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+<html lang="en">
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+ <head>
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+ <title>three.js - WebGPU - Depth Texture</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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+ <!-- WebGPU (For Chrome 94-101), expires 09/01/2022 -->
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+ <meta http-equiv="origin-trial" content="AoS1pSJwCV3KRe73TO0YgJkK9FZ/qhmvKeafztp0ofiE8uoGrnKzfxGVKKICvoBfL8dgE0zpkp2g/oEJNS0fDgkAAABeeyJvcmlnaW4iOiJodHRwczovL3RocmVlanMub3JnOjQ0MyIsImZlYXR1cmUiOiJXZWJHUFUiLCJleHBpcnkiOjE2NTI4MzE5OTksImlzU3ViZG9tYWluIjp0cnVlfQ==">
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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> WebGPU - Depth Texture
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+ </div>
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+
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+ <script async src="https://unpkg.com/[email protected]/dist/es-module-shims.js"></script>
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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.module.js",
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+ "three-nodes/": "./jsm/nodes/"
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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';
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+ import * as Nodes from 'three-nodes/Nodes.js';
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+
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+ import WebGPU from './jsm/capabilities/WebGPU.js';
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+ import WebGPURenderer from './jsm/renderers/webgpu/WebGPURenderer.js';
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+ import WebGPUTextureRenderer from './jsm/renderers/webgpu/WebGPUTextureRenderer.js';
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+
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+ import { smoothstep, negate, positionView, invert } from 'three-nodes/ShaderNode.js';
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+
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+ import { OrbitControls } from './jsm/controls/OrbitControls.js';
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+
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+ let camera, scene, controls, renderer;
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+
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+ let cameraFX, sceneFX, textureRenderer;
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+
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+ const dpr = window.devicePixelRatio;
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+
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+ init().then( animate ).catch( error );
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+
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+ async function init() {
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+
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+ if ( WebGPU.isAvailable() === false ) {
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+
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+ document.body.appendChild( WebGPU.getErrorMessage() );
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+
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+ throw new Error( 'No WebGPU support' );
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+
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+ }
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+
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+ camera = new THREE.PerspectiveCamera( 70, window.innerWidth / window.innerHeight, 0.01, 30 );
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+ camera.position.z = 4;
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+
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+ scene = new THREE.Scene();
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+ scene.background = new THREE.Color( 0x222222 );
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+
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+ // depth material
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+
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+ const material = new Nodes.MeshBasicNodeMaterial();
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+ material.colorNode = invert( smoothstep( camera.near, camera.far, negate( positionView.z ) ) );
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+
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+ //
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+
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+ const geometry = new THREE.TorusKnotGeometry( 1, 0.3, 128, 64 );
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+
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+ const count = 50;
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+ const scale = 5;
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+
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+ for ( let i = 0; i < count; i ++ ) {
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+
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+ const r = Math.random() * 2.0 * Math.PI;
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+ const z = ( Math.random() * 2.0 ) - 1.0;
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+ const zScale = Math.sqrt( 1.0 - z * z ) * scale;
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+
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+ const mesh = new THREE.Mesh( geometry, material );
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+ mesh.position.set(
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+ Math.cos( r ) * zScale,
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+ Math.sin( r ) * zScale,
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+ z * scale
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+ );
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+ mesh.rotation.set( Math.random(), Math.random(), Math.random() );
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+ scene.add( mesh );
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+
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+ }
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+
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+ //
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+
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+ renderer = new WebGPURenderer();
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+ renderer.setPixelRatio( dpr );
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+ renderer.setSize( window.innerWidth, window.innerHeight );
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+ document.body.appendChild( renderer.domElement );
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+
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+ textureRenderer = new WebGPUTextureRenderer( renderer );
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+ textureRenderer.setSize( window.innerWidth * dpr, window.innerHeight * dpr );
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+
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+ window.addEventListener( 'resize', onWindowResize );
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+
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+ // FX
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+
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+ cameraFX = new THREE.OrthographicCamera( - 1, 1, 1, - 1, 0, 1 );
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+ sceneFX = new THREE.Scene();
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+
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+ const geometryFX = new THREE.PlaneGeometry( 2, 2 );
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+
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+ //
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+
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+ const materialFX = new Nodes.MeshBasicNodeMaterial();
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+ materialFX.colorNode = new Nodes.TextureNode( textureRenderer.getTexture() );
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+
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+ const quad = new THREE.Mesh( geometryFX, materialFX );
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+ sceneFX.add( quad );
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+
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+ //
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+
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+ controls = new OrbitControls( camera, renderer.domElement );
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+ controls.enableDamping = true;
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+
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+ //
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+
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+ return renderer.init();
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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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+ textureRenderer.setSize( window.innerWidth * dpr, window.innerHeight * dpr );
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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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+ requestAnimationFrame( animate );
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+
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+ textureRenderer.render( scene, camera );
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+ renderer.render( sceneFX, cameraFX );
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+
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+ }
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+
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+ function error( error ) {
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+
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+ console.error( error );
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+
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+ }
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+
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+ </script>
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+ </body>
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+</html>
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sunag
