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 - post processing - Scalable Ambient Occlusion (SAO)</title>
		<meta charset="utf-8">
		<meta name="viewport" content="width=device-width, user-scalable=no, minimum-scale=1.0, maximum-scale=1.0">
		<style>
			body {
				background-color: #000000;
				margin: 0px;
				overflow: hidden;
				font-family:Monospace;
				font-size:13px;
				text-align:center;
				font-weight: bold;
			}

			a {
				color:#00ff78;
			}

			#info {
				color: #fff;
				position: absolute;
				top: 0px;
				width: 100%;
				padding: 5px;
			}
			.dg.ac {
				z-index: 1 !important; /* FIX DAT.GUI */
			}
		</style>
	</head>
	<body>
		<script src="../build/three.js"></script>

		<script src="js/postprocessing/EffectComposer.js"></script>
		<script src="js/postprocessing/RenderPass.js"></script>
		<script src="js/postprocessing/ShaderPass.js"></script>
		<script src="js/postprocessing/SAOPass.js"></script>

		<script src="js/shaders/CopyShader.js"></script>
		<script src="js/shaders/SAOShader.js"></script>
		<script src="js/shaders/DepthLimitedBlurShader.js"></script>
		<script src="js/shaders/UnpackDepthRGBAShader.js"></script>

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

		<div id="info">
			<a href="http://threejs.org" target="_blank" rel="noopener noreferrer">three.js</a> - Scalable Ambient Occlusion (SAO) shader by <a href="http://clara.io">Ben Houston</a> / Post-processing pass by <a href="http://ludobaka.github.io">Ludobaka</a>
		</div>

		<script>

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

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

			}

			var container, stats;
			var camera, scene, renderer;
			var depthMaterial, saoMaterial, saoModulateMaterial, normalMaterial, vBlurMaterial, hBlurMaterial, copyMaterial;
			var depthRenderTarget, normalRenderTarget, saoRenderTarget, beautyRenderTarget, blurIntermediateRenderTarget;
            var composer, renderPass, saoPass, copyPass;
			var group;
			var params = {
				output: 0,
				saoBias: 0.5,
				saoIntensity: 0.25,
				saoScale: 1,
				saoKernelRadius: 100,
				saoMinResolution: 0,
				saoBlur: true,
				saoBlurRadius: 12,
				saoBlurStdDev: 6,
				saoBlurDepthCutoff: 0.01
			};
			var supportsDepthTextureExtension = false;
			var isWebGL2 = false;

			init();
			animate();

			function init() {

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

				var width = window.innerWidth || 1;
				var height = window.innerHeight || 1;
				var devicePixelRatio = window.devicePixelRatio || 1;

				renderer = new THREE.WebGLRenderer( { antialias: true } );
				renderer.setClearColor( 0x000000 );
				renderer.setPixelRatio( devicePixelRatio );
				renderer.setSize( width, height );
				document.body.appendChild( renderer.domElement );

				camera = new THREE.PerspectiveCamera( 65, width / height, 3, 10 );
				camera.position.z = 7;

				scene = new THREE.Scene();

				group = new THREE.Object3D();
				scene.add( group );

				var light = new THREE.PointLight( 0xddffdd, 0.8 );
				light.position.z = 70;
				light.position.y = -70;
				light.position.x = -70;
				scene.add( light );

				var light2 = new THREE.PointLight( 0xffdddd, 0.8 );
				light2.position.z = 70;
				light2.position.x = -70;
				light2.position.y = 70;
				scene.add( light2 );

				var light3 = new THREE.PointLight( 0xddddff, 0.8 );
				light3.position.z = 70;
				light3.position.x = 70;
				light3.position.y = -70;
				scene.add( light3 );

				var light3 = new THREE.AmbientLight( 0xffffff, 0.05 );
				scene.add( light3 );

				var geometry = new THREE.SphereBufferGeometry( 3, 48, 24 );

				for ( var i = 0; i < 120; i ++ ) {

					var material = new THREE.MeshStandardMaterial();
					material.roughness = 0.5 * Math.random() + 0.25;
					material.metalness = 0;
					material.color.setHSL( Math.random(), 1.0, 0.3 );

					var mesh = new THREE.Mesh( geometry, material );
					mesh.position.x = Math.random() * 4 - 2;
					mesh.position.y = Math.random() * 4 - 2;
					mesh.position.z = Math.random() * 4 - 2;
					mesh.rotation.x = Math.random();
					mesh.rotation.y = Math.random();
					mesh.rotation.z = Math.random();

					mesh.scale.x = mesh.scale.y = mesh.scale.z = Math.random() * 0.2 + 0.05;
					group.add( mesh );

				}

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

				composer = new THREE.EffectComposer( renderer );
				renderPass = new THREE.RenderPass( scene, camera );
				composer.addPass( renderPass );
				saoPass = new THREE.SAOPass( scene, camera, false, true );
				saoPass.renderToScreen = true;
				composer.addPass( saoPass );

				// Init gui
				var gui = new dat.GUI();
				gui.add( saoPass.params, 'output', {
					'Beauty': THREE.SAOPass.OUTPUT.Beauty,
					'Beauty+SAO': THREE.SAOPass.OUTPUT.Default,
					'SAO': THREE.SAOPass.OUTPUT.SAO,
					'Depth': THREE.SAOPass.OUTPUT.Depth,
					'Normal': THREE.SAOPass.OUTPUT.Normal
				} ).onChange( function ( value ) { saoPass.params.output = parseInt( value ); } );
				gui.add( saoPass.params, 'saoBias', - 1, 1 );
				gui.add( saoPass.params, 'saoIntensity', 0, 1 );
				gui.add( saoPass.params, 'saoScale', 0, 10 );
				gui.add( saoPass.params, 'saoKernelRadius', 1, 100 );
				gui.add( saoPass.params, 'saoMinResolution', 0, 1 );
				gui.add( saoPass.params, 'saoBlur' );
				gui.add( saoPass.params, 'saoBlurRadius', 0, 200 );
				gui.add( saoPass.params, 'saoBlurStdDev', 0.5, 150 );
				gui.add( saoPass.params, 'saoBlurDepthCutoff', 0.0, 0.1 );

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

			}

			function onWindowResize() {

				var width = window.innerWidth || 1;
				var height = window.innerHeight || 1;

				camera.aspect = width / height;
				camera.updateProjectionMatrix();
				renderer.setSize( width, height );

				composer.setSize( width, height );


			}

			function animate() {

				requestAnimationFrame( animate );

				stats.begin();
				render();
				stats.end();

			}

			function render() {

				var timer = performance.now();
				group.rotation.x = timer * 0.0002;
				group.rotation.y = timer * 0.0001;

				composer.render();

			}

		</script>
	</body>
</html>