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">
		<link type="text/css" rel="stylesheet" href="main.css">
	</head>

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

		<script src="js/WebGL.js"></script>

		<script type="module">
			import {
				Color,
				PerspectiveCamera,
				Fog,
				Mesh,
				MeshNormalMaterial,
				PointLight,
				Scene,
				SphereBufferGeometry,
				WebGLRenderer
			} from "../build/three.module.js";

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

			if ( WEBGL.isWebGL2Available() === false ) {

				document.body.appendChild( WEBGL.getWebGL2ErrorMessage() );

			}

			//

			var camera, scene, renderer;
			var controls;

			init();
			render();

			function init() {

				camera = new PerspectiveCamera( 60, window.innerWidth / window.innerHeight, 0.1, 100 );
				camera.position.z = 3;

				scene = new Scene();
				scene.background = new Color( 0, 0, 0.5 );
				scene.fog = new Fog( 0x000000, 0.1, 3 );

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

				var geometry = new SphereBufferGeometry( 0.05, 32, 16 );
				var material = new MeshNormalMaterial();

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

					var mesh = new Mesh( geometry, material );

					mesh.position.x = Math.random() * 10 - 5;
					mesh.position.y = Math.random() * 10 - 5;
					mesh.position.z = Math.random() * 10 - 5;

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

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

					scene.add( mesh );

				}

				var canvas = document.createElement( 'canvas' );
				var context = canvas.getContext( 'webgl2' );

				renderer = new WebGLRenderer( { canvas: canvas, context: context } );
				renderer.setPixelRatio( window.devicePixelRatio );
				renderer.setSize( window.innerWidth, window.innerHeight );
				document.body.appendChild( renderer.domElement );

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

				//

				controls = new OrbitControls( camera, renderer.domElement );
				controls.addEventListener( 'change', render );

			}

			function onWindowResize() {

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

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

			}

			//

			function render() {

				renderer.render( scene, camera );

			}

		</script>

	</body>
</html>