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- <!DOCTYPE html>
- <html lang="en">
- <head>
- <title>three.js webgpu - video material</title>
- <meta charset="utf-8">
- <meta name="viewport" content="width=device-width, user-scalable=no, minimum-scale=1.0, maximum-scale=1.0">
- <link type="text/css" rel="stylesheet" href="main.css">
- </head>
- <body>
- <div id="overlay">
- <button id="startButton">Play</button>
- </div>
- <div id="container"></div>
- <div id="info">
- <a href="https://threejs.org" target="_blank" rel="noopener">three.js</a> webgpu - video material<br/>
- playing <a href="http://durian.blender.org/" target="_blank" rel="noopener">sintel</a> trailer
- </div>
- <video id="video" loop crossOrigin="anonymous" playsinline style="display:none">
- <source src="textures/sintel.ogv" type='video/ogg; codecs="theora, vorbis"'>
- <source src="textures/sintel.mp4" type='video/mp4; codecs="avc1.42E01E, mp4a.40.2"'>
- </video>
- <script type="importmap">
- {
- "imports": {
- "three": "../build/three.webgpu.js",
- "three/tsl": "../build/three.webgpu.js",
- "three/addons/": "./jsm/"
- }
- }
- </script>
- <script type="module">
- import * as THREE from 'three';
- let container;
- let camera, scene, renderer;
- let video, texture, material, mesh;
- let mouseX = 0;
- let mouseY = 0;
- let windowHalfX = window.innerWidth / 2;
- let windowHalfY = window.innerHeight / 2;
- let cube_count;
- const meshes = [],
- materials = [],
- xgrid = 20,
- ygrid = 10;
- const startButton = document.getElementById( 'startButton' );
- startButton.addEventListener( 'click', function () {
- init();
- } );
- function init() {
- const overlay = document.getElementById( 'overlay' );
- overlay.remove();
- container = document.createElement( 'div' );
- document.body.appendChild( container );
- camera = new THREE.PerspectiveCamera( 40, window.innerWidth / window.innerHeight, 1, 10000 );
- camera.position.z = 500;
- scene = new THREE.Scene();
- const light = new THREE.DirectionalLight( 0xffffff, 7 );
- light.position.set( 0.5, 1, 1 ).normalize();
- scene.add( light );
- renderer = new THREE.WebGPURenderer( { antialias: true } );
- renderer.setPixelRatio( window.devicePixelRatio );
- renderer.setSize( window.innerWidth, window.innerHeight );
- renderer.setAnimationLoop( render );
- container.appendChild( renderer.domElement );
- video = document.getElementById( 'video' );
- video.play();
- video.addEventListener( 'play', function () {
- this.currentTime = 3;
- } );
- texture = new THREE.VideoTexture( video );
- //
- let i, j, ox, oy, geometry;
- const ux = 1 / xgrid;
- const uy = 1 / ygrid;
- const xsize = 480 / xgrid;
- const ysize = 204 / ygrid;
- const parameters = { color: 0xffffff, map: texture };
- cube_count = 0;
- for ( i = 0; i < xgrid; i ++ ) {
- for ( j = 0; j < ygrid; j ++ ) {
- ox = i;
- oy = j;
- geometry = new THREE.BoxGeometry( xsize, ysize, xsize );
- change_uvs( geometry, ux, uy, ox, oy );
- materials[ cube_count ] = new THREE.MeshPhongMaterial( parameters );
- material = materials[ cube_count ];
- material.hue = i / xgrid;
- material.saturation = 1 - j / ygrid;
- material.color.setHSL( material.hue, material.saturation, 0.5 );
- mesh = new THREE.Mesh( geometry, material );
- mesh.position.x = ( i - xgrid / 2 ) * xsize;
- mesh.position.y = ( j - ygrid / 2 ) * ysize;
- mesh.position.z = 0;
- mesh.scale.x = mesh.scale.y = mesh.scale.z = 1;
- scene.add( mesh );
- mesh.dx = 0.001 * ( 0.5 - Math.random() );
- mesh.dy = 0.001 * ( 0.5 - Math.random() );
- meshes[ cube_count ] = mesh;
- cube_count += 1;
- }
- }
- document.addEventListener( 'mousemove', onDocumentMouseMove );
- //
- window.addEventListener( 'resize', onWindowResize );
- }
- function onWindowResize() {
- windowHalfX = window.innerWidth / 2;
- windowHalfY = window.innerHeight / 2;
- camera.aspect = window.innerWidth / window.innerHeight;
- camera.updateProjectionMatrix();
- renderer.setSize( window.innerWidth, window.innerHeight );
- }
- function change_uvs( geometry, unitx, unity, offsetx, offsety ) {
- const uvs = geometry.attributes.uv.array;
- for ( let i = 0; i < uvs.length; i += 2 ) {
- uvs[ i ] = ( uvs[ i ] + offsetx ) * unitx;
- uvs[ i + 1 ] = ( uvs[ i + 1 ] + offsety ) * unity;
- }
- }
- function onDocumentMouseMove( event ) {
- mouseX = ( event.clientX - windowHalfX );
- mouseY = ( event.clientY - windowHalfY ) * 0.3;
- }
- //
- let h, counter = 1;
- function render() {
- const time = Date.now() * 0.00005;
- camera.position.x += ( mouseX - camera.position.x ) * 0.05;
- camera.position.y += ( - mouseY - camera.position.y ) * 0.05;
- camera.lookAt( scene.position );
- for ( let i = 0; i < cube_count; i ++ ) {
- material = materials[ i ];
- h = ( 360 * ( material.hue + time ) % 360 ) / 360;
- material.color.setHSL( h, material.saturation, 0.5 );
- }
- if ( counter % 1000 > 200 ) {
- for ( let i = 0; i < cube_count; i ++ ) {
- mesh = meshes[ i ];
- mesh.rotation.x += 10 * mesh.dx;
- mesh.rotation.y += 10 * mesh.dy;
- mesh.position.x -= 150 * mesh.dx;
- mesh.position.y += 150 * mesh.dy;
- mesh.position.z += 300 * mesh.dx;
- }
- }
- if ( counter % 1000 === 0 ) {
- for ( let i = 0; i < cube_count; i ++ ) {
- mesh = meshes[ i ];
- mesh.dx *= - 1;
- mesh.dy *= - 1;
- }
- }
- counter ++;
- renderer.render( scene, camera );
- }
- </script>
- </body>
- </html>
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