samien
/
three.js
espejo de https://github.com/mrdoob/three.js.git


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

		<script type="module">

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

			import { GUI } from './jsm/libs/dat.gui.module.js';

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

			import { OrbitControls } from './jsm/controls/OrbitControls.js';
			import { TeapotGeometry } from './jsm/geometries/TeapotGeometry.js';

			import PositionNode from './jsm/renderers/nodes/accessors/PositionNode.js';
			import NormalNode from './jsm/renderers/nodes/accessors/NormalNode.js';
			import TextureNode from './jsm/renderers/nodes/inputs/TextureNode.js';

			let gui;

			let controls, camera, scene, renderer;

			let teapot, material, texture;

			let rotateTeapot = false;

			const param = { example: new URL( window.location.href ).searchParams.get( 'e' ) || 'texture' };

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

			function addGui( name, value, callback, isColor, min, max ) {

				let node;

				param[ name ] = value;

				if ( isColor ) {

					node = gui.addColor( param, name ).onChange( function () {

						callback( param[ name ] );

					} );

				} else if ( typeof value === 'object' ) {

					param[ name ] = value[ Object.keys( value )[ 0 ] ];

					node = gui.add( param, name, value ).onChange( function () {

						callback( param[ name ] );

					} );

				} else {

					node = gui.add( param, name, min, max ).onChange( function () {

						callback( param[ name ] );

					} );

				}

				return node;

			}

			function clearGui() {

				if ( gui ) gui.destroy();

				gui = new GUI();

				gui.add( param, 'example', {
					'texture': 'texture',
					'position': 'position',
					'normal': 'normal',
					'empty': 'empty'
				} ).onFinishChange( function () {

					updateMaterial();

				} );

				gui.open();

			}

			function updateMaterial() {

				clearGui();

				rotateTeapot = false;

				const name = param.example;

				switch ( name ) {

					case 'texture':

						material.colorNode = new TextureNode( texture );

						break;

					case 'position':

						const positionNode = new PositionNode( PositionNode.VIEW );

						material.colorNode = positionNode;

						addGui( 'scope', {
							local: PositionNode.LOCAL
						}, function ( val ) {

							positionNode.scope = val;

							material.dispose();

						} );

						break;

					case 'normal':

						const normalNode = new NormalNode( NormalNode.LOCAL );

						material.colorNode = normalNode;

						addGui( 'scope', {							
							local: NormalNode.LOCAL,
							world: NormalNode.WORLD,
							view: NormalNode.VIEW
						}, function ( val ) {

							normalNode.scope = val;

							material.dispose();

						} );

						addGui( 'rotate', false, function ( val ) {

							rotateTeapot = val;

						} );

						break;

					case 'empty':

						material.colorNode = undefined;

						break;
						
				}

				material.dispose();

			}

			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.y = 3;
				camera.position.z = 6;

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

				// textures

				const textureLoader = new THREE.TextureLoader();

				texture = textureLoader.load( './textures/uv_grid_opengl.jpg' );
				texture.wrapS = THREE.RepeatWrapping;
				texture.wrapT = THREE.RepeatWrapping;
				texture.name = 'uv_grid';

				// teapot mesh

				const geometryTeapot = new TeapotGeometry( 1, 18 );

				material = new THREE.MeshBasicMaterial();

				teapot = new THREE.Mesh( geometryTeapot, material );
				scene.add( teapot );

				//

				renderer = new WebGPURenderer();
				renderer.setPixelRatio( window.devicePixelRatio );
				renderer.setSize( window.innerWidth, window.innerHeight );
				document.body.appendChild( renderer.domElement );

				//

				controls = new OrbitControls( camera, renderer.domElement );
				controls.minDistance = 3;
				controls.maxDistance = 8;

				//

				updateMaterial();

				//

				window.addEventListener( 'resize', onWindowResize );

				return renderer.init();

			}

			function onWindowResize() {

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

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

			}

			function animate() {

				requestAnimationFrame( animate );

				if ( rotateTeapot ) {

					teapot.rotation.x += 0.01;

				} else {

					teapot.rotation.x = 0;

				}
				//teapot.rotation.y += 0.02;

				renderer.render( scene, camera );

			}

			function error( error ) {

				console.error( error );

			}

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