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176 lines
4.7 KiB
HTML
176 lines
4.7 KiB
HTML
<!DOCTYPE html>
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<html lang="en">
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<head>
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<title>three.js webgpu - materials arrays and geometry groups</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 Materials Arrays and Geometry Groups<br />
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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.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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<script type="module">
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import * as THREE from 'three';
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import { OrbitControls } from 'three/addons/controls/OrbitControls.js';
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import { GUI } from 'three/addons/libs/lil-gui.module.min.js';
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let renderer, scene, camera, controls;
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let planeMesh, boxMesh, boxMeshWireframe, planeMeshWireframe;
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let materials;
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const api = {
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webgpu: true
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};
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init( ! api.webgpu );
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function init( forceWebGL = false ) {
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if ( renderer ) {
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renderer.dispose();
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controls.dispose();
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document.body.removeChild( renderer.domElement );
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}
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// renderer
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renderer = new THREE.WebGPURenderer( {
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forceWebGL,
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antialias: true,
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} );
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renderer.setSize( window.innerWidth, window.innerHeight );
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renderer.setPixelRatio( window.devicePixelRatio );
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renderer.setAnimationLoop( animate );
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document.body.appendChild( renderer.domElement );
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// scene
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scene = new THREE.Scene();
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scene.background = new THREE.Color( 0x000000 );
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// camera
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camera = new THREE.PerspectiveCamera( 40, window.innerWidth / window.innerHeight, 1, 100 );
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camera.position.set( 0, 0, 10 );
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// controls
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controls = new OrbitControls( camera, renderer.domElement );
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// materials
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materials = [
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new THREE.MeshBasicMaterial( { color: 0xff1493, side: THREE.DoubleSide } ),
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new THREE.MeshBasicMaterial( { color: 0x0000ff, side: THREE.DoubleSide } ),
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new THREE.MeshBasicMaterial( { color: 0x00ff00, side: THREE.DoubleSide } ),
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];
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// plane geometry
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const planeGeometry = new THREE.PlaneGeometry( 1, 1, 4, 4 );
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planeGeometry.clearGroups();
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const numFacesPerRow = 4; // Number of faces in a row (since each face is made of 2 triangles)
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planeGeometry.addGroup( 0, 6 * numFacesPerRow, 0 );
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planeGeometry.addGroup( 6 * numFacesPerRow, 6 * numFacesPerRow, 1 );
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planeGeometry.addGroup( 12 * numFacesPerRow, 6 * numFacesPerRow, 2 );
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// box geometry
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const boxGeometry = new THREE.BoxGeometry( .75, .75, .75 );
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boxGeometry.clearGroups();
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boxGeometry.addGroup( 0, 6, 0 ); // front face
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boxGeometry.addGroup( 6, 6, 0 ); // back face
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boxGeometry.addGroup( 12, 6, 2 ); // top face
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boxGeometry.addGroup( 18, 6, 2 ); // bottom face
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boxGeometry.addGroup( 24, 6, 1 ); // left face
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boxGeometry.addGroup( 30, 6, 1 ); // right face
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scene.background = forceWebGL ? new THREE.Color( 0x000000 ) : new THREE.Color( 0x222222 );
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// meshes
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planeMesh = new THREE.Mesh( planeGeometry, materials );
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const materialsWireframe = [];
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for ( let index = 0; index < materials.length; index ++ ) {
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const material = new THREE.MeshBasicMaterial( { color: materials[ index ].color, side: THREE.DoubleSide, wireframe: true } );
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materialsWireframe.push( material );
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}
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planeMeshWireframe = new THREE.Mesh( planeGeometry, materialsWireframe );
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boxMeshWireframe = new THREE.Mesh( boxGeometry, materialsWireframe );
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boxMesh = new THREE.Mesh( boxGeometry, materials );
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planeMesh.position.set( - 1.5, - 1, 0 );
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boxMesh.position.set( 1.5, - 0.75, 0 );
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boxMesh.rotation.set( - Math.PI / 8, Math.PI / 4, Math.PI / 4 );
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planeMeshWireframe.position.set( - 1.5, 1, 0 );
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boxMeshWireframe.position.set( 1.5, 1.25, 0 );
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boxMeshWireframe.rotation.set( - Math.PI / 8, Math.PI / 4, Math.PI / 4 );
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scene.add( planeMesh, planeMeshWireframe );
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scene.add( boxMesh, boxMeshWireframe );
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}
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function animate() {
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boxMesh.rotation.y += 0.005;
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boxMesh.rotation.x += 0.005;
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boxMeshWireframe.rotation.y += 0.005;
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boxMeshWireframe.rotation.x += 0.005;
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renderer.render( scene, camera );
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}
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// gui
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const gui = new GUI();
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gui.add( api, 'webgpu' ).onChange( () => {
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init( ! api.webgpu );
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} );
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// listeners
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window.addEventListener( 'resize', onWindowResize );
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function onWindowResize() {
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const width = window.innerWidth;
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const height = window.innerHeight;
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camera.aspect = width / height;
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camera.updateProjectionMatrix();
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renderer.setSize( width, height );
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}
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</script>
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</body>
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</html>
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