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- <!DOCTYPE html>
- <html lang="en">
- <head>
- <title>three.js webgl - postprocessing manual msaa</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 {
- margin: 0px;
- background-color: #000;
- overflow: hidden;
- font-family:Monospace;
- font-size:13px;
- margin: 0px;
- text-align:center;
- overflow: hidden;
- }
- #info {
- color: #fff;
- position: absolute;
- top: 10px;
- width: 100%;
- text-align: center;
- display:block;
- }
- </style>
- </head>
- <body>
- <div id="info">
- <a href="http://threejs.org" target="_blank">three.js</a> - Manual Multi-Sample Anti-Aliasing (MSAA) pass by <a href="https://clara.io" target="_blank">Ben Houston</a></br></br>
- WARNING: High MSAA samples count will lead</br>to discretization effects when used with 8-bit per channel Render Buffers.
- </div>
- <div id="container"></div>
- <script src="../build/three.min.js"></script>
- <script src="js/libs/stats.min.js"></script>
- <script src="js/libs/dat.gui.min.js"></script>
- <script src="js/postprocessing/MSAAPass.js"></script>
- <script src="js/shaders/CopyShader.js"></script>
- <script src="js/shaders/CompositeShader.js"></script>
- <script src="js/postprocessing/EffectComposer.js"></script>
- <script src="js/postprocessing/RenderPass.js"></script>
- <script src="js/postprocessing/MaskPass.js"></script>
- <script src="js/postprocessing/ShaderPass.js"></script>
- <script>
- var camera, scene, renderer, composer, copyPass, msaaPass;
- var geometry, material, gui, object, stats;
- var param = { MSAASampleLevel: 2 };
- var textureLoader = new THREE.TextureLoader();
- container = document.getElementById( "container" );
- stats = new Stats();
- stats.domElement.style.position = 'absolute';
- stats.domElement.style.top = '0px';
- container.appendChild( stats.domElement );
- textureLoader.load( "./textures/brick_diffuse.jpg", function( meshTexture ) {
- init( meshTexture );
- animate();
- clearGui();
- });
- function clearGui() {
- if ( gui ) gui.destroy();
- gui = new dat.GUI();
- var example = gui.add( param, 'MSAASampleLevel', {
- 'Level 0: 1 Sample': 0,
- 'Level 1: 2 Samples': 1,
- 'Level 2: 4 Samples': 2,
- 'Level 3: 8 Samples': 3,
- 'Level 4: 16 Samples': 4,
- 'Level 5: 32 Samples': 5
- } ).onFinishChange( function() {
- if( massPass ) {
- massPass.sampleLevel = param.MSAASampleLevel;
- }
- } );
- gui.open();
- }
- function init( meshTexture ) {
- renderer = new THREE.WebGLRenderer( { antialias: false } );
- renderer.setPixelRatio( window.devicePixelRatio );
- renderer.setSize( window.innerWidth, window.innerHeight );
- document.body.appendChild( renderer.domElement );
- camera = new THREE.PerspectiveCamera( 70, window.innerWidth / window.innerHeight, 1, 1000 );
- camera.position.z = 400;
- scene = new THREE.Scene();
- geometry = new THREE.BoxGeometry( 200, 200, 200 );
- material = new THREE.MeshBasicMaterial( { map: meshTexture } );
- meshTexture.anisotropy = 0;
- object = new THREE.Mesh( geometry, material );
- scene.add( object );
- // postprocessing
- composer = new THREE.EffectComposer( renderer );
- massPass = new THREE.MSAAPass( scene, camera );
- massPass.sampleLevel = param.MSAASampleLevel;
- composer.addPass( massPass );
- copyPass = new THREE.ShaderPass( THREE.CopyShader );
- copyPass.renderToScreen = true;
- composer.addPass( copyPass );
- window.addEventListener( 'resize', onWindowResize, false );
- }
- function onWindowResize() {
- var width = window.innerWidth;
- var height = window.innerHeight;
- camera.aspect = width / height;
- camera.updateProjectionMatrix();
- renderer.setSize( width, height );
- var pixelRatio = renderer.getPixelRatio();
- var newWidth = Math.floor( width / pixelRatio ) || 1;
- var newHeight = Math.floor( height / pixelRatio ) || 1;
- composer.setSize( newWidth, newHeight );
- if( msaaPass ) msaaPass.setSize( newWidth, newHeight );
- }
- function animate() {
- requestAnimationFrame( animate );
- object.rotation.x += 0.005;
- object.rotation.y += 0.01;
- composer.render();
- stats.update();
- }
- </script>
- <div>
- </body>
- </html>
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