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176 lines
4.3 KiB
HTML
176 lines
4.3 KiB
HTML
<html lang="en">
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<head>
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<title>three.js webgpu - multisampled renderbuffers</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 - multisampled renderbuffers
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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 { texture } from 'three/tsl';
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import { GUI } from 'three/addons/libs/lil-gui.module.min.js';
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let camera, scene, renderer;
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const mouse = new THREE.Vector2();
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let quadMesh, renderTarget;
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let box, box2;
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const dpr = 1;
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const params = {
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animated: true,
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samples: 4
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};
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const mat4 = new THREE.Matrix4();
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const count = 50;
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const fullRadius = 20; // Radius of the sphere
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const halfRadius = 10; // Radius of the sphere
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const positions = new Array( count ).fill().map( ( _, i ) => {
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const radius = ( i % 2 === 0 ) ? fullRadius : halfRadius;
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const phi = Math.acos( 2 * Math.random() - 1 ) - Math.PI / 2; // phi: latitude, range -π/2 to π/2
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const theta = 2 * Math.PI * Math.random(); // theta: longitude, range 0 to 2π
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return new THREE.Vector3(
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radius * Math.cos( phi ) * Math.cos( theta ), // x
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radius * Math.sin( phi ), // y
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radius * Math.cos( phi ) * Math.sin( theta ) // z
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);
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} );
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initGUI();
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init();
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function initGUI() {
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const gui = new GUI();
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gui.add( params, 'samples', 0, 4 ).step( 1 );
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gui.add( params, 'animated' );
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}
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function init() {
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camera = new THREE.PerspectiveCamera( 70, window.innerWidth / window.innerHeight, 0.1, 50 );
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camera.position.z = 3;
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scene = new THREE.Scene();
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scene.background = new THREE.Color( 0x111111 );
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// textured mesh
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const geometryBox = new THREE.BoxGeometry( 7, 7, 7, 12, 12, 12 );
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const materialBox = new THREE.MeshBasicNodeMaterial();
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const materialBoxInner = new THREE.MeshBasicNodeMaterial( { color: 0xff0000 } );
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materialBox.wireframe = true;
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//
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box = new THREE.InstancedMesh( geometryBox, materialBox, count );
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box2 = new THREE.InstancedMesh( geometryBox, materialBoxInner, count );
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for ( let i = 0; i < count; i ++ ) {
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box.setMatrixAt( i, mat4.identity().setPosition( positions[ i ] ) );
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box2.setMatrixAt( i, mat4.multiplyScalar( 0.996 ).setPosition( positions[ i ] ) );
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}
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scene.add( box, box2 );
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//
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renderer = new THREE.WebGPURenderer( { antialias: true } );
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renderer.setPixelRatio( dpr );
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renderer.setSize( window.innerWidth, window.innerHeight );
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renderer.setAnimationLoop( animate );
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document.body.appendChild( renderer.domElement );
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renderTarget = new THREE.RenderTarget( window.innerWidth * dpr, window.innerHeight * dpr, {
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samples: params.samples,
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depthBuffer: true,
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} );
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window.addEventListener( 'mousemove', onWindowMouseMove );
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window.addEventListener( 'resize', onWindowResize );
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// FX
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// modulate the final color based on the mouse position
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const materialFX = new THREE.MeshBasicNodeMaterial();
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materialFX.colorNode = texture( renderTarget.texture ).rgb;
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quadMesh = new THREE.QuadMesh( materialFX );
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}
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function onWindowMouseMove( e ) {
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mouse.x = e.offsetX / window.innerWidth;
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mouse.y = e.offsetY / window.innerHeight;
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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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renderTarget.setSize( window.innerWidth * dpr, window.innerHeight * dpr );
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}
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function animate() {
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if ( params.animated ) {
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box.rotation.x += 0.001;
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box.rotation.y += 0.002;
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box2.rotation.x += 0.001;
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box2.rotation.y += 0.002;
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}
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renderTarget.samples = params.samples;
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renderer.setRenderTarget( renderTarget );
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renderer.render( scene, camera );
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renderer.setRenderTarget( null );
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quadMesh.render( renderer );
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}
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</script>
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</body>
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</html>
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