206 lines
4.3 KiB
HTML
206 lines
4.3 KiB
HTML
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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 - Instance Uniform</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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</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 - Instance Uniform<br/>(Chrome Canary with flag: --enable-unsafe-webgpu)
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</div>
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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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}
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}
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</script>
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<script type="module">
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import * as THREE from 'three';
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import WebGPURenderer from './jsm/renderers/webgpu/WebGPURenderer.js';
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import WebGPU from './jsm/renderers/webgpu/WebGPU.js';
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import { TeapotGeometry } from './jsm/geometries/TeapotGeometry.js';
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import Node from './jsm/renderers/nodes/core/Node.js';
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import AttributeNode from './jsm/renderers/nodes/core/AttributeNode.js';
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import { NodeUpdateType } from './jsm/renderers/nodes/core/constants.js';
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import ColorNode from './jsm/renderers/nodes/inputs/ColorNode.js';
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import Stats from './jsm/libs/stats.module.js';
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class InstanceUniformNode extends Node {
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constructor() {
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super( 'vec3' );
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this.updateType = NodeUpdateType.Object;
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this.inputNode = new ColorNode();
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}
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update( frame ) {
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const mesh = frame.object;
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this.inputNode.value.copy( mesh.color );
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}
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generate( builder, output ) {
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return this.inputNode.build( builder, output );
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}
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}
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let stats;
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let camera, scene, renderer;
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const objects = [];
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init().then( animate ).catch( error );
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async function init() {
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if ( WebGPU.isAvailable() === false ) {
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document.body.appendChild( WebGPU.getErrorMessage() );
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throw 'No WebGPU support';
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}
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const container = document.createElement( 'div' );
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document.body.appendChild( container );
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camera = new THREE.PerspectiveCamera( 45, window.innerWidth / window.innerHeight, 1, 2000 );
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camera.position.set( 0, 200, 800 );
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scene = new THREE.Scene();
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// Grid
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const helper = new THREE.GridHelper( 1000, 40, 0x303030, 0x303030 );
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helper.material.colorNode = new AttributeNode( 'color', 'vec3' );
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helper.position.y = - 75;
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scene.add( helper );
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// Materials
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const instanceUniform = new InstanceUniformNode();
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const material = new THREE.MeshBasicMaterial();
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material.colorNode = instanceUniform;
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// Geometry
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const geometry = new TeapotGeometry( 50, 18 );
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for ( let i = 0, l = 12; i < l; i ++ ) {
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addMesh( geometry, material );
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}
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//
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renderer = new WebGPURenderer();
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renderer.setPixelRatio( window.devicePixelRatio );
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renderer.setSize( window.innerWidth, window.innerHeight );
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container.appendChild( renderer.domElement );
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//
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stats = new Stats();
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container.appendChild( stats.dom );
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//
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window.addEventListener( 'resize', onWindowResize );
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return renderer.init();
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}
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function addMesh( geometry, material ) {
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const mesh = new THREE.Mesh( geometry, material );
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mesh.color = new THREE.Color( Math.random() * 0xffffff );
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mesh.position.x = ( objects.length % 4 ) * 200 - 400;
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mesh.position.z = Math.floor( objects.length / 4 ) * 200 - 200;
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mesh.rotation.x = Math.random() * 200 - 100;
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mesh.rotation.y = Math.random() * 200 - 100;
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mesh.rotation.z = Math.random() * 200 - 100;
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objects.push( mesh );
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scene.add( mesh );
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}
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function onWindowResize() {
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camera.aspect = window.innerWidth / window.innerHeight;
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camera.updateProjectionMatrix();
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renderer.setSize( window.innerWidth, window.innerHeight );
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}
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//
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function animate() {
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requestAnimationFrame( animate );
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render();
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stats.update();
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}
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function render() {
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const timer = 0.0001 * Date.now();
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camera.position.x = Math.cos( timer ) * 1000;
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camera.position.z = Math.sin( timer ) * 1000;
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camera.lookAt( scene.position );
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for ( let i = 0, l = objects.length; i < l; i ++ ) {
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const object = objects[ i ];
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object.rotation.x += 0.01;
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object.rotation.y += 0.005;
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}
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renderer.render( scene, camera );
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}
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function error( error ) {
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console.error( error );
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}
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</script>
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</body>
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</html>
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