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


			
				
					
						
						
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							<!DOCTYPE html>
<html lang="en">
	<head>
		<title>three.js - webgl2 sandbox</title>
		<meta charset="utf-8">
		<meta name="viewport" content="width=device-width, user-scalable=no, minimum-scale=1.0, maximum-scale=1.0">
		<style>
			body {
				background:#000;
				padding:0;
				margin:0;
				font-weight: bold;
				overflow:hidden;
			}

			#info {
				position: absolute;
				top: 0px; width: 100%;
				color: #ffffff;
				padding: 5px;
				font-family:Monospace;
				font-size:13px;
				text-align:center;
				z-index:1000;
			}

			a {
				color: #ffffff;
			}

		</style>
	</head>

	<body>
		<div id="info"><a href="http://threejs.org" target="_blank" rel="noopener">three.js</a> - webgl2 sandbox.</div>

		<script type="module">

			import { PerspectiveCamera } from '../src/cameras/PerspectiveCamera.js';
			import { SphereBufferGeometry } from '../src/geometries/SphereGeometry.js';
			import { MeshNormalMaterial } from '../src/materials/MeshNormalMaterial.js';
			import { PointLight } from '../src/lights/PointLight.js';
			import { Color } from '../src/math/Color.js';
			import { Mesh } from '../src/objects/Mesh.js';
			import { Fog } from '../src/scenes/Fog.js';
			import { Scene } from '../src/scenes/Scene.js';
			import { WebGL2Renderer } from '../src/renderers/WebGL2Renderer.js';

			//

			var camera, scene, renderer;

			var mouseX = 0, mouseY = 0;

			var windowHalfX = window.innerWidth / 2;
			var windowHalfY = window.innerHeight / 2;

			init();
			animate();

			function init() {

				camera = new PerspectiveCamera( 60, window.innerWidth / window.innerHeight, 1, 20000 );
				camera.position.z = 3200;

				scene = new Scene();
				scene.background = new Color( 0, 0, 0.5 );
				scene.fog = new Fog( 0x000000, 1, 20000 );

				var light = new PointLight( 0xffffff );
				scene.add( light );

				var geometry = new SphereBufferGeometry( 50, 32, 16 );
				var material = new MeshNormalMaterial();

				for ( var i = 0; i < 5000; i ++ ) {

					var mesh = new Mesh( geometry, material );

					mesh.position.x = Math.random() * 10000 - 5000;
					mesh.position.y = Math.random() * 10000 - 5000;
					mesh.position.z = Math.random() * 10000 - 5000;

					mesh.rotation.y = Math.random() * 2 * Math.PI;

					mesh.scale.setScalar( Math.random() * 4 + 1 );

					scene.add( mesh );

				}

				renderer = new WebGL2Renderer();
				renderer.setPixelRatio( window.devicePixelRatio );
				renderer.setSize( window.innerWidth, window.innerHeight );
				document.body.appendChild( renderer.domElement );

				document.addEventListener( 'mousemove', onDocumentMouseMove, false );

				//

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

			}

			function onWindowResize() {

				windowHalfX = window.innerWidth / 2;
				windowHalfY = window.innerHeight / 2;

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

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

			}

			function onDocumentMouseMove(event) {

				mouseX = ( event.clientX - windowHalfX ) * 10;
				mouseY = ( event.clientY - windowHalfY ) * 10;

			}

			//

			function animate() {

				requestAnimationFrame( animate );

				render();

			}

			function render() {

				camera.position.x += ( mouseX - camera.position.x ) * .05;
				camera.position.y += ( - mouseY - camera.position.y ) * .05;

				camera.lookAt( scene.position );

				renderer.render( scene, camera );

			}

		</script>

	</body>
</html>