) {\r\n let v0 = triangles[t][0];\r\n let v1 = triangles[t][1];\r\n let v2 = triangles[t][2];\r\n let v3 = mid(v0, v1); // Get or create a vertex between these two vertices\r\n let v4 = mid(v1, v2);\r\n let v5 = mid(v2, v0);\r\n\r\n let t0 = nextTriangles[triangleIdx] = new Uint32Array(buffers[b], indexByteOffset + (triangleIdx++) * 3 * Uint32Array.BYTES_PER_ELEMENT, 3);\r\n let t1 = nextTriangles[triangleIdx] = new Uint32Array(buffers[b], indexByteOffset + (triangleIdx++) * 3 * Uint32Array.BYTES_PER_ELEMENT, 3);\r\n let t2 = nextTriangles[triangleIdx] = new Uint32Array(buffers[b], indexByteOffset + (triangleIdx++) * 3 * Uint32Array.BYTES_PER_ELEMENT, 3);\r\n let t3 = nextTriangles[triangleIdx] = new Uint32Array(buffers[b], indexByteOffset + (triangleIdx++) * 3 * Uint32Array.BYTES_PER_ELEMENT, 3);\r\n\r\n let triangleOffset = nextTriangles.length;\r\n t0.set([v0, v3, v5]);\r\n t1.set([v3, v4, v5]);\r\n t2.set([v3, v1, v4]);\r\n t3.set([v5, v4, v2]);\r\n }\r\n\r\n // swap buffers\r\n let temp = triangles;\r\n triangles = nextTriangles;\r\n nextTriangles = temp;\r\n }\r\n\r\n if (b === 1) {\r\n // if indices did not end up in buffer0, copy them there now\r\n let temp0 = new Uint32Array(buffer0, 0, 3 * triangles.length);\r\n let temp1 = new Uint32Array(buffer1, 0, 3 * triangles.length);\r\n temp0.set(temp1);\r\n }\r\n\r\n // Populate one position for each normal\r\n for (let i = 0; i < vertices.length; ++i) {\r\n let pos = new Float32Array(buffer0, positionByteOffset + i * 4 * Float32Array.BYTES_PER_ELEMENT, 4);\r\n vec4.scaleAndAdd(pos, this.center, vertices[i], this.radius);\r\n }\r\n\r\n this.buffer = buffer0;\r\n this.indices = new Uint32Array(this.buffer, indexByteOffset, triangles.length * 3);\r\n this.normals = new Float32Array(this.buffer, normalByteOffset, vertices.length * 4);\r\n this.positions = new Float32Array(this.buffer, positionByteOffset, vertices.length * 4);\r\n\r\n this.generateIdx();\r\n this.generatePos();\r\n this.generateNor();\r\n\r\n this.count = this.indices.length;\r\n gl.bindBuffer(gl.ELEMENT_ARRAY_BUFFER, this.bufIdx);\r\n gl.bufferData(gl.ELEMENT_ARRAY_BUFFER, this.indices, gl.STATIC_DRAW);\r\n\r\n gl.bindBuffer(gl.ARRAY_BUFFER, this.bufNor);\r\n gl.bufferData(gl.ARRAY_BUFFER, this.normals, gl.STATIC_DRAW);\r\n\r\n gl.bindBuffer(gl.ARRAY_BUFFER, this.bufPos);\r\n gl.bufferData(gl.ARRAY_BUFFER, this.positions, gl.STATIC_DRAW);\r\n\r\n console.log(`Created icosphere with ${vertices.length} vertices`);\r\n }\r\n};\r\n\r\nexport default Icosphere;\r\n\n\n\n// WEBPACK FOOTER //\n// ./src/geometry/Icosphere.ts","import {vec3, vec4} from 'gl-matrix';\r\nimport Drawable from '../rendering/gl/Drawable';\r\nimport {gl} from '../globals';\r\n\r\nclass Square extends Drawable {\r\n indices: Uint32Array;\r\n positions: Float32Array;\r\n normals: Float32Array;\r\n center: vec4;\r\n\r\n constructor(center: vec3) {\r\n super(); // Call the constructor of the super class. This is required.\r\n this.center = vec4.fromValues(center[0], center[1], center[2], 1);\r\n }\r\n\r\n create() {\r\n\r\n this.indices = new Uint32Array([0, 1, 2,\r\n 0, 2, 3]);\r\n this.normals = new Float32Array([0, 0, 1, 0,\r\n 0, 0, 1, 0,\r\n 0, 0, 1, 0,\r\n 0, 0, 1, 0]);\r\n this.positions = new Float32Array([-1, -1, 0, 1,\r\n 1, -1, 0, 1,\r\n 1, 1, 0, 1,\r\n -1, 1, 0, 1]);\r\n\r\n this.generateIdx();\r\n this.generatePos();\r\n this.generateNor();\r\n\r\n this.count = this.indices.length;\r\n gl.bindBuffer(gl.ELEMENT_ARRAY_BUFFER, this.bufIdx);\r\n gl.bufferData(gl.ELEMENT_ARRAY_BUFFER, this.indices, gl.STATIC_DRAW);\r\n\r\n gl.bindBuffer(gl.ARRAY_BUFFER, this.bufNor);\r\n gl.bufferData(gl.ARRAY_BUFFER, this.normals, gl.STATIC_DRAW);\r\n\r\n gl.bindBuffer(gl.ARRAY_BUFFER, this.bufPos);\r\n gl.bufferData(gl.ARRAY_BUFFER, this.positions, gl.STATIC_DRAW);\r\n\r\n console.log(`Created square`);\r\n }\r\n};\r\n\r\nexport default Square;\r\n\n\n\n// WEBPACK FOOTER //\n// ./src/geometry/Square.ts","import {mat4, vec4} from 'gl-matrix';\r\nimport Drawable from './Drawable';\r\nimport Camera from '../../Camera';\r\nimport {gl} from '../../globals';\r\nimport ShaderProgram from './ShaderProgram';\r\n\r\n// In this file, `gl` is accessible because it is imported above\r\nclass OpenGLRenderer {\r\n constructor(public canvas: HTMLCanvasElement) {\r\n }\r\n\r\n setClearColor(r: number, g: number, b: number, a: number) {\r\n gl.clearColor(r, g, b, a);\r\n }\r\n\r\n setSize(width: number, height: number) {\r\n this.canvas.width = width;\r\n this.canvas.height = height;\r\n }\r\n\r\n clear() {\r\n gl.clear(gl.COLOR_BUFFER_BIT | gl.DEPTH_BUFFER_BIT);\r\n }\r\n\r\n render(camera: Camera, prog: ShaderProgram, drawables: Array) {\r\n let model = mat4.create();\r\n let viewProj = mat4.create();\r\n let color = vec4.fromValues(1, 0, 0, 1);\r\n\r\n mat4.identity(model);\r\n mat4.multiply(viewProj, camera.projectionMatrix, camera.viewMatrix);\r\n prog.setModelMatrix(model);\r\n prog.setViewProjMatrix(viewProj);\r\n prog.setGeometryColor(color);\r\n\r\n for (let drawable of drawables) {\r\n prog.draw(drawable);\r\n }\r\n }\r\n};\r\n\r\nexport default OpenGLRenderer;\r\n\n\n\n// WEBPACK FOOTER //\n// ./src/rendering/gl/OpenGLRenderer.ts","import * as CameraControls from '3d-view-controls';\r\nimport {vec3, mat4} from 'gl-matrix';\r\n\r\nclass Camera {\r\n controls: any;\r\n projectionMatrix: mat4 = mat4.create();\r\n viewMatrix: mat4 = mat4.create();\r\n fovy: number = 45;\r\n aspectRatio: number = 1;\r\n near: number = 0.1;\r\n far: number = 1000;\r\n position: vec3 = vec3.create();\r\n direction: vec3 = vec3.create();\r\n target: vec3 = vec3.create();\r\n up: vec3 = vec3.create();\r\n\r\n constructor(position: vec3, target: vec3) {\r\n this.controls = CameraControls(document.getElementById('canvas'), {\r\n eye: position,\r\n center: target,\r\n });\r\n vec3.add(this.target, this.position, this.direction);\r\n mat4.lookAt(this.viewMatrix, this.controls.eye, this.controls.center, this.controls.up);\r\n }\r\n\r\n setAspectRatio(aspectRatio: number) {\r\n this.aspectRatio = aspectRatio;\r\n }\r\n\r\n updateProjectionMatrix() {\r\n mat4.perspective(this.projectionMatrix, this.fovy, this.aspectRatio, this.near, this.far);\r\n }\r\n\r\n update() {\r\n this.controls.tick();\r\n vec3.add(this.target, this.position, this.direction);\r\n mat4.lookAt(this.viewMatrix, this.controls.eye, this.controls.center, this.controls.up);\r\n }\r\n};\r\n\r\nexport default Camera;\r\n\n\n\n// WEBPACK FOOTER //\n// ./src/Camera.ts","'use strict'\r\n\r\nmodule.exports = createCamera\r\n\r\nvar now = require('right-now')\r\nvar createView = require('3d-view')\r\nvar mouseChange = require('mouse-change')\r\nvar mouseWheel = require('mouse-wheel')\r\nvar mouseOffset = require('mouse-event-offset')\r\n\r\nfunction createCamera(element, options) {\r\n element = element || document.body\r\n options = options || {}\r\n\r\n var limits = [ 0.01, Infinity ]\r\n if('distanceLimits' in options) {\r\n limits[0] = options.distanceLimits[0]\r\n limits[1] = options.distanceLimits[1]\r\n }\r\n if('zoomMin' in options) {\r\n limits[0] = options.zoomMin\r\n }\r\n if('zoomMax' in options) {\r\n limits[1] = options.zoomMax\r\n }\r\n\r\n var view = createView({\r\n center: options.center || [0,0,0],\r\n up: options.up || [0,1,0],\r\n eye: options.eye || [0,0,10],\r\n mode: options.mode || 'orbit',\r\n distanceLimits: limits\r\n })\r\n\r\n var pmatrix = [0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0]\r\n var distance = 0.0\r\n var width = element.clientWidth\r\n var height = element.clientHeight\r\n\r\n var camera = {\r\n view: view,\r\n element: element,\r\n delay: options.delay || 16,\r\n rotateSpeed: options.rotateSpeed || 1,\r\n zoomSpeed: options.zoomSpeed || 1,\r\n translateSpeed: options.translateSpeed || 1,\r\n flipX: !!options.flipX,\r\n flipY: !!options.flipY,\r\n modes: view.modes,\r\n tick: function() {\r\n var t = now()\r\n var delay = this.delay\r\n view.idle(t-delay)\r\n view.flush(t-(100+delay*2))\r\n var ctime = t - 2 * delay\r\n view.recalcMatrix(ctime)\r\n var allEqual = true\r\n var matrix = view.computedMatrix\r\n for(var i=0; i<16; ++i) {\r\n allEqual = allEqual && (pmatrix[i] === matrix[i])\r\n pmatrix[i] = matrix[i]\r\n }\r\n var sizeChanged =\r\n element.clientWidth === width &&\r\n element.clientHeight === height\r\n width = element.clientWidth\r\n height = element.clientHeight\r\n if(allEqual) {\r\n return !sizeChanged\r\n }\r\n distance = Math.exp(view.computedRadius[0])\r\n return true\r\n },\r\n lookAt: function(center, eye, up) {\r\n view.lookAt(view.lastT(), center, eye, up)\r\n },\r\n rotate: function(pitch, yaw, roll) {\r\n view.rotate(view.lastT(), pitch, yaw, roll)\r\n },\r\n pan: function(dx, dy, dz) {\r\n view.pan(view.lastT(), dx, dy, dz)\r\n },\r\n translate: function(dx, dy, dz) {\r\n view.translate(view.lastT(), dx, dy, dz)\r\n }\r\n }\r\n\r\n Object.defineProperties(camera, {\r\n matrix: {\r\n get: function() {\r\n return view.computedMatrix\r\n },\r\n set: function(mat) {\r\n view.setMatrix(view.lastT(), mat)\r\n return view.computedMatrix\r\n },\r\n enumerable: true\r\n },\r\n mode: {\r\n get: function() {\r\n return view.getMode()\r\n },\r\n set: function(mode) {\r\n view.setMode(mode)\r\n return view.getMode()\r\n },\r\n enumerable: true\r\n },\r\n center: {\r\n get: function() {\r\n return view.computedCenter\r\n },\r\n set: function(ncenter) {\r\n view.lookAt(view.lastT(), ncenter)\r\n return view.computedCenter\r\n },\r\n enumerable: true\r\n },\r\n eye: {\r\n get: function() {\r\n return view.computedEye\r\n },\r\n set: function(neye) {\r\n view.lookAt(view.lastT(), null, neye)\r\n return view.computedEye\r\n },\r\n enumerable: true\r\n },\r\n up: {\r\n get: function() {\r\n return view.computedUp\r\n },\r\n set: function(nup) {\r\n view.lookAt(view.lastT(), null, null, nup)\r\n return view.computedUp\r\n },\r\n enumerable: true\r\n },\r\n distance: {\r\n get: function() {\r\n return distance\r\n },\r\n set: function(d) {\r\n view.setDistance(view.lastT(), d)\r\n return d\r\n },\r\n enumerable: true\r\n },\r\n distanceLimits: {\r\n get: function() {\r\n return view.getDistanceLimits(limits)\r\n },\r\n set: function(v) {\r\n view.setDistanceLimits(v)\r\n return v\r\n },\r\n enumerable: true\r\n }\r\n })\r\n\r\n element.addEventListener('contextmenu', function(ev) {\r\n ev.preventDefault()\r\n return false\r\n })\r\n\r\n var lastX = 0, lastY = 0, lastMods = {shift: false, control: false, alt: false, meta: false}\r\n mouseChange(element, handleInteraction)\r\n\r\n //enable simple touch interactions\r\n element.addEventListener('touchstart', function (ev) {\r\n var xy = mouseOffset(ev.changedTouches[0], element)\r\n handleInteraction(0, xy[0], xy[1], lastMods)\r\n handleInteraction(1, xy[0], xy[1], lastMods)\r\n })\r\n element.addEventListener('touchmove', function (ev) {\r\n var xy = mouseOffset(ev.changedTouches[0], element)\r\n handleInteraction(1, xy[0], xy[1], lastMods)\r\n })\r\n element.addEventListener('touchend', function (ev) {\r\n var xy = mouseOffset(ev.changedTouches[0], element)\r\n handleInteraction(0, lastX, lastY, lastMods)\r\n })\r\n\r\n function handleInteraction (buttons, x, y, mods) {\r\n var scale = 1.0 / element.clientHeight\r\n var dx = scale * (x - lastX)\r\n var dy = scale * (y - lastY)\r\n\r\n var flipX = camera.flipX ? 1 : -1\r\n var flipY = camera.flipY ? 1 : -1\r\n\r\n var drot = Math.PI * camera.rotateSpeed\r\n\r\n var t = now()\r\n\r\n if(buttons & 1) {\r\n if(mods.shift) {\r\n view.rotate(t, 0, 0, -dx * drot)\r\n } else {\r\n view.rotate(t, flipX * drot * dx, -flipY * drot * dy, 0)\r\n }\r\n } else if(buttons & 2) {\r\n view.pan(t, -camera.translateSpeed * dx * distance, camera.translateSpeed * dy * distance, 0)\r\n } else if(buttons & 4) {\r\n var kzoom = camera.zoomSpeed * dy / window.innerHeight * (t - view.lastT()) * 50.0\r\n view.pan(t, 0, 0, distance * (Math.exp(kzoom) - 1))\r\n }\r\n\r\n lastX = x\r\n lastY = y\r\n lastMods = mods\r\n }\r\n\r\n mouseWheel(element, function(dx, dy, dz) {\r\n var flipX = camera.flipX ? 1 : -1\r\n var flipY = camera.flipY ? 1 : -1\r\n var t = now()\r\n if(Math.abs(dx) > Math.abs(dy)) {\r\n view.rotate(t, 0, 0, -dx * flipX * Math.PI * camera.rotateSpeed / window.innerWidth)\r\n } else {\r\n var kzoom = camera.zoomSpeed * flipY * dy / window.innerHeight * (t - view.lastT()) / 100.0\r\n view.pan(t, 0, 0, distance * (Math.exp(kzoom) - 1))\r\n }\r\n }, true)\r\n\r\n return camera\r\n}\r\n\n\n\n//////////////////\n// WEBPACK FOOTER\n// ./node_modules/3d-view-controls/camera.js\n// module id = 33\n// module chunks = 0","module.exports =\n global.performance &&\n global.performance.now ? function now() {\n return performance.now()\n } : Date.now || function now() {\n return +new Date\n }\n\n\n\n//////////////////\n// WEBPACK FOOTER\n// ./node_modules/right-now/browser.js\n// module id = 34\n// module chunks = 0","var g;\r\n\r\n// This works in non-strict mode\r\ng = (function() {\r\n\treturn this;\r\n})();\r\n\r\ntry {\r\n\t// This works if eval is allowed (see CSP)\r\n\tg = g || Function(\"return this\")() || (1,eval)(\"this\");\r\n} catch(e) {\r\n\t// This works if the window reference is available\r\n\tif(typeof window === \"object\")\r\n\t\tg = window;\r\n}\r\n\r\n// g can still be undefined, but nothing to do about it...\r\n// We return undefined, instead of nothing here, so it's\r\n// easier to handle this case. if(!global) { ...}\r\n\r\nmodule.exports = g;\r\n\n\n\n//////////////////\n// WEBPACK FOOTER\n// (webpack)/buildin/global.js\n// module id = 35\n// module chunks = 0","'use strict'\n\nmodule.exports = createViewController\n\nvar createTurntable = require('turntable-camera-controller')\nvar createOrbit = require('orbit-camera-controller')\nvar createMatrix = require('matrix-camera-controller')\n\nfunction ViewController(controllers, mode) {\n this._controllerNames = Object.keys(controllers)\n this._controllerList = this._controllerNames.map(function(n) {\n return controllers[n]\n })\n this._mode = mode\n this._active = controllers[mode]\n if(!this._active) {\n this._mode = 'turntable'\n this._active = controllers.turntable\n }\n this.modes = this._controllerNames\n this.computedMatrix = this._active.computedMatrix\n this.computedEye = this._active.computedEye\n this.computedUp = this._active.computedUp\n this.computedCenter = this._active.computedCenter\n this.computedRadius = this._active.computedRadius\n}\n\nvar proto = ViewController.prototype\n\nvar COMMON_METHODS = [\n ['flush', 1],\n ['idle', 1],\n ['lookAt', 4],\n ['rotate', 4],\n ['pan', 4],\n ['translate', 4],\n ['setMatrix', 2],\n ['setDistanceLimits', 2],\n ['setDistance', 2]\n]\n\nCOMMON_METHODS.forEach(function(method) {\n var name = method[0]\n var argNames = []\n for(var i=0; i Math.max(vy, vz)) {\n u[2] = 1\n } else if(vy > Math.max(vx, vz)) {\n u[0] = 1\n } else {\n u[1] = 1\n }\n\n var vv = 0\n var uv = 0\n for(var i=0; i<3; ++i ) {\n vv += v[i] * v[i]\n uv += u[i] * v[i]\n }\n for(var i=0; i<3; ++i) {\n u[i] -= (uv / vv) * v[i]\n }\n normalize3(u, u)\n return u\n}\n\nfunction TurntableController(zoomMin, zoomMax, center, up, right, radius, theta, phi) {\n this.center = filterVector(center)\n this.up = filterVector(up)\n this.right = filterVector(right)\n this.radius = filterVector([radius])\n this.angle = filterVector([theta, phi])\n this.angle.bounds = [[-Infinity,-Math.PI/2], [Infinity,Math.PI/2]]\n this.setDistanceLimits(zoomMin, zoomMax)\n\n this.computedCenter = this.center.curve(0)\n this.computedUp = this.up.curve(0)\n this.computedRight = this.right.curve(0)\n this.computedRadius = this.radius.curve(0)\n this.computedAngle = this.angle.curve(0)\n this.computedToward = [0,0,0]\n this.computedEye = [0,0,0]\n this.computedMatrix = new Array(16)\n for(var i=0; i<16; ++i) {\n this.computedMatrix[i] = 0.5\n }\n\n this.recalcMatrix(0)\n}\n\nvar proto = TurntableController.prototype\n\nproto.setDistanceLimits = function(minDist, maxDist) {\n if(minDist > 0) {\n minDist = Math.log(minDist)\n } else {\n minDist = -Infinity\n }\n if(maxDist > 0) {\n maxDist = Math.log(maxDist)\n } else {\n maxDist = Infinity\n }\n maxDist = Math.max(maxDist, minDist)\n this.radius.bounds[0][0] = minDist\n this.radius.bounds[1][0] = maxDist\n}\n\nproto.getDistanceLimits = function(out) {\n var bounds = this.radius.bounds[0]\n if(out) {\n out[0] = Math.exp(bounds[0][0])\n out[1] = Math.exp(bounds[1][0])\n return out\n }\n return [ Math.exp(bounds[0][0]), Math.exp(bounds[1][0]) ]\n}\n\nproto.recalcMatrix = function(t) {\n //Recompute curves\n this.center.curve(t)\n this.up.curve(t)\n this.right.curve(t)\n this.radius.curve(t)\n this.angle.curve(t)\n\n //Compute frame for camera matrix\n var up = this.computedUp\n var right = this.computedRight\n var uu = 0.0\n var ur = 0.0\n for(var i=0; i<3; ++i) {\n ur += up[i] * right[i]\n uu += up[i] * up[i]\n }\n var ul = Math.sqrt(uu)\n var rr = 0.0\n for(var i=0; i<3; ++i) {\n right[i] -= up[i] * ur / uu\n rr += right[i] * right[i]\n up[i] /= ul\n }\n var rl = Math.sqrt(rr)\n for(var i=0; i<3; ++i) {\n right[i] /= rl\n }\n\n //Compute toward vector\n var toward = this.computedToward\n cross(toward, up, right)\n normalize3(toward, toward)\n\n //Compute angular parameters\n var radius = Math.exp(this.computedRadius[0])\n var theta = this.computedAngle[0]\n var phi = this.computedAngle[1]\n\n var ctheta = Math.cos(theta)\n var stheta = Math.sin(theta)\n var cphi = Math.cos(phi)\n var sphi = Math.sin(phi)\n\n var center = this.computedCenter\n\n var wx = ctheta * cphi \n var wy = stheta * cphi\n var wz = sphi\n\n var sx = -ctheta * sphi\n var sy = -stheta * sphi\n var sz = cphi\n\n var eye = this.computedEye\n var mat = this.computedMatrix\n for(var i=0; i<3; ++i) {\n var x = wx * right[i] + wy * toward[i] + wz * up[i]\n mat[4*i+1] = sx * right[i] + sy * toward[i] + sz * up[i]\n mat[4*i+2] = x\n mat[4*i+3] = 0.0\n }\n\n var ax = mat[1]\n var ay = mat[5]\n var az = mat[9]\n var bx = mat[2]\n var by = mat[6]\n var bz = mat[10]\n var cx = ay * bz - az * by\n var cy = az * bx - ax * bz\n var cz = ax * by - ay * bx\n var cl = len3(cx, cy, cz)\n cx /= cl\n cy /= cl\n cz /= cl\n mat[0] = cx\n mat[4] = cy\n mat[8] = cz\n\n for(var i=0; i<3; ++i) {\n eye[i] = center[i] + mat[2+4*i]*radius\n }\n\n for(var i=0; i<3; ++i) {\n var rr = 0.0\n for(var j=0; j<3; ++j) {\n rr += mat[i+4*j] * eye[j]\n }\n mat[12+i] = -rr\n }\n mat[15] = 1.0\n}\n\nproto.getMatrix = function(t, result) {\n this.recalcMatrix(t)\n var mat = this.computedMatrix\n if(result) {\n for(var i=0; i<16; ++i) {\n result[i] = mat[i]\n }\n return result\n }\n return mat\n}\n\nvar zAxis = [0,0,0]\nproto.rotate = function(t, dtheta, dphi, droll) {\n this.angle.move(t, dtheta, dphi)\n if(droll) {\n this.recalcMatrix(t)\n\n var mat = this.computedMatrix\n zAxis[0] = mat[2]\n zAxis[1] = mat[6]\n zAxis[2] = mat[10]\n\n var up = this.computedUp\n var right = this.computedRight\n var toward = this.computedToward\n\n for(var i=0; i<3; ++i) {\n mat[4*i] = up[i]\n mat[4*i+1] = right[i]\n mat[4*i+2] = toward[i]\n }\n rotateM(mat, mat, droll, zAxis)\n for(var i=0; i<3; ++i) {\n up[i] = mat[4*i]\n right[i] = mat[4*i+1]\n }\n\n this.up.set(t, up[0], up[1], up[2])\n this.right.set(t, right[0], right[1], right[2])\n }\n}\n\nproto.pan = function(t, dx, dy, dz) {\n dx = dx || 0.0\n dy = dy || 0.0\n dz = dz || 0.0\n\n this.recalcMatrix(t)\n var mat = this.computedMatrix\n\n var dist = Math.exp(this.computedRadius[0])\n\n var ux = mat[1]\n var uy = mat[5]\n var uz = mat[9]\n var ul = len3(ux, uy, uz)\n ux /= ul\n uy /= ul\n uz /= ul\n\n var rx = mat[0]\n var ry = mat[4]\n var rz = mat[8]\n var ru = rx * ux + ry * uy + rz * uz\n rx -= ux * ru\n ry -= uy * ru\n rz -= uz * ru\n var rl = len3(rx, ry, rz)\n rx /= rl\n ry /= rl\n rz /= rl\n\n var vx = rx * dx + ux * dy\n var vy = ry * dx + uy * dy\n var vz = rz * dx + uz * dy\n this.center.move(t, vx, vy, vz)\n\n //Update z-component of radius\n var radius = Math.exp(this.computedRadius[0])\n radius = Math.max(1e-4, radius + dz)\n this.radius.set(t, Math.log(radius))\n}\n\nproto.translate = function(t, dx, dy, dz) {\n this.center.move(t,\n dx||0.0,\n dy||0.0,\n dz||0.0)\n}\n\n//Recenters the coordinate axes\nproto.setMatrix = function(t, mat, axes, noSnap) {\n \n //Get the axes for tare\n var ushift = 1\n if(typeof axes === 'number') {\n ushift = (axes)|0\n } \n if(ushift < 0 || ushift > 3) {\n ushift = 1\n }\n var vshift = (ushift + 2) % 3\n var fshift = (ushift + 1) % 3\n\n //Recompute state for new t value\n if(!mat) { \n this.recalcMatrix(t)\n mat = this.computedMatrix\n }\n\n //Get right and up vectors\n var ux = mat[ushift]\n var uy = mat[ushift+4]\n var uz = mat[ushift+8]\n if(!noSnap) {\n var ul = len3(ux, uy, uz)\n ux /= ul\n uy /= ul\n uz /= ul\n } else {\n var ax = Math.abs(ux)\n var ay = Math.abs(uy)\n var az = Math.abs(uz)\n var am = Math.max(ax,ay,az)\n if(ax === am) {\n ux = (ux < 0) ? -1 : 1\n uy = uz = 0\n } else if(az === am) {\n uz = (uz < 0) ? -1 : 1\n ux = uy = 0\n } else {\n uy = (uy < 0) ? -1 : 1\n ux = uz = 0\n }\n }\n\n var rx = mat[vshift]\n var ry = mat[vshift+4]\n var rz = mat[vshift+8]\n var ru = rx * ux + ry * uy + rz * uz\n rx -= ux * ru\n ry -= uy * ru\n rz -= uz * ru\n var rl = len3(rx, ry, rz)\n rx /= rl\n ry /= rl\n rz /= rl\n \n var fx = uy * rz - uz * ry\n var fy = uz * rx - ux * rz\n var fz = ux * ry - uy * rx\n var fl = len3(fx, fy, fz)\n fx /= fl\n fy /= fl\n fz /= fl\n\n this.center.jump(t, ex, ey, ez)\n this.radius.idle(t)\n this.up.jump(t, ux, uy, uz)\n this.right.jump(t, rx, ry, rz)\n\n var phi, theta\n if(ushift === 2) {\n var cx = mat[1]\n var cy = mat[5]\n var cz = mat[9]\n var cr = cx * rx + cy * ry + cz * rz\n var cf = cx * fx + cy * fy + cz * fz\n if(tu < 0) {\n phi = -Math.PI/2\n } else {\n phi = Math.PI/2\n }\n theta = Math.atan2(cf, cr)\n } else {\n var tx = mat[2]\n var ty = mat[6]\n var tz = mat[10]\n var tu = tx * ux + ty * uy + tz * uz\n var tr = tx * rx + ty * ry + tz * rz\n var tf = tx * fx + ty * fy + tz * fz\n\n phi = Math.asin(clamp1(tu))\n theta = Math.atan2(tf, tr)\n }\n\n this.angle.jump(t, theta, phi)\n\n this.recalcMatrix(t)\n var dx = mat[2]\n var dy = mat[6]\n var dz = mat[10]\n\n var imat = this.computedMatrix\n invert44(imat, mat)\n var w = imat[15]\n var ex = imat[12] / w\n var ey = imat[13] / w\n var ez = imat[14] / w\n\n var gs = Math.exp(this.computedRadius[0])\n this.center.jump(t, ex-dx*gs, ey-dy*gs, ez-dz*gs)\n}\n\nproto.lastT = function() {\n return Math.max(\n this.center.lastT(),\n this.up.lastT(),\n this.right.lastT(),\n this.radius.lastT(),\n this.angle.lastT())\n}\n\nproto.idle = function(t) {\n this.center.idle(t)\n this.up.idle(t)\n this.right.idle(t)\n this.radius.idle(t)\n this.angle.idle(t)\n}\n\nproto.flush = function(t) {\n this.center.flush(t)\n this.up.flush(t)\n this.right.flush(t)\n this.radius.flush(t)\n this.angle.flush(t)\n}\n\nproto.setDistance = function(t, d) {\n if(d > 0) {\n this.radius.set(t, Math.log(d))\n }\n}\n\nproto.lookAt = function(t, eye, center, up) {\n this.recalcMatrix(t)\n\n eye = eye || this.computedEye\n center = center || this.computedCenter\n up = up || this.computedUp\n\n var ux = up[0]\n var uy = up[1]\n var uz = up[2]\n var ul = len3(ux, uy, uz)\n if(ul < 1e-6) {\n return\n }\n ux /= ul\n uy /= ul\n uz /= ul\n\n var tx = eye[0] - center[0]\n var ty = eye[1] - center[1]\n var tz = eye[2] - center[2]\n var tl = len3(tx, ty, tz)\n if(tl < 1e-6) {\n return\n }\n tx /= tl\n ty /= tl\n tz /= tl\n\n var right = this.computedRight\n var rx = right[0]\n var ry = right[1]\n var rz = right[2]\n var ru = ux*rx + uy*ry + uz*rz\n rx -= ru * ux\n ry -= ru * uy\n rz -= ru * uz\n var rl = len3(rx, ry, rz)\n\n if(rl < 0.01) {\n rx = uy * tz - uz * ty\n ry = uz * tx - ux * tz\n rz = ux * ty - uy * tx\n rl = len3(rx, ry, rz)\n if(rl < 1e-6) {\n return\n }\n }\n rx /= rl\n ry /= rl\n rz /= rl\n\n this.up.set(t, ux, uy, uz)\n this.right.set(t, rx, ry, rz)\n this.center.set(t, center[0], center[1], center[2])\n this.radius.set(t, Math.log(tl))\n\n var fx = uy * rz - uz * ry\n var fy = uz * rx - ux * rz\n var fz = ux * ry - uy * rx\n var fl = len3(fx, fy, fz)\n fx /= fl\n fy /= fl\n fz /= fl\n\n var tu = ux*tx + uy*ty + uz*tz\n var tr = rx*tx + ry*ty + rz*tz\n var tf = fx*tx + fy*ty + fz*tz\n\n var phi = Math.asin(clamp1(tu))\n var theta = Math.atan2(tf, tr)\n\n var angleState = this.angle._state\n var lastTheta = angleState[angleState.length-1]\n var lastPhi = angleState[angleState.length-2]\n lastTheta = lastTheta % (2.0 * Math.PI)\n var dp = Math.abs(lastTheta + 2.0 * Math.PI - theta)\n var d0 = Math.abs(lastTheta - theta)\n var dn = Math.abs(lastTheta - 2.0 * Math.PI - theta)\n if(dp < d0) {\n lastTheta += 2.0 * Math.PI\n }\n if(dn < d0) {\n lastTheta -= 2.0 * Math.PI\n }\n\n this.angle.jump(this.angle.lastT(), lastTheta, lastPhi)\n this.angle.set(t, theta, phi)\n}\n\nfunction createTurntableController(options) {\n options = options || {}\n\n var center = options.center || [0,0,0]\n var up = options.up || [0,1,0]\n var right = options.right || findOrthoPair(up)\n var radius = options.radius || 1.0\n var theta = options.theta || 0.0\n var phi = options.phi || 0.0\n\n center = [].slice.call(center, 0, 3)\n\n up = [].slice.call(up, 0, 3)\n normalize3(up, up)\n\n right = [].slice.call(right, 0, 3)\n normalize3(right, right)\n\n if('eye' in options) {\n var eye = options.eye\n var toward = [\n eye[0]-center[0],\n eye[1]-center[1],\n eye[2]-center[2]\n ]\n cross(right, toward, up)\n if(len3(right[0], right[1], right[2]) < 1e-6) {\n right = findOrthoPair(up)\n } else {\n normalize3(right, right)\n }\n\n radius = len3(toward[0], toward[1], toward[2])\n\n var ut = dot3(up, toward) / radius\n var rt = dot3(right, toward) / radius\n phi = Math.acos(ut)\n theta = Math.acos(rt)\n }\n\n //Use logarithmic coordinates for radius\n radius = Math.log(radius)\n\n //Return the controller\n return new TurntableController(\n options.zoomMin,\n options.zoomMax,\n center,\n up,\n right,\n radius,\n theta,\n phi)\n}\n\n\n//////////////////\n// WEBPACK FOOTER\n// ./node_modules/turntable-camera-controller/turntable.js\n// module id = 37\n// module chunks = 0","\"use strict\"\n\nfunction dcubicHermite(p0, v0, p1, v1, t, f) {\n var dh00 = 6*t*t-6*t,\n dh10 = 3*t*t-4*t + 1,\n dh01 = -6*t*t+6*t,\n dh11 = 3*t*t-2*t\n if(p0.length) {\n if(!f) {\n f = new Array(p0.length)\n }\n for(var i=p0.length-1; i>=0; --i) {\n f[i] = dh00*p0[i] + dh10*v0[i] + dh01*p1[i] + dh11*v1[i]\n }\n return f\n }\n return dh00*p0 + dh10*v0 + dh01*p1[i] + dh11*v1\n}\n\nfunction cubicHermite(p0, v0, p1, v1, t, f) {\n var ti = (t-1), t2 = t*t, ti2 = ti*ti,\n h00 = (1+2*t)*ti2,\n h10 = t*ti2,\n h01 = t2*(3-2*t),\n h11 = t2*ti\n if(p0.length) {\n if(!f) {\n f = new Array(p0.length)\n }\n for(var i=p0.length-1; i>=0; --i) {\n f[i] = h00*p0[i] + h10*v0[i] + h01*p1[i] + h11*v1[i]\n }\n return f\n }\n return h00*p0 + h10*v0 + h01*p1 + h11*v1\n}\n\nmodule.exports = cubicHermite\nmodule.exports.derivative = dcubicHermite\n\n\n//////////////////\n// WEBPACK FOOTER\n// ./node_modules/cubic-hermite/hermite.js\n// module id = 38\n// module chunks = 0","module.exports = rotate;\n\n/**\n * Rotates a mat4 by the given angle\n *\n * @param {mat4} out the receiving matrix\n * @param {mat4} a the matrix to rotate\n * @param {Number} rad the angle to rotate the matrix by\n * @param {vec3} axis the axis to rotate around\n * @returns {mat4} out\n */\nfunction rotate(out, a, rad, axis) {\n var x = axis[0], y = axis[1], z = axis[2],\n len = Math.sqrt(x * x + y * y + z * z),\n s, c, t,\n a00, a01, a02, a03,\n a10, a11, a12, a13,\n a20, a21, a22, a23,\n b00, b01, b02,\n b10, b11, b12,\n b20, b21, b22;\n\n if (Math.abs(len) < 0.000001) { return null; }\n \n len = 1 / len;\n x *= len;\n y *= len;\n z *= len;\n\n s = Math.sin(rad);\n c = Math.cos(rad);\n t = 1 - c;\n\n a00 = a[0]; a01 = a[1]; a02 = a[2]; a03 = a[3];\n a10 = a[4]; a11 = a[5]; a12 = a[6]; a13 = a[7];\n a20 = a[8]; a21 = a[9]; a22 = a[10]; a23 = a[11];\n\n // Construct the elements of the rotation matrix\n b00 = x * x * t + c; b01 = y * x * t + z * s; b02 = z * x * t - y * s;\n b10 = x * y * t - z * s; b11 = y * y * t + c; b12 = z * y * t + x * s;\n b20 = x * z * t + y * s; b21 = y * z * t - x * s; b22 = z * z * t + c;\n\n // Perform rotation-specific matrix multiplication\n out[0] = a00 * b00 + a10 * b01 + a20 * b02;\n out[1] = a01 * b00 + a11 * b01 + a21 * b02;\n out[2] = a02 * b00 + a12 * b01 + a22 * b02;\n out[3] = a03 * b00 + a13 * b01 + a23 * b02;\n out[4] = a00 * b10 + a10 * b11 + a20 * b12;\n out[5] = a01 * b10 + a11 * b11 + a21 * b12;\n out[6] = a02 * b10 + a12 * b11 + a22 * b12;\n out[7] = a03 * b10 + a13 * b11 + a23 * b12;\n out[8] = a00 * b20 + a10 * b21 + a20 * b22;\n out[9] = a01 * b20 + a11 * b21 + a21 * b22;\n out[10] = a02 * b20 + a12 * b21 + a22 * b22;\n out[11] = a03 * b20 + a13 * b21 + a23 * b22;\n\n if (a !== out) { // If the source and destination differ, copy the unchanged last row\n out[12] = a[12];\n out[13] = a[13];\n out[14] = a[14];\n out[15] = a[15];\n }\n return out;\n};\n\n\n//////////////////\n// WEBPACK FOOTER\n// ./node_modules/gl-mat4/rotate.js\n// module id = 39\n// module chunks = 0","'use strict'\n\nmodule.exports = createOrbitController\n\nvar filterVector = require('filtered-vector')\nvar lookAt = require('gl-mat4/lookAt')\nvar mat4FromQuat = require('gl-mat4/fromQuat')\nvar invert44 = require('gl-mat4/invert')\nvar quatFromFrame = require('./lib/quatFromFrame')\n\nfunction len3(x,y,z) {\n return Math.sqrt(Math.pow(x,2) + Math.pow(y,2) + Math.pow(z,2))\n}\n\nfunction len4(w,x,y,z) {\n return Math.sqrt(Math.pow(w,2) + Math.pow(x,2) + Math.pow(y,2) + Math.pow(z,2))\n}\n\nfunction normalize4(out, a) {\n var ax = a[0]\n var ay = a[1]\n var az = a[2]\n var aw = a[3]\n var al = len4(ax, ay, az, aw)\n if(al > 1e-6) {\n out[0] = ax/al\n out[1] = ay/al\n out[2] = az/al\n out[3] = aw/al\n } else {\n out[0] = out[1] = out[2] = 0.0\n out[3] = 1.0\n }\n}\n\nfunction OrbitCameraController(initQuat, initCenter, initRadius) {\n this.radius = filterVector([initRadius])\n this.center = filterVector(initCenter)\n this.rotation = filterVector(initQuat)\n\n this.computedRadius = this.radius.curve(0)\n this.computedCenter = this.center.curve(0)\n this.computedRotation = this.rotation.curve(0)\n this.computedUp = [0.1,0,0]\n this.computedEye = [0.1,0,0]\n this.computedMatrix = [0.1,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0]\n\n this.recalcMatrix(0)\n}\n\nvar proto = OrbitCameraController.prototype\n\nproto.lastT = function() {\n return Math.max(\n this.radius.lastT(),\n this.center.lastT(),\n this.rotation.lastT())\n}\n\nproto.recalcMatrix = function(t) {\n this.radius.curve(t)\n this.center.curve(t)\n this.rotation.curve(t)\n\n var quat = this.computedRotation\n normalize4(quat, quat)\n\n var mat = this.computedMatrix\n mat4FromQuat(mat, quat)\n\n var center = this.computedCenter\n var eye = this.computedEye\n var up = this.computedUp\n var radius = Math.exp(this.computedRadius[0])\n\n eye[0] = center[0] + radius * mat[2]\n eye[1] = center[1] + radius * mat[6]\n eye[2] = center[2] + radius * mat[10]\n up[0] = mat[1]\n up[1] = mat[5]\n up[2] = mat[9]\n\n for(var i=0; i<3; ++i) {\n var rr = 0.0\n for(var j=0; j<3; ++j) {\n rr += mat[i+4*j] * eye[j]\n }\n mat[12+i] = -rr\n }\n}\n\nproto.getMatrix = function(t, result) {\n this.recalcMatrix(t)\n var m = this.computedMatrix\n if(result) {\n for(var i=0; i<16; ++i) {\n result[i] = m[i]\n }\n return result\n }\n return m\n}\n\nproto.idle = function(t) {\n this.center.idle(t)\n this.radius.idle(t)\n this.rotation.idle(t)\n}\n\nproto.flush = function(t) {\n this.center.flush(t)\n this.radius.flush(t)\n this.rotation.flush(t)\n}\n\nproto.pan = function(t, dx, dy, dz) {\n dx = dx || 0.0\n dy = dy || 0.0\n dz = dz || 0.0\n\n this.recalcMatrix(t)\n var mat = this.computedMatrix\n\n var ux = mat[1]\n var uy = mat[5]\n var uz = mat[9]\n var ul = len3(ux, uy, uz)\n ux /= ul\n uy /= ul\n uz /= ul\n\n var rx = mat[0]\n var ry = mat[4]\n var rz = mat[8]\n var ru = rx * ux + ry * uy + rz * uz\n rx -= ux * ru\n ry -= uy * ru\n rz -= uz * ru\n var rl = len3(rx, ry, rz)\n rx /= rl\n ry /= rl\n rz /= rl\n\n var fx = mat[2]\n var fy = mat[6]\n var fz = mat[10]\n var fu = fx * ux + fy * uy + fz * uz\n var fr = fx * rx + fy * ry + fz * rz\n fx -= fu * ux + fr * rx\n fy -= fu * uy + fr * ry\n fz -= fu * uz + fr * rz\n var fl = len3(fx, fy, fz)\n fx /= fl\n fy /= fl\n fz /= fl\n\n var vx = rx * dx + ux * dy\n var vy = ry * dx + uy * dy\n var vz = rz * dx + uz * dy\n\n this.center.move(t, vx, vy, vz)\n\n //Update z-component of radius\n var radius = Math.exp(this.computedRadius[0])\n radius = Math.max(1e-4, radius + dz)\n this.radius.set(t, Math.log(radius))\n}\n\nproto.rotate = function(t, dx, dy, dz) {\n this.recalcMatrix(t)\n\n dx = dx||0.0\n dy = dy||0.0\n\n var mat = this.computedMatrix\n\n var rx = mat[0]\n var ry = mat[4]\n var rz = mat[8]\n\n var ux = mat[1]\n var uy = mat[5]\n var uz = mat[9]\n\n var fx = mat[2]\n var fy = mat[6]\n var fz = mat[10]\n\n var qx = dx * rx + dy * ux\n var qy = dx * ry + dy * uy\n var qz = dx * rz + dy * uz\n\n var bx = -(fy * qz - fz * qy)\n var by = -(fz * qx - fx * qz)\n var bz = -(fx * qy - fy * qx) \n var bw = Math.sqrt(Math.max(0.0, 1.0 - Math.pow(bx,2) - Math.pow(by,2) - Math.pow(bz,2)))\n var bl = len4(bx, by, bz, bw)\n if(bl > 1e-6) {\n bx /= bl\n by /= bl\n bz /= bl\n bw /= bl\n } else {\n bx = by = bz = 0.0\n bw = 1.0\n }\n\n var rotation = this.computedRotation\n var ax = rotation[0]\n var ay = rotation[1]\n var az = rotation[2]\n var aw = rotation[3]\n\n var cx = ax*bw + aw*bx + ay*bz - az*by\n var cy = ay*bw + aw*by + az*bx - ax*bz\n var cz = az*bw + aw*bz + ax*by - ay*bx\n var cw = aw*bw - ax*bx - ay*by - az*bz\n \n //Apply roll\n if(dz) {\n bx = fx\n by = fy\n bz = fz\n var s = Math.sin(dz) / len3(bx, by, bz)\n bx *= s\n by *= s\n bz *= s\n bw = Math.cos(dx)\n cx = cx*bw + cw*bx + cy*bz - cz*by\n cy = cy*bw + cw*by + cz*bx - cx*bz\n cz = cz*bw + cw*bz + cx*by - cy*bx\n cw = cw*bw - cx*bx - cy*by - cz*bz\n }\n\n var cl = len4(cx, cy, cz, cw)\n if(cl > 1e-6) {\n cx /= cl\n cy /= cl\n cz /= cl\n cw /= cl\n } else {\n cx = cy = cz = 0.0\n cw = 1.0\n }\n\n this.rotation.set(t, cx, cy, cz, cw)\n}\n\nproto.lookAt = function(t, eye, center, up) {\n this.recalcMatrix(t)\n\n center = center || this.computedCenter\n eye = eye || this.computedEye\n up = up || this.computedUp\n\n var mat = this.computedMatrix\n lookAt(mat, eye, center, up)\n\n var rotation = this.computedRotation\n quatFromFrame(rotation,\n mat[0], mat[1], mat[2],\n mat[4], mat[5], mat[6],\n mat[8], mat[9], mat[10])\n normalize4(rotation, rotation)\n this.rotation.set(t, rotation[0], rotation[1], rotation[2], rotation[3])\n\n var fl = 0.0\n for(var i=0; i<3; ++i) {\n fl += Math.pow(center[i] - eye[i], 2)\n }\n this.radius.set(t, 0.5 * Math.log(Math.max(fl, 1e-6)))\n\n this.center.set(t, center[0], center[1], center[2])\n}\n\nproto.translate = function(t, dx, dy, dz) {\n this.center.move(t,\n dx||0.0,\n dy||0.0,\n dz||0.0)\n}\n\nproto.setMatrix = function(t, matrix) {\n\n var rotation = this.computedRotation\n quatFromFrame(rotation,\n matrix[0], matrix[1], matrix[2],\n matrix[4], matrix[5], matrix[6],\n matrix[8], matrix[9], matrix[10])\n normalize4(rotation, rotation)\n this.rotation.set(t, rotation[0], rotation[1], rotation[2], rotation[3])\n\n var mat = this.computedMatrix\n invert44(mat, matrix)\n var w = mat[15]\n if(Math.abs(w) > 1e-6) {\n var cx = mat[12]/w\n var cy = mat[13]/w\n var cz = mat[14]/w\n\n this.recalcMatrix(t) \n var r = Math.exp(this.computedRadius[0])\n this.center.set(t, cx-mat[2]*r, cy-mat[6]*r, cz-mat[10]*r)\n this.radius.idle(t)\n } else {\n this.center.idle(t)\n this.radius.idle(t)\n }\n}\n\nproto.setDistance = function(t, d) {\n if(d > 0) {\n this.radius.set(t, Math.log(d))\n }\n}\n\nproto.setDistanceLimits = function(lo, hi) {\n if(lo > 0) {\n lo = Math.log(lo)\n } else {\n lo = -Infinity \n }\n if(hi > 0) {\n hi = Math.log(hi)\n } else {\n hi = Infinity\n }\n hi = Math.max(hi, lo)\n this.radius.bounds[0][0] = lo\n this.radius.bounds[1][0] = hi\n}\n\nproto.getDistanceLimits = function(out) {\n var bounds = this.radius.bounds\n if(out) {\n out[0] = Math.exp(bounds[0][0])\n out[1] = Math.exp(bounds[1][0])\n return out\n }\n return [ Math.exp(bounds[0][0]), Math.exp(bounds[1][0]) ]\n}\n\nproto.toJSON = function() {\n this.recalcMatrix(this.lastT())\n return {\n center: this.computedCenter.slice(),\n rotation: this.computedRotation.slice(),\n distance: Math.log(this.computedRadius[0]),\n zoomMin: this.radius.bounds[0][0],\n zoomMax: this.radius.bounds[1][0]\n }\n}\n\nproto.fromJSON = function(options) {\n var t = this.lastT()\n var c = options.center\n if(c) {\n this.center.set(t, c[0], c[1], c[2])\n }\n var r = options.rotation\n if(r) {\n this.rotation.set(t, r[0], r[1], r[2], r[3])\n }\n var d = options.distance\n if(d && d > 0) {\n this.radius.set(t, Math.log(d))\n }\n this.setDistanceLimits(options.zoomMin, options.zoomMax)\n}\n\nfunction createOrbitController(options) {\n options = options || {}\n var center = options.center || [0,0,0]\n var rotation = options.rotation || [0,0,0,1]\n var radius = options.radius || 1.0\n\n center = [].slice.call(center, 0, 3)\n rotation = [].slice.call(rotation, 0, 4)\n normalize4(rotation, rotation)\n\n var result = new OrbitCameraController(\n rotation,\n center,\n Math.log(radius))\n\n result.setDistanceLimits(options.zoomMin, options.zoomMax)\n\n if('eye' in options || 'up' in options) {\n result.lookAt(0, options.eye, options.center, options.up)\n }\n\n return result\n}\n\n\n//////////////////\n// WEBPACK FOOTER\n// ./node_modules/orbit-camera-controller/orbit.js\n// module id = 40\n// module chunks = 0","module.exports = fromQuat;\n\n/**\n * Creates a matrix from a quaternion rotation.\n *\n * @param {mat4} out mat4 receiving operation result\n * @param {quat4} q Rotation quaternion\n * @returns {mat4} out\n */\nfunction fromQuat(out, q) {\n var x = q[0], y = q[1], z = q[2], w = q[3],\n x2 = x + x,\n y2 = y + y,\n z2 = z + z,\n\n xx = x * x2,\n yx = y * x2,\n yy = y * y2,\n zx = z * x2,\n zy = z * y2,\n zz = z * z2,\n wx = w * x2,\n wy = w * y2,\n wz = w * z2;\n\n out[0] = 1 - yy - zz;\n out[1] = yx + wz;\n out[2] = zx - wy;\n out[3] = 0;\n\n out[4] = yx - wz;\n out[5] = 1 - xx - zz;\n out[6] = zy + wx;\n out[7] = 0;\n\n out[8] = zx + wy;\n out[9] = zy - wx;\n out[10] = 1 - xx - yy;\n out[11] = 0;\n\n out[12] = 0;\n out[13] = 0;\n out[14] = 0;\n out[15] = 1;\n\n return out;\n};\n\n\n//////////////////\n// WEBPACK FOOTER\n// ./node_modules/gl-mat4/fromQuat.js\n// module id = 41\n// module chunks = 0","'use strict'\n\nmodule.exports = quatFromFrame\n\nfunction quatFromFrame(\n out,\n rx, ry, rz,\n ux, uy, uz,\n fx, fy, fz) {\n var tr = rx + uy + fz\n if(l > 0) {\n var l = Math.sqrt(tr + 1.0)\n out[0] = 0.5 * (uz - fy) / l\n out[1] = 0.5 * (fx - rz) / l\n out[2] = 0.5 * (ry - uy) / l\n out[3] = 0.5 * l\n } else {\n var tf = Math.max(rx, uy, fz)\n var l = Math.sqrt(2 * tf - tr + 1.0)\n if(rx >= tf) {\n //x y z order\n out[0] = 0.5 * l\n out[1] = 0.5 * (ux + ry) / l\n out[2] = 0.5 * (fx + rz) / l\n out[3] = 0.5 * (uz - fy) / l\n } else if(uy >= tf) {\n //y z x order\n out[0] = 0.5 * (ry + ux) / l\n out[1] = 0.5 * l\n out[2] = 0.5 * (fy + uz) / l\n out[3] = 0.5 * (fx - rz) / l\n } else {\n //z x y order\n out[0] = 0.5 * (rz + fx) / l\n out[1] = 0.5 * (uz + fy) / l\n out[2] = 0.5 * l\n out[3] = 0.5 * (ry - ux) / l\n }\n }\n return out\n}\n\n\n//////////////////\n// WEBPACK FOOTER\n// ./node_modules/orbit-camera-controller/lib/quatFromFrame.js\n// module id = 42\n// module chunks = 0","'use strict'\r\n\r\nvar bsearch = require('binary-search-bounds')\r\nvar m4interp = require('mat4-interpolate')\r\nvar invert44 = require('gl-mat4/invert')\r\nvar rotateX = require('gl-mat4/rotateX')\r\nvar rotateY = require('gl-mat4/rotateY')\r\nvar rotateZ = require('gl-mat4/rotateZ')\r\nvar lookAt = require('gl-mat4/lookAt')\r\nvar translate = require('gl-mat4/translate')\r\nvar scale = require('gl-mat4/scale')\r\nvar normalize = require('gl-vec3/normalize')\r\n\r\nvar DEFAULT_CENTER = [0,0,0]\r\n\r\nmodule.exports = createMatrixCameraController\r\n\r\nfunction MatrixCameraController(initialMatrix) {\r\n this._components = initialMatrix.slice()\r\n this._time = [0]\r\n this.prevMatrix = initialMatrix.slice()\r\n this.nextMatrix = initialMatrix.slice()\r\n this.computedMatrix = initialMatrix.slice()\r\n this.computedInverse = initialMatrix.slice()\r\n this.computedEye = [0,0,0]\r\n this.computedUp = [0,0,0]\r\n this.computedCenter = [0,0,0]\r\n this.computedRadius = [0]\r\n this._limits = [-Infinity, Infinity]\r\n}\r\n\r\nvar proto = MatrixCameraController.prototype\r\n\r\nproto.recalcMatrix = function(t) {\r\n var time = this._time\r\n var tidx = bsearch.le(time, t)\r\n var mat = this.computedMatrix\r\n if(tidx < 0) {\r\n return\r\n }\r\n var comps = this._components\r\n if(tidx === time.length-1) {\r\n var ptr = 16*tidx\r\n for(var i=0; i<16; ++i) {\r\n mat[i] = comps[ptr++]\r\n }\r\n } else {\r\n var dt = (time[tidx+1] - time[tidx])\r\n var ptr = 16*tidx\r\n var prev = this.prevMatrix\r\n var allEqual = true\r\n for(var i=0; i<16; ++i) {\r\n prev[i] = comps[ptr++]\r\n }\r\n var next = this.nextMatrix\r\n for(var i=0; i<16; ++i) {\r\n next[i] = comps[ptr++]\r\n allEqual = allEqual && (prev[i] === next[i])\r\n }\r\n if(dt < 1e-6 || allEqual) {\r\n for(var i=0; i<16; ++i) {\r\n mat[i] = prev[i]\r\n }\r\n } else {\r\n m4interp(mat, prev, next, (t - time[tidx])/dt)\r\n }\r\n }\r\n\r\n var up = this.computedUp\r\n up[0] = mat[1]\r\n up[1] = mat[5]\r\n up[2] = mat[9]\r\n normalize(up, up)\r\n\r\n var imat = this.computedInverse\r\n invert44(imat, mat)\r\n var eye = this.computedEye\r\n var w = imat[15]\r\n eye[0] = imat[12]/w\r\n eye[1] = imat[13]/w\r\n eye[2] = imat[14]/w\r\n\r\n var center = this.computedCenter\r\n var radius = Math.exp(this.computedRadius[0])\r\n for(var i=0; i<3; ++i) {\r\n center[i] = eye[i] - mat[2+4*i] * radius\r\n }\r\n}\r\n\r\nproto.idle = function(t) {\r\n if(t < this.lastT()) {\r\n return\r\n }\r\n var mc = this._components\r\n var ptr = mc.length-16\r\n for(var i=0; i<16; ++i) {\r\n mc.push(mc[ptr++])\r\n }\r\n this._time.push(t)\r\n}\r\n\r\nproto.flush = function(t) {\r\n var idx = bsearch.gt(this._time, t) - 2\r\n if(idx < 0) {\r\n return\r\n }\r\n this._time.splice(0, idx)\r\n this._components.splice(0, 16*idx)\r\n}\r\n\r\nproto.lastT = function() {\r\n return this._time[this._time.length-1]\r\n}\r\n\r\nproto.lookAt = function(t, eye, center, up) {\r\n this.recalcMatrix(t)\r\n eye = eye || this.computedEye\r\n center = center || DEFAULT_CENTER\r\n up = up || this.computedUp\r\n this.setMatrix(t, lookAt(this.computedMatrix, eye, center, up))\r\n var d2 = 0.0\r\n for(var i=0; i<3; ++i) {\r\n d2 += Math.pow(center[i] - eye[i], 2)\r\n }\r\n d2 = Math.log(Math.sqrt(d2))\r\n this.computedRadius[0] = d2\r\n}\r\n\r\nproto.rotate = function(t, yaw, pitch, roll) {\r\n this.recalcMatrix(t)\r\n var mat = this.computedInverse\r\n if(yaw) rotateY(mat, mat, yaw)\r\n if(pitch) rotateX(mat, mat, pitch)\r\n if(roll) rotateZ(mat, mat, roll)\r\n this.setMatrix(t, invert44(this.computedMatrix, mat))\r\n}\r\n\r\nvar tvec = [0,0,0]\r\n\r\nproto.pan = function(t, dx, dy, dz) {\r\n tvec[0] = -(dx || 0.0)\r\n tvec[1] = -(dy || 0.0)\r\n tvec[2] = -(dz || 0.0)\r\n this.recalcMatrix(t)\r\n var mat = this.computedInverse\r\n translate(mat, mat, tvec)\r\n this.setMatrix(t, invert44(mat, mat))\r\n}\r\n\r\nproto.translate = function(t, dx, dy, dz) {\r\n tvec[0] = dx || 0.0\r\n tvec[1] = dy || 0.0\r\n tvec[2] = dz || 0.0\r\n this.recalcMatrix(t)\r\n var mat = this.computedMatrix\r\n translate(mat, mat, tvec)\r\n this.setMatrix(t, mat)\r\n}\r\n\r\nproto.setMatrix = function(t, mat) {\r\n if(t < this.lastT()) {\r\n return\r\n }\r\n this._time.push(t)\r\n for(var i=0; i<16; ++i) {\r\n this._components.push(mat[i])\r\n }\r\n}\r\n\r\nproto.setDistance = function(t, d) {\r\n this.computedRadius[0] = d\r\n}\r\n\r\nproto.setDistanceLimits = function(a,b) {\r\n var lim = this._limits\r\n lim[0] = a\r\n lim[1] = b\r\n}\r\n\r\nproto.getDistanceLimits = function(out) {\r\n var lim = this._limits\r\n if(out) {\r\n out[0] = lim[0]\r\n out[1] = lim[1]\r\n return out\r\n }\r\n return lim\r\n}\r\n\r\nfunction createMatrixCameraController(options) {\r\n options = options || {}\r\n var matrix = options.matrix || \r\n [1,0,0,0,\r\n 0,1,0,0,\r\n 0,0,1,0,\r\n 0,0,0,1]\r\n return new MatrixCameraController(matrix)\r\n}\r\n\n\n\n//////////////////\n// WEBPACK FOOTER\n// ./node_modules/matrix-camera-controller/matrix.js\n// module id = 43\n// module chunks = 0","var lerp = require('gl-vec3/lerp')\n\nvar recompose = require('mat4-recompose')\nvar decompose = require('mat4-decompose')\nvar determinant = require('gl-mat4/determinant')\nvar slerp = require('quat-slerp')\n\nvar state0 = state()\nvar state1 = state()\nvar tmp = state()\n\nmodule.exports = interpolate\nfunction interpolate(out, start, end, alpha) {\n if (determinant(start) === 0 || determinant(end) === 0)\n return false\n\n //decompose the start and end matrices into individual components\n var r0 = decompose(start, state0.translate, state0.scale, state0.skew, state0.perspective, state0.quaternion)\n var r1 = decompose(end, state1.translate, state1.scale, state1.skew, state1.perspective, state1.quaternion)\n if (!r0 || !r1)\n return false \n\n\n //now lerp/slerp the start and end components into a temporary lerp(tmptranslate, state0.translate, state1.translate, alpha)\n lerp(tmp.translate, state0.translate, state1.translate, alpha)\n lerp(tmp.skew, state0.skew, state1.skew, alpha)\n lerp(tmp.scale, state0.scale, state1.scale, alpha)\n lerp(tmp.perspective, state0.perspective, state1.perspective, alpha)\n slerp(tmp.quaternion, state0.quaternion, state1.quaternion, alpha)\n\n //and recompose into our 'out' matrix\n recompose(out, tmp.translate, tmp.scale, tmp.skew, tmp.perspective, tmp.quaternion)\n return true\n}\n\nfunction state() {\n return {\n translate: vec3(),\n scale: vec3(1),\n skew: vec3(),\n perspective: vec4(),\n quaternion: vec4()\n }\n}\n\nfunction vec3(n) {\n return [n||0,n||0,n||0]\n}\n\nfunction vec4() {\n return [0,0,0,1]\n}\n\n\n//////////////////\n// WEBPACK FOOTER\n// ./node_modules/mat4-interpolate/index.js\n// module id = 44\n// module chunks = 0","module.exports = lerp;\n\n/**\n * Performs a linear interpolation between two vec3's\n *\n * @param {vec3} out the receiving vector\n * @param {vec3} a the first operand\n * @param {vec3} b the second operand\n * @param {Number} t interpolation amount between the two inputs\n * @returns {vec3} out\n */\nfunction lerp(out, a, b, t) {\n var ax = a[0],\n ay = a[1],\n az = a[2]\n out[0] = ax + t * (b[0] - ax)\n out[1] = ay + t * (b[1] - ay)\n out[2] = az + t * (b[2] - az)\n return out\n}\n\n\n//////////////////\n// WEBPACK FOOTER\n// ./node_modules/gl-vec3/lerp.js\n// module id = 45\n// module chunks = 0","/*\nInput: translation ; a 3 component vector\n scale ; a 3 component vector\n skew ; skew factors XY,XZ,YZ represented as a 3 component vector\n perspective ; a 4 component vector\n quaternion ; a 4 component vector\nOutput: matrix ; a 4x4 matrix\n\nFrom: http://www.w3.org/TR/css3-transforms/#recomposing-to-a-3d-matrix\n*/\n\nvar mat4 = {\n identity: require('gl-mat4/identity'),\n translate: require('gl-mat4/translate'),\n multiply: require('gl-mat4/multiply'),\n create: require('gl-mat4/create'),\n scale: require('gl-mat4/scale'),\n fromRotationTranslation: require('gl-mat4/fromRotationTranslation')\n}\n\nvar rotationMatrix = mat4.create()\nvar temp = mat4.create()\n\nmodule.exports = function recomposeMat4(matrix, translation, scale, skew, perspective, quaternion) {\n mat4.identity(matrix)\n\n //apply translation & rotation\n mat4.fromRotationTranslation(matrix, quaternion, translation)\n\n //apply perspective\n matrix[3] = perspective[0]\n matrix[7] = perspective[1]\n matrix[11] = perspective[2]\n matrix[15] = perspective[3]\n \n // apply skew\n // temp is a identity 4x4 matrix initially\n mat4.identity(temp)\n\n if (skew[2] !== 0) {\n temp[9] = skew[2]\n mat4.multiply(matrix, matrix, temp)\n }\n\n if (skew[1] !== 0) {\n temp[9] = 0\n temp[8] = skew[1]\n mat4.multiply(matrix, matrix, temp)\n }\n\n if (skew[0] !== 0) {\n temp[8] = 0\n temp[4] = skew[0]\n mat4.multiply(matrix, matrix, temp)\n }\n\n //apply scale\n mat4.scale(matrix, matrix, scale)\n return matrix\n}\n\n\n//////////////////\n// WEBPACK FOOTER\n// ./node_modules/mat4-recompose/index.js\n// module id = 46\n// module chunks = 0","module.exports = multiply;\n\n/**\n * Multiplies two mat4's\n *\n * @param {mat4} out the receiving matrix\n * @param {mat4} a the first operand\n * @param {mat4} b the second operand\n * @returns {mat4} out\n */\nfunction multiply(out, a, b) {\n var a00 = a[0], a01 = a[1], a02 = a[2], a03 = a[3],\n a10 = a[4], a11 = a[5], a12 = a[6], a13 = a[7],\n a20 = a[8], a21 = a[9], a22 = a[10], a23 = a[11],\n a30 = a[12], a31 = a[13], a32 = a[14], a33 = a[15];\n\n // Cache only the current line of the second matrix\n var b0 = b[0], b1 = b[1], b2 = b[2], b3 = b[3]; \n out[0] = b0*a00 + b1*a10 + b2*a20 + b3*a30;\n out[1] = b0*a01 + b1*a11 + b2*a21 + b3*a31;\n out[2] = b0*a02 + b1*a12 + b2*a22 + b3*a32;\n out[3] = b0*a03 + b1*a13 + b2*a23 + b3*a33;\n\n b0 = b[4]; b1 = b[5]; b2 = b[6]; b3 = b[7];\n out[4] = b0*a00 + b1*a10 + b2*a20 + b3*a30;\n out[5] = b0*a01 + b1*a11 + b2*a21 + b3*a31;\n out[6] = b0*a02 + b1*a12 + b2*a22 + b3*a32;\n out[7] = b0*a03 + b1*a13 + b2*a23 + b3*a33;\n\n b0 = b[8]; b1 = b[9]; b2 = b[10]; b3 = b[11];\n out[8] = b0*a00 + b1*a10 + b2*a20 + b3*a30;\n out[9] = b0*a01 + b1*a11 + b2*a21 + b3*a31;\n out[10] = b0*a02 + b1*a12 + b2*a22 + b3*a32;\n out[11] = b0*a03 + b1*a13 + b2*a23 + b3*a33;\n\n b0 = b[12]; b1 = b[13]; b2 = b[14]; b3 = b[15];\n out[12] = b0*a00 + b1*a10 + b2*a20 + b3*a30;\n out[13] = b0*a01 + b1*a11 + b2*a21 + b3*a31;\n out[14] = b0*a02 + b1*a12 + b2*a22 + b3*a32;\n out[15] = b0*a03 + b1*a13 + b2*a23 + b3*a33;\n return out;\n};\n\n\n//////////////////\n// WEBPACK FOOTER\n// ./node_modules/gl-mat4/multiply.js\n// module id = 47\n// module chunks = 0","module.exports = fromRotationTranslation;\n\n/**\n * Creates a matrix from a quaternion rotation and vector translation\n * This is equivalent to (but much faster than):\n *\n * mat4.identity(dest);\n * mat4.translate(dest, vec);\n * var quatMat = mat4.create();\n * quat4.toMat4(quat, quatMat);\n * mat4.multiply(dest, quatMat);\n *\n * @param {mat4} out mat4 receiving operation result\n * @param {quat4} q Rotation quaternion\n * @param {vec3} v Translation vector\n * @returns {mat4} out\n */\nfunction fromRotationTranslation(out, q, v) {\n // Quaternion math\n var x = q[0], y = q[1], z = q[2], w = q[3],\n x2 = x + x,\n y2 = y + y,\n z2 = z + z,\n\n xx = x * x2,\n xy = x * y2,\n xz = x * z2,\n yy = y * y2,\n yz = y * z2,\n zz = z * z2,\n wx = w * x2,\n wy = w * y2,\n wz = w * z2;\n\n out[0] = 1 - (yy + zz);\n out[1] = xy + wz;\n out[2] = xz - wy;\n out[3] = 0;\n out[4] = xy - wz;\n out[5] = 1 - (xx + zz);\n out[6] = yz + wx;\n out[7] = 0;\n out[8] = xz + wy;\n out[9] = yz - wx;\n out[10] = 1 - (xx + yy);\n out[11] = 0;\n out[12] = v[0];\n out[13] = v[1];\n out[14] = v[2];\n out[15] = 1;\n \n return out;\n};\n\n\n//////////////////\n// WEBPACK FOOTER\n// ./node_modules/gl-mat4/fromRotationTranslation.js\n// module id = 48\n// module chunks = 0","/*jshint unused:true*/\n/*\nInput: matrix ; a 4x4 matrix\nOutput: translation ; a 3 component vector\n scale ; a 3 component vector\n skew ; skew factors XY,XZ,YZ represented as a 3 component vector\n perspective ; a 4 component vector\n quaternion ; a 4 component vector\nReturns false if the matrix cannot be decomposed, true if it can\n\n\nReferences:\nhttps://github.com/kamicane/matrix3d/blob/master/lib/Matrix3d.js\nhttps://github.com/ChromiumWebApps/chromium/blob/master/ui/gfx/transform_util.cc\nhttp://www.w3.org/TR/css3-transforms/#decomposing-a-3d-matrix\n*/\n\nvar normalize = require('./normalize')\n\nvar create = require('gl-mat4/create')\nvar clone = require('gl-mat4/clone')\nvar determinant = require('gl-mat4/determinant')\nvar invert = require('gl-mat4/invert')\nvar transpose = require('gl-mat4/transpose')\nvar vec3 = {\n length: require('gl-vec3/length'),\n normalize: require('gl-vec3/normalize'),\n dot: require('gl-vec3/dot'),\n cross: require('gl-vec3/cross')\n}\n\nvar tmp = create()\nvar perspectiveMatrix = create()\nvar tmpVec4 = [0, 0, 0, 0]\nvar row = [ [0,0,0], [0,0,0], [0,0,0] ]\nvar pdum3 = [0,0,0]\n\nmodule.exports = function decomposeMat4(matrix, translation, scale, skew, perspective, quaternion) {\n if (!translation) translation = [0,0,0]\n if (!scale) scale = [0,0,0]\n if (!skew) skew = [0,0,0]\n if (!perspective) perspective = [0,0,0,1]\n if (!quaternion) quaternion = [0,0,0,1]\n\n //normalize, if not possible then bail out early\n if (!normalize(tmp, matrix))\n return false\n\n // perspectiveMatrix is used to solve for perspective, but it also provides\n // an easy way to test for singularity of the upper 3x3 component.\n clone(perspectiveMatrix, tmp)\n\n perspectiveMatrix[3] = 0\n perspectiveMatrix[7] = 0\n perspectiveMatrix[11] = 0\n perspectiveMatrix[15] = 1\n\n // If the perspectiveMatrix is not invertible, we are also unable to\n // decompose, so we'll bail early. Constant taken from SkMatrix44::invert.\n if (Math.abs(determinant(perspectiveMatrix) < 1e-8))\n return false\n\n var a03 = tmp[3], a13 = tmp[7], a23 = tmp[11],\n a30 = tmp[12], a31 = tmp[13], a32 = tmp[14], a33 = tmp[15]\n\n // First, isolate perspective.\n if (a03 !== 0 || a13 !== 0 || a23 !== 0) {\n tmpVec4[0] = a03\n tmpVec4[1] = a13\n tmpVec4[2] = a23\n tmpVec4[3] = a33\n\n // Solve the equation by inverting perspectiveMatrix and multiplying\n // rightHandSide by the inverse.\n // resuing the perspectiveMatrix here since it's no longer needed\n var ret = invert(perspectiveMatrix, perspectiveMatrix)\n if (!ret) return false\n transpose(perspectiveMatrix, perspectiveMatrix)\n\n //multiply by transposed inverse perspective matrix, into perspective vec4\n vec4multMat4(perspective, tmpVec4, perspectiveMatrix)\n } else { \n //no perspective\n perspective[0] = perspective[1] = perspective[2] = 0\n perspective[3] = 1\n }\n\n // Next take care of translation\n translation[0] = a30\n translation[1] = a31\n translation[2] = a32\n\n // Now get scale and shear. 'row' is a 3 element array of 3 component vectors\n mat3from4(row, tmp)\n\n // Compute X scale factor and normalize first row.\n scale[0] = vec3.length(row[0])\n vec3.normalize(row[0], row[0])\n\n // Compute XY shear factor and make 2nd row orthogonal to 1st.\n skew[0] = vec3.dot(row[0], row[1])\n combine(row[1], row[1], row[0], 1.0, -skew[0])\n\n // Now, compute Y scale and normalize 2nd row.\n scale[1] = vec3.length(row[1])\n vec3.normalize(row[1], row[1])\n skew[0] /= scale[1]\n\n // Compute XZ and YZ shears, orthogonalize 3rd row\n skew[1] = vec3.dot(row[0], row[2])\n combine(row[2], row[2], row[0], 1.0, -skew[1])\n skew[2] = vec3.dot(row[1], row[2])\n combine(row[2], row[2], row[1], 1.0, -skew[2])\n\n // Next, get Z scale and normalize 3rd row.\n scale[2] = vec3.length(row[2])\n vec3.normalize(row[2], row[2])\n skew[1] /= scale[2]\n skew[2] /= scale[2]\n\n\n // At this point, the matrix (in rows) is orthonormal.\n // Check for a coordinate system flip. If the determinant\n // is -1, then negate the matrix and the scaling factors.\n vec3.cross(pdum3, row[1], row[2])\n if (vec3.dot(row[0], pdum3) < 0) {\n for (var i = 0; i < 3; i++) {\n scale[i] *= -1;\n row[i][0] *= -1\n row[i][1] *= -1\n row[i][2] *= -1\n }\n }\n\n // Now, get the rotations out\n quaternion[0] = 0.5 * Math.sqrt(Math.max(1 + row[0][0] - row[1][1] - row[2][2], 0))\n quaternion[1] = 0.5 * Math.sqrt(Math.max(1 - row[0][0] + row[1][1] - row[2][2], 0))\n quaternion[2] = 0.5 * Math.sqrt(Math.max(1 - row[0][0] - row[1][1] + row[2][2], 0))\n quaternion[3] = 0.5 * Math.sqrt(Math.max(1 + row[0][0] + row[1][1] + row[2][2], 0))\n\n if (row[2][1] > row[1][2])\n quaternion[0] = -quaternion[0]\n if (row[0][2] > row[2][0])\n quaternion[1] = -quaternion[1]\n if (row[1][0] > row[0][1])\n quaternion[2] = -quaternion[2]\n return true\n}\n\n//will be replaced by gl-vec4 eventually\nfunction vec4multMat4(out, a, m) {\n var x = a[0], y = a[1], z = a[2], w = a[3];\n out[0] = m[0] * x + m[4] * y + m[8] * z + m[12] * w;\n out[1] = m[1] * x + m[5] * y + m[9] * z + m[13] * w;\n out[2] = m[2] * x + m[6] * y + m[10] * z + m[14] * w;\n out[3] = m[3] * x + m[7] * y + m[11] * z + m[15] * w;\n return out;\n}\n\n//gets upper-left of a 4x4 matrix into a 3x3 of vectors\nfunction mat3from4(out, mat4x4) {\n out[0][0] = mat4x4[0]\n out[0][1] = mat4x4[1]\n out[0][2] = mat4x4[2]\n \n out[1][0] = mat4x4[4]\n out[1][1] = mat4x4[5]\n out[1][2] = mat4x4[6]\n\n out[2][0] = mat4x4[8]\n out[2][1] = mat4x4[9]\n out[2][2] = mat4x4[10]\n}\n\nfunction combine(out, a, b, scale1, scale2) {\n out[0] = a[0] * scale1 + b[0] * scale2\n out[1] = a[1] * scale1 + b[1] * scale2\n out[2] = a[2] * scale1 + b[2] * scale2\n}\n\n\n//////////////////\n// WEBPACK FOOTER\n// ./node_modules/mat4-decompose/index.js\n// module id = 49\n// module chunks = 0","module.exports = function normalize(out, mat) {\n var m44 = mat[15]\n // Cannot normalize.\n if (m44 === 0) \n return false\n var scale = 1 / m44\n for (var i=0; i<16; i++)\n out[i] = mat[i] * scale\n return true\n}\n\n\n//////////////////\n// WEBPACK FOOTER\n// ./node_modules/mat4-decompose/normalize.js\n// module id = 50\n// module chunks = 0","module.exports = clone;\n\n/**\n * Creates a new mat4 initialized with values from an existing matrix\n *\n * @param {mat4} a matrix to clone\n * @returns {mat4} a new 4x4 matrix\n */\nfunction clone(a) {\n var out = new Float32Array(16);\n out[0] = a[0];\n out[1] = a[1];\n out[2] = a[2];\n out[3] = a[3];\n out[4] = a[4];\n out[5] = a[5];\n out[6] = a[6];\n out[7] = a[7];\n out[8] = a[8];\n out[9] = a[9];\n out[10] = a[10];\n out[11] = a[11];\n out[12] = a[12];\n out[13] = a[13];\n out[14] = a[14];\n out[15] = a[15];\n return out;\n};\n\n\n//////////////////\n// WEBPACK FOOTER\n// ./node_modules/gl-mat4/clone.js\n// module id = 51\n// module chunks = 0","module.exports = transpose;\n\n/**\n * Transpose the values of a mat4\n *\n * @param {mat4} out the receiving matrix\n * @param {mat4} a the source matrix\n * @returns {mat4} out\n */\nfunction transpose(out, a) {\n // If we are transposing ourselves we can skip a few steps but have to cache some values\n if (out === a) {\n var a01 = a[1], a02 = a[2], a03 = a[3],\n a12 = a[6], a13 = a[7],\n a23 = a[11];\n\n out[1] = a[4];\n out[2] = a[8];\n out[3] = a[12];\n out[4] = a01;\n out[6] = a[9];\n out[7] = a[13];\n out[8] = a02;\n out[9] = a12;\n out[11] = a[14];\n out[12] = a03;\n out[13] = a13;\n out[14] = a23;\n } else {\n out[0] = a[0];\n out[1] = a[4];\n out[2] = a[8];\n out[3] = a[12];\n out[4] = a[1];\n out[5] = a[5];\n out[6] = a[9];\n out[7] = a[13];\n out[8] = a[2];\n out[9] = a[6];\n out[10] = a[10];\n out[11] = a[14];\n out[12] = a[3];\n out[13] = a[7];\n out[14] = a[11];\n out[15] = a[15];\n }\n \n return out;\n};\n\n\n//////////////////\n// WEBPACK FOOTER\n// ./node_modules/gl-mat4/transpose.js\n// module id = 52\n// module chunks = 0","module.exports = length;\n\n/**\n * Calculates the length of a vec3\n *\n * @param {vec3} a vector to calculate length of\n * @returns {Number} length of a\n */\nfunction length(a) {\n var x = a[0],\n y = a[1],\n z = a[2]\n return Math.sqrt(x*x + y*y + z*z)\n}\n\n\n//////////////////\n// WEBPACK FOOTER\n// ./node_modules/gl-vec3/length.js\n// module id = 53\n// module chunks = 0","module.exports = require('gl-quat/slerp')\n\n\n//////////////////\n// WEBPACK FOOTER\n// ./node_modules/quat-slerp/index.js\n// module id = 54\n// module chunks = 0","module.exports = slerp\n\n/**\n * Performs a spherical linear interpolation between two quat\n *\n * @param {quat} out the receiving quaternion\n * @param {quat} a the first operand\n * @param {quat} b the second operand\n * @param {Number} t interpolation amount between the two inputs\n * @returns {quat} out\n */\nfunction slerp (out, a, b, t) {\n // benchmarks:\n // http://jsperf.com/quaternion-slerp-implementations\n\n var ax = a[0], ay = a[1], az = a[2], aw = a[3],\n bx = b[0], by = b[1], bz = b[2], bw = b[3]\n\n var omega, cosom, sinom, scale0, scale1\n\n // calc cosine\n cosom = ax * bx + ay * by + az * bz + aw * bw\n // adjust signs (if necessary)\n if (cosom < 0.0) {\n cosom = -cosom\n bx = -bx\n by = -by\n bz = -bz\n bw = -bw\n }\n // calculate coefficients\n if ((1.0 - cosom) > 0.000001) {\n // standard case (slerp)\n omega = Math.acos(cosom)\n sinom = Math.sin(omega)\n scale0 = Math.sin((1.0 - t) * omega) / sinom\n scale1 = Math.sin(t * omega) / sinom\n } else {\n // \"from\" and \"to\" quaternions are very close\n // ... so we can do a linear interpolation\n scale0 = 1.0 - t\n scale1 = t\n }\n // calculate final values\n out[0] = scale0 * ax + scale1 * bx\n out[1] = scale0 * ay + scale1 * by\n out[2] = scale0 * az + scale1 * bz\n out[3] = scale0 * aw + scale1 * bw\n\n return out\n}\n\n\n\n//////////////////\n// WEBPACK FOOTER\n// ./node_modules/gl-quat/slerp.js\n// module id = 55\n// module chunks = 0","module.exports = rotateX;\n\n/**\n * Rotates a matrix by the given angle around the X axis\n *\n * @param {mat4} out the receiving matrix\n * @param {mat4} a the matrix to rotate\n * @param {Number} rad the angle to rotate the matrix by\n * @returns {mat4} out\n */\nfunction rotateX(out, a, rad) {\n var s = Math.sin(rad),\n c = Math.cos(rad),\n a10 = a[4],\n a11 = a[5],\n a12 = a[6],\n a13 = a[7],\n a20 = a[8],\n a21 = a[9],\n a22 = a[10],\n a23 = a[11];\n\n if (a !== out) { // If the source and destination differ, copy the unchanged rows\n out[0] = a[0];\n out[1] = a[1];\n out[2] = a[2];\n out[3] = a[3];\n out[12] = a[12];\n out[13] = a[13];\n out[14] = a[14];\n out[15] = a[15];\n }\n\n // Perform axis-specific matrix multiplication\n out[4] = a10 * c + a20 * s;\n out[5] = a11 * c + a21 * s;\n out[6] = a12 * c + a22 * s;\n out[7] = a13 * c + a23 * s;\n out[8] = a20 * c - a10 * s;\n out[9] = a21 * c - a11 * s;\n out[10] = a22 * c - a12 * s;\n out[11] = a23 * c - a13 * s;\n return out;\n};\n\n\n//////////////////\n// WEBPACK FOOTER\n// ./node_modules/gl-mat4/rotateX.js\n// module id = 56\n// module chunks = 0","module.exports = rotateY;\n\n/**\n * Rotates a matrix by the given angle around the Y axis\n *\n * @param {mat4} out the receiving matrix\n * @param {mat4} a the matrix to rotate\n * @param {Number} rad the angle to rotate the matrix by\n * @returns {mat4} out\n */\nfunction rotateY(out, a, rad) {\n var s = Math.sin(rad),\n c = Math.cos(rad),\n a00 = a[0],\n a01 = a[1],\n a02 = a[2],\n a03 = a[3],\n a20 = a[8],\n a21 = a[9],\n a22 = a[10],\n a23 = a[11];\n\n if (a !== out) { // If the source and destination differ, copy the unchanged rows\n out[4] = a[4];\n out[5] = a[5];\n out[6] = a[6];\n out[7] = a[7];\n out[12] = a[12];\n out[13] = a[13];\n out[14] = a[14];\n out[15] = a[15];\n }\n\n // Perform axis-specific matrix multiplication\n out[0] = a00 * c - a20 * s;\n out[1] = a01 * c - a21 * s;\n out[2] = a02 * c - a22 * s;\n out[3] = a03 * c - a23 * s;\n out[8] = a00 * s + a20 * c;\n out[9] = a01 * s + a21 * c;\n out[10] = a02 * s + a22 * c;\n out[11] = a03 * s + a23 * c;\n return out;\n};\n\n\n//////////////////\n// WEBPACK FOOTER\n// ./node_modules/gl-mat4/rotateY.js\n// module id = 57\n// module chunks = 0","module.exports = rotateZ;\n\n/**\n * Rotates a matrix by the given angle around the Z axis\n *\n * @param {mat4} out the receiving matrix\n * @param {mat4} a the matrix to rotate\n * @param {Number} rad the angle to rotate the matrix by\n * @returns {mat4} out\n */\nfunction rotateZ(out, a, rad) {\n var s = Math.sin(rad),\n c = Math.cos(rad),\n a00 = a[0],\n a01 = a[1],\n a02 = a[2],\n a03 = a[3],\n a10 = a[4],\n a11 = a[5],\n a12 = a[6],\n a13 = a[7];\n\n if (a !== out) { // If the source and destination differ, copy the unchanged last row\n out[8] = a[8];\n out[9] = a[9];\n out[10] = a[10];\n out[11] = a[11];\n out[12] = a[12];\n out[13] = a[13];\n out[14] = a[14];\n out[15] = a[15];\n }\n\n // Perform axis-specific matrix multiplication\n out[0] = a00 * c + a10 * s;\n out[1] = a01 * c + a11 * s;\n out[2] = a02 * c + a12 * s;\n out[3] = a03 * c + a13 * s;\n out[4] = a10 * c - a00 * s;\n out[5] = a11 * c - a01 * s;\n out[6] = a12 * c - a02 * s;\n out[7] = a13 * c - a03 * s;\n return out;\n};\n\n\n//////////////////\n// WEBPACK FOOTER\n// ./node_modules/gl-mat4/rotateZ.js\n// module id = 58\n// module chunks = 0","'use strict'\n\nmodule.exports = mouseListen\n\nvar mouse = require('mouse-event')\n\nfunction mouseListen (element, callback) {\n if (!callback) {\n callback = element\n element = window\n }\n\n var buttonState = 0\n var x = 0\n var y = 0\n var mods = {\n shift: false,\n alt: false,\n control: false,\n meta: false\n }\n var attached = false\n\n function updateMods (ev) {\n var changed = false\n if ('altKey' in ev) {\n changed = changed || ev.altKey !== mods.alt\n mods.alt = !!ev.altKey\n }\n if ('shiftKey' in ev) {\n changed = changed || ev.shiftKey !== mods.shift\n mods.shift = !!ev.shiftKey\n }\n if ('ctrlKey' in ev) {\n changed = changed || ev.ctrlKey !== mods.control\n mods.control = !!ev.ctrlKey\n }\n if ('metaKey' in ev) {\n changed = changed || ev.metaKey !== mods.meta\n mods.meta = !!ev.metaKey\n }\n return changed\n }\n\n function handleEvent (nextButtons, ev) {\n var nextX = mouse.x(ev)\n var nextY = mouse.y(ev)\n if ('buttons' in ev) {\n nextButtons = ev.buttons | 0\n }\n if (nextButtons !== buttonState ||\n nextX !== x ||\n nextY !== y ||\n updateMods(ev)) {\n buttonState = nextButtons | 0\n x = nextX || 0\n y = nextY || 0\n callback && callback(buttonState, x, y, mods)\n }\n }\n\n function clearState (ev) {\n handleEvent(0, ev)\n }\n\n function handleBlur () {\n if (buttonState ||\n x ||\n y ||\n mods.shift ||\n mods.alt ||\n mods.meta ||\n mods.control) {\n x = y = 0\n buttonState = 0\n mods.shift = mods.alt = mods.control = mods.meta = false\n callback && callback(0, 0, 0, mods)\n }\n }\n\n function handleMods (ev) {\n if (updateMods(ev)) {\n callback && callback(buttonState, x, y, mods)\n }\n }\n\n function handleMouseMove (ev) {\n if (mouse.buttons(ev) === 0) {\n handleEvent(0, ev)\n } else {\n handleEvent(buttonState, ev)\n }\n }\n\n function handleMouseDown (ev) {\n handleEvent(buttonState | mouse.buttons(ev), ev)\n }\n\n function handleMouseUp (ev) {\n handleEvent(buttonState & ~mouse.buttons(ev), ev)\n }\n\n function attachListeners () {\n if (attached) {\n return\n }\n attached = true\n\n element.addEventListener('mousemove', handleMouseMove)\n\n element.addEventListener('mousedown', handleMouseDown)\n\n element.addEventListener('mouseup', handleMouseUp)\n\n element.addEventListener('mouseleave', clearState)\n element.addEventListener('mouseenter', clearState)\n element.addEventListener('mouseout', clearState)\n element.addEventListener('mouseover', clearState)\n\n element.addEventListener('blur', handleBlur)\n\n element.addEventListener('keyup', handleMods)\n element.addEventListener('keydown', handleMods)\n element.addEventListener('keypress', handleMods)\n\n if (element !== window) {\n window.addEventListener('blur', handleBlur)\n\n window.addEventListener('keyup', handleMods)\n window.addEventListener('keydown', handleMods)\n window.addEventListener('keypress', handleMods)\n }\n }\n\n function detachListeners () {\n if (!attached) {\n return\n }\n attached = false\n\n element.removeEventListener('mousemove', handleMouseMove)\n\n element.removeEventListener('mousedown', handleMouseDown)\n\n element.removeEventListener('mouseup', handleMouseUp)\n\n element.removeEventListener('mouseleave', clearState)\n element.removeEventListener('mouseenter', clearState)\n element.removeEventListener('mouseout', clearState)\n element.removeEventListener('mouseover', clearState)\n\n element.removeEventListener('blur', handleBlur)\n\n element.removeEventListener('keyup', handleMods)\n element.removeEventListener('keydown', handleMods)\n element.removeEventListener('keypress', handleMods)\n\n if (element !== window) {\n window.removeEventListener('blur', handleBlur)\n\n window.removeEventListener('keyup', handleMods)\n window.removeEventListener('keydown', handleMods)\n window.removeEventListener('keypress', handleMods)\n }\n }\n\n // Attach listeners\n attachListeners()\n\n var result = {\n element: element\n }\n\n Object.defineProperties(result, {\n enabled: {\n get: function () { return attached },\n set: function (f) {\n if (f) {\n attachListeners()\n } else {\n detachListeners()\n }\n },\n enumerable: true\n },\n buttons: {\n get: function () { return buttonState },\n enumerable: true\n },\n x: {\n get: function () { return x },\n enumerable: true\n },\n y: {\n get: function () { return y },\n enumerable: true\n },\n mods: {\n get: function () { return mods },\n enumerable: true\n }\n })\n\n return result\n}\n\n\n\n//////////////////\n// WEBPACK FOOTER\n// ./node_modules/mouse-change/mouse-listen.js\n// module id = 59\n// module chunks = 0","'use strict'\n\nfunction mouseButtons(ev) {\n if(typeof ev === 'object') {\n if('buttons' in ev) {\n return ev.buttons\n } else if('which' in ev) {\n var b = ev.which\n if(b === 2) {\n return 4\n } else if(b === 3) {\n return 2\n } else if(b > 0) {\n return 1<<(b-1)\n }\n } else if('button' in ev) {\n var b = ev.button\n if(b === 1) {\n return 4\n } else if(b === 2) {\n return 2\n } else if(b >= 0) {\n return 1<) {\r\n this.prog = gl.createProgram();\r\n\r\n for (let shader of shaders) {\r\n gl.attachShader(this.prog, shader.shader);\r\n }\r\n gl.linkProgram(this.prog);\r\n if (!gl.getProgramParameter(this.prog, gl.LINK_STATUS)) {\r\n throw gl.getProgramInfoLog(this.prog);\r\n }\r\n\r\n this.attrPos = gl.getAttribLocation(this.prog, \"vs_Pos\");\r\n this.attrNor = gl.getAttribLocation(this.prog, \"vs_Nor\");\r\n this.attrCol = gl.getAttribLocation(this.prog, \"vs_Col\");\r\n this.unifModel = gl.getUniformLocation(this.prog, \"u_Model\");\r\n this.unifModelInvTr = gl.getUniformLocation(this.prog, \"u_ModelInvTr\");\r\n this.unifViewProj = gl.getUniformLocation(this.prog, \"u_ViewProj\");\r\n this.unifColor = gl.getUniformLocation(this.prog, \"u_Color\");\r\n }\r\n\r\n use() {\r\n if (activeProgram !== this.prog) {\r\n gl.useProgram(this.prog);\r\n activeProgram = this.prog;\r\n }\r\n }\r\n\r\n setModelMatrix(model: mat4) {\r\n this.use();\r\n if (this.unifModel !== -1) {\r\n gl.uniformMatrix4fv(this.unifModel, false, model);\r\n }\r\n\r\n if (this.unifModelInvTr !== -1) {\r\n let modelinvtr: mat4 = mat4.create();\r\n mat4.transpose(modelinvtr, model);\r\n mat4.invert(modelinvtr, modelinvtr);\r\n gl.uniformMatrix4fv(this.unifModelInvTr, false, modelinvtr);\r\n }\r\n }\r\n\r\n setViewProjMatrix(vp: mat4) {\r\n this.use();\r\n if (this.unifViewProj !== -1) {\r\n gl.uniformMatrix4fv(this.unifViewProj, false, vp);\r\n }\r\n }\r\n\r\n setGeometryColor(color: vec4) {\r\n this.use();\r\n if (this.unifColor !== -1) {\r\n gl.uniform4fv(this.unifColor, color);\r\n }\r\n }\r\n\r\n draw(d: Drawable) {\r\n this.use();\r\n\r\n if (this.attrPos != -1 && d.bindPos()) {\r\n gl.enableVertexAttribArray(this.attrPos);\r\n gl.vertexAttribPointer(this.attrPos, 4, gl.FLOAT, false, 0, 0);\r\n }\r\n\r\n if (this.attrNor != -1 && d.bindNor()) {\r\n gl.enableVertexAttribArray(this.attrNor);\r\n gl.vertexAttribPointer(this.attrNor, 4, gl.FLOAT, false, 0, 0);\r\n }\r\n\r\n d.bindIdx();\r\n gl.drawElements(d.drawMode(), d.elemCount(), gl.UNSIGNED_INT, 0);\r\n\r\n if (this.attrPos != -1) gl.disableVertexAttribArray(this.attrPos);\r\n if (this.attrNor != -1) gl.disableVertexAttribArray(this.attrNor);\r\n }\r\n};\r\n\r\nexport default ShaderProgram;\r\n\n\n\n// WEBPACK FOOTER //\n// ./src/rendering/gl/ShaderProgram.ts","module.exports = \"#version 300 es\\r\\n\\r\\n//This is a vertex shader. While it is called a \\\"shader\\\" due to outdated conventions, this file\\r\\n//is used to apply matrix transformations to the arrays of vertex data passed to it.\\r\\n//Since this code is run on your GPU, each vertex is transformed simultaneously.\\r\\n//If it were run on your CPU, each vertex would have to be processed in a FOR loop, one at a time.\\r\\n//This simultaneous transformation allows your program to run much faster, especially when rendering\\r\\n//geometry with millions of vertices.\\r\\n\\r\\nuniform mat4 u_Model; // The matrix that defines the transformation of the\\r\\n // object we're rendering. In this assignment,\\r\\n // this will be the result of traversing your scene graph.\\r\\n\\r\\nuniform mat4 u_ModelInvTr; // The inverse transpose of the model matrix.\\r\\n // This allows us to transform the object's normals properly\\r\\n // if the object has been non-uniformly scaled.\\r\\n\\r\\nuniform mat4 u_ViewProj; // The matrix that defines the camera's transformation.\\r\\n // We've written a static matrix for you to use for HW2,\\r\\n // but in HW3 you'll have to generate one yourself\\r\\n\\r\\nin vec4 vs_Pos; // The array of vertex positions passed to the shader\\r\\n\\r\\nin vec4 vs_Nor; // The array of vertex normals passed to the shader\\r\\n\\r\\nin vec4 vs_Col; // The array of vertex colors passed to the shader.\\r\\n\\r\\nout vec4 fs_Nor; // The array of normals that has been transformed by u_ModelInvTr. This is implicitly passed to the fragment shader.\\r\\nout vec4 fs_LightVec; // The direction in which our virtual light lies, relative to each vertex. This is implicitly passed to the fragment shader.\\r\\nout vec4 fs_Col; // The color of each vertex. This is implicitly passed to the fragment shader.\\r\\n\\r\\nconst vec4 lightPos = vec4(5, 5, 3, 1); //The position of our virtual light, which is used to compute the shading of\\r\\n //the geometry in the fragment shader.\\r\\n\\r\\nvoid main()\\r\\n{\\r\\n fs_Col = vs_Col; // Pass the vertex colors to the fragment shader for interpolation\\r\\n\\r\\n mat3 invTranspose = mat3(u_ModelInvTr);\\r\\n fs_Nor = vec4(invTranspose * vec3(vs_Nor), 0); // Pass the vertex normals to the fragment shader for interpolation.\\r\\n // Transform the geometry's normals by the inverse transpose of the\\r\\n // model matrix. This is necessary to ensure the normals remain\\r\\n // perpendicular to the surface after the surface is transformed by\\r\\n // the model matrix.\\r\\n\\r\\n\\r\\n vec4 modelposition = u_Model * vs_Pos; // Temporarily store the transformed vertex positions for use below\\r\\n\\r\\n fs_LightVec = lightPos - modelposition; // Compute the direction in which the light source lies\\r\\n\\r\\n gl_Position = u_ViewProj * modelposition;// gl_Position is a built-in variable of OpenGL which is\\r\\n // used to render the final positions of the geometry's vertices\\r\\n}\\r\\n\"\n\n\n//////////////////\n// WEBPACK FOOTER\n// ./src/shaders/lambert-vert.glsl\n// module id = 66\n// module chunks = 0","module.exports = \"#version 300 es\\r\\n\\r\\n// This is a fragment shader. If you've opened this file first, please\\r\\n// open and read lambert.vert.glsl before reading on.\\r\\n// Unlike the vertex shader, the fragment shader actually does compute\\r\\n// the shading of geometry. For every pixel in your program's output\\r\\n// screen, the fragment shader is run for every bit of geometry that\\r\\n// particular pixel overlaps. By implicitly interpolating the position\\r\\n// data passed into the fragment shader by the vertex shader, the fragment shader\\r\\n// can compute what color to apply to its pixel based on things like vertex\\r\\n// position, light position, and vertex color.\\r\\nprecision highp float;\\r\\n\\r\\nuniform vec4 u_Color; // The color with which to render this instance of geometry.\\r\\n\\r\\n// These are the interpolated values out of the rasterizer, so you can't know\\r\\n// their specific values without knowing the vertices that contributed to them\\r\\nin vec4 fs_Nor;\\r\\nin vec4 fs_LightVec;\\r\\nin vec4 fs_Col;\\r\\n\\r\\nout vec4 out_Col; // This is the final output color that you will see on your\\r\\n // screen for the pixel that is currently being processed.\\r\\n\\r\\nvoid main()\\r\\n{\\r\\n // Material base color (before shading)\\r\\n vec4 diffuseColor = u_Color;\\r\\n\\r\\n // Calculate the diffuse term for Lambert shading\\r\\n float diffuseTerm = dot(normalize(fs_Nor), normalize(fs_LightVec));\\r\\n // Avoid negative lighting values\\r\\n // diffuseTerm = clamp(diffuseTerm, 0, 1);\\r\\n\\r\\n float ambientTerm = 0.2;\\r\\n\\r\\n float lightIntensity = diffuseTerm + ambientTerm; //Add a small float value to the color multiplier\\r\\n //to simulate ambient lighting. This ensures that faces that are not\\r\\n //lit by our point light are not completely black.\\r\\n\\r\\n // Compute final shaded color\\r\\n out_Col = vec4(diffuseColor.rgb * lightIntensity, diffuseColor.a);\\r\\n}\\r\\n\"\n\n\n//////////////////\n// WEBPACK FOOTER\n// ./src/shaders/lambert-frag.glsl\n// module id = 67\n// module chunks = 0"],"sourceRoot":""} \ No newline at end of file diff --git a/index.html b/index.html new file mode 100644 index 0000000..3a541e4 --- /dev/null +++ b/index.html @@ -0,0 +1,20 @@ + + + + Homework 2: Raymarching SDFs | CIS 566 + + + + + + + diff --git a/package-lock.json b/package-lock.json index e1a47a3..f36c607 100644 --- a/package-lock.json +++ b/package-lock.json @@ -3,9 +3,9 @@ "lockfileVersion": 1, "dependencies": { "3d-view": { - "version": "2.0.1", - "resolved": "https://registry.npmjs.org/3d-view/-/3d-view-2.0.1.tgz", - "integrity": "sha512-YSLRHXNpSziaaiK2R0pI5+JKguoJVbtWmIv9YyBFtl0+q42kQwJB/JUulbFR/1zYFm58ifjKQ6kVdgZ6tyKtCA==", + "version": 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"is-fullwidth-code-point": "^1.0.0", + "strip-ansi": "^3.0.0" + } + } + } + } + } + }, + "yargs-parser": { + "version": "7.0.0", + "resolved": "https://registry.npmjs.org/yargs-parser/-/yargs-parser-7.0.0.tgz", + "integrity": "sha1-jQrELxbqVd69MyyvTEA4s+P139k=", + "dev": true, + "requires": { + "camelcase": "^4.1.0" + }, + "dependencies": { + "camelcase": { + "version": "4.1.0", + "resolved": "https://registry.npmjs.org/camelcase/-/camelcase-4.1.0.tgz", + "integrity": "sha1-1UVjW+HjPFQmScaRc+Xeas+uNN0=", + "dev": true + } + } } } } diff --git a/package.json b/package.json index b7820de..ecec06f 100644 --- a/package.json +++ b/package.json @@ -1,19 +1,23 @@ { "scripts": { - "start": "webpack-dev-server --no-hot --live-reload", + "start": "webpack-dev-server --hot --inline", "build": "webpack" }, "devDependencies": { - "@types/webgl2": "0.0.6", - "ts-loader": "^9.2.5", - "typescript": "^4.4.2", - "webpack": "^5.52.0", - "webpack-cli": "^4.8.0", - "webpack-dev-server": "^4.1.1", + "@types/node": "^9.3.0", + "@types/webgl2": "0.0.2", + "@types/dat-gui": "^0.6.3", + "@types/gl-matrix": "^2.4.0", + "ts-loader": "^3.2.0", + "typescript": "^2.6.2", + "webpack": "^3.10.0", + "webpack-dev-server": "^2.10.1", "webpack-glsl-loader": "^1.0.1" }, "dependencies": { "3d-view-controls": "^2.2.2", - "gl-matrix": "^3.3.0" + "dat-gui": "^0.5.0", + "gl-matrix": "^2.4.0", + "stats-js": "^1.0.0-alpha1" } } diff --git a/src/main.ts b/src/main.ts index fe526f9..6812e52 100644 --- a/src/main.ts +++ b/src/main.ts @@ -1,6 +1,6 @@ import {vec2, vec3} from 'gl-matrix'; -// import * as Stats from 'stats-js'; -// import * as DAT from 'dat-gui'; +const Stats = require('stats-js'); +import * as DAT from 'dat-gui'; import Square from './geometry/Square'; import OpenGLRenderer from './rendering/gl/OpenGLRenderer'; import Camera from './Camera'; @@ -38,15 +38,15 @@ function main() { }, false); // Initial display for framerate - // const stats = Stats(); - // stats.setMode(0); - // stats.domElement.style.position = 'absolute'; - // stats.domElement.style.left = '0px'; - // stats.domElement.style.top = '0px'; - // document.body.appendChild(stats.domElement); + const stats = Stats(); + stats.setMode(0); + stats.domElement.style.position = 'absolute'; + stats.domElement.style.left = '0px'; + stats.domElement.style.top = '0px'; + document.body.appendChild(stats.domElement); // Add controls to the gui - // const gui = new DAT.GUI(); + const gui = new DAT.GUI(); // get canvas and webgl context const canvas = document.getElementById('canvas'); @@ -79,7 +79,7 @@ function main() { // This function will be called every frame function tick() { camera.update(); - // stats.begin(); + stats.begin(); gl.viewport(0, 0, window.innerWidth, window.innerHeight); renderer.clear(); processKeyPresses(); @@ -87,7 +87,7 @@ function main() { square, ], time); time++; - // stats.end(); + stats.end(); // Tell the browser to call `tick` again whenever it renders a new frame requestAnimationFrame(tick); diff --git a/src/shaders/flat-frag.glsl b/src/shaders/flat-frag.glsl index 50434bd..cf40f93 100644 --- a/src/shaders/flat-frag.glsl +++ b/src/shaders/flat-frag.glsl @@ -8,6 +8,634 @@ uniform float u_Time; in vec2 fs_Pos; out vec4 out_Col; +// CONSTANTS +int MAX_RAY_STEPS = 128; +float FOV = 45.0; +float EPSILON = 1e-3; +vec3 LIGHT_DIR = vec3(-1.0, 5.0, -5.0); +vec3 LIGHT_DIR2 = vec3(2.0, 5.0, 5.0); +const float HALF_PI = 3.14159 * 0.5; + +// OBJ IDS +int TABLE = 0; +int SOUPFACE = 1; +int SOUPEYES = 2; +int BOWL = 3; +int SOUPMOUTH = 4; +int CARROT = 5; +int PEA = 6; + +// COLORS +vec3 LIGHT2COLOR = vec3(0.5, 0.0, 0.0); +vec3 LIGHTCOLOR = vec3(0.0,0.0,0.5); + +vec3 AMBIENTCOLOR = vec3(0.3); +vec3 SOUPCOLOR = vec3(255.0, 246.0, 196.0) / 255.0; +vec3 TABLECOLOR = vec3(150.0, 13.0, 0.0) / 255.0; +vec3 BOWLCOLOR = vec3(237.0, 236.0, 232.0) / 255.0; +vec3 SOUPEYECOLOR = vec3(255.0, 252.0, 245.0) / 255.0; +vec3 SOUPIRISCOLOR = vec3(235.0, 149.0, 52.0) / 255.0; +vec3 SOUPMOUTHCOLOR = vec3(230.0, 203.0, 165.0) / 255.0; +vec3 SOUPTEXTURECOLOR = vec3(247.0, 216.0, 74.0) / 255.0; +vec3 CARROTCOLOR = vec3(214.0, 94.0, 2.0) / 255.0; +vec3 PEACOLOR = vec3(0.0, 148.0, 7.0) / 255.0; + +// SDF CONSTANTS +float S1RADIUS = 7.0; +float S2RADIUS = 6.6; +float SOUPRADIUS = 9.0; +vec3 TABLEDIMS = vec3(20.0, 3.0, 20.0); +vec3 BOUNDINGBOXDIMS = vec3(25.0, 20.0, 25.0); +vec3 CARROTDIMS = vec3(0.8); +float IRISRADIUS = 0.52; +vec2 IRISOFFSET = vec2(0.5, 1.0); // vec2(x, z) not vec2(x, y) + +// NOISY SOUP COLOR +//FBM NOISE FIRST VARIANT +float random3D(vec3 p) { + return sin(length(vec3(fract(dot(p, vec3(161.1, 121.8, 160.2))), + fract(dot(p, vec3(120.5, 161.3, 160.4))), + fract(dot(p, vec3(161.4, 161.2, 122.5))))) * 4390.906); +} + +float interpolateNoise3D(float x, float y, float z) +{ + int intX = int(floor(x)); + float fractX = fract(x); + int intY = int(floor(y)); + float fractY = fract(y); + int intZ = int(floor(z)); + float fractZ = fract(z); + + float v1 = random3D(vec3(intX, intY, intZ)); + float v2 = random3D(vec3(intX + 1, intY, intZ)); + float v3 = random3D(vec3(intX, intY + 1, intZ)); + float v4 = random3D(vec3(intX + 1, intY + 1, intZ)); + + float v5 = random3D(vec3(intX, intY, intZ + 1)); + float v6 = random3D(vec3(intX + 1, intY, intZ + 1)); + float v7 = random3D(vec3(intX, intY + 1, intZ + 1)); + float v8 = random3D(vec3(intX + 1, intY + 1, intZ + 1)); + + + float i1 = mix(v1, v2, fractX); + float i2 = mix(v3, v4, fractX); + + //mix between i1 and i2 + float i3 = mix(i1, i2, fractY); + + float i4 = mix(v5, v6, fractX); + float i5 = mix(v7, v8, fractX); + + //mix between i3 and i4 + float i6 = mix(i4, i5, fractY); + + //mix between i3 and i6 + float i7 = mix(i3, i6, fractZ); + + return i7; +} + +float fbmNoise(vec3 v) +{ + float total = 0.0; + float persistence = 0.3; + float frequency = 1.0; + float amplitude = 2.0; + int octaves = 3; + + for (int i = 1; i <= octaves; i++) { + total += amplitude * interpolateNoise3D(frequency * v.x, frequency * v.y, frequency * v.z); + frequency *= 2.7; + amplitude *= persistence; + } + return total; +} + +float getAnimation() { + return sin(float(u_Time) * 0.01) * 2.0; +} + +vec3 getSoupFaceColor(vec3 pos) { + //return clamp(fbmNoise(pos), 0.1, 0.3) * SOUPTEXTURECOLOR + SOUPCOLOR; + vec3 noiseInput = pos + getAnimation(); + float noiseFac = clamp(fbmNoise(noiseInput), 0.0, 1.0); + return mix(SOUPCOLOR, SOUPTEXTURECOLOR, noiseFac); +} + +float random3D2(vec3 p) { + return sin(length(vec3(fract(dot(p, vec3(6.1, 2.8, 6.2))), + fract(dot(p, vec3(2.5, 6.3, 6.4))), + fract(dot(p, vec3(6.4, 6.2, 2.5))))) * 459.0906); +} + +float interpolateNoise3D2(float x, float y, float z) +{ + int intX = int(floor(x)); + float fractX = fract(x); + int intY = int(floor(y)); + float fractY = fract(y); + int intZ = int(floor(z)); + float fractZ = fract(z); + + float v1 = random3D2(vec3(intX, intY, intZ)); + float v2 = random3D2(vec3(intX + 1, intY, intZ)); + float v3 = random3D2(vec3(intX, intY + 1, intZ)); + float v4 = random3D2(vec3(intX + 1, intY + 1, intZ)); + + float v5 = random3D2(vec3(intX, intY, intZ + 1)); + float v6 = random3D2(vec3(intX + 1, intY, intZ + 1)); + float v7 = random3D2(vec3(intX, intY + 1, intZ + 1)); + float v8 = random3D2(vec3(intX + 1, intY + 1, intZ + 1)); + + + float i1 = mix(v1, v2, fractX); + float i2 = mix(v3, v4, fractX); + + //mix between i1 and i2 + float i3 = mix(i1, i2, fractY); + + float i4 = mix(v5, v6, fractX); + float i5 = mix(v7, v8, fractX); + + //mix between i3 and i4 + float i6 = mix(i4, i5, fractY); + + //mix between i3 and i6 + float i7 = mix(i3, i6, fractZ); + + return i7; +} + +float fbmNoise2(vec3 v) { + float total = 0.0; + float persistence = 0.5; + float frequency = 5.0; + float amplitude = 5.0; + int octaves = 5; + + for (int i = 1; i <= octaves; i++) { + total += amplitude * interpolateNoise3D2(frequency * v.x, frequency * v.y, frequency * v.z); + frequency *= 3.6; + amplitude *= persistence; + } + return total; +} + +// SCENE STRUCTS +struct Ray +{ + vec3 origin; + vec3 direction; +}; + +struct Intersection +{ + vec3 position; + vec3 normal; + float distance_t; + int objectHit; + int material_id; +}; + +// SDF FUNCTIONS +float sdfSphere(vec3 query_position, vec3 position, float radius) +{ + return length(query_position - position) - radius; +} + +float sdCappedTorus(in vec3 p, in vec2 sc, in float ra, in float rb) +{ + p.x = abs(p.x); + float k = (sc.y*p.x>sc.x*p.y) ? dot(p.xy,sc) : length(p.xy); + return sqrt( dot(p,p) + ra*ra - 2.0*ra*k ) - rb; +} + +float sdBox( vec3 p, vec3 b ) +{ + vec3 q = abs(p) - b; + return length(max(q,0.0)) + min(max(q.x,max(q.y,q.z)),0.0); +} + +float sdSolidAngle(vec3 p, vec2 c, float ra) +{ + // c is the sin/cos of the angle + vec2 q = vec2( length(p.xz), p.y ); + float l = length(q) - ra; + float m = length(q - c*clamp(dot(q,c),0.0,ra) ); + return max(l,m*sign(c.y*q.x-c.x*q.y)); +} + +float sdEllipsoid( vec3 p, vec3 r ) +{ + float k0 = length(p/r); + float k1 = length(p/(r*r)); + return k0*(k0-1.0)/k1; +} + +float sdPyramid( vec3 p, float h) +{ + float m2 = h*h + 0.25; + + // tweaked values to resize the bottom o the nose + p.xz = abs(p.xz); + p.xz = (p.z>p.x) ? p.zx : p.xz; + p.xz -= 0.5; + + vec3 q = vec3( p.z, h*p.y - 0.5*p.x, h*p.x + 0.5*p.y); + + float s = max(-q.x,0.0); + float t = clamp( (q.y-0.5*p.z)/(m2+0.25), 0.0, 1.0 ); + + float a = m2*(q.x+s)*(q.x+s) + q.y*q.y; + float b = m2*(q.x+0.5*t)*(q.x+0.5*t) + (q.y-m2*t)*(q.y-m2*t); + + float d2 = min(q.y,-q.x*m2-q.y*0.5) > 0.0 ? 0.0 : min(a,b); + + return sqrt( (d2+q.z*q.z)/m2 ) * sign(max(q.z,-p.y)); +} + +float sdCappedCylinder( vec3 p, float h, float r ) +{ + vec2 d = abs(vec2(length(p.xz),p.y)) - vec2(h,r); + return min(max(d.x,d.y),0.0) + length(max(d,0.0)); +} + +float sdVerticalCapsule( vec3 p, float h, float r ) +{ + p.y -= clamp( p.y, 0.0, h ); + return length( p ) - r; +} + +float rounding( in float d, in float h ) +{ + return d - h; +} + +float planeSDF(vec3 queryPos, float height) +{ + return height - queryPos.y; +} + +// CSG FUNCTIONS +// Once again courtesy of IQ + +float opUnion( float d1, float d2 ) { return min(d1,d2); } + +float opSubtraction( float d1, float d2 ) { return max(-d1,d2); } + +float opIntersection( float d1, float d2 ) { return max(d1,d2); } + +// SMOOTH CSG FUNCTIONS +// Once again thank you IQ + +float opSmoothUnion( float d1, float d2, float k ) { + float h = clamp( 0.5 + 0.5*(d2-d1)/k, 0.0, 1.0 ); + return mix( d2, d1, h ) - k*h*(1.0-h); } + +float opSmoothSubtraction( float d1, float d2, float k ) { + float h = clamp( 0.5 - 0.5*(d2+d1)/k, 0.0, 1.0 ); + return mix( d2, -d1, h ) + k*h*(1.0-h); } + +float opSmoothIntersection( float d1, float d2, float k ) { + float h = clamp( 0.5 - 0.5*(d2-d1)/k, 0.0, 1.0 ); + return mix( d2, d1, h ) + k*h*(1.0-h); } + +// TRANSFORMATION FUNCTIONS +// From cis 462 + +mat4 rotateY(float theta) { + float c = cos(theta); + float s = sin(theta); + + return mat4( + vec4(c, 0, s, 0), + vec4(0, 1, 0, 0), + vec4(-s, 0, c, 0), + vec4(0, 0, 0, 1) + ); +} + +mat4 rotateX(float theta) { + float c = cos(theta); + float s = sin(theta); + + return mat4( + vec4(1, 0, 0, 0), + vec4(0, c, -s, 0), + vec4(0, s, c, 0), + vec4(0, 0, 0, 1) + ); +} + +mat4 rotateZ(float theta) { + float c = cos(theta); + float s = sin(theta); + + return mat4( + vec4(c, -s, 0, 0), + vec4(s, c, 0, 0), + vec4(0, 0, 1, 0), + vec4(0, 0, 0, 1) + ); +} + +// COMMON FUNCTIONS +float smin( float a, float b, float k ) +{ + float h = clamp( 0.5+0.5*(b-a)/k, 0.0, 1.0 ); + return mix( b, a, h ) - k*h*(1.0-h); +} + +//SOUP FUNCTIONS + +float faceSDF(vec3 queryPos, inout int objHit) { + float soupBase = sdSolidAngle(queryPos + vec3(0.0, 7.0, 0.0), vec2(0.8), SOUPRADIUS); + + // soup face construction + + // left eyelid + mat4 lEyeRotMat = rotateZ(0.0 * 3.14159 / 180.0) * rotateX(9.5 * 3.14159 / 180.0) * rotateY(0.0 * 3.14159 / 180.0); + vec4 lEyePos = vec4(queryPos - vec3(-0.5, 1.5, 2.0), 1.0); + vec4 lEyelidSubtractPos = vec4(vec3(lEyePos) - vec3(0.4, 0.1, 0.0), 1.0); + + // right eyelid + mat4 rEyeRotMat = rotateZ(0.0 * 3.14159 / 180.0) * rotateX(-9.5 * 3.14159 / 180.0) * rotateY(0.0 * 3.14159 / 180.0); + vec4 rEyePos = vec4(queryPos - vec3(-0.5, 1.5, -2.0), 1.0); + vec4 rEyelidSubtractPos = vec4(vec3(rEyePos) - vec3(0.4, 0.1, 0.0), 1.0); + + //each eyelid subtracted + float soupLEyelid = sdEllipsoid(vec3(lEyeRotMat * lEyePos), vec3(1.0, 0.5, 1.6)); + float soupLEyelidSubtract = sdEllipsoid(vec3(lEyeRotMat * lEyelidSubtractPos), vec3(1.1, 0.5, 1.6)); + soupLEyelid = opSubtraction(soupLEyelidSubtract, soupLEyelid); + soupLEyelid = opSmoothUnion(soupLEyelid, soupBase, 0.1); + + float soupREyelid = sdEllipsoid(vec3(rEyeRotMat * rEyePos), vec3(1.0, 0.5, 1.6)); + float soupREyelidSubtract = sdEllipsoid(vec3(rEyeRotMat * rEyelidSubtractPos), vec3(1.1, 0.5, 1.6)); + soupREyelid = opSubtraction(soupREyelidSubtract, soupREyelid); + soupREyelid = opSmoothUnion(soupREyelid, soupBase, 0.1); + + // eyeballs translated slightly down + float soupLEyeBall = sdEllipsoid(vec3(lEyeRotMat * lEyePos) + vec3(0.0, 0.05, 0.1), vec3(1.0, 0.5, 1.4)); + float soupREyeBall = sdEllipsoid(vec3(rEyeRotMat * rEyePos) + vec3(0.0, 0.05, -0.1), vec3(1.0, 0.5, 1.4)); + + // nose got oddly rotated?? + mat4 noseRotMat = rotateZ(100.0 * 3.14159 / 180.0) * rotateX(45.0 * 3.14159 / 180.0); + float nose = sdPyramid((vec3(noseRotMat * vec4(queryPos - vec3(2.0, 1.9, 0.0), 1.0))), 3.0); + nose = rounding(nose, 0.1); + + //cheek lines + float lcheek = sdfSphere(queryPos, vec3(1.7, -1.5, 2.5), 2.9); + float lCheekFaceBlend = opSmoothUnion(soupBase, lcheek, 0.5); + + float rcheek = sdfSphere(queryPos, vec3(1.7, -1.5, -2.5), 2.9); + float rCheekFaceBlend = opSmoothUnion(soupBase, rcheek, 0.5); + + //lips + float toplip = sdEllipsoid(queryPos - vec3(3.2, 0.5, 0.0), vec3(0.7, 1.3, 1.5)); + float bottomlip = sdEllipsoid(queryPos - vec3(3.9, 0.05, 0.0), vec3(0.7, 1.3, 1.5)); + float smoothlip = opSmoothUnion(toplip, bottomlip, 0.5); + + float smoothlip2 = opSmoothUnion(soupBase, smoothlip, 0.2); + + float t = soupBase; + objHit = SOUPFACE; + t = min(t, soupLEyelid); + t = min(t, soupREyelid); + t = min(t, soupLEyeBall); + t = min(t, soupREyeBall); + if (t == soupLEyeBall || t == soupREyeBall) { + objHit = SOUPEYES; + } + t = min(t, nose); + t = min(t, lCheekFaceBlend); + t = min(t, rCheekFaceBlend); + t = min(t, smoothlip); + if (t == smoothlip) { + objHit = SOUPMOUTH; + } + t = min(t, smoothlip2); + + return t;//mix(t, soupBase, clamp(cos(u_Time * 0.1), 0.0, 1.0)); + //return mix(t, soupBase, clamp(cos(u_Time * 0.1), 0.0, 1.0)); +} + +float sceneSDF(vec3 queryPos, inout int objHit) +{ + float boundingBoxDist = sdBox(queryPos, BOUNDINGBOXDIMS); + + if (boundingBoxDist < EPSILON) { + float table = sdBox(queryPos + vec3(0.0, 8.0, 0.0), TABLEDIMS); + + float sphere1 = sdfSphere(queryPos, vec3(0.0), S1RADIUS); + float innerSphere1 = sdfSphere(queryPos, vec3(0.0), S2RADIUS); + float sphereSlicePlane = planeSDF(queryPos + vec3(0.0, 5.0, 0.0), 5.0); + + float bowl = opSubtraction(innerSphere1, sphere1); + bowl = opSubtraction(sphereSlicePlane, bowl); + + //When soup is not being crazy -- Credit to Sam for helping me figure this out + float normalSoup = sdfSphere(queryPos, vec3(0.0), S1RADIUS); + normalSoup = max(normalSoup, queryPos.y + 0.5); + + //mix flat soup with OWO soup + float face = mix(faceSDF(queryPos, objHit), normalSoup, clamp(cos(u_Time * 0.05), 0.0, 1.0)); + + //soup bits + //vec3 inputPosition = vec3(queryPos.x, sin(u_Time * 0.001), queryPos.z); + float carrot1 = sdBox(vec3(rotateZ(40.0 * 3.14159 / 180.0) * rotateX(30.0 * 3.14159 / 180.0) * (vec4(queryPos, 1.0) + vec4(-1.0, 0.5, 5.0, 1.0))), CARROTDIMS); + float carrot2 = sdBox(vec3(rotateX(50.0 * 3.14159 / 180.0) * (vec4(queryPos, 1.0) + vec4(3.0, 0.5, 4.0, 1.0))), CARROTDIMS * 0.7); + float carrot3 = sdBox(vec3(rotateY(70.0 * 3.14159 / 180.0) * rotateZ(30.0 * 3.14159 / 180.0) * (vec4(queryPos, 1.0) + vec4(-2.0, 0.5, -4.0, 1.0))), CARROTDIMS * 0.7); + float carrotSmooth = opSmoothUnion(carrot1, face, 0.3); + carrotSmooth = opSmoothUnion(carrot2, carrotSmooth, 0.3); + carrotSmooth = opSmoothUnion(carrot3, carrotSmooth, 0.3); + + float pea1 = sdfSphere(vec3(queryPos + vec3(4.0, 0.5, 0.0)), vec3(0.0), 0.5); + float pea2 = sdfSphere(vec3(queryPos + vec3(-5.0, 0.5, 3.0)), vec3(0.0), 0.5); + float pea3 = sdfSphere(vec3(queryPos + vec3(-3.0, 0.5, -3.0)), vec3(0.0), 0.5); + float pea4 = sdfSphere(vec3(queryPos + vec3(3.0, 0.5, 3.0)), vec3(0.0), 0.5); + + /* the max function slices sphere in half + * courtesy of IQ's demo here: https://www.shadertoy.com/view/MlcBDj + */ + float t = min(table, bowl); + t = min(t, face); + t = min(t, carrot1); + t = min(t, carrot2); + t = min(t, carrot3); + t = min(t, pea1); + t = min(t, pea2); + t = min(t, pea3); + t = min(t, pea4); + + if (t == table) { + objHit = TABLE; + } + if (t == bowl) { + objHit = BOWL; + } + if (t == carrot1 || t == carrot2 || t == carrot3) { + objHit = CARROT; + } + if (t == pea1 || t == pea2 || t == pea3 || t == pea4) { + objHit = PEA; + } + + t = min(t, carrotSmooth); + + return t; + } + objHit = -1; + return boundingBoxDist; +} +// SHADOW +float shadow(vec3 rayOrigin, inout int objHit, vec3 rayDirection, float min_t, float max_t) { + for (float t = min_t; t < max_t; ) { + float h = sceneSDF(rayOrigin + rayDirection * t, objHit); + if (h < EPSILON) { + return 0.0; + } + t += h; + } + return 1.0; +} + +float softShadow(vec3 rayOrigin, inout int objHit, vec3 rayDirection, float min_t, float max_t, float k) { + float res = 1.0; + for (float t = min_t; t < max_t; ) { + float h = sceneSDF(rayOrigin + rayDirection * t, objHit); + if (h < EPSILON) { + return 0.0; + } + res = min(res, k * h / t); + t += h; + } + return 1.0; +} + +Ray getRay(vec2 ndcPos) { + Ray r; + + vec3 look = normalize(u_Ref - u_Eye); + vec3 cameraRight = normalize(cross(look, u_Up)); + vec3 cameraUp = cross(cameraRight, look); + + float aspectRatio = u_Dimensions.x / u_Dimensions.y; + + float len = length(u_Ref - u_Eye); + vec3 screenV = cameraUp * len * tan(FOV); + vec3 screenH = cameraRight * len * aspectRatio * tan(FOV); + + vec3 screenPos = u_Ref + fs_Pos.x * screenH + fs_Pos.y * screenV; + + r.direction = normalize(screenPos - u_Eye); + r.origin = u_Eye; + + return r; +} + +vec3 estimateNormal(vec3 p, inout int objHit) +{ + vec2 d = vec2(0.0, EPSILON); + float x = sceneSDF(p + d.yxx, objHit) - sceneSDF(p - d.yxx, objHit); + float y = sceneSDF(p + d.xyx, objHit) - sceneSDF(p - d.xyx, objHit); + float z = sceneSDF(p + d.xxy, objHit) - sceneSDF(p - d.xxy, objHit); + + return normalize(vec3(x,y,z)); +} + +Intersection getRaymarchedIntersection(vec2 uv) { + Intersection intersection; + intersection.distance_t = -1.0; + + Ray r = getRay(uv); + float dist_t = 0.0; + for (int st; st < MAX_RAY_STEPS; ++st) { + vec3 queryPoint = r.origin + r.direction * dist_t; + int objHit; + float distFromScene = sceneSDF(queryPoint, objHit); + + if (distFromScene < EPSILON) { + //we've hit something + intersection.position = queryPoint; + intersection.distance_t = distFromScene; + intersection.objectHit = objHit; + intersection.normal = estimateNormal(queryPoint, objHit); + return intersection; + } + + dist_t += distFromScene; + } + + return intersection; +} + +//blinn phong specular intensity +float bpSpecIntensity(Intersection inter) { + vec3 V = normalize(vec3(u_Eye) - vec3(inter.position)); + vec3 L = normalize(LIGHT_DIR - vec3(inter.position)); + vec4 avg_h = vec4((V + L) / 2.0, 0.0); + float specIntensity = max(pow(clamp(dot(avg_h, vec4(inter.normal, 0.0)), 0.0, 1.0), 10.0), 0.0); + + vec3 L2 = normalize(LIGHT_DIR2 - vec3(inter.position)); + vec4 avg_h2 = vec4((V + L2) / 2.0, 0.0); + specIntensity += max(pow(clamp(dot(avg_h2, vec4(inter.normal, 0.0)), 0.0, 1.0), 10.0), 0.0); + + //specIntensity *= LIGHT2COLOR; + return specIntensity; +} + +vec3 getSceneColor(vec2 uv) { + Intersection intersection = getRaymarchedIntersection(uv); + if (intersection.distance_t > 0.0) + { + // CALCULATE ALL LIGHTING + // LAMBERTIAN LIGHTING + float diffuseTerm = dot(intersection.normal, normalize(LIGHT_DIR)); + float ambientTerm = 0.1; + + diffuseTerm = clamp(diffuseTerm, 0.0, 1.0); + + float lambertIntensity = diffuseTerm + ambientTerm; + + // CALCULATE ALL COLOR + int shadowHitObject; + //float shadowFactor = shadow(intersection.position, shadowHitObject, normalize(LIGHT_DIR), 0.1, 7.0); + float shadowFactor = softShadow(intersection.position, shadowHitObject, normalize(LIGHT_DIR), 0.1, 7.0, 0.5); + vec3 materialColor = AMBIENTCOLOR; + if (intersection.objectHit == SOUPFACE) { + materialColor = getSoupFaceColor(intersection.position); + // CALCULATE BLINN PHONG LIGHTING FOR SOUP FACE + float specIntensity = bpSpecIntensity(intersection); + materialColor = getSoupFaceColor(intersection.position) * (lambertIntensity + specIntensity); + } else if (intersection.objectHit == TABLE) { + materialColor = TABLECOLOR * lambertIntensity; + } else if (intersection.objectHit == BOWL) { + materialColor = BOWLCOLOR * lambertIntensity; + } else if (intersection.objectHit == SOUPEYES) { + + // POLKA DOT PATTERN + // courtesy of https://weber.itn.liu.se/~stegu/webglshadertutorial/shadertutorial.html + float frequency = 0.5; + vec2 nearest = 2.0 * fract(frequency * (vec2(intersection.position.x, intersection.position.z) - IRISOFFSET)) - 1.0; + float dist = length(nearest); + float radius = IRISRADIUS; + materialColor = mix(SOUPIRISCOLOR, SOUPEYECOLOR, step(radius, dist)) * lambertIntensity; + } else if (intersection.objectHit == SOUPMOUTH) { + materialColor = mix(SOUPMOUTHCOLOR, SOUPCOLOR, intersection.position.y) * lambertIntensity; + } else if (intersection.objectHit == CARROT) { + materialColor = CARROTCOLOR * lambertIntensity; + } else if (intersection.objectHit == PEA) { + materialColor = PEACOLOR * lambertIntensity; + } + vec3 finalcolor = materialColor * shadowFactor; + return finalcolor; + } + return vec3(clamp(fbmNoise2(vec3(uv, 1.0) + getAnimation()), 0.0, 0.06)); +} + +//MAIN void main() { - out_Col = vec4(0.5 * (fs_Pos + vec2(1.0)), 0.5 * (sin(u_Time * 3.14159 * 0.01) + 1.0), 1.0); + vec3 colorOutput = getSceneColor(fs_Pos); + out_Col = vec4(colorOutput, 1.0); } diff --git a/tsconfig.json b/tsconfig.json index 79efea7..f62940e 100644 --- a/tsconfig.json +++ b/tsconfig.json @@ -5,7 +5,6 @@ "noImplicitAny": true, "module": "es6", "target": "es6", - "allowJs": true, - "moduleResolution": "node" + "allowJs": true } } diff --git a/webpack.config.js b/webpack.config.js index 2cce33b..f3d6ece 100644 --- a/webpack.config.js +++ b/webpack.config.js @@ -1,15 +1,14 @@ const path = require('path'); module.exports = { - mode: process.env.NODE_ENV === 'production' ? 'production' : 'development', entry: path.resolve(__dirname, "src/main"), output: { path: path.resolve(__dirname, "dist"), filename: "bundle.js", - publicPath: '/', + publicPath: 'dist/', }, module: { - rules: [ + loaders: [ { test: /\.ts$/, use: 'ts-loader', @@ -27,11 +26,6 @@ module.exports = { devtool: 'source-map', devServer: { port: 5660, - static: { - directory: path.join(__dirname, 'dist'), - }, - client: { - overlay: true, - } + overlay: true, }, };