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- <html lang="en">
- <head>
- <title>three.js webgpu - sprites</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 - sprites
- </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 { texture, uv, userData, rangeFog, color } from 'three/tsl';
- let camera, scene, renderer;
- let map;
- let group;
- let imageWidth = 1, imageHeight = 1;
- init();
- function init() {
- const width = window.innerWidth;
- const height = window.innerHeight;
- camera = new THREE.PerspectiveCamera( 60, width / height, 1, 2100 );
- camera.position.z = 1500;
- scene = new THREE.Scene();
- scene.fogNode = rangeFog( color( 0x0000ff ), 1500, 2100 );
- // create sprites
- const amount = 200;
- const radius = 500;
- const textureLoader = new THREE.TextureLoader();
- map = textureLoader.load( 'textures/sprite1.png', ( map ) => {
- imageWidth = map.image.width;
- imageHeight = map.image.height;
- } );
- group = new THREE.Group();
- const textureNode = texture( map );
- const material = new THREE.SpriteNodeMaterial();
- material.colorNode = textureNode.mul( uv() ).mul( 2 ).saturate();
- material.opacityNode = textureNode.a;
- material.rotationNode = userData( 'rotation', 'float' ); // get value of: sprite.userData.rotation
- material.transparent = true;
- for ( let a = 0; a < amount; a ++ ) {
- const x = Math.random() - 0.5;
- const y = Math.random() - 0.5;
- const z = Math.random() - 0.5;
- const sprite = new THREE.Sprite( material );
- sprite.position.set( x, y, z );
- sprite.position.normalize();
- sprite.position.multiplyScalar( radius );
- // individual rotation per sprite
- sprite.userData.rotation = 0;
- group.add( sprite );
- }
- scene.add( group );
- //
- renderer = new THREE.WebGPURenderer( { antialias: true } );
- renderer.setPixelRatio( window.devicePixelRatio );
- renderer.setSize( window.innerWidth, window.innerHeight );
- renderer.setAnimationLoop( render );
- document.body.appendChild( renderer.domElement );
- window.addEventListener( 'resize', onWindowResize );
- }
- function onWindowResize() {
- const width = window.innerWidth;
- const height = window.innerHeight;
- camera.aspect = width / height;
- camera.updateProjectionMatrix();
- renderer.setSize( window.innerWidth, window.innerHeight );
- }
- function render() {
- const time = Date.now() / 1000;
- for ( let i = 0, l = group.children.length; i < l; i ++ ) {
- const sprite = group.children[ i ];
- const scale = Math.sin( time + sprite.position.x * 0.01 ) * 0.3 + 1.0;
- sprite.userData.rotation += 0.1 * ( i / l );
- sprite.scale.set( scale * imageWidth, scale * imageHeight, 1.0 );
- }
- group.rotation.x = time * 0.5;
- group.rotation.y = time * 0.75;
- group.rotation.z = time * 1.0;
- renderer.render( scene, camera );
- }
- </script>
- </body>
- </html>
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