javascript
/
three.js
镜像来自 https://github.com/tazdij/three.js.git


			
				
					
						
						
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							<!DOCTYPE HTML>
<html lang="en">
	<head>
		<title>three.js webgl - materials - normal map [Lee Perry-Smith]</title>
		<meta charset="utf-8">
		<style type="text/css">
			body {
				background:#000;
				color:#fff;
				padding:0;
				margin:0;
				font-weight: bold;
				overflow:hidden;
			}

			a {	color: #ffffff;	}

			#info {
				position: absolute;
				top: 0px; width: 100%;
				color: #ffffff;
				padding: 5px;
				font-family:Monospace;
				font-size:13px;
				text-align:center;
				z-index:1000;
			}

			#oldie {
				background:rgb(200,100,0) !important;
				color:#fff;
			}

			#vt { display:none }
			#vt, #vt a { color:orange; }
			.code { }

			#log { position:absolute; top:50px; text-align:left; display:block; z-index:100 }
		</style>
	</head>

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

		<div id="info">
			<a href="http://github.com/mrdoob/three.js" target="_blank">three.js</a> - webgl normalmap demo.
			<a href="http://www.ir-ltd.net/infinite-3d-head-scan-released/" target="_blank">Lee Perry-Smith</a> head.

			<div id="vt">displacement mapping needs vertex textures (GPU with Shader Model 3.0)<br/>
			on Windows use <span class="code">Chrome --use-gl=desktop</span> or Firefox 4<br/>
			please star this <a href="http://code.google.com/p/chromium/issues/detail?id=52497">Chrome issue</a> to get ANGLE support
			</div>
		</div>

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

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

		<script type="text/javascript">

			if ( ! Detector.webgl ) Detector.addGetWebGLMessage();

			var statsEnabled = true;

			var container, stats, loader;

			var camera, scene, webglRenderer;

			var mesh, zmesh, lightMesh, geometry;
			var mesh1;

			var directionalLight, pointLight, ambientLight;

			var mouseX = 0;
			var mouseY = 0;

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

			init();
			animate();

			function init() {

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

				camera = new THREE.Camera( 50, window.innerWidth / window.innerHeight, 1, 10000 );
				camera.position.z = 900;

				scene = new THREE.Scene();

				// LIGHTS

				ambientLight = new THREE.AmbientLight( 0x444444 );
				scene.add( ambientLight );

				pointLight = new THREE.PointLight( 0xffffff );
				pointLight.position.z = 600;

				scene.add( pointLight );

				directionalLight = new THREE.DirectionalLight( 0xffffff );
				directionalLight.position.x = 1;
				directionalLight.position.y = 1;
				directionalLight.position.z = - 1;
				directionalLight.position.normalize();
				scene.add( directionalLight );

				// material parameters

				var ambient = 0x444444, diffuse = 0x888888, specular = 0x080810, shininess = 2;

				var shader = THREE.ShaderUtils.lib[ "normal" ];
				var uniforms = THREE.UniformsUtils.clone( shader.uniforms );
 
				uniforms[ "tNormal" ].texture = THREE.ImageUtils.loadTexture( "obj/leeperrysmith/Infinite-Level_02_Tangent_SmoothUV.jpg" );
				uniforms[ "uNormalScale" ].value = - 0.75;

				uniforms[ "tDiffuse" ].texture = THREE.ImageUtils.loadTexture( "obj/leeperrysmith/Map-COL.jpg" );

				uniforms[ "enableAO" ].value = false;
				uniforms[ "enableDiffuse" ].value = true;
				uniforms[ "enableSpecular" ].value = false;

				uniforms[ "uDiffuseColor" ].value.setHex( diffuse );
				uniforms[ "uSpecularColor" ].value.setHex( specular );
				uniforms[ "uAmbientColor" ].value.setHex( ambient );

				uniforms[ "uShininess" ].value = shininess;

				var parameters = { fragmentShader: shader.fragmentShader, vertexShader: shader.vertexShader, uniforms: uniforms, lights: true };
				var material = new THREE.MeshShaderMaterial( parameters );

				loader = new THREE.JSONLoader( true );
				document.body.appendChild( loader.statusDomElement );

				loader.load( { model: "obj/leeperrysmith/LeePerrySmith.js", callback: function( geometry ) { createScene( geometry, 100, material ) } } );

				webglRenderer = new THREE.WebGLRenderer();
				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 );

				}

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

			}

			function createScene( geometry, scale, material ) {

				geometry.computeTangents();

				mesh1 = new THREE.Mesh( geometry, material );
				mesh1.position.y = - 50;
				mesh1.scale.x = mesh1.scale.y = mesh1.scale.z = scale;
				scene.add( mesh1 );

				loader.statusDomElement.style.display = "none";

			}

			function onDocumentMouseMove(event) {

				mouseX = ( event.clientX - windowHalfX ) * 10;
				mouseY = ( event.clientY - windowHalfY ) * 10;

			}

			//

			function animate() {

				requestAnimationFrame( animate );

				render();
				if ( statsEnabled ) stats.update();

			}

			function render() {

				var ry = mouseX * 0.0003, rx = mouseY * 0.0003;

				if( mesh1 ) {

					mesh1.rotation.y = ry;
					mesh1.rotation.x = rx;

				}

				webglRenderer.render( scene, camera );

			}

			function log( text ) {

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

			}

		</script>

	</body>
</html>