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code refactor; update libraries; fix fullscreen alignment and aspect;…
… tests for video loader; ruttetraizer
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,73 @@ | ||
| // Based on https://www.airtightinteractive.com/2011/06/rutt-etra-izer/ | ||
| // Original RuttEtraIzer by Felix Turner www.airtight.cc | ||
|
|
||
| const scale_rate = .01 | ||
| let scale = 2 | ||
| let pointer_x = .5 | ||
| let pointer_y = .5 | ||
| let down_x | ||
| let down_y | ||
|
|
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| export default class RuttEtraIzer { | ||
| constructor(THREE, renderer, canvas) { | ||
| this.THREE = THREE | ||
| this.renderer = renderer | ||
| this.camera = new THREE.PerspectiveCamera(90, 16 / 9, 1, 3000) | ||
| this.scene = new THREE.Scene() | ||
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| this.material = new THREE.LineBasicMaterial({ | ||
| color: 0xffffff, | ||
| blending: THREE.AdditiveBlending, | ||
| depthTest: false, | ||
| vertexColors: true, | ||
| }) | ||
|
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| canvas.addEventListener('pointerdown', e => {down_x = e.clientX; down_y = e.clientY}) | ||
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| document.addEventListener('pointerup', () => down_x = down_y = null) | ||
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| document.addEventListener('pointermove', e => { | ||
| if (down_x != null && down_y != null && down_x != e.clientX && down_y != e.clientY) { | ||
| const b = canvas.getBoundingClientRect() | ||
| pointer_x = Math.max(0, Math.min((e.clientX-b.left) / b.width, 1)) | ||
| pointer_y = Math.max(0, Math.min((e.clientY-b.top) / b.height, 1)) | ||
| down_x = e.clientX | ||
| down_y = e.clientY | ||
| } | ||
| }) | ||
|
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| canvas.addEventListener('wheel', e => scale = Math.max(1, Math.min(scale + e.deltaY*scale_rate, 10)), {passive: true}) | ||
| } | ||
|
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| frame(W, H, rgbx, {scanStep=5, depth=100}={}) { | ||
| const THREE = this.THREE | ||
|
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| if (this.lineGroup) { | ||
| this.scene.remove(this.lineGroup) | ||
| this.lineGroup.traverse(obj => obj.geometry?.dispose()) | ||
| } | ||
| this.lineGroup = new THREE.Group() | ||
|
|
||
| for (let y = 0; y < H; y += scanStep) { | ||
| const points = [] | ||
| const colors = [] | ||
| for (let x = 0; x < W; x += scanStep) { | ||
| const index4 = (x+y*W) * 4 | ||
| const color = new THREE.Color(rgbx[index4] / 255, rgbx[index4 + 1] / 255, rgbx[index4 + 2] / 255).convertSRGBToLinear() | ||
| const brightness = .2126*color.r + .7152*color.g + .0722*color.b | ||
| points.push(new THREE.Vector3(x - W/2, H/2 - y, (.5-brightness) * depth)) | ||
| colors.push(color.r, color.g, color.b) | ||
| } | ||
| const geometry = new THREE.BufferGeometry().setFromPoints(points) | ||
| geometry.setAttribute('color', new THREE.BufferAttribute(new Float32Array(colors), 3)) | ||
| this.lineGroup.add(new THREE.Line(geometry, this.material)) | ||
| } | ||
| this.lineGroup.scale.setScalar(scale) | ||
| this.lineGroup.rotation.x = (pointer_y*2-1)*Math.PI | ||
| this.lineGroup.rotation.y = (pointer_x*2-1)*Math.PI | ||
| this.scene.add(this.lineGroup) | ||
| if (this.camera.position.z != H) | ||
| this.camera.position.z = H | ||
| this.renderer.render(this.scene, this.camera) | ||
| } | ||
| } |
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