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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 - radial blur</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="example.css">
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+ </head>
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+
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+ <body>
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+
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+ <div id="info">
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+ <a href="https://threejs.org/" target="_blank" rel="noopener" class="logo-link"></a>
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+
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+ <div class="title-wrapper">
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+ <a href="https://threejs.org/" target="_blank" rel="noopener">three.js</a><span>Radial Blur</span>
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+ </div>
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+
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+ <small>Radial Blur for faked light shafts.</small>
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+ </div>
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+
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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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+
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+ <script type="module">
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+
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+ import * as THREE from 'three/webgpu';
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+ import { float, int, pass, uniform } from 'three/tsl';
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+ import { radialBlur } from 'three/addons/tsl/display/radialBlur.js';
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+
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+ import { Inspector } from 'three/addons/inspector/Inspector.js';
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+
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+ const params = {
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+ enabled: true,
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+ animated: true
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+ };
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+
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+ let camera, scene, renderer, timer, group;
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+ let postProcessing;
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+
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+ init();
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+
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+ async function init() {
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+
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+ camera = new THREE.PerspectiveCamera( 45, window.innerWidth / window.innerHeight, 0.1, 200 );
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+ camera.position.z = 50;
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+
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+ scene = new THREE.Scene();
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+ scene.background = new THREE.Color( 0x000000 );
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+
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+ timer = new THREE.Timer();
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+
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+ //
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+
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+ const hemiLight = new THREE.HemisphereLight( 0xffffff, 0x8d8d8d );
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+ hemiLight.position.set( 0, 1000, 0 );
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+ scene.add( hemiLight );
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+
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+ const pointLight = new THREE.PointLight( 0xffffff, 1000 );
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+ pointLight.position.set( 0, 0, 0 );
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+ scene.add( pointLight );
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+
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+ //
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+
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+ group = new THREE.Group();
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+
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+ const geometry = new THREE.TetrahedronGeometry();
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+ const material = new THREE.MeshStandardMaterial( { flatShading: true } );
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+
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+ const mesh = new THREE.InstancedMesh( geometry, material, 100 );
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+ const dummy = new THREE.Object3D();
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+ const col = new THREE.Color();
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+ const center = new THREE.Vector2();
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+
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+ for ( let i = 0; i < mesh.count; i ++ ) {
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+
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+ dummy.position.x = Math.random() * 50 - 25;
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+ dummy.position.y = Math.random() * 50 - 25;
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+ dummy.position.z = Math.random() * 50 - 25;
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+
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+ center.set( dummy.position.x, dummy.position.y );
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+
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+ // make sure tetrahedrons are not positioned at the origin
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+
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+ if ( center.length() < 6 ) {
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+
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+ center.normalize().multiplyScalar( 6 );
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+ dummy.position.x = center.x;
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+ dummy.position.y = center.y;
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+
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+ }
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+
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+ dummy.scale.setScalar( Math.random() * 2 + 1 );
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+
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+ dummy.rotation.x = Math.random() * Math.PI;
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+ dummy.rotation.y = Math.random() * Math.PI;
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+ dummy.rotation.z = Math.random() * Math.PI;
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+
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+ dummy.updateMatrix();
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+ mesh.setMatrixAt( i, dummy.matrix );
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+
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+ col.setHSL( 0.55 + ( i / mesh.count ) * 0.15, 1, 0.2 );
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+
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+ mesh.setColorAt( i, col );
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+
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+ }
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+
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+ group.add( mesh );
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+ scene.add( group );
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+
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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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+ renderer.inspector = new Inspector();
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+ renderer.toneMapping = THREE.NeutralToneMapping;
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+ document.body.appendChild( renderer.domElement );
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+
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+ // post processing
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+
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+ postProcessing = new THREE.PostProcessing( renderer );
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+
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+ const scenePass = pass( scene, camera );
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+
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+ const weightUniform = uniform( float( 0.9 ) );
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+ const decayUniform = uniform( float( 0.95 ) );
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+ const exposureUniform = uniform( int( 5 ) );
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+ const countUniform = uniform( int( 32 ) );
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+
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+ const blurPass = radialBlur( scenePass, { weight: weightUniform, decay: decayUniform, count: countUniform, exposure: exposureUniform } );
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+
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+ postProcessing.outputNode = blurPass;
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+
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+ //
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+
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+ window.addEventListener( 'resize', onWindowResize );
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+
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+ //
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+
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+ const gui = renderer.inspector.createParameters( 'Settings' );
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+ gui.add( weightUniform, 'value', 0, 1 ).name( 'weight' );
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+ gui.add( decayUniform, 'value', 0, 1 ).name( 'decay' );
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+ gui.add( countUniform, 'value', 16, 64, 1 ).name( 'sample count' );
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+ gui.add( exposureUniform, 'value', 1, 10 ).name( 'exposure' );
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+ gui.add( params, 'enabled' ).onChange( ( value ) => {
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+
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+ if ( value === true ) {
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+
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+ postProcessing.outputNode = blurPass;
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+
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+ } else {
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+
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+ postProcessing.outputNode = scenePass;
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+
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+ }
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+
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+ postProcessing.needsUpdate = true;
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+
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+ } );
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+ gui.add( params, 'animated' );
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+
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+ }
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+
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+ function onWindowResize() {
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+
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+ camera.aspect = window.innerWidth / window.innerHeight;
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+ camera.updateProjectionMatrix();
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+
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+ renderer.setSize( window.innerWidth, window.innerHeight );
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+
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+ }
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+
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+ //
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+
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+ function animate() {
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+
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+ timer.update();
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+ const delta = timer.getDelta();
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+
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+ if ( params.animated === true ) {
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+
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+ group.rotation.y += delta * 0.1;
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+
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+ }
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+
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+ postProcessing.render();
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+
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+ }
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+
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+ </script>
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+
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+ </body>
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+</html>
|
Michael Herzog
