javascript
/
three.js
zrkadlo https://github.com/tazdij/three.js.git


			
				
					
						
						
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							<html lang="en">
	<head>
		<title>WebGPU Sandbox</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 - sandbox<br/>(Chrome Canary with flag: --enable-unsafe-webgpu)
		</div>

		<script type="module">

			import * as THREE from '../build/three.module.js';

			import { DDSLoader } from './jsm/loaders/DDSLoader.js';

			import WebGPURenderer from './jsm/renderers/webgpu/WebGPURenderer.js';
			import WebGPU from './jsm/renderers/webgpu/WebGPU.js';

			let camera, scene, renderer;

			let box;

			init().then( animate ).catch( error );

			async function init() {

				if ( WebGPU.isAvailable() === false ) {

					document.body.appendChild( WebGPU.getErrorMessage() );

					throw 'No WebGPU support';

				}

				camera = new THREE.PerspectiveCamera( 70, window.innerWidth / window.innerHeight, 0.1, 10 );
				camera.position.z = 4;

				scene = new THREE.Scene();
				scene.background = new THREE.Color( 0x222222 );

				// textured mesh

				const textureLoader = new THREE.TextureLoader();
				const texture = textureLoader.load( './textures/uv_grid_opengl.jpg' );

				const geometryBox = new THREE.BoxGeometry();
				const materialBox = new THREE.MeshBasicMaterial( { map: texture } );

				box = new THREE.Mesh( geometryBox, materialBox );
				box.position.set( 0, 1, 0 );
				scene.add( box );

				// data texture

				const geometryPlane = new THREE.PlaneGeometry();
				const materialPlane = new THREE.MeshBasicMaterial( { map: createDataTexture(), transparent: true, opacity: 0.5 } );

				const plane = new THREE.Mesh( geometryPlane, materialPlane );
				plane.position.set( 0, - 1, 0 );
				scene.add( plane );

				// compressed texture

				const ddsLoader = new DDSLoader();
				const dxt5Texture = ddsLoader.load( './textures/compressed/explosion_dxt5_mip.dds' );

				const materialCompressed = new THREE.MeshBasicMaterial( { map: dxt5Texture, transparent: true } );

				const boxCompressed = new THREE.Mesh( geometryBox, materialCompressed );
				boxCompressed.position.set( - 2, 1, 0 );
				scene.add( boxCompressed );

				// points

				const points = [];

				for ( let i = 0; i < 1000; i ++ ) {

					const point = new THREE.Vector3().random().subScalar( 0.5 );
					points.push( point );

				}

				const geometryPoints = new THREE.BufferGeometry().setFromPoints( points );
				const materialPoints = new THREE.PointsMaterial();

				const pointCloud = new THREE.Points( geometryPoints, materialPoints );
				pointCloud.position.set( 2, - 1, 0 );
				scene.add( pointCloud );

				// lines

				const geometryLine = new THREE.BufferGeometry().setFromPoints( [
					new THREE.Vector3( - 0.5, - 0.5, 0 ),
					new THREE.Vector3( 0.5, - 0.5, 0 ),
					new THREE.Vector3( 0.5, 0.5, 0 ),
					new THREE.Vector3( - 0.5, 0.5, 0 )
				] );
				const materialLine = new THREE.LineBasicMaterial();
				const line = new THREE.Line( geometryLine, materialLine );
				line.position.set( 2, 1, 0 );
				scene.add( line );

				//

				renderer = new WebGPURenderer( { extensions: [ 'texture-compression-bc' ] } );
				renderer.setPixelRatio( window.devicePixelRatio );
				renderer.setSize( window.innerWidth, window.innerHeight );
				document.body.appendChild( renderer.domElement );

				window.addEventListener( 'resize', onWindowResize, false );

				return renderer.init();

			}

			function onWindowResize() {

				camera.aspect = window.innerWidth / window.innerHeight;
				camera.updateProjectionMatrix();

				renderer.setSize( window.innerWidth, window.innerHeight );

			}

			function animate() {

				requestAnimationFrame( animate );

				box.rotation.x += 0.01;
				box.rotation.y += 0.02;

				renderer.render( scene, camera );

			}

			function createDataTexture() {

				const color = new THREE.Color( 0xff0000 );

				const width = 512;
				const height = 512;

				const size = width * height;
				const data = new Uint8Array( 4 * size );

				const r = Math.floor( color.r * 255 );
				const g = Math.floor( color.g * 255 );
				const b = Math.floor( color.b * 255 );

				for ( let i = 0; i < size; i ++ ) {

					const stride = i * 4;

					data[ stride ] = r;
					data[ stride + 1 ] = g;
					data[ stride + 2 ] = b;
					data[ stride + 3 ] = 255;

				}

				return new THREE.DataTexture( data, width, height, THREE.RGBAFormat );

			}

			function error( error ) {

				console.error( error );

			}

		</script>
	</body>
</html>