javascript
/
three.js
mirror of https://github.com/tazdij/three.js.git


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

		<script type="module">

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

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

			import TextureNode from './jsm/renderers/nodes/inputs/TextureNode.js';
			import OperatorNode from './jsm/renderers/nodes/math/OperatorNode.js';
			import Vector2Node from './jsm/renderers/nodes/inputs/Vector2Node.js';

			let camera, scene, renderer;
			const mouse = new THREE.Vector2();

			let cameraFX, sceneFX, textureRenderer;

			let box;

			const dpr = window.devicePixelRatio;

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

				const geometryBox = new THREE.BoxBufferGeometry();
				const materialBox = new THREE.MeshBasicMaterial();
				materialBox.colorNode = new TextureNode( texture );

				//

				box = new THREE.Mesh( geometryBox, materialBox );
				scene.add( box );

				//

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

				textureRenderer = new WebGPUTextureRenderer( renderer );
				textureRenderer.setSize( window.innerWidth * dpr, window.innerHeight * dpr );

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

				// FX

				cameraFX = new THREE.OrthographicCamera( - 1, 1, 1, - 1, 0, 1 );
				sceneFX = new THREE.Scene();

				const geometryFX = new THREE.PlaneGeometry( 2, 2 );

				// modulate the final color based on the mouse position

				const screenFXNode = new OperatorNode( '+', new Vector2Node( mouse ), new Vector2Node( new THREE.Vector2( 0.5, 0.5 ) ).setConst( true ) );

				const materialFX = new THREE.MeshBasicMaterial();
				materialFX.colorNode = new OperatorNode( '*', new TextureNode( textureRenderer.getTexture() ), screenFXNode );

				const quad = new THREE.Mesh( geometryFX, materialFX );
				sceneFX.add( quad );

				//

				return renderer.init();

			}

			function onWindowMouseMove( e ) {

				mouse.x = e.offsetX / screen.width;
				mouse.y = e.offsetY / screen.height;

			}

			function onWindowResize() {

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

				renderer.setSize( window.innerWidth, window.innerHeight );
				textureRenderer.setSize( window.innerWidth * dpr, window.innerHeight * dpr );

			}

			function animate() {

				requestAnimationFrame( animate );

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

				textureRenderer.render( scene, camera );
				renderer.render( sceneFX, cameraFX );

			}

			function error( error ) {

				console.error( error );

			}

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