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


			
				
					
						
						
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							<!DOCTYPE html>
<html lang="en">
	<head>
		<title>three.js WebGPU - lights - ies spotlight</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 - ies spotlight<br />
		</div>

		<script type="importmap">
			{
				"imports": {
					"three": "../build/three.module.js",
					"three/addons/": "./jsm/",
					"three/nodes": "./jsm/nodes/Nodes.js"
				}
			}
		</script>

		<script type="module">

			import * as THREE from 'three';

			import WebGPU from 'three/addons/capabilities/WebGPU.js';
			import WebGL from 'three/addons/capabilities/WebGL.js';

			import WebGPURenderer from 'three/addons/renderers/webgpu/WebGPURenderer.js';

			import IESSpotLight from 'three/addons/lights/IESSpotLight.js';

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

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

			let renderer, scene, camera;
			let lights;

			async function init() {

				if ( WebGPU.isAvailable() === false && WebGL.isWebGL2Available() === false ) {

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

					throw new Error( 'No WebGPU or WebGL2 support' );

				}

				//

				scene = new THREE.Scene();

				//

				const iesLoader = new IESLoader().setPath( './ies/' );
				//iesLoader.type = THREE.UnsignedByteType; // LDR

				const [ iesTexture1, iesTexture2, iesTexture3, iesTexture4 ] = await Promise.all( [
					iesLoader.loadAsync( '007cfb11e343e2f42e3b476be4ab684e.ies' ),
					iesLoader.loadAsync( '06b4cfdc8805709e767b5e2e904be8ad.ies' ),
					iesLoader.loadAsync( '02a7562c650498ebb301153dbbf59207.ies' ),
					iesLoader.loadAsync( '1a936937a49c63374e6d4fbed9252b29.ies' )
				] );

				//

				const spotLight = new IESSpotLight( 0xff0000, 500 );
				spotLight.position.set( 6.5, 1.5, 6.5 );
				spotLight.angle = Math.PI / 8;
				spotLight.penumbra = 0.7;
				spotLight.distance = 20;
				spotLight.iesMap = iesTexture1;
				scene.add( spotLight );

				//

				const spotLight2 = new IESSpotLight( 0x00ff00, 500 );
				spotLight2.position.set( 6.5, 1.5, - 6.5 );
				spotLight2.angle = Math.PI / 8;
				spotLight2.penumbra = 0.7;
				spotLight2.distance = 20;
				spotLight2.iesMap = iesTexture2;
				scene.add( spotLight2 );

				//

				const spotLight3 = new IESSpotLight( 0x0000ff, 500 );
				spotLight3.position.set( - 6.5, 1.5, - 6.5 );
				spotLight3.angle = Math.PI / 8;
				spotLight3.penumbra = 0.7;
				spotLight3.distance = 20;
				spotLight3.iesMap = iesTexture3;
				scene.add( spotLight3 );

				//

				const spotLight4 = new IESSpotLight( 0xffffff, 500 );
				spotLight4.position.set( - 6.5, 1.5, 6.5 );
				spotLight4.angle = Math.PI / 8;
				spotLight4.penumbra = 0.7;
				spotLight4.distance = 20;
				spotLight4.iesMap = iesTexture4;
				scene.add( spotLight4 );

				//

				lights = [ spotLight, spotLight2, spotLight3, spotLight4 ];

				//

				const material = new THREE.MeshPhongMaterial( { color: 0x808080/*, dithering: true*/ } );

				const geometry = new THREE.PlaneGeometry( 200, 200 );

				const mesh = new THREE.Mesh( geometry, material );
				mesh.rotation.x = - Math.PI * 0.5;
				scene.add( mesh );

				//

				renderer = new WebGPURenderer( { antialias: true } );
				renderer.setPixelRatio( window.devicePixelRatio );
				renderer.setSize( window.innerWidth, window.innerHeight );
				renderer.setAnimationLoop( render );
				document.body.appendChild( renderer.domElement );

				camera = new THREE.PerspectiveCamera( 35, window.innerWidth / window.innerHeight, .1, 100 );
				camera.position.set( 16, 4, 1 );

				const controls = new OrbitControls( camera, renderer.domElement );
				controls.minDistance = 2;
				controls.maxDistance = 50;
				controls.enablePan = false;

				//

				window.addEventListener( 'resize', onWindowResize );

			}

			function onWindowResize() {

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

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

			}

			function render( time ) {

				time = ( time / 1000 ) * 2.0;

				for ( let i = 0; i < lights.length; i ++ ) {

					lights[ i ].position.y = Math.sin( time + i ) + 0.97;

				}

				renderer.render( scene, camera );

			}

			init();

		</script>

	</body>

</html>