javascript
/
three.js
peilaus alkaen https://github.com/tazdij/three.js.git


			
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							<!DOCTYPE HTML>
<html lang="en">
	<head>
		<title>three.js - geometry - vertex colors</title>
		<meta charset="utf-8">
		<style type="text/css">
			body {
				color: #808080;
				font-family:Monospace;
				font-size:13px;
				text-align:center;

				background-color: #fff;
				margin: 0px;
				overflow: hidden;
			}

			#info {
				position: absolute;
				top: 0px; width: 100%;
				padding: 5px;
			}

			#oldie {
				font-family:monospace;
				font-size:13px;

				text-align:center;
				background:#eee;
				color:#000;
				padding:1em;

				width:475px;
				margin:5em auto 0;

				display:none;
			}

			a {

				color: #0080ff;
			}

		</style>
	</head>
	<body>

		<div id="container"></div> 
		<div id="info"><a href="http://github.com/mrdoob/three.js" target="_blank">three.js</a> - vertex colors - webgl</div>

		<center>
		<div id="oldie">
			Sorry, your browser doesn't support <a href="http://khronos.org/webgl/wiki/Getting_a_WebGL_Implementation">WebGL</a>
			
			<br/>
			Please try in
			<a href="http://www.chromium.org/getting-involved/dev-channel">Chrome 9+</a> /
			<a href="http://www.mozilla.com/en-US/firefox/all-beta.html">Firefox 4+</a> /
			<a href="http://nightly.webkit.org/">Safari OSX 10.6+</a>
		</div>
		</center>

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

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

		<script type="text/javascript">

			if ( !is_browser_compatible() ) {

				document.getElementById( "oldie" ).style.display = "block";

			}

			var container, stats;

			var camera, scene, renderer;

			var mesh, mesh2, mesh3, light;

			var mouseX = 0, mouseY = 0;

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


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


			function init() {

				container = document.getElementById( 'container' );

				camera = new THREE.Camera( 20, window.innerWidth / window.innerHeight, 1, 10000 );
				camera.position.z = 1800;

				scene = new THREE.Scene();
				
				light = new THREE.DirectionalLight( 0xffffff );
				light.position.set( 0, 0, 1 );
				light.position.normalize();
				scene.addLight( light );

				var shadowMaterial = new THREE.MeshBasicMaterial( { map: ImageUtils.loadTexture( 'textures/shadow.png' ) } );
				var shadowGeo = new Plane( 300, 300, 1, 1 );
				
				mesh = new THREE.Mesh( shadowGeo, shadowMaterial );
				mesh.position.y = - 250;
				mesh.rotation.x = - 90 * Math.PI / 180;
				scene.addObject( mesh );

				mesh = new THREE.Mesh( shadowGeo, shadowMaterial );
				mesh.position.y = - 250;
				mesh.position.x = - 400;
				mesh.rotation.x = - 90 * Math.PI / 180;
				scene.addObject( mesh );

				mesh = new THREE.Mesh( shadowGeo, shadowMaterial );
				mesh.position.y = - 250;
				mesh.position.x = 400;
				mesh.rotation.x = - 90 * Math.PI / 180;
				scene.addObject( mesh );

				var color, p, colors = [], colors2 = [], colors3 = [],
					
					geometry = new Icosahedron( 1 ),
					geometry2 = new THREE.Geometry(),
					geometry3 = new THREE.Geometry();
					
				for( var i = 0; i < geometry.vertices.length; i++ ) {
				
					p = geometry.vertices[ i ].position;
					
					color = new THREE.Color( 0xffffff );
					color.setHSV( ( p.y + 1 ) / 2, 1.0, 1.0 );
					colors[ i ] = color;

					color = new THREE.Color( 0xffffff );
					color.setHSV( 0.0, ( p.y + 1 ) / 2, 1.0 );
					colors2[ i ] = color;

					color = new THREE.Color( 0xffffff );
					color.setHSV( 0.125 * i/geometry.vertices.length, 1.0, 1.0 );
					colors3[ i ] = color;

				}

				geometry3.vertices = geometry2.vertices = geometry.vertices;
				geometry3.faces = geometry2.faces = geometry.faces;
				
				geometry2.sortFacesByMaterial();
				geometry3.sortFacesByMaterial();
				
				geometry.colors = colors;
				geometry2.colors = colors2;
				geometry3.colors = colors3;
				
				var materials = [
					
					new THREE.MeshLambertMaterial( { color: 0xffffff, shading: THREE.FlatShading, vertex_colors: true } ),
					new THREE.MeshBasicMaterial( { color: 0x000000, shading: THREE.FlatShading, wireframe: true } )
					
				];
				
				mesh = new THREE.Mesh( geometry, materials  );
				mesh.position.x = -400;
				mesh.scale.x = mesh.scale.y = mesh.scale.z = 200;
				mesh.rotation.x = -1.87;
				scene.addObject( mesh );

				mesh2 = new THREE.Mesh( geometry2, materials  );
				mesh2.position.x = 400;
				mesh2.rotation.x = 0;
				mesh2.scale = mesh.scale;
				scene.addObject( mesh2 );

				mesh3 = new THREE.Mesh( geometry3, materials  );
				mesh3.position.x = 0;
				mesh3.rotation.x = 0;
				mesh3.scale = mesh.scale;
				scene.addObject( mesh3 );

				renderer = new THREE.WebGLRenderer();
				renderer.setSize( window.innerWidth, window.innerHeight );

				container.appendChild( renderer.domElement );

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

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

			}

			function onDocumentMouseMove( event ) {

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

			}

			function loop() {

				camera.position.x += ( mouseX - camera.position.x ) * 0.05;
				camera.position.y += ( - mouseY - camera.position.y ) * 0.05;

				renderer.render( scene, camera );
				stats.update();

			}

			function is_browser_compatible() {

				// WebGL support

				try { var test = new Float32Array(1); } catch(e) { return false; }

				return true;

			}

		</script>

	</body>
</html>