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200 lines
4.8 KiB
200 lines
4.8 KiB
<!DOCTYPE html>
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<html lang="en">
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<head>
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<title>three.js WebGL - postprocessing - FXAA</title>
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<meta charset="UTF-8">
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<meta name="viewport" content="width=device-width, user-scalable=no, minimum-scale=1.0, maximum-scale=1.0">
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<style>
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html, body {
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height: 100%;
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}
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body {
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background: #ffffff;
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padding: 0;
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margin: 0;
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font-family: Monospace;
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font-size: 13px;
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overflow: hidden;
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}
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#info {
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top: 0px;
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width: 100%;
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color: #000000;
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margin: 6px 0px;
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text-align: center;
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}
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#info a {
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color: #000000;
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}
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#container {
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width: 100%;
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height: calc(100% - 80px);
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}
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</style>
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</head>
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<body>
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<div id="info">
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<a href="https://threejs.org" target="_blank" rel="noopener">three.js</a> - postprocessing - FXAA<br />
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Left scene processed with FXAA, right scene is rendered without anti-aliasing.
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</div>
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<div id="container">
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</div>
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<script src="../build/three.js"></script>
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<script src="js/WebGL.js"></script>
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<script src="js/shaders/CopyShader.js"></script>
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<script src="js/postprocessing/EffectComposer.js"></script>
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<script src="js/postprocessing/RenderPass.js"></script>
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<script src="js/postprocessing/ShaderPass.js"></script>
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<script src="js/shaders/FXAAShader.js"></script>
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<script>
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if ( WEBGL.isWebGLAvailable() === false ) {
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document.body.appendChild( WEBGL.getWebGLErrorMessage() );
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}
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var camera, scene, renderer, clock, group;
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var composer1, composer2, fxaaPass;
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init();
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animate();
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function init() {
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var container = document.getElementById( 'container' );
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camera = new THREE.PerspectiveCamera( 45, ( window.innerWidth * 0.5 ) / window.innerHeight, 1, 2000 );
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camera.position.z = 500;
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scene = new THREE.Scene();
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scene.background = new THREE.Color( 0xffffff );
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scene.fog = new THREE.Fog( 0xcccccc, 100, 1500 );
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clock = new THREE.Clock();
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//
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var hemiLight = new THREE.HemisphereLight( 0xffffff, 0x444444 );
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hemiLight.position.set( 0, 1000, 0 );
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scene.add( hemiLight );
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var dirLight = new THREE.DirectionalLight( 0xffffff, 0.8 );
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dirLight.position.set( - 3000, 1000, - 1000 );
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scene.add( dirLight );
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//
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group = new THREE.Group();
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var geometry = new THREE.TetrahedronBufferGeometry( 10 );
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var material = new THREE.MeshStandardMaterial( { color: 0xee0808, flatShading: true } );
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for ( var i = 0; i < 100; i ++ ) {
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var mesh = new THREE.Mesh( geometry, material );
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mesh.position.x = Math.random() * 500 - 250;
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mesh.position.y = Math.random() * 500 - 250;
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mesh.position.z = Math.random() * 500 - 250;
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mesh.scale.setScalar( Math.random() * 2 + 1 );
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mesh.rotation.x = Math.random() * Math.PI;
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mesh.rotation.y = Math.random() * Math.PI;
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mesh.rotation.z = Math.random() * Math.PI;
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group.add( mesh );
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}
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scene.add( group );
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//
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renderer = new THREE.WebGLRenderer();
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renderer.autoClear = false;
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renderer.setPixelRatio( window.devicePixelRatio );
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renderer.setSize( window.innerWidth, window.innerHeight );
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container.appendChild( renderer.domElement );
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//
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var renderPass = new THREE.RenderPass( scene, camera );
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//
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fxaaPass = new THREE.ShaderPass( THREE.FXAAShader );
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var pixelRatio = renderer.getPixelRatio();
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fxaaPass.material.uniforms[ 'resolution' ].value.x = 1 / ( window.innerWidth * pixelRatio );
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fxaaPass.material.uniforms[ 'resolution' ].value.y = 1 / ( window.innerHeight * pixelRatio );
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composer1 = new THREE.EffectComposer( renderer );
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composer1.addPass( renderPass );
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composer1.addPass( fxaaPass );
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//
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var copyPass = new THREE.ShaderPass( THREE.CopyShader );
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composer2 = new THREE.EffectComposer( renderer );
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composer2.addPass( renderPass );
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composer2.addPass( copyPass );
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//
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window.addEventListener( 'resize', onWindowResize, false );
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}
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function onWindowResize() {
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camera.aspect = ( window.innerWidth * 0.5 ) / window.innerHeight;
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camera.updateProjectionMatrix();
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renderer.setSize( window.innerWidth, window.innerHeight );
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composer1.setSize( window.innerWidth, window.innerHeight );
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composer2.setSize( window.innerWidth, window.innerHeight );
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var pixelRatio = renderer.getPixelRatio();
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fxaaPass.material.uniforms[ 'resolution' ].value.x = 1 / ( window.innerWidth * pixelRatio );
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fxaaPass.material.uniforms[ 'resolution' ].value.y = 1 / ( window.innerHeight * pixelRatio );
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}
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function animate() {
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requestAnimationFrame( animate );
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var halfWidth = window.innerWidth / 2;
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group.rotation.y += clock.getDelta() * 0.1;
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renderer.setViewport( 0, 0, halfWidth, window.innerHeight );
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composer1.render();
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renderer.setViewport( halfWidth, 0, halfWidth, window.innerHeight );
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composer2.render();
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}
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</script>
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</body>
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</html>
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