mirror of
https://github.com/wahyd4/three.js.git
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alteredq
cff95a119c
That was much tougher than expected. No wonder other WebGL video demos around the web are broken. Firefox OpenGL / ANGLE and Chrome OpenGL were ok, getting it to work in Chrome ANGLE was rather tricky. Please report if something got broken. I tried to go through all textured examples but I may have missed something. If you want to refresh texture on WebGL side, you just set "texture.needsUpdate" flag (if you use Loader or ImageUtils.loadTexture / loadTextureCube everything is taken care of). Flag has to be set also for canvas-based textures, sorry no escaping this :(. I tried and it lead to ugly problems (e.g. AO minecraft demo mixes several asynchronously loaded and generated images into one texture, with autodetect always something was broken). "needsUpdate" should work also on cube textures, though it's not tested yet (also there I didn't put hack for Chrome ANGLE).
321 lines
9.3 KiB
HTML
321 lines
9.3 KiB
HTML
<!DOCTYPE HTML>
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<html lang="en">
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<head>
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<title>three.js webgl - postprocessing</title>
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<meta charset="utf-8">
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<style type="text/css">
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body {
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color: #000;
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font-family:Monospace;
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font-size:13px;
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text-align:center;
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font-weight: bold;
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background-color: #fff;
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margin: 0px;
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overflow: hidden;
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}
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#info {
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color:#000;
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position: absolute;
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top: 0px; width: 100%;
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padding: 5px;
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}
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a { color: red; }
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</style>
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</head>
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<body>
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<div id="container"></div>
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<div id="info">
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<a href="http://github.com/mrdoob/three.js" target="_blank">three.js</a> - webgl postprocessing example -
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<a href="http://www.ir-ltd.net/infinite-3d-head-scan-released/" target="_blank">Lee Perry-Smith</a> head
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</div>
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<script type="text/javascript" src="../build/ThreeExtras.js"></script>
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<script type="text/javascript" src="js/RequestAnimationFrame.js"></script>
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<script type="text/javascript" src="js/Stats.js"></script>
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<!-- Time modulated procedural color fragment shader -->
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<script id="fs-colors" type="x-shader/x-fragment">
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varying vec2 vUv;
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uniform float time;
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void main(void) {
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gl_FragColor = vec4( time, vUv.x, vUv.y, 1.0 );
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}
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</script>
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<!-- Generic vertex shader -->
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<script id="vs-generic" type="x-shader/x-vertex">
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varying vec2 vUv;
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void main() {
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vUv = vec2( uv.x, 1.0 - uv.y );
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gl_Position = projectionMatrix * modelViewMatrix * vec4( position, 1.0 );
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}
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</script>
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<script type="text/javascript">
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if ( ! THREE.Detector.webgl ) THREE.Detector.addGetWebGLMessage();
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var container, stats;
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var cameraOrtho, cameraPerspective, sceneModel, sceneScreen, sceneBG, renderer, mesh, directionalLight;
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var windowHalfX = window.innerWidth / 2;
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var windowHalfY = window.innerHeight / 2;
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var rtTexture, materialColor, materialScreen, materialFilm, materialConvolution, blurx, blury, quadBG, quadScreen;
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var delta = 0.01;
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init();
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animate();
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function init() {
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container = document.getElementById( 'container' );
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cameraOrtho = new THREE.Camera();
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cameraOrtho.projectionMatrix = THREE.Matrix4.makeOrtho( window.innerWidth / - 2, window.innerWidth / 2, window.innerHeight / 2, window.innerHeight / - 2, -10000, 10000 );
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cameraOrtho.position.z = 100;
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cameraPerspective = new THREE.Camera( 50, window.innerWidth / window.innerHeight, 1, 10000 );
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cameraPerspective.position.z = 900;
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sceneModel = new THREE.Scene();
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sceneScreen = new THREE.Scene();
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sceneBG = new THREE.Scene();
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directionalLight = new THREE.DirectionalLight( 0xffffff );
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directionalLight.position.x = 0;
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directionalLight.position.y = 0;
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directionalLight.position.z = 1;
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directionalLight.position.normalize();
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sceneModel.addLight( directionalLight );
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rtTexture1 = new THREE.RenderTarget( window.innerWidth, window.innerHeight, { min_filter: THREE.LinearFilter, mag_filter: THREE.NearestFilter } );
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rtTexture2 = new THREE.RenderTarget( 256, 512, { min_filter: THREE.LinearFilter, mag_filter: THREE.LinearFilter } );
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rtTexture3 = new THREE.RenderTarget( 512, 256, { min_filter: THREE.LinearFilter, mag_filter: THREE.LinearFilter } );
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materialColor = new THREE.MeshShaderMaterial( {
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uniforms: { time: { type: "f", value: 0.0 } },
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vertex_shader: getText( 'vs-generic' ),
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fragment_shader: getText( 'fs-colors' ),
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depth_test: false
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} );
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var screen_shader = ShaderUtils.lib["screen"];
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var screen_uniforms = Uniforms.clone( screen_shader.uniforms );
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screen_uniforms["tDiffuse"].texture = rtTexture1;
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screen_uniforms["opacity"].value = 0.4;
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materialScreen = new THREE.MeshShaderMaterial( {
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uniforms: screen_uniforms,
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vertex_shader: screen_shader.vertex_shader,
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fragment_shader: screen_shader.fragment_shader,
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blending: THREE.AdditiveBlending
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} );
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var film_shader = ShaderUtils.lib["film"];
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var film_uniforms = Uniforms.clone( film_shader.uniforms );
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film_uniforms["tDiffuse"].texture = rtTexture1;
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film_uniforms["nIntensity"].value = 0.25;
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film_uniforms["sIntensity"].value = 0.5;
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materialFilm = new THREE.MeshShaderMaterial( {
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uniforms: film_uniforms,
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vertex_shader: film_shader.vertex_shader,
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fragment_shader: film_shader.fragment_shader
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} );
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var increment = 0.001953125;
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blurx = new THREE.Vector2( increment, 0.0 ),
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blury = new THREE.Vector2( 0.0, increment );
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var convolution_shader = ShaderUtils.lib["convolution"];
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var convolution_uniforms = Uniforms.clone( convolution_shader.uniforms );
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convolution_uniforms["tDiffuse"].texture = rtTexture1;
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convolution_uniforms["uImageIncrement"].value = blurx;
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convolution_uniforms["cKernel"].value = ShaderUtils.buildKernel( 4.0 );
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materialConvolution = new THREE.MeshShaderMaterial( {
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uniforms: convolution_uniforms,
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vertex_shader: "#define KERNEL_SIZE 25.0\n" + convolution_shader.vertex_shader,
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fragment_shader: "#define KERNEL_SIZE 25\n" + convolution_shader.fragment_shader
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} );
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var plane = new Plane( window.innerWidth, window.innerHeight );
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quadBG = new THREE.Mesh( plane, materialColor );
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quadBG.position.z = -500;
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sceneBG.addObject( quadBG );
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loader = new THREE.Loader( true );
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document.body.appendChild( loader.statusDomElement );
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loader.loadAscii( { model: "obj/leeperrysmith/LeePerrySmith.js", callback: function( geometry ) { createMesh( geometry, sceneModel, 100 ) } } );
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quadScreen = new THREE.Mesh( plane, materialConvolution );
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quadScreen.position.z = -100;
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sceneScreen.addObject( quadScreen );
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renderer = new THREE.WebGLRenderer();
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renderer.setSize( window.innerWidth, window.innerHeight );
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renderer.autoClear = false;
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container.appendChild( renderer.domElement );
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stats = new Stats();
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stats.domElement.style.position = 'absolute';
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stats.domElement.style.top = '0px';
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//container.appendChild( stats.domElement );
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}
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function getText( id ) {
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return document.getElementById( id ).textContent;
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}
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function createMesh( geometry, scene, scale ) {
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geometry.computeTangents();
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var ambient = 0x444444, diffuse = 0x888888, specular = 0x080810, shininess = 2;
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var shader = ShaderUtils.lib[ "normal" ];
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var uniforms = Uniforms.clone( shader.uniforms );
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uniforms[ "tNormal" ].texture = ImageUtils.loadTexture( "obj/leeperrysmith/Infinite-Level_02_Tangent_SmoothUV.jpg" );
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uniforms[ "uNormalScale" ].value = - 0.75;
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uniforms[ "tDiffuse" ].texture = ImageUtils.loadTexture( "obj/leeperrysmith/Map-COL.jpg" );
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uniforms[ "enableAO" ].value = false;
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uniforms[ "enableDiffuse" ].value = true;
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uniforms[ "uPointLightPos" ].value = new THREE.Vector3(0,0,0);
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uniforms[ "uPointLightColor" ].value = new THREE.Color(1,0,0);
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uniforms[ "uDirLightPos" ].value = directionalLight.position;
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uniforms[ "uDirLightColor" ].value = directionalLight.color;
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uniforms[ "uAmbientLightColor" ].value = new THREE.Color(0,0,0);
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uniforms[ "uDiffuseColor" ].value.setHex( diffuse );
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uniforms[ "uSpecularColor" ].value.setHex( specular );
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uniforms[ "uAmbientColor" ].value.setHex( ambient );
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uniforms[ "uShininess" ].value = shininess;
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var parameters = { fragment_shader: shader.fragment_shader, vertex_shader: shader.vertex_shader, uniforms: uniforms };
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var mat2 = new THREE.MeshShaderMaterial( parameters );
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mesh = new THREE.Mesh( geometry, mat2 );
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mesh.position.x = 0;
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mesh.position.y = -50;
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mesh.position.z = 0;
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mesh.scale.x = mesh.scale.y = mesh.scale.z = scale;
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mesh.updateMatrix();
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scene.addObject( mesh );
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loader.statusDomElement.style.display = "none";
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}
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//
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function animate() {
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requestAnimationFrame( animate );
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render();
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stats.update();
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}
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function render() {
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var time = new Date().getTime() * 0.0004;
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if ( mesh ) mesh.rotation.y = -time;
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if ( materialColor.uniforms.time.value > 1 || materialColor.uniforms.time.value < 0 ) {
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delta *= -1;
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}
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materialColor.uniforms.time.value += delta/2;
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materialFilm.uniforms.time.value += delta;
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renderer.clear();
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// Render scene into texture
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// background
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renderer.render( sceneBG, cameraOrtho, rtTexture1 );
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// model
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renderer.render( sceneModel, cameraPerspective, rtTexture1 );
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// Render quad with blured scene into texture (convolution pass 1)
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quadScreen.materials = [ materialConvolution ];
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materialConvolution.uniforms.tDiffuse.texture = rtTexture1;
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materialConvolution.uniforms.uImageIncrement.value = blurx;
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renderer.render( sceneScreen, cameraOrtho, rtTexture2 );
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// Render quad with blured scene into texture (convolution pass 2)
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materialConvolution.uniforms.tDiffuse.texture = rtTexture2;
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materialConvolution.uniforms.uImageIncrement.value = blury;
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renderer.render( sceneScreen, cameraOrtho, rtTexture3 );
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// Render original scene with superimposed blur into texture
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quadScreen.materials = [ materialScreen ];
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materialScreen.uniforms.tDiffuse.texture = rtTexture3;
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materialScreen.uniforms.opacity.value = 1.0;
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renderer.render( sceneScreen, cameraOrtho, rtTexture1, false );
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// Render final scene to the screen with film shader
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materialFilm.uniforms.tDiffuse.texture = rtTexture1;
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quadScreen.materials = [ materialFilm ];
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renderer.render( sceneScreen, cameraOrtho );
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}
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</script>
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</body>
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</html>
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