123456789101112131415161718192021222324252627282930313233343536373839404142434445464748495051525354555657585960616263646566676869707172737475767778798081828384858687888990919293949596979899100101102103104105106107108109110111112113114115116117118119120121122123124125126127128129130131132133134135136137138139140141142143144145146147148149150151152153154155156157158159160161162163164165166167168169170171172173174175176177178179180181182183184185186187188189190191192193194 |
- <!DOCTYPE html>
- <html lang="en">
- <head>
- <title>three.js WebGL 2 - Multisampled Renderbuffers</title>
- <meta charset="UTF-8">
- <meta name="viewport" content="width=device-width, user-scalable=no, minimum-scale=1.0, maximum-scale=1.0">
- <link type="text/css" rel="stylesheet" href="main.css">
- <style>
- body {
- background-color: #fff;
- color: #222;
- }
- a {
- color: #08f;
- }
- #container {
- position: absolute;
- top: 70px;
- width: 100%;
- bottom: 0px;
- }
- </style>
- </head>
- <body>
- <div id="info">
- <a href="https://threejs.org" target="_blank" rel="noopener">three.js</a> - Multisampled Renderbuffers<br />
- Left: WebGLRenderTarget, Right: WebGLRenderTarget (multisampled).
- </div>
- <div id="container">
- </div>
- <script type="importmap">
- {
- "imports": {
- "three": "../build/three.module.js",
- "three/addons/": "./jsm/"
- }
- }
- </script>
- <script type="module">
- import * as THREE from 'three';
- import { EffectComposer } from 'three/addons/postprocessing/EffectComposer.js';
- import { RenderPass } from 'three/addons/postprocessing/RenderPass.js';
- import { OutputPass } from 'three/addons/postprocessing/OutputPass.js';
- import { GUI } from 'three/addons/libs/lil-gui.module.min.js';
- let camera, renderer, group, container;
- let composer1, composer2;
- const params = {
- animate: true,
- };
- init();
- function init() {
- container = document.getElementById( 'container' );
- camera = new THREE.PerspectiveCamera( 45, container.offsetWidth / container.offsetHeight, 10, 2000 );
- camera.position.z = 500;
- const scene = new THREE.Scene();
- scene.background = new THREE.Color( 0xffffff );
- scene.fog = new THREE.Fog( 0xcccccc, 100, 1500 );
- //
- const hemiLight = new THREE.HemisphereLight( 0xffffff, 0x222222, 5 );
- hemiLight.position.set( 1, 1, 1 );
- scene.add( hemiLight );
- //
- group = new THREE.Group();
- const geometry = new THREE.SphereGeometry( 10, 64, 40 );
- const material = new THREE.MeshLambertMaterial( {
- color: 0xee0808,
- polygonOffset: true,
- polygonOffsetFactor: 1, // positive value pushes polygon further away
- polygonOffsetUnits: 1
- } );
- const material2 = new THREE.MeshBasicMaterial( { color: 0xffffff, wireframe: true } );
- for ( let i = 0; i < 50; i ++ ) {
- const mesh = new THREE.Mesh( geometry, material );
- mesh.position.x = Math.random() * 600 - 300;
- mesh.position.y = Math.random() * 600 - 300;
- mesh.position.z = Math.random() * 600 - 300;
- mesh.rotation.x = Math.random();
- mesh.rotation.z = Math.random();
- mesh.scale.setScalar( Math.random() * 5 + 5 );
- group.add( mesh );
- const mesh2 = new THREE.Mesh( geometry, material2 );
- mesh2.position.copy( mesh.position );
- mesh2.rotation.copy( mesh.rotation );
- mesh2.scale.copy( mesh.scale );
- group.add( mesh2 );
- }
- scene.add( group );
- //
- renderer = new THREE.WebGLRenderer();
- renderer.setPixelRatio( window.devicePixelRatio );
- renderer.setSize( container.offsetWidth, container.offsetHeight );
- renderer.setAnimationLoop( animate );
- renderer.autoClear = false;
- container.appendChild( renderer.domElement );
- //
- const size = renderer.getDrawingBufferSize( new THREE.Vector2() );
- const renderTarget = new THREE.WebGLRenderTarget( size.width, size.height, { samples: 4, type: THREE.HalfFloatType } );
- const renderPass = new RenderPass( scene, camera );
- const outputPass = new OutputPass();
- //
- composer1 = new EffectComposer( renderer );
- composer1.addPass( renderPass );
- composer1.addPass( outputPass );
- //
- composer2 = new EffectComposer( renderer, renderTarget );
- composer2.addPass( renderPass );
- composer2.addPass( outputPass );
- //
- const gui = new GUI();
- gui.add( params, 'animate' );
- //
- window.addEventListener( 'resize', onWindowResize );
- }
- function onWindowResize() {
- camera.aspect = container.offsetWidth / container.offsetHeight;
- camera.updateProjectionMatrix();
- renderer.setSize( container.offsetWidth, container.offsetHeight );
- composer1.setSize( container.offsetWidth, container.offsetHeight );
- composer2.setSize( container.offsetWidth, container.offsetHeight );
- }
- function animate() {
- const halfWidth = container.offsetWidth / 2;
- if ( params.animate ) {
- group.rotation.y += 0.002;
- }
- renderer.setScissorTest( true );
- renderer.setScissor( 0, 0, halfWidth - 1, container.offsetHeight );
- composer1.render();
- renderer.setScissor( halfWidth, 0, halfWidth, container.offsetHeight );
- composer2.render();
- renderer.setScissorTest( false );
- }
- </script>
- </body>
- </html>
|