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138 lines
4.1 KiB
138 lines
4.1 KiB
3 years ago
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<!DOCTYPE html>
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<html lang="zh">
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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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<h1>[name]</h1>
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<p class="desc">
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An exporter for *glTF* 2.0.
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<br /><br />
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<a href="https://www.khronos.org/gltf" target="_blank">glTF</a> (GL Transmission Format) is an
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<a href="https://github.com/KhronosGroup/glTF/tree/master/specification/2.0" target="_blank">open format specification</a>
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for efficient delivery and loading of 3D content. Assets may be provided either in JSON (.gltf)
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or binary (.glb) format. External files store textures (.jpg, .png) and additional binary
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data (.bin). A glTF asset may deliver one or more scenes, including meshes, materials,
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textures, skins, skeletons, morph targets, animations, lights, and/or cameras.
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</p>
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<h2>Extensions</h2>
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<p>
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GLTFExporter supports the following
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[link:https://github.com/KhronosGroup/glTF/tree/master/extensions/ glTF 2.0 extensions]:
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</p>
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<ul>
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<li>KHR_lights_punctual</li>
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<li>KHR_materials_unlit</li>
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<li>KHR_texture_transform</li>
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</ul>
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<p>
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The following glTF 2.0 extension is supported by an external user plugin
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</p>
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<ul>
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<li>[link:https://github.com/takahirox/three-gltf-extensions KHR_materials_variants]</li>
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</ul>
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<h2>代码示例</h2>
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<code>
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// Instantiate a exporter
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const exporter = new GLTFExporter();
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// Parse the input and generate the glTF output
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exporter.parse(
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scene,
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// called when the gltf has been generated
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function ( gltf ) {
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console.log( gltf );
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downloadJSON( gltf );
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},
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// called when there is an error in the generation
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function ( error ) {
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console.log( 'An error happened' );
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},
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options
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);
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</code>
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<h2>例子</h2>
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<p>
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[example:misc_exporter_gltf]
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</p>
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<h2>Constructor</h2>
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<h3>[name]()</h3>
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<p>
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</p>
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<p>
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Creates a new [name].
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</p>
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<h2>Methods</h2>
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<h3>[method:undefined parse]( [param:Object3D input], [param:Function onCompleted], [param:Function onError], [param:Object options] )</h3>
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<p>
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[page:Object input] — Scenes or objects to export. Valid options:<br />
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<ul>
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<li>
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Export scenes
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<code>
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exporter.parse( scene1, ... )
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exporter.parse( [ scene1, scene2 ], ... )
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</code>
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</li>
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<li>
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Export objects (It will create a new Scene to hold all the objects)
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<code>
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exporter.parse( object1, ... )
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exporter.parse( [ object1, object2 ], ... )
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</code>
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</li>
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<li>
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Mix scenes and objects (It will export the scenes as usual but it will create a new scene to hold all the single objects).
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<code>
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exporter.parse( [ scene1, object1, object2, scene2 ], ... )
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</code>
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</li>
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</ul>
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[page:Function onCompleted] — Will be called when the export completes. The argument will be the generated glTF JSON or binary ArrayBuffer.<br />
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[page:Function onError] — Will be called if there are any errors during the gltf generation.<br />
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[page:Options options] — Export options<br />
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<ul>
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<li>trs - bool. Export position, rotation and scale instead of matrix per node. Default is false</li>
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<li>onlyVisible - bool. Export only visible objects. Default is true.</li>
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<li>binary - bool. Export in binary (.glb) format, returning an ArrayBuffer. Default is false.</li>
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<li>maxTextureSize - int. Restricts the image maximum size (both width and height) to the given value. Default is Infinity.</li>
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<li>animations - Array<[page:AnimationClip AnimationClip]>. List of animations to be included in the export.</li>
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<li>forceIndices - bool. Generate indices for non-index geometry and export with them. Default is false.</li>
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<li>includeCustomExtensions - bool. Export custom glTF extensions defined on an object's <em>userData.gltfExtensions</em> property. Default is false.</li>
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</ul>
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</p>
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<p>
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Generates a .gltf (JSON) or .glb (binary) output from the input (Scenes or Objects)
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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/examples/jsm/exporters/GLTFExporter.js examples/jsm/exporters/GLTFExporter.js]
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</p>
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</body>
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</html>
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