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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/webgpu": "../build/three.webgpu.js",
"three/tsl": "../build/three.tsl.js",
"three/addons/": "./jsm/"
}
}
</script>
<script type="module">
import * as THREE from 'three';
import { output, normalView, 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( normalView ),
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>