javascript
/
three.js
miroir de https://github.com/tazdij/three.js.git


			
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							<!DOCTYPE html>
<html lang="en">
	<head>
		<title>three.js webgl - exporter - obj</title>
		<meta charset="utf-8">
		<style>
			body {
				font-family: Monospace;
				background-color: #000000;
				margin: 0px;
				overflow: hidden;
			}
			
			#info {
				color: #fff;
				position: absolute;
				top: 10px;
				width: 100%;
				text-align: center;
				z-index: 100;
				display: block;
			}

			div.floating {
				color : #ffffff;
				background : #000000;
				opacity : 0.8;
				width : 80%;
				height : 80%;
				position : absolute;
				left : 10%;
				top : 10%;
				border : 1px solid #555555;
				padding : 10px;
				display : none;
				overflow : auto;
				z-index: 100;
			}
			
			span.link {
				color: skyblue;
				cursor: pointer;
				text-decoration : underline;
			}
			
			a {
				color: skyblue
			}
		</style>
	</head>
	<body>
		<div id="info">
			<a href="http://threejs.org" target="_blank">three.js</a>
			- geometries:
			<span class="link" id="triangle">triangle</span>,
			<span class="link" id="cube">cube</span>,
			<span class="link" id="cylinder">cylinder</span>,
			<span class="link" id="both">both</span>
			- <span class="link" id="export">export to obj</span>
		</div>
		
		<script src="../build/three.min.js"></script>
		<script src="js/exporters/OBJExporter.js"></script>

		<script>

			var camera, scene, light, renderer;
			var exportButton, floatingDiv;
			var mouseX = 0, mouseY = 0;

			function exportToObj ()
			{
				var exporter = new THREE.OBJExporter ();
				var result = exporter.parse (scene);
				floatingDiv.style.display = 'block';
				floatingDiv.innerHTML = result.split ('\n').join ('<br />');
			}
			
			function addGeometry (type)
			{
				for (var i = 0; i < scene.children.length; i++) {
					var current = scene.children[i];
					if (current instanceof THREE.Mesh) {
						scene.remove (current);
						i--;
					}
				}
	
				if (type == 1) {
					var material = new THREE.MeshLambertMaterial ( { color : 0x00cc00 } );
					var geometry = new THREE.Geometry ();
					geometry.vertices.push (new THREE.Vector3 (-50, -50, 0));
					geometry.vertices.push (new THREE.Vector3 (50, -50, 0));
					geometry.vertices.push (new THREE.Vector3 (50, 50, 0));
					var face = new THREE.Face3 (0, 1, 2);
					geometry.faces.push (face);	
					geometry.computeFaceNormals ();
					scene.add( new THREE.Mesh( geometry, material ) );
				} else if (type == 2) {
					var material = new THREE.MeshLambertMaterial ( { color : 0x00cc00 } );
					var geometry = new THREE.BoxGeometry( 100, 100, 100 );
					scene.add( new THREE.Mesh( geometry, material ) );
				} else if (type == 3) {
					var material = new THREE.MeshLambertMaterial ( { color : 0x00cc00 } );
					var geometry = new THREE.CylinderGeometry( 50, 50, 100, 30, 1 );
					scene.add( new THREE.Mesh( geometry, material ) );
				} else if (type == 4) {
					var material = new THREE.MeshLambertMaterial ( { color : 0x00cc00 } );

					var geometry = new THREE.Geometry ();
					geometry.vertices.push (new THREE.Vector3 (-50, -50, 0));
					geometry.vertices.push (new THREE.Vector3 (50, -50, 0));
					geometry.vertices.push (new THREE.Vector3 (50, 50, 0));
					geometry.faces.push (new THREE.Face3 (0, 1, 2));	
					geometry.computeFaceNormals ();
					var mesh = new THREE.Mesh( geometry, material );
					mesh.position.x = -200;
					scene.add( mesh );

					var geometry2 = new THREE.BoxGeometry( 100, 100, 100 );
					var mesh2 = new THREE.Mesh( geometry2, material );
					scene.add( mesh2 );

					var geometry3 = new THREE.CylinderGeometry( 50, 50, 100, 30, 1 );
					var mesh3 = new THREE.Mesh( geometry3, material );
					mesh3.position.x = 200;

					scene.add( mesh3 );
				}
			}
			
			function init() {

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

				camera = new THREE.PerspectiveCamera( 70, window.innerWidth / window.innerHeight, 1, 1000 );
				camera.position.set (0, 0, 400);

				scene = new THREE.Scene();

				light = new THREE.DirectionalLight( 0xffffff );
				scene.add( light );

				addGeometry (1);
				
				window.addEventListener( 'click', onWindowClick, false );
				window.addEventListener( 'resize', onWindowResize, false );
				document.addEventListener( 'mousemove', onDocumentMouseMove, false );
				document.addEventListener( 'mouseover', onDocumentMouseMove, false );
				
				document.getElementById( 'triangle' ).addEventListener( 'click', function() { addGeometry (1); });
				document.getElementById( 'cube' ).addEventListener( 'click', function() { addGeometry (2); });
				document.getElementById( 'cylinder' ).addEventListener( 'click', function() { addGeometry (3); });
				document.getElementById( 'both' ).addEventListener( 'click', function() { addGeometry (4); });
				
				exportButton = document.getElementById( 'export' );
				exportButton.addEventListener( 'click', function() { exportToObj (); });
				
				floatingDiv = document.createElement ('div');
				floatingDiv.className = 'floating';
				document.body.appendChild (floatingDiv);
			}

			function onWindowClick(event) {

				var needToClose = true;
				var target = event.target;
				while (target !== null) {
					if (target === floatingDiv || target == exportButton) {
						needToClose = false;
						break;
					}
					target = target.parentElement;
				}
				
				if (needToClose) {
					floatingDiv.style.display = 'none';
				}

			}			
			
			function onWindowResize() {

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

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

			}

			function onDocumentMouseMove( event ) {

				var windowHalfX = window.innerWidth / 2;
				var windowHalfY = window.innerHeight / 2;
				mouseX = ( event.clientX - windowHalfX ) / 2;
				mouseY = ( event.clientY - windowHalfY ) / 2;

			}

			function animate() {

				requestAnimationFrame( animate );

				camera.position.x += ( mouseX - camera.position.x ) * .05;
				camera.position.y += ( -mouseY - camera.position.y ) * .05;
				camera.lookAt( new THREE.Vector3 (0.0, 0.0, 0.0) );

				light.position.set( camera.position.x, camera.position.y, camera.position.z ).normalize ();
				renderer.render( scene, camera );

			}

			init();
			animate();


		</script>

	</body>
</html>