javascript
/
three.js
mirror of https://github.com/tazdij/three.js.git


			
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		[page:Loader] &rarr;

		<h1>[name]</h1>

		<p class="desc">
			A loader for loading a JSON resource in the [link:https://github.com/mrdoob/three.js/wiki/JSON-Object-Scene-format-4 JSON Object/Scene format].<br /><br />

			This uses the [page:FileLoader] internally for loading files.
		</p>

		<h2>Code Example</h2>

		<code>
		const loader = new THREE.ObjectLoader();

		loader.load(
			// resource URL
			"models/json/example.json",

			// onLoad callback
			// Here the loaded data is assumed to be an object
			function ( obj ) {
				// Add the loaded object to the scene
				scene.add( obj );
			},

			// onProgress callback
			function ( xhr ) {
				console.log( (xhr.loaded / xhr.total * 100) + '% loaded' );
			},

			// onError callback
			function ( err ) {
				console.error( 'An error happened' );
			}
		);


		// Alternatively, to parse a previously loaded JSON structure
		const object = loader.parse( a_json_object );

		scene.add( object );
		</code>

		<h2>Examples</h2>

		<p>
			[example:webgl_materials_lightmap WebGL / materials / lightmap]
		</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 /><br />

		Creates a new [name].
		</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:null load]( [param:String url], [param:Function onLoad], [param:Function onProgress], [param:Function onError] )</h3>
		<p>
		[page:String url] — the path or URL to the file. This can also be a
			[link:https://developer.mozilla.org/en-US/docs/Web/HTTP/Basics_of_HTTP/Data_URIs Data URI].<br />
		[page:Function onLoad] — Will be called when load completes. The argument will be the loaded [page:Object3D object].<br />
		[page:Function onProgress] — Will be called while load progresses. The argument will be the XMLHttpRequest instance, which contains .[page:Integer total] and .[page:Integer loaded] bytes.<br />
		[page:Function onError] — Will be called when load errors.<br />
		</p>
		<p>
		Begin loading from url and call onLoad with the parsed response content.
		</p>


		<h3>[method:Object3D parse]( [param:Object json], [param:Function onLoad]  )</h3>
		<p>
		[page:Object json] — required. The JSON source to parse.<br /><br />
		[page:Function onLoad] — Will be called when parsed completes. The argument will be the parsed [page:Object3D object].<br /><br />

		Parse a <em>JSON</em> structure and return a threejs object.
		This is used internally by [page:.load], but can also be used directly to parse
		a previously loaded JSON structure.
		</p>

		<h3>[method:Object3D parseGeometries]( [param:Object json] )</h3>
		<p>
		[page:Object json] — required. The JSON source to parse.<br /><br />

		This is used [page:.parse] to parse any [page:Geometry geometries] or [page:BufferGeometry buffer geometries]  in the JSON structure.
		</p>

		<h3>[method:Object3D parseMaterials]( [param:Object json] )</h3>
		<p>
		[page:Object json] — required. The JSON source to parse.<br /><br />

		This is used [page:.parse] to parse any materials in the JSON structure using [page:MaterialLoader].
		</p>

		<h3>[method:Object3D parseAnimations]( [param:Object json] )</h3>
		<p>
		[page:Object json] — required. The JSON source to parse.<br /><br />

		This is used [page:.parse] to parse any animations in the JSON structure, using [page:AnimationClip.parse].
		</p>

		<h3>[method:Object3D parseImages]( [param:Object json] )</h3>
		<p>
		[page:Object json] — required. The JSON source to parse.<br /><br />

		This is used [page:.parse] to parse any images in the JSON structure, using [page:ImageLoader].
		</p>

		<h3>[method:Object3D parseTextures]( [param:Object json] )</h3>
		<p>
		[page:Object json] — required. The JSON source to parse.<br /><br />

		This is used [page:.parse] to parse any textures in the JSON structure.
		</p>

		<h3>[method:Object3D parseObject]( [param:Object json] )</h3>
		<p>
		[page:Object json] — required. The JSON source to parse.<br /><br />

		This is used [page:.parse] to parse any objects in the JSON structure.
		Objects can be of the following types:

		<ul>
			<li>
				[page:Scene]
			</li>
			<li>
				[page:PerspectiveCamera]
			</li>
			<li>
				[page:OrthographicCamera]
			</li>
			<li>
				[page:AmbientLight]
			</li>
			<li>
				[page:DirectionalLight]
			</li>
			<li>
				[page:PointLight]
			</li>
			<li>
				[page:SpotLight]
			</li>
			<li>
				[page:HemisphereLight]
			</li>
			<li>
				[page:Mesh]
			</li>
			<li>
				[page:LOD]
			</li>
			<li>
				[page:Line]
			</li>
			<li>
				[page:LineSegments]
			</li>
			<li>
				[page:Points]
			</li>
			<li>
				[page:Sprite]
			</li>
			<li>
				[page:Group]
			</li>
			<li>
				[page:Object3D]
			</li>

		</ul>
		</p>

		<h2>Source</h2>

		<p>
			[link:https://github.com/mrdoob/three.js/blob/master/src/[path].js src/[path].js]
		</p>
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