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 webgl - helpers</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> - helpers
		</div>

		<script type="module">
			import {
				BoxHelper,
				EdgesGeometry,
				GridHelper,
				Group,
				LineSegments,
				PerspectiveCamera,
				PointLight,
				PointLightHelper,
				PolarGridHelper,
				Scene,
				VertexNormalsHelper,
				WebGLRenderer,
				WireframeGeometry
			} from "../build/three.module.js";

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

			var scene, renderer;
			var camera, light;
			var fnh, vnh;

			init();
			animate();

			function init() {

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

				//

				camera = new PerspectiveCamera( 70, window.innerWidth / window.innerHeight, 1, 1000 );
				camera.position.z = 400;

				scene = new Scene();

				light = new PointLight();
				light.position.set( 200, 100, 150 );
				scene.add( light );

				scene.add( new PointLightHelper( light, 15 ) );

				var gridHelper = new GridHelper( 400, 40, 0x0000ff, 0x808080 );
				gridHelper.position.y = - 150;
				gridHelper.position.x = - 150;
				scene.add( gridHelper );

				var polarGridHelper = new PolarGridHelper( 200, 16, 8, 64, 0x0000ff, 0x808080 );
				polarGridHelper.position.y = - 150;
				polarGridHelper.position.x = 200;
				scene.add( polarGridHelper );

				var loader = new GLTFLoader();
				loader.load( 'models/gltf/LeePerrySmith/LeePerrySmith.glb', function ( gltf ) {

					var mesh = gltf.scene.children[ 0 ];

					var group = new Group();
					group.scale.multiplyScalar( 50 );
					scene.add( group );

					// To make sure that the matrixWorld is up to date for the boxhelpers
					group.updateMatrixWorld( true );

					group.add( mesh );

					vnh = new VertexNormalsHelper( mesh, 5 );
					scene.add( vnh );

					scene.add( new BoxHelper( mesh ) );

					var wireframe = new WireframeGeometry( mesh.geometry );
					var line = new LineSegments( wireframe );
					line.material.depthTest = false;
					line.material.opacity = 0.25;
					line.material.transparent = true;
					line.position.x = 4;
					group.add( line );
					scene.add( new BoxHelper( line ) );

					var edges = new EdgesGeometry( mesh.geometry );
					var line = new LineSegments( edges );
					line.material.depthTest = false;
					line.material.opacity = 0.25;
					line.material.transparent = true;
					line.position.x = - 4;
					group.add( line );
					scene.add( new BoxHelper( line ) );

					scene.add( new BoxHelper( group ) );
					scene.add( new BoxHelper( scene ) );


				} );

				//

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

			}

			function onWindowResize() {

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

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

			}

			function animate() {

				requestAnimationFrame( animate );

				var time = - performance.now() * 0.0003;

				camera.position.x = 400 * Math.cos( time );
				camera.position.z = 400 * Math.sin( time );
				camera.lookAt( scene.position );

				light.position.x = Math.sin( time * 1.7 ) * 300;
				light.position.y = Math.cos( time * 1.5 ) * 400;
				light.position.z = Math.cos( time * 1.3 ) * 300;

				if ( fnh ) fnh.update();
				if ( vnh ) vnh.update();

				renderer.render( scene, camera );

			}

		</script>

	</body>
</html>