javascript
/
three.js
镜像自地址 https://github.com/tazdij/three.js.git


			
				
					
						
						
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							<!DOCTYPE html>
<html lang="en">
	<head>
		<title>three.js webgl - parallax mapping</title>
		<meta charset="utf-8">
		<meta name="viewport" content="width=device-width, user-scalable=no, minimum-scale=1.0, maximum-scale=1.0">
		<link type="text/css" rel="stylesheet" href="main.css">
	</head>
	<body>

		<div id="info">
			<a href="http://threejs.org">Three.js</a> parallax mapping <br />
			Oryginal shaders authors:
			<a href="http://sunandblackcat.com/tipFullView.php?topicid=28">Igor Dyhta</a>,
			<a href="http://mmikkelsen3d.blogspot.sk/2012/02/parallaxpoc-mapping-and-no-tangent.html">Morten S. Mikkelsen</a><br />
			Texture by <a href="http://agf81.deviantart.com/">AGF81</a>
		</div>

		<script src="../build/three.js"></script>
		<script src="js/WebGL.js"></script>
		<script src="js/libs/dat.gui.min.js"></script>
		<script src="js/libs/stats.min.js"></script>

		<script src="js/controls/OrbitControls.js"></script>

		<script src="js/shaders/ParallaxShader.js"></script>

		<script>

			if ( WEBGL.isWebGLAvailable() === false ) {

				document.body.appendChild( WEBGL.getWebGLErrorMessage() );

			}

			var camera, scene, material, renderer, stats;

			var effectController = {
				'mode': 'relief',
				'scale': 0.005,
				'minLayers': 20,
				'maxLayers': 25
			};

			init();
			initGUI();
			animate();

			function init() {

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

				camera = new THREE.PerspectiveCamera( 45, window.innerWidth / window.innerHeight, 0.01, 10 );
				camera.position.z = 2;
				scene = new THREE.Scene();

				//

				var shader = THREE.ParallaxShader;
				var uniforms = THREE.UniformsUtils.clone( shader.uniforms );
				var parameters = {
					fragmentShader: shader.fragmentShader,
					vertexShader: shader.vertexShader,
					uniforms: uniforms
				};

				//

				var textureLoader = new THREE.TextureLoader();

				material = new THREE.ShaderMaterial( parameters );
				material.map = textureLoader.load( 'textures/brick_diffuse.jpg' );
				material.bumpMap = textureLoader.load( 'textures/brick_bump.jpg' );
				material.map.anisotropy = 4;
				material.bumpMap.anisotropy = 4;
				uniforms[ 'map' ].value = material.map;
				uniforms[ 'bumpMap' ].value = material.bumpMap;

				//

				var geometry = new THREE.BoxBufferGeometry( 1.0, 1.0, 1.0 );
				var mesh = new THREE.Mesh( geometry, material );
				scene.add( mesh );

				//

				renderer = new THREE.WebGLRenderer( { antialias: true } );
				renderer.setPixelRatio( window.devicePixelRatio );
				renderer.setSize( window.innerWidth, window.innerHeight );
				container.appendChild( renderer.domElement );

				renderer.gammaInput = true;
				renderer.gammaOutput = true;

				//

				var controls = new THREE.OrbitControls( camera, renderer.domElement );

				//

				stats = new Stats();
				container.appendChild( stats.dom );

				//

				window.addEventListener( 'resize', onWindowResize, false );

			}

			function guiChanged() {

				var uniforms = material.uniforms;

				uniforms[ 'parallaxScale' ].value = - 1.0 * effectController.scale;
				uniforms[ 'parallaxMinLayers' ].value = effectController.minLayers;
				uniforms[ 'parallaxMaxLayers' ].value = effectController.maxLayers;

				material.defines = {};
				material.defines[ THREE.ParallaxShader.modes[ effectController.mode ] ] = '';
				material.needsUpdate = true;

			}

			function initGUI() {

				var gui = new dat.GUI();

				gui.add( effectController, 'mode', Object.keys( THREE.ParallaxShader.modes ) ).onChange( guiChanged );
				gui.add( effectController, 'scale', 0.0, 0.01, 0.001 ).onChange( guiChanged );
				gui.add( effectController, 'minLayers', 1.0, 30, 1 ).onChange( guiChanged );
				gui.add( effectController, 'maxLayers', 1.0, 30, 1 ).onChange( guiChanged );

				guiChanged();

			}

			function onWindowResize() {

				camera.aspect = window.innerWidth / window.innerHeight;
				camera.updateProjectionMatrix();

				renderer.setSize( window.innerWidth, window.innerHeight );

			}

			function animate() {

				requestAnimationFrame( animate );

				render();
				stats.update();

			}

			function render() {

				renderer.render( scene, camera );

			}

		</script>

	</body>
</html>