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+<!DOCTYPE HTML>
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+<html lang="en">
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+ <head>
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+ <title>three.js - Escher cube map WebGL</title>
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+ <meta charset="utf-8">
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+ <style type="text/css">
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+ body {
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+ background:#fff;
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+ color:#fff;
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+ padding:0;
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+ margin:0;
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+ overflow:hidden;
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+ font-family:georgia;
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+ text-align:center;
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+ }
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+ a { color: #ff0080; text-decoration: none; }
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+ a:hover { color: #0080ff; }
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+
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+ #log { position:absolute; top:50px; text-align:left; display:block; z-index:100 }
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+ #d { text-align:center; margin:1em auto -9.0em; z-index:1000; position:relative; display:block;
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+ background:rgba(0,0,0,0.75); padding:0.25em; width:300px; border-radius:10px; -webkit-box-shadow: 0px 0px 10px rgba(0,0,0,0.5) }
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+ </style>
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+ </head>
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+
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+ <body>
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+ <div id="d">
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+ <p><a href="http://github.com/mrdoob/three.js">Three.js</a> cube mapping demo
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+ <p>Original artwork by <a href="http://en.wikipedia.org/wiki/Hand_with_Reflecting_Sphere" target="_blank">M. C. Escher</a>
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+ <p>Texture by <a href="http://brainwagon.org/2002/12/05/fun-with-environment-maps/" target="_blank">Mark VandeWettering</a>
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+ </div>
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+
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+ <pre id="log"></pre>
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+
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+ <script type="text/javascript" src="../build/ThreeEscher.js"></script>
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+
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+ <script type="text/javascript" src="../src/extras/primitives/Sphere.js"></script>
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+ <script type="text/javascript" src="../src/extras/primitives/Plane.js"></script>
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+
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+ <script type="text/javascript" src="js/Stats.js"></script>
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+
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+ <script type="text/javascript">
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+
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+ var SCREEN_WIDTH = window.innerWidth;
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+ var SCREEN_HEIGHT = window.innerHeight;
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+
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+ var statsEnabled = false;
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+
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+ var container;
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+ var stats;
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+
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+ var camera;
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+ var scene;
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+ var webglRenderer;
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+
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+ var mesh, zmesh, lightMesh, geometry;
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+
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+ var directionalLight, pointLight;
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+
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+ var mouseX = 0;
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+ var mouseY = 0;
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+
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+ var windowHalfX = window.innerWidth >> 1;
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+ var windowHalfY = window.innerHeight >> 1;
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+
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+ document.addEventListener('mousemove', onDocumentMouseMove, false);
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+
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+ init();
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+
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+ loop();
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+
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+ setInterval(loop, 1000/60);
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+
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+ function addMesh( geometry, scale, x, y, z, rx, ry, rz, material ) {
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+
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+ mesh = new THREE.Mesh( geometry, material );
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+ mesh.scale.x = mesh.scale.y = mesh.scale.z = scale;
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+ mesh.position.x = x;
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+ mesh.position.y = y;
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+ mesh.position.z = z;
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+ mesh.rotation.x = rx;
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+ mesh.rotation.y = ry;
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+ mesh.rotation.z = rz;
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+ mesh.overdraw = true;
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+ mesh.updateMatrix();
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+ scene.addObject(mesh);
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+
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+ }
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+
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+ function init() {
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+
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+ container = document.createElement('div');
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+ document.body.appendChild(container);
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+
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+ camera = new THREE.Camera( 90, SCREEN_WIDTH / SCREEN_HEIGHT, 1, 100000 );
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+ camera.position.z = 3200;
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+ camera.updateMatrix();
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+
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+ scene = new THREE.Scene();
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+
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+ // LIGHTS
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+
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+ var ambient = new THREE.AmbientLight( 0x101010 );
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+ scene.addLight( ambient );
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+
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+ directionalLight = new THREE.DirectionalLight( 0xffffff );
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+ directionalLight.position.x = 1;
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+ directionalLight.position.y = 1;
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+ directionalLight.position.z = 2;
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+ directionalLight.position.normalize();
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+ scene.addLight( directionalLight );
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+
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+ pointLight = new THREE.PointLight( 0xffffff );
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+ pointLight.position.x = 0;
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+ pointLight.position.y = 0;
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+ pointLight.position.z = 0;
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+ scene.addLight( pointLight );
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+
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+ // light representation
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+ sphere = new Sphere( 100, 16, 8, 1 );
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+ lightMesh = new THREE.Mesh( sphere, new THREE.MeshBasicMaterial( { color:0xffaa00 } ) );
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+ lightMesh.scale.x = lightMesh.scale.y = lightMesh.scale.z = 0.05;
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+ lightMesh.position = pointLight.position;
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+ lightMesh.overdraw = true;
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+ lightMesh.updateMatrix();
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+ scene.addObject(lightMesh);
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+
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+ // material samples
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+ var r = "textures/cube/Escher/";
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+
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+ var urls = [ r + "px.jpg", r + "nx.jpg",
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+ r + "py.jpg", r + "ny.jpg",
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+ r + "pz.jpg", r + "nz.jpg" ];
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+
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+ var images = loadImageArray( urls );
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+
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+ var cubeMaterial = new THREE.MeshLambertMaterial( { color: 0xffffff, env_map: new THREE.TextureCube( images ) } )
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+ var sphere = new Sphere( 100, 64, 32, true );
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+
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+ createCube( 6000, images );
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+ createScene( sphere, cubeMaterial, 16 );
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+
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+ webglRenderer = new THREE.WebGLRenderer( scene );
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+ webglRenderer.setSize( SCREEN_WIDTH, SCREEN_HEIGHT );
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+ container.appendChild( webglRenderer.domElement );
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+
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+ if ( statsEnabled ) {
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+
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+ stats = new Stats();
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+ stats.domElement.style.position = 'absolute';
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+ stats.domElement.style.top = '0px';
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+ stats.domElement.style.zIndex = 100;
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+ container.appendChild( stats.domElement );
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+
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+ }
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+
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+
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+ }
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+
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+ function createCube( size, images ) {
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+
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+ var hsize = size/2, plane = new Plane( size, size ), pi2 = Math.PI/2, pi = Math.PI;
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+
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+ addMesh( plane, 1, 0, 0, -hsize, 0, 0, 0, new THREE.MeshBasicMaterial( { map: new THREE.Texture( images[5] ) } ) );
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+ addMesh( plane, 1, -hsize, 0, 0, 0, pi2, 0, new THREE.MeshBasicMaterial( { map: new THREE.Texture( images[0] ) } ) );
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+ addMesh( plane, 1, hsize, 0, 0, 0, -pi2, 0, new THREE.MeshBasicMaterial( { map: new THREE.Texture( images[1] ) } ) );
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+ addMesh( plane, 1, 0, hsize, 0, pi2, 0, pi, new THREE.MeshBasicMaterial( { map: new THREE.Texture( images[2] ) } ) );
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+ addMesh( plane, 1, 0, -hsize, 0, -pi2, 0, pi, new THREE.MeshBasicMaterial( { map: new THREE.Texture( images[3] ) } ) );
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+
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+ }
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+
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+ function createScene( geometry, m, scale ) {
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+
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+ var mesh = new THREE.Mesh( geometry, m );
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+ mesh.scale.x = mesh.scale.y = mesh.scale.z = scale;
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+ mesh.updateMatrix();
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+ scene.addObject(mesh);
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+
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+ }
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+
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+ function loadImageArray( urls ) {
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+
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+ var i, images = [];
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+
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+ images.loadCount = 0;
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+
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+ for ( i = 0; i < urls.length; ++i ) {
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+
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+ images[i] = new Image();
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+ images[i].loaded = 0;
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+ images[i].onload = function() { images.loadCount += 1; this.loaded = 1;/*log( images.loadCount );*/ }
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+ images[i].src = urls[i];
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+
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+ }
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+
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+ return images;
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+
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+ }
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+
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+ function onDocumentMouseMove(event) {
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+
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+ mouseX = ( event.clientX - windowHalfX );
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+ mouseY = ( event.clientY - windowHalfY );
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+
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+ }
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+
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+ var r = 0;
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+
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+ function loop() {
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+
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+ camera.position.x += ( mouseX - camera.position.x ) * .05;
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+ camera.position.y += ( - mouseY - camera.position.y ) * .05;
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+ camera.updateMatrix();
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+
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+ lightMesh.position.x = 1500*Math.cos(r);
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+ lightMesh.position.z = 1500*Math.sin(r);
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+ lightMesh.updateMatrix();
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+
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+ r += 0.01;
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+
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+ webglRenderer.render( scene, camera );
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+
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+ if ( statsEnabled ) stats.update();
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+
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+ }
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+
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+ function log(text) {
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+
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+ var e = document.getElementById("log");
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+ e.innerHTML = text + "<br/>" + e.innerHTML;
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+
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+ }
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+ </script>
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+
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+ </body>
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+</html>
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alteredq
