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		<h1>[name]</h1>

		<p class="desc">A loader for loading a <em>.obj</em> resource.<br />
			The <a href="https://en.wikipedia.org/wiki/Wavefront_.obj_file">OBJ file format</a> is a simple data-format
			that represents 3D geometry in a human readable format as, the position of each vertex, the UV position of
			each texture coordinate vertex, vertex normals, and the faces that make each polygon defined as a list of
			vertices, and texture vertices.
		</p>

		<h2>代码示例</h2>

		<code>
		// instantiate the loader
		let loader = new OBJLoader2();

		// function called on successful load
		function callbackOnLoad ( object3d ) {
			scene.add( object3d );
		}

		// load a resource from provided URL synchronously
		loader.load( 'obj/female02/female02.obj', callbackOnLoad, null, null, null );
		</code>

		<h2>例子</h2>
		<p>
			[example:webgl_loader_obj2] - Simple example<br />
			[example:webgl_loader_obj2_options] - Example for multiple use-cases (parse and load, sync or in parallel to main (see [page:OBJLoader2Parallel]))
		</p>

		<h2>Constructor</h2>

		<h3>[name]( [param:LoadingManager manager] )</h3>
		<p>
			[page:LoadingManager manager] - The [page:LoadingManager loadingManager] for the loader to use. Default is [page:LoadingManager THREE.DefaultLoadingManager].<br>
		</p>
		<p>
			Creates a new [name]. Use it to load OBJ data from files or to parse OBJ data from arraybuffer or text.
		</p>


		<h2>Properties</h2>
		<p>See the base [page:Loader] class for common properties.</p>


		<h2>Methods</h2>
		<p>See the base [page:Loader] class for common methods.</p>


		<h3>[method:Object3D parse]( [param:arraybuffer content]|[param:String content] )</h3>
		<p>
			[[page:arraybuffer content]|[page:String content]] OBJ data as Uint8Array or String
		</p>
		<p>
			Parses OBJ data synchronously from arraybuffer or string and returns the [page:Object3D baseObject3d].
		</p>


		<h3>[method:null load]( [param:String url], [param:Function onLoad], [param:Function onProgress], [param:Function onError], [param:Function onMeshAlter] )</h3>
		<p>
			[page:String url] - A string containing the path/URL of the file to be loaded.<br>
			[page:Function onLoad] - A function to be called after loading is successfully completed. The function receives loaded [page:Object3D] as an argument.<br>
			[page:Function onProgress] - (optional) A function to be called while the loading is in progress. The argument will be the XMLHttpRequest instance, which contains [page:Integer total] and [page:Integer loaded] bytes.<br>
			[page:Function onError] - (optional) A function to be called if an error occurs during loading. The function receives the error as an argument.<br>
			[page:Function onMeshAlter] - (optional) A function to be called after a new mesh raw data becomes available for alteration.<br>
		</p>
		<p>
			Use this convenient method to load a file at the given URL. By default the fileLoader uses an ArrayBuffer.
		</p>


		<h3>[method:OBJLoader2 setLogging]( [param:Boolean enabled], [param:Boolean debug] )</h3>
		<p>
			[page:Boolean enabled] True or false.<br>
			[page:Boolean debug] True or false.
		</p>
		<p>
			Enable or disable logging in general (except warn and error), plus enable or disable debug logging.
		</p>


		<h3>[method:OBJLoader2 addMaterialPerSmoothingGroup] ( [param:boolean materialPerSmoothingGroup] )</h3>
		<p>
			[page:boolean materialPerSmoothingGroup]
		</p>
		<p>
			Tells whether a material shall be created per smoothing group.
		</p>


		<h3>[method:OBJLoader2 setUseOAsMesh] ( [param:boolean useOAsMesh] )</h3>
		<p>
			[page:boolean useOAsMesh]
		</p>
		<p>
			Usually 'o' is meta-information and does not result in creation of new meshes, but mesh creation on occurrence of "o" can be enforced.
		</p>


		<h3>[method:OBJLoader2 setUseIndices]( [param:Boolean useIndices] )</h3>
		<p>
			[page:Boolean useIndices]
		</p>
		<p>
			Instructs loaders to create indexed [page:BufferGeometry].
		</p>


		<h3>[method:OBJLoader2 setDisregardNormals]( [param:Boolean disregardNormals] )</h3>
		<p>
			[page:Boolean disregardNormals]
		</p>
		<p>
			Tells whether normals should be completely disregarded and regenerated.
		</p>


		<h3>[method:OBJLoader2 setModelName] ( [param:String modelName] )</h3>
		<p>
			[page:String modelName]
		</p>
		<p>
			Set the name of the model.
		</p>


		<h3>[method:OBJLoader2 setBaseObject3d] ( [param:Object3d baseObject3d] )</h3>
		<p>
			[page:Object3D baseObject3d - Object already attached to scenegraph where new meshes will be attached to
		</p>
		<p>
			Set the node where the loaded objects will be attached directly.
		</p>


		<h3>[method:OBJLoader2 setMaterials] ( [param:Object materials] )</h3>
		<p>
			[page:Object materials] -  materials Object with named [page:Material Materials]
		</p>
		<p>
			Add materials as associated array.
		</p>


		<h3>[method:OBJLoader2 setCallbackOnLoad] ( [param:Function onLoad] )</h3>
		<p>
			[page:Function onLoad]
		</p>
		<p>
			Register a function that is called when parsing was completed.
		</p>


		<h3>[method:OBJLoader2 setCallbackOnAssetAvailable] ( [param:Function onAssetAvailable] )</h3>
		<p>
			[page:Function onAssetAvailable]
		</p>
		<p>
			Register a function that is called once an asset (mesh/material) becomes available.
		</p>


		<h3>[method:OBJLoader2 setCallbackOnProgress] ( [param:Function onProgress] )</h3>
		<p>
			[page:Function onProgress]
		</p>
		<p>
			Register a function that is used to report overall processing progress.
		</p>


		<h3>[method:OBJLoader2 setCallbackOnError] ( [param:Function onError] )</h3>
		<p>
			[page:Function onError]
		</p>
		<p>
			Register an error handler function that is called if errors occur. It can decide to just log or to throw an exception.
		</p>


		<h3>[method:OBJLoader2 setCallbackOnMeshAlter] ( [param:Function onMeshAlter] )</h3>
		<p>
			[page:Function onMeshAlter]
		</p>
		<p>
			Register a function that is called once a single mesh is available and it could be altered by the supplied function.
		</p>


		<h2>Source</h2>

		<p>
			[link:https://github.com/mrdoob/three.js/blob/master/examples/jsm/loaders/OBJLoader2.js examples/jsm/loaders/OBJLoader2.js]
		</p>
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