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 - postprocessing - depth-of-field</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;
				text-align: center;
			}

			a { color: #0078ff; }

			#info {
				color: #fff;
				position: relative;
				top: 0px;
				width: 50em;
				margin: 0 auto -2.1em;
				padding: 5px;
				z-index: 100;
			}
		</style>
	</head>

	<body>
		<script src="../build/three.js"></script>

		<script src="js/shaders/CopyShader.js"></script>
		<script src="js/shaders/BokehShader.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/MaskPass.js"></script>
		<script src="js/postprocessing/BokehPass.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">three.js</a> - webgl depth-of-field with bokeh example -
			shader by <a href="http://artmartinsh.blogspot.com/2010/02/glsl-lens-blur-filter-with-bokeh.html">Martins Upitis</a>
		</div>


		<script>

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

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

			}

			var container, stats;
			var camera, scene, renderer,
				materials = [], objects = [],
				singleMaterial, zmaterial = [],
				parameters, i, j, k, h, x, y, z, nobjects, cubeMaterial;

			var mouseX = 0, mouseY = 0;

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

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

			var postprocessing = {};

			init();
			animate();

			function init() {

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

				camera = new THREE.PerspectiveCamera( 70, width / height, 1, 3000 );
				camera.position.z = 200;

				scene = new THREE.Scene();

				renderer = new THREE.WebGLRenderer();
				renderer.setPixelRatio( window.devicePixelRatio );
				renderer.setSize( width, height );
				container.appendChild( renderer.domElement );

				var path = "textures/cube/SwedishRoyalCastle/";
				var format = '.jpg';
				var urls = [
					path + 'px' + format, path + 'nx' + format,
					path + 'py' + format, path + 'ny' + format,
					path + 'pz' + format, path + 'nz' + format
				];

				var textureCube = new THREE.CubeTextureLoader().load( urls );

				parameters = { color: 0xff1100, envMap: textureCube };
				cubeMaterial = new THREE.MeshBasicMaterial( parameters );

				singleMaterial = false;

				if ( singleMaterial ) zmaterial = [ cubeMaterial ];

				var geo = new THREE.SphereBufferGeometry( 1, 20, 10 );

				var xgrid = 14,
					ygrid = 9,
					zgrid = 14;

				nobjects = xgrid * ygrid * zgrid;

				var s = 60;
				var count = 0;

				for ( i = 0; i < xgrid; i ++ )
					for ( j = 0; j < ygrid; j ++ )
						for ( k = 0; k < zgrid; k ++ ) {

							var mesh;

							if ( singleMaterial ) {

								mesh = new THREE.Mesh( geo, zmaterial );

							} else {

								mesh = new THREE.Mesh( geo, new THREE.MeshBasicMaterial( parameters ) );
								materials[ count ] = mesh.material;

							}

							x = 200 * ( i - xgrid / 2 );
							y = 200 * ( j - ygrid / 2 );
							z = 200 * ( k - zgrid / 2 );

							mesh.position.set( x, y, z );
							mesh.scale.set( s, s, s );

							mesh.matrixAutoUpdate = false;
							mesh.updateMatrix();

							scene.add( mesh );
							objects.push( mesh );

							count ++;

						}

				initPostprocessing();

				renderer.autoClear = false;

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

				document.addEventListener( 'mousemove', onDocumentMouseMove, false );
				document.addEventListener( 'touchstart', onDocumentTouchStart, false );
				document.addEventListener( 'touchmove', onDocumentTouchMove, false );

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

				var effectController = {

					focus: 500.0,
					aperture:	5,
					maxblur:	1.0

				};

				var matChanger = function ( ) {

					postprocessing.bokeh.uniforms[ "focus" ].value = effectController.focus;
					postprocessing.bokeh.uniforms[ "aperture" ].value = effectController.aperture * 0.00001;
					postprocessing.bokeh.uniforms[ "maxblur" ].value = effectController.maxblur;

				};

				var gui = new dat.GUI();
				gui.add( effectController, "focus", 10.0, 3000.0, 10 ).onChange( matChanger );
				gui.add( effectController, "aperture", 0, 10, 0.1 ).onChange( matChanger );
				gui.add( effectController, "maxblur", 0.0, 3.0, 0.025 ).onChange( matChanger );
				gui.close();

				matChanger();

			}

			function onDocumentMouseMove( event ) {

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

			}

			function onDocumentTouchStart( event ) {

				if ( event.touches.length == 1 ) {

					event.preventDefault();

					mouseX = event.touches[ 0 ].pageX - windowHalfX;
					mouseY = event.touches[ 0 ].pageY - windowHalfY;

				}

			}

			function onDocumentTouchMove( event ) {

				if ( event.touches.length == 1 ) {

					event.preventDefault();

					mouseX = event.touches[ 0 ].pageX - windowHalfX;
					mouseY = event.touches[ 0 ].pageY - windowHalfY;

				}

			}

			function onWindowResize() {

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

				width = window.innerWidth;
				height = window.innerHeight;

				camera.aspect = width / height;
				camera.updateProjectionMatrix();

				renderer.setSize( width, height );
				postprocessing.composer.setSize( width, height );

			}

			function initPostprocessing() {

				var renderPass = new THREE.RenderPass( scene, camera );

				var bokehPass = new THREE.BokehPass( scene, camera, {
					focus: 1.0,
					aperture:	0.025,
					maxblur:	1.0,

					width: width,
					height: height
				} );

				var composer = new THREE.EffectComposer( renderer );

				composer.addPass( renderPass );
				composer.addPass( bokehPass );

				postprocessing.composer = composer;
				postprocessing.bokeh = bokehPass;

			}

			function animate() {

				requestAnimationFrame( animate, renderer.domElement );

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

			}

			function render() {

				var time = Date.now() * 0.00005;

				camera.position.x += ( mouseX - camera.position.x ) * 0.036;
				camera.position.y += ( - ( mouseY ) - camera.position.y ) * 0.036;

				camera.lookAt( scene.position );

				if ( ! singleMaterial ) {

					for ( i = 0; i < nobjects; i ++ ) {

						h = ( 360 * ( i / nobjects + time ) % 360 ) / 360;
						materials[ i ].color.setHSL( h, 1, 0.5 );

					}

				}

				postprocessing.composer.render( 0.1 );

			}

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