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<!doctype html>
<html>
<head>
<meta charset="utf-8">
<meta name="mobile-web-app-capable" content="yes">
<title>mapMD</title>
</head>
<script src="pixi.js"></script>
<script src="js/tools/webcam.js"></script>
<script src="js/tools/tools.js"></script>
<script src="js/tools/ColorMapFilter.js"></script>
<script src="js/tools/webcam.js"></script>
<script src="js/tools/animation.js"></script>
<script src="js/tools/tween.js"></script>
<script src="js/vision-filter.js"></script>
<body>
<style>* {
padding: 0;
margin: 0;
height: 100%;
}
</style>
<script type="text/javascript">
class BarrelFilter extends PIXI.Filter {
constructor(power = 1.2, offset = { x: 0, y: 0 }) {
super(undefined, BarrelFilter.fragment);
this.uniforms.dimensions = { x: 0, y: 0 };
this.uniforms.filterArea = { x: 0, y: 0, z: 0, w: 0 };
this.uniforms.power = power;
this.uniforms.offset = offset;
this.uniforms.nssm = new PIXI.Matrix();
this.uniforms.inssm = new PIXI.Matrix();
}
apply(filterManager, input, output) {
this.uniforms.dimensions.x = input.sourceFrame.width;
this.uniforms.dimensions.y = input.sourceFrame.height;
this.uniforms.filterArea.x = output.size.width;
this.uniforms.filterArea.y = output.size.height;
this.uniforms.filterArea.z = input.sourceFrame.x;
this.uniforms.filterArea.w = input.sourceFrame.y;
filterManager.calculateNormalizedScreenSpaceMatrix(this.uniforms.nssm);
filterManager.calculateNormalizedScreenSpaceMatrix(this.uniforms.inssm);
this.uniforms.inssm.invert();
filterManager.applyFilter(this, input, output);
}
}
BarrelFilter.fragment = `
precision highp float;
varying vec2 vTextureCoord;
varying vec2 vFilterCoord;
uniform sampler2D uSampler;
uniform vec2 dimensions;
uniform vec4 filterArea;
uniform float power;
uniform vec2 offset;
uniform mat3 nssm;
uniform mat3 inssm;
vec2 mapCoord( vec2 coord ){
return (vec3(coord, 1.0) * nssm).xy;
}
vec2 unmapCoord( vec2 coord ){
return (vec3(coord, 1.0) * inssm).xy;
}
// Given a vec2 in [-1,+1], generate a texture coord in [0,+1]
vec2 barrelDistortion(vec2 p)
{
float theta = atan(p.y, p.x);
float radius = length(p);
radius = pow(radius, power);
p.x = radius * cos(theta);
p.y = radius * sin(theta);
return 0.5 * (p + 1.0);
}
void main(){
vec2 uv = mapCoord(vTextureCoord);
uv = barrelDistortion(uv*2.0 - 1.0 + offset);
gl_FragColor = texture2D(uSampler, unmapCoord(uv));
}
`;
//Create the renderer
var stage = new PIXI.Container(),
renderer = PIXI.autoDetectRenderer(0, 0);
document.body.appendChild(renderer.view);
renderer.view.style.position = "absolute";
renderer.view.style.display = "block";
renderer.autoResize = true;
renderer.resize(window.innerWidth, window.innerHeight);
//Use Pixi's built-in `loader` object to load an image
// PIXI.loader
// .add("img_fjords.jpg")
// .load(setup);
//This `setup` function will run when the image has loaded
const webcam = new Webcam();
webcam.onReady.add(onWebcam);
webcam.init();
function setup() {
// //Create the `cat` sprite from the texture
// var cat = new PIXI.Sprite(
// PIXI.loader.resources["img_fjords.jpg"].texture
// );
//
// //Add the cat to the stage
// stage.addChild(cat);
//Render the stage
renderer.render(stage);
}
let texture;
let sprite;
let ri = 0.15; let ro = 0.25; let c = {x:0.5, y:0.5};
let visionMapFilter = new VisionMapFilter(ri, ro, c);
function onWebcam() {
console.log('webcam loaded');
console.log(webcam.video);
texture = new PIXI.Texture.fromVideo(webcam.video);
sprite = new PIXI.Sprite(texture);
sprite.x = 0;
sprite.y = 0;
sprite.height = renderer.height;
sprite.width = renderer.width/2;
sprite.filters = [visionMapFilter, new BarrelFilter(1.2)];
stage.addChild(sprite);
sprite = new PIXI.Sprite(texture);
sprite.x = renderer.width/2;
sprite.y = 0;
sprite.height = renderer.height;
sprite.width = renderer.width/2;
sprite.filters = [visionMapFilter,new BarrelFilter(1.2)];
stage.addChild(sprite);
renderer.render(stage);
loop();
// requestAnimationFrame(loop);
}
function loop() {
setTimeout(loop, 70);
sprite.texture.update();
renderer.render(stage);
}
var transitionId = null;
var transition = 0;
var mode = 0;
function pointerUp(){
window.cancelAnimationFrame(transitionId);
var start = transition;
mode = (mode + 1) % 2;
var end = mode;
transitionId = Math.animation(start, end, 200, Tween.Quad.easeIn, (x)=>{
transition = x;
updateFilter();
});
}
function updateFilter(){
var x = transition;
visionMapFilter.uniforms.warp = x;
visionMapFilter.uniforms.darkening = 2;
visionMapFilter.uniforms.contrast = 0;
}
updateFilter(transition);
stage.interactive = true;
stage.on('tap', pointerUp);
stage.on('click', pointerUp);
setup();
</script>
</body>
</html>