javascript
/
three.js
зеркало из https://github.com/tazdij/three.js.git


			
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							<!DOCTYPE HTML>
<html lang="en">
	<head>
		<title>three.js webgl - postprocessing</title>
		<meta charset="utf-8">
		<style type="text/css">
		    body {
			color: #000;
			font-family:Monospace;
			font-size:13px;
			text-align:center;
			font-weight: bold;

			background-color: #fff;
			margin: 0px;
			overflow: hidden;
		    }

		    #info {
					color:#000;
			position: absolute;
			top: 0px; width: 100%;
			padding: 5px;

		    }

		    a { color: red; }

		</style>
	</head>
	<body>

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

		<!-- Time modulated procedural color fragment shader -->
		<script id="fs-colors" type="x-shader/x-fragment">
			varying vec2 vUv;
			uniform float time;

			void main(void) {

				gl_FragColor = vec4( time, vUv.x, vUv.y, 1.0 );

			}
		</script>

		<!-- Generic vertex shader -->
		<script id="vs-generic" type="x-shader/x-vertex">
			varying vec2 vUv;

			void main() {

				vUv = vec2( uv.x, 1.0 - uv.y );
				gl_Position = projectionMatrix * modelViewMatrix * vec4( position, 1.0 );

			}
		</script>


		<script type="text/javascript">

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

			var container, stats;

			var cameraOrtho, cameraPerspective, sceneModel, sceneScreen, sceneBG, renderer, mesh, directionalLight;

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

			var rtTexture, materialColor, materialScreen, materialFilm, materialConvolution, blurx, blury, quadBG, quadScreen;

			var delta = 0.01;

			init();
			animate();

			function init() {

				container = document.getElementById( 'container' );

				cameraOrtho = new THREE.Camera();
				cameraOrtho.projectionMatrix = THREE.Matrix4.makeOrtho( window.innerWidth / - 2, window.innerWidth / 2, window.innerHeight / 2, window.innerHeight / - 2, -10000, 10000 );
				cameraOrtho.position.z = 100;

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

				sceneModel = new THREE.Scene();
				sceneScreen = new THREE.Scene();
				sceneBG = new THREE.Scene();

				directionalLight = new THREE.DirectionalLight( 0xffffff );
				directionalLight.position.x = 0;
				directionalLight.position.y = 0;
				directionalLight.position.z = 1;
				directionalLight.position.normalize();
				sceneModel.addLight( directionalLight );

				rtTexture1 = new THREE.RenderTarget( window.innerWidth, window.innerHeight, { min_filter: THREE.LinearFilter, mag_filter: THREE.NearestFilter } );
				rtTexture2 = new THREE.RenderTarget( 256, 512, { min_filter: THREE.LinearFilter, mag_filter: THREE.LinearFilter } );
				rtTexture3 = new THREE.RenderTarget( 512, 256, { min_filter: THREE.LinearFilter, mag_filter: THREE.LinearFilter } );

				materialColor = new THREE.MeshShaderMaterial( {

					uniforms: { time: { type: "f", value: 0.0 } },
					vertex_shader: getText( 'vs-generic' ),
					fragment_shader: getText( 'fs-colors' ),
					depth_test: false

				} );

				var screen_shader = ShaderUtils.lib["screen"];
				var screen_uniforms = Uniforms.clone( screen_shader.uniforms );

				screen_uniforms["tDiffuse"].texture = rtTexture1;
				screen_uniforms["opacity"].value = 0.4;

				materialScreen = new THREE.MeshShaderMaterial( {

					uniforms: screen_uniforms,
					vertex_shader: screen_shader.vertex_shader,
					fragment_shader: screen_shader.fragment_shader,
					blending: THREE.AdditiveBlending

				} );

				var film_shader = ShaderUtils.lib["film"];
				var film_uniforms = Uniforms.clone( film_shader.uniforms );

				film_uniforms["tDiffuse"].texture = rtTexture1;

				materialFilm = new THREE.MeshShaderMaterial( {

					uniforms: film_uniforms,
					vertex_shader: film_shader.vertex_shader,
					fragment_shader: film_shader.fragment_shader

				} );

				var increment = 0.001953125;

				blurx = new THREE.Vector2( increment, 0.0 ),
				blury = new THREE.Vector2( 0.0, increment );

				var convolution_shader = ShaderUtils.lib["convolution"];
				var convolution_uniforms = Uniforms.clone( convolution_shader.uniforms );

				convolution_uniforms["tDiffuse"].texture = rtTexture1;
				convolution_uniforms["uImageIncrement"].value = blurx;
				convolution_uniforms["cKernel"].value = ShaderUtils.buildKernel( 4.0 );

				materialConvolution = new THREE.MeshShaderMaterial( {

					uniforms: convolution_uniforms,
					vertex_shader:   "#define KERNEL_SIZE 25.0\n" + convolution_shader.vertex_shader,
					fragment_shader: "#define KERNEL_SIZE 25\n"   + convolution_shader.fragment_shader

				} );

				var plane = new Plane( window.innerWidth, window.innerHeight );

				quadBG = new THREE.Mesh( plane, materialColor );
				quadBG.position.z = -500;
				sceneBG.addObject( quadBG );

				loader = new THREE.Loader( true );
				document.body.appendChild( loader.statusDomElement );
				loader.loadAscii( { model: "obj/leeperrysmith/LeePerrySmith.js", callback: function( geometry ) { createMesh( geometry, sceneModel, 100 ) } } );

				quadScreen = new THREE.Mesh( plane, materialConvolution );
				quadScreen.position.z = -100;
				sceneScreen.addObject( quadScreen );

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

				stats = new Stats();
				stats.domElement.style.position = 'absolute';
				stats.domElement.style.top = '0px';
				//container.appendChild( stats.domElement );

			}

			function getText( id ) {

				return document.getElementById( id ).textContent;

			}

			function createMesh( geometry, scene, scale ) {

				geometry.computeTangents();

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

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

				uniforms[ "tNormal" ].texture = ImageUtils.loadTexture( "obj/leeperrysmith/Infinite-Level_02_Tangent_SmoothUV.jpg" );
				uniforms[ "uNormalScale" ].value = - 0.75;

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

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

				uniforms[ "uPointLightPos" ].value = new THREE.Vector3(0,0,0);
				uniforms[ "uPointLightColor" ].value = new THREE.Color(1,0,0);

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

				uniforms[ "uAmbientLightColor" ].value = new THREE.Color(0,0,0);

				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 mat2 = new THREE.MeshShaderMaterial( parameters );

				mesh = new THREE.Mesh( geometry, mat2 );
				mesh.position.x = 0;
				mesh.position.y = -50;
				mesh.position.z = 0;
				mesh.scale.x = mesh.scale.y = mesh.scale.z = scale;
				mesh.updateMatrix();
				scene.addObject( mesh );

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

			}

			//

			function animate() {

				requestAnimationFrame( animate );

				render();
				stats.update();

			}

			function render() {

				var time = new Date().getTime() * 0.0004;

				if ( mesh ) mesh.rotation.y = -time;

				if ( materialColor.uniforms.time.value > 1 || materialColor.uniforms.time.value < 0 ) {

					delta *= -1;

				}

				materialColor.uniforms.time.value += delta/2;
				materialFilm.uniforms.time.value += delta;

				renderer.clear();

				// Render scene into texture

				// background

				renderer.render( sceneBG, cameraOrtho, rtTexture1 );

				// model

				renderer.render( sceneModel, cameraPerspective, rtTexture1 );

				// Render quad with blured scene into texture (convolution pass 1)

				quadScreen.materials = [ materialConvolution ];
				materialConvolution.uniforms.tDiffuse.texture = rtTexture1;
				materialConvolution.uniforms.uImageIncrement.value = blurx;
				renderer.render( sceneScreen, cameraOrtho, rtTexture2 );

				// Render quad with blured scene into texture (convolution pass 2)

				materialConvolution.uniforms.tDiffuse.texture = rtTexture2;
				materialConvolution.uniforms.uImageIncrement.value = blury;
				renderer.render( sceneScreen, cameraOrtho, rtTexture3 );

				// Render original scene with superimposed blur into texture

				quadScreen.materials = [ materialScreen ];

				materialScreen.uniforms.tDiffuse.texture = rtTexture3;
				materialScreen.uniforms.opacity.value = 1.0;
				renderer.render( sceneScreen, cameraOrtho, rtTexture1, false );

				// Render final scene to the screen with film shader

				materialFilm.uniforms.tDiffuse.texture = rtTexture1;
				quadScreen.materials = [ materialFilm ];
				renderer.render( sceneScreen, cameraOrtho );

			}


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