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- <!DOCTYPE html>
- <html lang="en">
- <head>
- <title>three.js webgpu - mrt</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>
- <div id="info">
- <a href="https://threejs.org" target="_blank" rel="noopener">three.js</a> webgpu - mrt<br />
- Final / Beauty / Normal / Emissive / Diffuse
- </div>
- <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 { output, transformedNormalView, pass, step, diffuseColor, emissive, directionToColor, screenUV, mix, mrt, Fn } from 'three/tsl';
- import { RGBELoader } from 'three/addons/loaders/RGBELoader.js';
- import { OrbitControls } from 'three/addons/controls/OrbitControls.js';
- import { GLTFLoader } from 'three/addons/loaders/GLTFLoader.js';
- let camera, scene, renderer;
- let postProcessing;
- init();
- function init() {
- const container = document.createElement( 'div' );
- document.body.appendChild( container );
- // scene
- camera = new THREE.PerspectiveCamera( 45, window.innerWidth / window.innerHeight, 0.25, 20 );
- camera.position.set( - 1.8, 0.6, 2.7 );
- scene = new THREE.Scene();
- new RGBELoader()
- .setPath( 'textures/equirectangular/' )
- .load( 'royal_esplanade_1k.hdr', function ( texture ) {
- texture.mapping = THREE.EquirectangularReflectionMapping;
- scene.background = texture;
- scene.environment = texture;
- // model
- const loader = new GLTFLoader().setPath( 'models/gltf/DamagedHelmet/glTF/' );
- loader.load( 'DamagedHelmet.gltf', function ( gltf ) {
- scene.add( gltf.scene );
- } );
- } );
- // renderer
- renderer = new THREE.WebGPURenderer( { antialias: true } );
- renderer.setPixelRatio( window.devicePixelRatio );
- renderer.setSize( window.innerWidth, window.innerHeight );
- renderer.setAnimationLoop( render );
- renderer.toneMapping = THREE.ACESFilmicToneMapping;
- container.appendChild( renderer.domElement );
- // post processing
- const scenePass = pass( scene, camera, { minFilter: THREE.NearestFilter, magFilter: THREE.NearestFilter } );
- scenePass.setMRT( mrt( {
- output: output,
- normal: directionToColor( transformedNormalView ),
- diffuse: diffuseColor,
- emissive: emissive
- } ) );
- // optimize textures
- const normalTexture = scenePass.getTexture( 'normal' );
- const diffuseTexture = scenePass.getTexture( 'diffuse' );
- const emissiveTexture = scenePass.getTexture( 'emissive' );
- normalTexture.type = diffuseTexture.type = emissiveTexture.type = THREE.UnsignedByteType;
- // post processing - mrt
- postProcessing = new THREE.PostProcessing( renderer );
- postProcessing.outputColorTransform = false;
- postProcessing.outputNode = Fn( () => {
- const output = scenePass.getTextureNode( 'output' ); // output name is optional here
- const normal = scenePass.getTextureNode( 'normal' );
- const diffuse = scenePass.getTextureNode( 'diffuse' );
- const emissive = scenePass.getTextureNode( 'emissive' );
- const out = mix( output.renderOutput(), output, step( 0.2, screenUV.x ) );
- const nor = mix( out, normal, step( 0.4, screenUV.x ) );
- const emi = mix( nor, emissive, step( 0.6, screenUV.x ) );
- const dif = mix( emi, diffuse, step( 0.8, screenUV.x ) );
- return dif;
- } )();
- // controls
- const controls = new OrbitControls( camera, renderer.domElement );
- controls.minDistance = 2;
- controls.maxDistance = 10;
- controls.target.set( 0, 0, - 0.2 );
- controls.update();
- window.addEventListener( 'resize', onWindowResize );
- }
- function onWindowResize() {
- camera.aspect = window.innerWidth / window.innerHeight;
- camera.updateProjectionMatrix();
- renderer.setSize( window.innerWidth, window.innerHeight );
- }
- //
- function render() {
- postProcessing.render();
- }
- </script>
- </body>
- </html>
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