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149 lines
5.0 KiB
149 lines
5.0 KiB
2 years ago
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<!DOCTYPE html>
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<html lang="en">
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<head>
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<meta charset="utf-8" />
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<base href="../../../" />
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<script src="page.js"></script>
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<link type="text/css" rel="stylesheet" href="page.css" />
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</head>
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<body>
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[page:Loader] →
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<h1>[name]</h1>
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<p class="desc">
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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 />
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This uses the [page:FileLoader] internally for loading files.
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</p>
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<h2>Code Example</h2>
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<code>
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const loader = new THREE.ObjectLoader();
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loader.load(
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// resource URL
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"models/json/example.json",
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// onLoad callback
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// Here the loaded data is assumed to be an object
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function ( obj ) {
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// Add the loaded object to the scene
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scene.add( obj );
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},
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// onProgress callback
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function ( xhr ) {
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console.log( (xhr.loaded / xhr.total * 100) + '% loaded' );
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},
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// onError callback
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function ( err ) {
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console.error( 'An error happened' );
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}
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);
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// Alternatively, to parse a previously loaded JSON structure
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const object = loader.parse( a_json_object );
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scene.add( object );
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</code>
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<h2>Examples</h2>
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<p>
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[example:webgl_materials_lightmap WebGL / materials / lightmap]
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</p>
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<h2>Constructor</h2>
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<h3>[name]( [param:LoadingManager manager] )</h3>
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<p>
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[page:LoadingManager manager] — The [page:LoadingManager loadingManager] for the loader to use. Default is [page:LoadingManager THREE.DefaultLoadingManager].<br /><br />
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Creates a new [name].
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</p>
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<h2>Properties</h2>
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<p>See the base [page:Loader] class for common properties.</p>
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<h2>Methods</h2>
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<p>See the base [page:Loader] class for common methods.</p>
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<h3>[method:undefined load]( [param:String url], [param:Function onLoad], [param:Function onProgress], [param:Function onError] )</h3>
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<p>
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[page:String url] — the path or URL to the file. This can also be a
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[link:https://developer.mozilla.org/en-US/docs/Web/HTTP/Basics_of_HTTP/Data_URIs Data URI].<br />
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[page:Function onLoad] — Will be called when load completes. The argument will be the loaded [page:Object3D object].<br />
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[page:Function onProgress] (optional) — Will be called while load progresses. The argument will be the ProgressEvent instance, which contains .[page:Boolean lengthComputable], .[page:Integer total] and .[page:Integer loaded]. If the server does not set the Content-Length header; .[page:Integer total] will be 0.<br />
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[page:Function onError] (optional) — Will be called when load errors.<br />
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</p>
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<p>
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Begin loading from url and call onLoad with the parsed response content.
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</p>
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<h3>[method:Object3D parse]( [param:Object json], [param:Function onLoad] )</h3>
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<p>
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[page:Object json] — required. The JSON source to parse.<br /><br />
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[page:Function onLoad] — Will be called when parsed completes. The argument will be the parsed [page:Object3D object].<br /><br />
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Parse a `JSON` structure and return a three.js object.
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This is used internally by [page:.load]() but can also be used directly to parse a previously loaded JSON structure.
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</p>
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<h3>[method:Object parseGeometries]( [param:Object json] )</h3>
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<p>
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[page:Object json] — required. The JSON source to parse.<br /><br />
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This is used by [page:.parse]() to parse any [page:BufferGeometry geometries] in the JSON structure.
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</p>
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<h3>[method:Object parseMaterials]( [param:Object json] )</h3>
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<p>
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[page:Object json] — required. The JSON source to parse.<br /><br />
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This is used by [page:.parse]() to parse any materials in the JSON structure using [page:MaterialLoader].
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</p>
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<h3>[method:Object parseAnimations]( [param:Object json] )</h3>
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<p>
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[page:Object json] — required. The JSON source to parse.<br /><br />
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This is used by [page:.parse]() to parse any animations in the JSON structure, using [page:AnimationClip.parse]().
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</p>
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<h3>[method:Object parseImages]( [param:Object json] )</h3>
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<p>
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[page:Object json] — required. The JSON source to parse.<br /><br />
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This is used by [page:.parse]() to parse any images in the JSON structure, using [page:ImageLoader].
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</p>
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<h3>[method:Object parseTextures]( [param:Object json] )</h3>
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<p>
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[page:Object json] — required. The JSON source to parse.<br /><br />
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This is used by [page:.parse]() to parse any textures in the JSON structure.
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</p>
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<h3>[method:Object3D parseObject]( [param:Object json], [param:BufferGeometry geometries], [param:Material materials], [param:AnimationClip animations] )</h3>
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<p>
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[page:Object json] — required. The JSON source to parse.<br />
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[page:BufferGeometry geometries] — required. The geometries of the JSON.<br />
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[page:Material materials] — required. The materials of the JSON.<br />
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[page:AnimationClip animations] — required. The animations of the JSON.<br /><br />
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This is used by [page:.parse]() to parse any 3D objects in the JSON structure.
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</p>
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<h2>Source</h2>
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<p>
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[link:https://github.com/mrdoob/three.js/blob/master/src/[path].js src/[path].js]
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</p>
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</body>
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</html>
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