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218 lines
5.4 KiB
HTML
218 lines
5.4 KiB
HTML
2 months ago
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<!DOCTYPE html>
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<html lang="en">
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<head>
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<title>three.js webgpu - postprocessing manual ssaa</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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<link type="text/css" rel="stylesheet" href="main.css">
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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> - Unbiased Manual Supersampling Anti-Aliasing (SSAA) pass by <a href="https://clara.io" target="_blank" rel="noopener">Ben Houston</a>
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</div>
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<script type="importmap">
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{
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"imports": {
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"three": "../build/three.webgpu.js",
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"three/webgpu": "../build/three.webgpu.js",
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"three/tsl": "../build/three.tsl.js",
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"three/addons/": "./jsm/"
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}
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}
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</script>
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<script type="module">
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import * as THREE from 'three';
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import { ssaaPass } from 'three/addons/tsl/display/SSAAPassNode.js';
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import { Timer } from 'three/addons/misc/Timer.js';
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import Stats from 'three/addons/libs/stats.module.js';
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import { GUI } from 'three/addons/libs/lil-gui.module.min.js';
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let scene, mesh, renderer, postProcessing;
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let camera, ssaaRenderPass;
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let gui, stats, timer;
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const params = {
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sampleLevel: 3,
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camera: 'perspective',
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clearColor: 'black',
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clearAlpha: 1.0,
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viewOffsetX: 0,
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autoRotate: true
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};
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init();
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clearGui();
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function clearGui() {
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if ( gui ) gui.destroy();
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gui = new GUI();
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gui.add( params, 'sampleLevel', {
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'Level 0: 1 Sample': 0,
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'Level 1: 2 Samples': 1,
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'Level 2: 4 Samples': 2,
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'Level 3: 8 Samples': 3,
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'Level 4: 16 Samples': 4,
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'Level 5: 32 Samples': 5
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} );
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gui.add( params, 'clearColor', [ 'black', 'white', 'blue', 'green', 'red' ] );
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gui.add( params, 'clearAlpha', 0, 1 );
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gui.add( params, 'viewOffsetX', - 100, 100 );
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gui.add( params, 'autoRotate' );
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gui.open();
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}
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function init() {
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const width = window.innerWidth;
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const height = window.innerHeight;
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renderer = new THREE.WebGPURenderer();
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renderer.setPixelRatio( window.devicePixelRatio );
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renderer.setSize( window.innerWidth, window.innerHeight );
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renderer.setAnimationLoop( animate );
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document.body.appendChild( renderer.domElement );
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stats = new Stats();
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document.body.appendChild( stats.dom );
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timer = new Timer();
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timer.connect( document );
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camera = new THREE.PerspectiveCamera( 65, width / height, 3, 10 );
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camera.position.z = 7;
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camera.setViewOffset( width, height, params.viewOffsetX, 0, width, height );
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scene = new THREE.Scene();
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const group = new THREE.Group();
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scene.add( group );
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const light = new THREE.PointLight( 0xefffef, 500 );
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light.position.z = 10;
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light.position.y = - 10;
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light.position.x = - 10;
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scene.add( light );
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const light2 = new THREE.PointLight( 0xffefef, 500 );
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light2.position.z = 10;
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light2.position.x = - 10;
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light2.position.y = 10;
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scene.add( light2 );
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const light3 = new THREE.PointLight( 0xefefff, 500 );
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light3.position.z = 10;
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light3.position.x = 10;
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light3.position.y = - 10;
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scene.add( light3 );
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const light4 = new THREE.AmbientLight( 0xffffff, 0.2 );
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scene.add( light4 );
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const geometry = new THREE.SphereGeometry( 3, 48, 24 );
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const material = new THREE.MeshStandardMaterial();
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mesh = new THREE.InstancedMesh( geometry, material, 120 );
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const dummy = new THREE.Mesh();
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const color = new THREE.Color();
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for ( let i = 0; i < mesh.count; i ++ ) {
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dummy.position.x = Math.random() * 4 - 2;
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dummy.position.y = Math.random() * 4 - 2;
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dummy.position.z = Math.random() * 4 - 2;
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dummy.rotation.x = Math.random();
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dummy.rotation.y = Math.random();
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dummy.rotation.z = Math.random();
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dummy.scale.setScalar( Math.random() * 0.2 + 0.05 );
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dummy.updateMatrix();
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color.setHSL( Math.random(), 1.0, 0.3 );
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mesh.setMatrixAt( i, dummy.matrix );
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mesh.setColorAt( i, color );
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}
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scene.add( mesh );
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// postprocessing
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postProcessing = new THREE.PostProcessing( renderer );
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ssaaRenderPass = ssaaPass( scene, camera );
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const scenePassColor = ssaaRenderPass.getTextureNode();
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postProcessing.outputNode = scenePassColor;
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window.addEventListener( 'resize', onWindowResize );
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}
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function onWindowResize() {
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const width = window.innerWidth;
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const height = window.innerHeight;
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camera.aspect = width / height;
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camera.setViewOffset( width, height, params.viewOffsetX, 0, width, height );
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camera.updateProjectionMatrix();
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renderer.setSize( width, height );
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}
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function animate() {
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timer.update();
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if ( params.autoRotate ) {
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const delta = timer.getDelta();
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mesh.rotation.x += delta * 0.25;
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mesh.rotation.y += delta * 0.5;
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}
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let newColor = ssaaRenderPass.clearColor;
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switch ( params.clearColor ) {
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case 'blue': newColor = 0x0000ff; break;
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case 'red': newColor = 0xff0000; break;
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case 'green': newColor = 0x00ff00; break;
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case 'white': newColor = 0xffffff; break;
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case 'black': newColor = 0x000000; break;
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}
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ssaaRenderPass.clearColor.set( newColor );
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ssaaRenderPass.clearAlpha = params.clearAlpha;
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ssaaRenderPass.sampleLevel = params.sampleLevel;
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camera.view.offsetX = params.viewOffsetX;
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postProcessing.render();
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stats.update();
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}
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</script>
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</body>
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</html>
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