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- <!DOCTYPE html>
- <html lang="en">
- <head>
- <title>three.js webgpu - postprocessing afterimage</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">
- </head>
- <body>
- <script type="importmap">
- {
- "imports": {
- "three": "../build/three.webgpu.js",
- "three/tsl": "../build/three.webgpu.js",
- "three/addons/": "./jsm/"
- }
- }
- </script>
- <script type="module">
- import * as THREE from 'three';
- import { pass } from 'three/tsl';
- import { afterImage } from 'three/addons/tsl/display/AfterImageNode.js';
- import { GUI } from 'three/addons/libs/lil-gui.module.min.js';
- let camera, scene, renderer;
- let mesh, postProcessing, combinedPass;
- const params = {
- damp: 0.96
- };
- init();
- createGUI();
- function init() {
- renderer = new THREE.WebGPURenderer( { antialias: true } );
- renderer.setPixelRatio( window.devicePixelRatio );
- renderer.setSize( window.innerWidth, window.innerHeight );
- renderer.setAnimationLoop( animate );
- document.body.appendChild( renderer.domElement );
- camera = new THREE.PerspectiveCamera( 70, window.innerWidth / window.innerHeight, 1, 1000 );
- camera.position.z = 400;
- scene = new THREE.Scene();
- scene.fog = new THREE.Fog( 0x000000, 1, 1000 );
- const geometry = new THREE.TorusKnotGeometry( 100, 30, 100, 16 );
- const material = new THREE.MeshNormalMaterial();
- mesh = new THREE.Mesh( geometry, material );
- scene.add( mesh );
- // postprocessing
- postProcessing = new THREE.PostProcessing( renderer );
- const scenePass = pass( scene, camera );
- const scenePassColor = scenePass.getTextureNode();
- combinedPass = scenePassColor;
- combinedPass = afterImage( combinedPass, params.damp );
- postProcessing.outputNode = combinedPass;
- window.addEventListener( 'resize', onWindowResize );
- }
- function createGUI() {
- const gui = new GUI( { title: 'Damp setting' } );
- gui.add( combinedPass.damp, 'value', 0, 1 ).step( 0.001 );
- }
- function onWindowResize() {
- camera.aspect = window.innerWidth / window.innerHeight;
- camera.updateProjectionMatrix();
- renderer.setSize( window.innerWidth, window.innerHeight );
- }
- function render() {
- mesh.rotation.x += 0.0075;
- mesh.rotation.y += 0.015;
- postProcessing.render();
- }
- function animate() {
- render();
- }
- </script>
- </body>
- </html>
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