javascript
/
three.js
zrkadlo https://github.com/tazdij/three.js.git


			
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							<!DOCTYPE HTML>
<html lang="en">
	<head>
		<title>three.js - Escher cube map WebGL</title>
		<meta charset="utf-8">
		<style type="text/css">
			body {
				background:#fff;
				color:#fff;
				padding:0;
				margin:0;
				overflow:hidden;
				font-family:georgia;
				text-align:center;
			}
			a {	color: #ff0080;	text-decoration: none; }
			a:hover { color: #0080ff; }			
			#log { position:absolute; top:50px; text-align:left; display:block; z-index:100; pointer-events:none; }
			#d { text-align:center; margin:1em auto -9.0em; z-index:1000; position:relative; display:block; 
				 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) }
		</style>
	</head>

	<body>
		<div id="d">
			<p><a href="http://github.com/mrdoob/three.js">Three.js</a> cube mapping demo
			<p>Original artwork by <a href="http://en.wikipedia.org/wiki/Hand_with_Reflecting_Sphere" target="_blank">M. C. Escher</a>
			<p>Texture by <a href="http://brainwagon.org/2002/12/05/fun-with-environment-maps/" target="_blank">Mark VandeWettering</a>
		</div>

		<pre id="log"></pre>

		<script type="text/javascript" src="../build/Three.js"></script> 

		<script type="text/javascript" src="../src/extras/primitives/Sphere.js"></script>
		<script type="text/javascript" src="../src/extras/primitives/Plane.js"></script>
		<script type="text/javascript" src="../src/extras/primitives/Cube.js"></script>
		<script type="text/javascript" src="../src/extras/ImageUtils.js"></script>

		<script type="text/javascript" src="js/Stats.js"></script>

		<script type="text/javascript">

			var statsEnabled = false;

			var container, stats;

			var camera, scene, webglRenderer;

			var mesh, zmesh, lightMesh, geometry;

			var directionalLight, pointLight;

			var mouseX = 0;
			var mouseY = 0;

			var windowHalfX = window.innerWidth / 2;
			var windowHalfY = window.innerHeight / 2;

			document.addEventListener( 'mousemove', onDocumentMouseMove, false );

			init();
			setInterval( loop, 1000 / 60 );

			function init() {

				container = document.createElement('div');
				document.body.appendChild(container);

				camera = new THREE.Camera( 75, window.innerWidth / window.innerHeight, 1, 100000 );
				camera.position.z = 3200;

				scene = new THREE.Scene();


				var r = "textures/cube/Escher/";

				var urls = [ r + "px.jpg", r + "nx.jpg", 
							 r + "py.jpg", r + "ny.jpg", 
							 r + "pz.jpg", r + "nz.jpg" ];

				var images = ImageUtils.loadArray( urls );

				var textureCube = new THREE.TextureCube( images );
				var material = new THREE.MeshBasicMaterial( { color: 0xffffff, env_map: textureCube } )
				var geometry = new Sphere( 100, 96, 64, true );

				var mesh = new THREE.Mesh( geometry, material );
				mesh.scale.x = mesh.scale.y = mesh.scale.z = 16;
				scene.addObject( mesh );

				//createCubePlanes( 6000, images );
				//createCube( 6000, images );
				createCubeWebGL( 6000, textureCube );

				webglRenderer = new THREE.WebGLRenderer( scene );
				webglRenderer.setSize( window.innerWidth, window.innerHeight );
				container.appendChild( webglRenderer.domElement );

				if ( statsEnabled ) {

					stats = new Stats();
					stats.domElement.style.position = 'absolute';
					stats.domElement.style.top = '0px';
					stats.domElement.style.zIndex = 100;
					container.appendChild( stats.domElement );

				}

			}

			function addCubeMesh( geometry, scale, x, y, z, rx, ry, rz, material ) {

				mesh = new THREE.Mesh( geometry, material );
				mesh.scale.x = mesh.scale.y = mesh.scale.z = scale;
				mesh.position.x = x;
				mesh.position.y = y;
				mesh.position.z = z;
				mesh.rotation.x = rx;
				mesh.rotation.y = ry;
				mesh.rotation.z = rz;
				mesh.overdraw = true;
				mesh.updateMatrix();
				scene.addObject(mesh);

			}

			function createCube( size, images ) {
				
				var materials = [];
				materials.push( new THREE.MeshBasicMaterial( { map: new THREE.Texture( images[1] ) } ) );
				materials.push( new THREE.MeshBasicMaterial( { map: new THREE.Texture( images[0] ) } ) );
				materials.push( new THREE.MeshBasicMaterial( { map: new THREE.Texture( images[4] ) } ) );
				materials.push( new THREE.MeshBasicMaterial( { map: new THREE.Texture( images[5] ) } ) );
				materials.push( new THREE.MeshBasicMaterial( { map: new THREE.Texture( images[2] ) } ) );
				materials.push( new THREE.MeshBasicMaterial( { map: new THREE.Texture( images[3] ) } ) );

				mesh = new THREE.Mesh( new Cube( size, size, size, 1, 1, materials, true ), new THREE.MeshFaceMaterial() );
				scene.addObject( mesh );

			}

			function createCubePlanes( size, images ) {

				var hsize = size/2, plane = new Plane( size, size ), pi2 = Math.PI/2, pi = Math.PI;

				addCubeMesh( plane, 1,      0,     0,  -hsize,  0,      0,  0, new THREE.MeshBasicMaterial( { map: new THREE.Texture( images[5] ) } ) );
				addCubeMesh( plane, 1, -hsize,     0,       0,  0,    pi2,  0, new THREE.MeshBasicMaterial( { map: new THREE.Texture( images[0] ) } ) );
				addCubeMesh( plane, 1,  hsize,     0,       0,  0,   -pi2,  0, new THREE.MeshBasicMaterial( { map: new THREE.Texture( images[1] ) } ) );
				addCubeMesh( plane, 1,     0,  hsize,       0,  pi2,    0, pi, new THREE.MeshBasicMaterial( { map: new THREE.Texture( images[2] ) } ) );
				addCubeMesh( plane, 1,     0, -hsize,       0, -pi2,    0, pi, new THREE.MeshBasicMaterial( { map: new THREE.Texture( images[3] ) } ) );

			}

			function createCubeWebGL( size, textureCube ) {
				
				var material = new THREE.MeshCubeMaterial( { env_map: textureCube } );
				
				mesh = new THREE.Mesh( new Cube( size, size, size, 1, 1, null, true ), material );
				scene.addObject( mesh );
				
			}

			function onDocumentMouseMove(event) {

				mouseX = ( event.clientX - windowHalfX );
				mouseY = ( event.clientY - windowHalfY );

			}

			function loop() {

				camera.position.x += ( mouseX - camera.position.x ) * .05;
				camera.position.y += ( - mouseY - camera.position.y ) * .05;

				webglRenderer.render( scene, camera );

				if ( statsEnabled ) stats.update();

			}

			function log(text) {

				var e = document.getElementById("log");
				e.innerHTML = text + "<br/>" + e.innerHTML;

			}

		</script>

	</body>
</html>