javascript
/
three.js
镜像来自 https://github.com/tazdij/three.js.git


			
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							<!DOCTYPE html>
<html lang="en">
	<head>
		<title>three.js webgl - OBJLoader2 usage options</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 {
				font-family: Monospace;
				background-color: #000;
				color: #fff;
				margin: 0 0 0 0;
				padding: 0 0 0 0;
				border: none;
				cursor: default;
			}
			#info {
				color: #fff;
				position: absolute;
				top: 10px;
				width: 100%;
				text-align: center;
				z-index: 100;
				display:block;
			}
			#info a {
				color: #f00;
				font-weight: bold;
				text-decoration: underline;
				cursor: pointer
			}
			#glFullscreen {
				width: 100%;
				height: 100vh;
				min-width: 640px;
				min-height: 360px;
				position: relative;
				overflow: hidden;
				z-index: 0;
			}
			#example {
				width: 100%;
				height: 100%;
				top: 0;
				left: 0;
				background-color: #000000;
			}
			#feedback {
				color: darkorange;
			}
			#dat {
				user-select: none;
				position: absolute;
				left: 0;
				top: 0;
				z-Index: 200;
			}
		</style>

	</head>

	<body>
		<div id="glFullscreen">
			<canvas id="example"></canvas>
		</div>
		<div id="dat">

		</div>
		<div id="info">
			<a href="http://threejs.org" target="_blank" rel="noopener">three.js</a> - OBJLoader2 usage options
			<div id="feedback"></div>
		</div>

		<script src="../build/three.js"></script>
		<script src="js/controls/TrackballControls.js"></script>
		<script src="js/loaders/MTLLoader.js"></script>
		<script src="js/libs/dat.gui.min.js"></script>

		<script src="js/loaders/LoaderSupport.js"></script>
		<script src="js/loaders/OBJLoader2.js"></script>
		<script>

			'use strict';

			var WWOBJLoader2Example = ( function () {

				var Validator = THREE.LoaderSupport.Validator;

				function WWOBJLoader2Example( elementToBindTo ) {

					this.renderer = null;
					this.canvas = elementToBindTo;
					this.aspectRatio = 1;
					this.recalcAspectRatio();

					this.scene = null;
					this.cameraDefaults = {
						posCamera: new THREE.Vector3( 0.0, 175.0, 500.0 ),
						posCameraTarget: new THREE.Vector3( 0, 0, 0 ),
						near: 0.1,
						far: 10000,
						fov: 45
					};
					this.camera = null;
					this.cameraTarget = this.cameraDefaults.posCameraTarget;

					this.controls = null;

					this.flatShading = false;
					this.doubleSide = false;

					this.cube = null;
					this.pivot = null;

				}

				WWOBJLoader2Example.prototype.initGL = function () {

					this.renderer = new THREE.WebGLRenderer( {
						canvas: this.canvas,
						antialias: true,
						autoClear: true
					} );
					this.renderer.setClearColor( 0x050505 );

					this.scene = new THREE.Scene();

					this.camera = new THREE.PerspectiveCamera( this.cameraDefaults.fov, this.aspectRatio, this.cameraDefaults.near, this.cameraDefaults.far );
					this.resetCamera();
					this.controls = new THREE.TrackballControls( this.camera, this.renderer.domElement );

					var ambientLight = new THREE.AmbientLight( 0x404040 );
					var directionalLight1 = new THREE.DirectionalLight( 0xC0C090 );
					var directionalLight2 = new THREE.DirectionalLight( 0xC0C090 );

					directionalLight1.position.set( - 100, - 50, 100 );
					directionalLight2.position.set( 100, 50, - 100 );

					this.scene.add( directionalLight1 );
					this.scene.add( directionalLight2 );
					this.scene.add( ambientLight );

					var helper = new THREE.GridHelper( 1200, 60, 0xFF4444, 0x404040 );
					this.scene.add( helper );

					var geometry = new THREE.BoxBufferGeometry( 10, 10, 10 );
					var material = new THREE.MeshNormalMaterial();
					this.cube = new THREE.Mesh( geometry, material );
					this.cube.position.set( 0, 0, 0 );
					this.scene.add( this.cube );

					this.pivot = new THREE.Object3D();
					this.pivot.name = 'Pivot';
					this.scene.add( this.pivot );

				};

				WWOBJLoader2Example.prototype.useParseSync = function () {

					var modelName = 'female02';
					this._reportProgress( { detail: { text: 'Loading: ' + modelName } } );

					var scope = this;
					var objLoader = new THREE.OBJLoader2();
					var onLoadMtl = function ( materials ) {

						objLoader.setModelName( modelName );
						objLoader.setMaterials( materials );

						var fileLoader = new THREE.FileLoader();
						fileLoader.setPath( '' );
						fileLoader.setResponseType( 'arraybuffer' );
						fileLoader.load( 'models/obj/female02/female02.obj',
							function ( content ) {

								var local = new THREE.Object3D();
								local.name = 'Pivot_female02';
								local.position.set( 75, 0, 0 );
								scope.pivot.add( local );
								local.add( objLoader.parse( content ) );

								scope._reportProgress( { detail: { text: 'Loading complete: ' + modelName } } );

							}
						);

					};
					objLoader.loadMtl( 'models/obj/female02/female02.mtl', null, onLoadMtl );

				};

				WWOBJLoader2Example.prototype.useParseAsync = function () {

					var modelName = 'female02_vertex';
					this._reportProgress( { detail: { text: 'Loading: ' + modelName } } );

					var callbackOnLoad = function ( event ) {

						var local = new THREE.Object3D();
						local.name = 'Pivot_female02_vertex';
						local.position.set( - 75, 0, 0 );
						scope.pivot.add( local );
						local.add( event.detail.loaderRootNode );

						scope._reportProgress( { detail: { text: 'Loading complete: ' + event.detail.modelName } } );

					};

					var scope = this;
					var objLoader = new THREE.OBJLoader2();
					objLoader.setModelName( modelName );

					var fileLoader = new THREE.FileLoader();
					fileLoader.setPath( '' );
					fileLoader.setResponseType( 'arraybuffer' );
					var filename = 'models/obj/female02/female02_vertex_colors.obj';
					fileLoader.load( filename,
						function ( content ) {

							objLoader.parseAsync( content, callbackOnLoad );
							scope._reportProgress( { detail: { text: 'File loading complete: ' + filename } } );

						} );

				};

				WWOBJLoader2Example.prototype.useLoadSync = function () {

					var modelName = 'male02';
					this._reportProgress( { detail: { text: 'Loading: ' + modelName } } );

					var scope = this;
					var objLoader = new THREE.OBJLoader2();
					var callbackOnLoad = function ( event ) {

						var local = new THREE.Object3D();
						local.name = 'Pivot_male02';
						local.position.set( 0, 0, - 75 );
						scope.pivot.add( local );
						local.add( event.detail.loaderRootNode );

						scope._reportProgress( { detail: { text: 'Loading complete: ' + event.detail.modelName } } );

					};

					var onLoadMtl = function ( materials ) {

						objLoader.setModelName( modelName );
						objLoader.setMaterials( materials );
						objLoader.setUseIndices( true );
						objLoader.load( 'models/obj/male02/male02.obj', callbackOnLoad, null, null, null, false );

					};
					objLoader.loadMtl( 'models/obj/male02/male02.mtl', null, onLoadMtl );

				};

				WWOBJLoader2Example.prototype.useLoadAsync = function () {

					var modelName = 'WaltHead';
					this._reportProgress( { detail: { text: 'Loading: ' + modelName } } );

					var scope = this;
					var objLoader = new THREE.OBJLoader2();
					var callbackOnLoad = function ( event ) {

						objLoader.workerSupport.setTerminateRequested( true );

						var local = new THREE.Object3D();
						local.name = 'Pivot_WaltHead';
						local.position.set( - 125, 50, 0 );
						var scale = 0.5;
						local.scale.set( scale, scale, scale );
						scope.pivot.add( local );
						local.add( event.detail.loaderRootNode );

						scope._reportProgress( { detail: { text: 'Loading complete: ' + event.detail.modelName } } );

					};

					var onLoadMtl = function ( materials ) {

						objLoader.setModelName( modelName );
						objLoader.setMaterials( materials );
						objLoader.terminateWorkerOnLoad = false;
						objLoader.load( 'models/obj/walt/WaltHead.obj', callbackOnLoad, null, null, null, true );

					};
					objLoader.loadMtl( 'models/obj/walt/WaltHead.mtl', null, onLoadMtl );

				};

				WWOBJLoader2Example.prototype.useRunSync = function () {

					var scope = this;
					var callbackOnLoad = function ( event ) {

						scope._reportProgress( { detail: { text: 'Loading complete: ' + event.detail.modelName } } );

					};

					var prepData = new THREE.LoaderSupport.PrepData( 'cerberus' );
					var local = new THREE.Object3D();
					local.position.set( 0, 0, 100 );
					local.scale.set( 50.0, 50.0, 50.0 );
					this.pivot.add( local );
					prepData.streamMeshesTo = local;
					prepData.addResource( new THREE.LoaderSupport.ResourceDescriptor( 'models/obj/cerberus/Cerberus.obj', 'OBJ' ) );
					var callbacks = prepData.getCallbacks();
					callbacks.setCallbackOnProgress( this._reportProgress );
					callbacks.setCallbackOnLoad( callbackOnLoad );

					var objLoader = new THREE.OBJLoader2();
					objLoader.run( prepData );

				};

				WWOBJLoader2Example.prototype.useRunAsyncMeshAlter = function () {

					var scope = this;
					var callbackOnLoad = function ( event ) {

						scope._reportProgress( { detail: { text: 'Loading complete: ' + event.detail.modelName } } );

					};

					var prepData = new THREE.LoaderSupport.PrepData( 'vive-controller' );
					var local = new THREE.Object3D();
					local.position.set( 125, 50, 0 );
					local.name = 'Pivot_vive-controller';
					this.pivot.add( local );
					prepData.streamMeshesTo = local;
					prepData.addResource( new THREE.LoaderSupport.ResourceDescriptor( 'models/obj/vive-controller/vr_controller_vive_1_5.obj', 'OBJ' ) );
					prepData.useAsync = true;
					var callbacks = prepData.getCallbacks();
					var callbackMeshAlter = function ( event ) {

						var override = new THREE.LoaderSupport.LoadedMeshUserOverride( false, true );

						var mesh = new THREE.Mesh( event.detail.bufferGeometry, event.detail.material );
						var scale = 200.0;
						mesh.scale.set( scale, scale, scale );
						mesh.name = event.detail.meshName;
						var helper = new THREE.VertexNormalsHelper( mesh, 2, 0x00ff00, 1 );
						helper.name = 'VertexNormalsHelper';

						override.addMesh( mesh );
						override.addMesh( helper );

						return override;

					};
					callbacks.setCallbackOnMeshAlter( callbackMeshAlter );
					callbacks.setCallbackOnProgress( this._reportProgress );
					callbacks.setCallbackOnLoad( callbackOnLoad );

					var objLoader = new THREE.OBJLoader2();
					objLoader.run( prepData );

				};

				WWOBJLoader2Example.prototype.finalize = function () {

					this._reportProgress( { detail: { text: '' } } );

				};

				WWOBJLoader2Example.prototype._reportProgress = function ( event ) {

					var output = Validator.verifyInput( event.detail.text, '' );
					console.log( 'Progress: ' + output );
					document.getElementById( 'feedback' ).innerHTML = output;

				};

				WWOBJLoader2Example.prototype.resizeDisplayGL = function () {

					this.controls.handleResize();

					this.recalcAspectRatio();
					this.renderer.setSize( this.canvas.offsetWidth, this.canvas.offsetHeight, false );

					this.updateCamera();

				};

				WWOBJLoader2Example.prototype.recalcAspectRatio = function () {

					this.aspectRatio = ( this.canvas.offsetHeight === 0 ) ? 1 : this.canvas.offsetWidth / this.canvas.offsetHeight;

				};

				WWOBJLoader2Example.prototype.resetCamera = function () {

					this.camera.position.copy( this.cameraDefaults.posCamera );
					this.cameraTarget.copy( this.cameraDefaults.posCameraTarget );

					this.updateCamera();

				};

				WWOBJLoader2Example.prototype.updateCamera = function () {

					this.camera.aspect = this.aspectRatio;
					this.camera.lookAt( this.cameraTarget );
					this.camera.updateProjectionMatrix();

				};

				WWOBJLoader2Example.prototype.render = function () {

					if ( ! this.renderer.autoClear ) this.renderer.clear();

					this.controls.update();

					this.cube.rotation.x += 0.05;
					this.cube.rotation.y += 0.05;

					this.renderer.render( this.scene, this.camera );

				};

				WWOBJLoader2Example.prototype.alterShading = function () {

					var scope = this;
					scope.flatShading = ! scope.flatShading;
					console.log( scope.flatShading ? 'Enabling flat shading' : 'Enabling smooth shading' );

					scope.traversalFunction = function ( material ) {

						material.flatShading = scope.flatShading;
						material.needsUpdate = true;

					};
					var scopeTraverse = function ( object3d ) {

						scope.traverseScene( object3d );

					};
					scope.pivot.traverse( scopeTraverse );

				};

				WWOBJLoader2Example.prototype.alterDouble = function () {

					var scope = this;
					scope.doubleSide = ! scope.doubleSide;
					console.log( scope.doubleSide ? 'Enabling DoubleSide materials' : 'Enabling FrontSide materials' );

					scope.traversalFunction = function ( material ) {

						material.side = scope.doubleSide ? THREE.DoubleSide : THREE.FrontSide;

					};

					var scopeTraverse = function ( object3d ) {

						scope.traverseScene( object3d );

					};
					scope.pivot.traverse( scopeTraverse );

				};

				WWOBJLoader2Example.prototype.traverseScene = function ( object3d ) {

					if ( object3d.material instanceof THREE.MultiMaterial ) {

						var materials = object3d.material.materials;
						for ( var name in materials ) {

							if ( materials.hasOwnProperty( name ) )	this.traversalFunction( materials[ name ] );

						}

					} else if ( object3d.material ) {

						this.traversalFunction( object3d.material );

					}

				};

				return WWOBJLoader2Example;

			} )();

			var app = new WWOBJLoader2Example( document.getElementById( 'example' ) );

			var wwObjLoader2Control = {
				flatShading: app.flatShading,
				doubleSide: app.doubleSide
			};

			var menuDiv = document.getElementById( 'dat' );
			var gui = new dat.GUI( {
				autoPlace: false,
				width: 320
			} );
			menuDiv.appendChild( gui.domElement );

			var folderOptions = gui.addFolder( 'WWOBJLoader2 Options' );
			var controlFlat = folderOptions.add( wwObjLoader2Control, 'flatShading' ).name( 'Flat Shading' );
			controlFlat.onChange( function ( value ) {

				console.log( 'Setting flatShading to: ' + value );
				app.alterShading();

			} );

			var controlDouble = folderOptions.add( wwObjLoader2Control, 'doubleSide' ).name( 'Double Side Materials' );
			controlDouble.onChange( function ( value ) {

				console.log( 'Setting doubleSide to: ' + value );
				app.alterDouble();

			} );
			folderOptions.open();


			// init three.js example application
			var resizeWindow = function () {

				app.resizeDisplayGL();

			};

			var render = function () {

				requestAnimationFrame( render );
				app.render();

			};
			window.addEventListener( 'resize', resizeWindow, false );

			console.log( 'Starting initialisation phase...' );
			app.initGL();
			app.resizeDisplayGL();

			// kick render loop
			render();

			// Load a file with OBJLoader.parse synchronously
			app.useParseSync();

			// Load a file with OBJLoader.parseAsync asynchronously using a worker
			app.useParseAsync();

			// Load a file with OBJLoader.load synchronously
			app.useLoadSync();

			// Load a file with OBJLoader.load asynchronously
			app.useLoadAsync();

			// Load a file with OBJLoader.run synchronously
			app.useRunSync();

			// Load a file with OBJLoader.run asynchronously and add normals during onMeshAlter
			app.useRunAsyncMeshAlter();

			app.finalize();

		</script>
	</body>
</html>