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Docs: Add
DRACOExporter
page. (#25349)
* Create DRACOExporter.html Create documentation for DRACOExporter * Update DRACOExporter.js add missing option "exportColor" to header comment. * Update list.json Add entry for English version of DRACOExporter in list.json since this is a new documentation page. * Update DRACOExporter.html Update formatting of multi-type definition. * Update DRACOExporter.html Update formatting of all multi-type definitions.
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<!DOCTYPE html> | ||
<html lang="en"> | ||
<head> | ||
<meta charset="utf-8" /> | ||
<base href="../../../" /> | ||
<script src="page.js"></script> | ||
<link type="text/css" rel="stylesheet" href="page.css" /> | ||
</head> | ||
<body> | ||
<h1>[name]</h1> | ||
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<p class="desc"> | ||
An exporter to compress geometry with the Draco library. <br /><br /> | ||
[link:https://google.github.io/draco/ Draco] is an open source library for compressing and | ||
decompressing 3D meshes and point clouds. Compressed geometry can be significantly smaller, | ||
at the cost of additional decoding time on the client device. | ||
</p> | ||
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<p> | ||
Standalone Draco files have a `.drc` extension, and contain vertex positions, | ||
normals, colors, and other attributes. Draco files *do not* contain materials, | ||
textures, animation, or node hierarchies – to use these features, embed Draco geometry | ||
inside of a glTF file. A normal glTF file can be converted to a Draco-compressed glTF file | ||
using [link:https://github.com/AnalyticalGraphicsInc/gltf-pipeline glTF-Pipeline]. | ||
</p> | ||
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<h2>Code Example</h2> | ||
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<code> | ||
// Instantiate a exporter | ||
const exporter = new DRACOExporter(); | ||
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// Parse the input and generate the DRACO encoded output | ||
const binaryData = exporter.parse( mesh, options ); | ||
</code> | ||
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<h2>Examples</h2> | ||
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<p> | ||
[example:misc_exporter_draco] | ||
</p> | ||
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<h2>Constructor</h2> | ||
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<h3>[name]()</h3> | ||
<p> | ||
Creates a new [name]. | ||
</p> | ||
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<h2>Methods</h2> | ||
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<h3>[method:Int8Array parse]( [param:Mesh object] | [param:Points object], [param:Object options] )</h3> | ||
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<p> | ||
[page:Mesh object] | [page:Points object] — Mesh or Points to encode.<br /> | ||
[page:Options options] — Optional export options<br /> | ||
<ul> | ||
<li>decodeSpeed - int. Indicates how to tune the encoder regarding decode speed (0 gives better speed but worst quality). Default is 5</li> | ||
<li>encodeSpeed - int. Indicates how to tune the encoder parameters (0 gives better speed but worst quality). Default is 5.</li> | ||
<li>encoderMethod - int. Either sequential (very little compression) or Edgebreaker. Edgebreaker traverses the triangles of the mesh in a deterministic, spiral-like way which provides most of the benefits of this data format. Default is DRACOExporter.MESH_EDGEBREAKER_ENCODING.</li> | ||
<li>quantization - Array of int. Indicates the presision of each type of data stored in the draco file in the order (POSITION, NORMAL, COLOR, TEX_COORD, GENERIC). Default is [ 16, 8, 8, 8, 8 ]</li> | ||
<li>exportUvs - bool. Default is true.</li> | ||
<li>exportNormals - bool. Default is true.</li> | ||
<li>exportColor - bool. Default is false.</li> | ||
</ul> | ||
</p> | ||
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<h2>Source</h2> | ||
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<p> | ||
[link:https://github.com/mrdoob/three.js/blob/master/examples/jsm/exporters/DRACOExporter.js examples/jsm/exporters/DRACOExporter.js] | ||
</p> | ||
</body> | ||
</html> |
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