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


			
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							<!DOCTYPE HTML>
<html lang="en">
	<head>
		<title>three.js webgl - materials - normal map</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 (<span id="description">normal + ao + displacement</span>) map demo.
			ninja head from <a href="http://developer.amd.com/archive/gpu/MeshMapper/pages/default.aspx" target="_blank">AMD GPU MeshMapper</a>

			<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> <br/>
			or Firefox 4 (about:config => webgl.mochitest_native_gl=true)<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/ThreeExtras.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 ( ! THREE.Detector.webgl ) THREE.Detector.addGetWebGLMessage();

			var statsEnabled = true;

			var container, stats, loader;

			var camera, scene, webglRenderer;

			var mesh, zmesh, lightMesh, geometry;
			var mesh1, mesh2;

			var directionalLight, pointLight, ambientLight;

			var mouseX = 0;
			var mouseY = 0;

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

			var r = 0.0;

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

			init();
			animate();

			function init() {

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

				camera = new THREE.Camera( 60, window.innerWidth / window.innerHeight, 1, 100000 );
				camera.projectionMatrix = THREE.Matrix4.makeOrtho( window.innerWidth / - 2, window.innerWidth / 2, window.innerHeight / 2, window.innerHeight / - 2, -10000, 10000 );
				camera.position.z = 6200;

				scene = new THREE.Scene();

				// LIGHTS

				ambientLight = new THREE.AmbientLight( 0x111111 );
				scene.addLight( ambientLight );

				pointLight = new THREE.PointLight( 0xffff55 );
				pointLight.position.z = 10000;
				scene.addLight( pointLight );

				directionalLight = new THREE.DirectionalLight( 0xaaaa88 );
				directionalLight.position.x = 1;
				directionalLight.position.y = 1;
				directionalLight.position.z = 0.5;
				directionalLight.position.normalize();
				scene.addLight( directionalLight );

				// light representation

				var sphere = new Sphere( 100, 16, 8 );
				lightMesh = new THREE.Mesh( sphere, new THREE.MeshBasicMaterial( { color:0xffaa00 } ) );
				lightMesh.position = pointLight.position;
				lightMesh.scale.x = lightMesh.scale.y = lightMesh.scale.z = 0.05;
				scene.addObject(lightMesh);

				// common material parameters

				var ambient = 0x050505, diffuse = 0x555555, specular = 0xaa6600, shininess = 10, scale = 23;

				// normal map shader

				var shader = ShaderUtils.lib[ "normal" ];
				var uniforms = Uniforms.clone( shader.uniforms );

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

				uniforms[ "tNormal" ].texture = ImageUtils.loadTexture( "textures/normal/ninja/normal.jpg" );
				uniforms[ "tAO" ].texture = ImageUtils.loadTexture( "textures/normal/ninja/ao.jpg" );

				uniforms[ "tDisplacement" ].texture = ImageUtils.loadTexture( "textures/normal/ninja/displacement.jpg" );
				uniforms[ "uDisplacementBias" ].value = -0.428408 * scale;
				uniforms[ "uDisplacementScale" ].value = 2.436143 * scale;

				uniforms[ "uPointLightPos" ].value = pointLight.position;
				uniforms[ "uPointLightColor" ].value = pointLight.color;

				uniforms[ "uDirLightPos" ].value = directionalLight.position;
				uniforms[ "uDirLightColor" ].value = directionalLight.color;

				uniforms[ "uAmbientLightColor" ].value = ambientLight.color;

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

				uniforms[ "uShininess" ].value = shininess;

				var parameters = { fragment_shader: shader.fragment_shader, vertex_shader: shader.vertex_shader, uniforms: uniforms };
				var material1 = new THREE.MeshShaderMaterial( parameters );

				var material2 = new THREE.MeshPhongMaterial( { color: diffuse, specular: specular, ambient: ambient, shininess: shininess } );

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

				loader.loadBinary( { model: "obj/ninja/NinjaLo_bin.js", callback: function( geometry ) { createScene( geometry, scale, material1, material2 ) } } );

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

				var description = "normal + ao" + ( webglRenderer.supportsVertexTextures() ? " + displacement" : " + <strike>displacement</strike>" );
				document.getElementById( "description" ).innerHTML = description;
				document.getElementById( "vt" ).style.display = webglRenderer.supportsVertexTextures() ? "none" : "block";

				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 createScene( geometry, scale, material1, material2 ) {

				geometry.computeTangents();

				mesh1 = SceneUtils.addMesh( scene, geometry, scale, -scale * 12, 0, 0, 0,0,0, material1 );
				mesh2 = SceneUtils.addMesh( scene, geometry, scale,  scale * 12, 0, 0, 0,0,0, material2 );

				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;

				}

				if( mesh2 ) {

					mesh2.rotation.y = ry;
					mesh2.rotation.x = rx;

				}

				lightMesh.position.x = 2500 * Math.cos( r );
				lightMesh.position.z = 2500 * Math.sin( r );

				r += 0.01;

				webglRenderer.render( scene, camera );

			}

			function log( text ) {

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

			}


		</script>

	</body>
</html>