DracoWriter

The DracoWriter encodes a mesh or point cloud using Draco compression.

Loader	Characteristic
File Format	Draco
Data Format	Mesh
File Extension	.drc
File Type	Binary
Support API	encode

Support

See Draco docs.

Usage

import {DracoWriter} from '@loaders.gl/draco';
import {encode} from '@loaders.gl/core';

const data = encode(url, DracoWriter, options);

Options

Option	Type	Default	Description
draco.pointcloud	Boolean	false	Whether to compress as point cloud (GL.POINTS)
draco.speed	Number		Speed vs Quality, see Draco documentation
draco.method	String		Compression method, see Draco documentation
draco.quantization	[Number, Number]		Quantization parameters, see Draco documentation

Dependencies

Draco libraries by default are loaded from CDN, but can be bundled and injected. See [modules/draco/docs] for details.

Module Overrides

Use options.modules to override the Draco encoder runtime used by DracoWriter.

• modules.draco3d: supply the bundled draco3d package. DracoWriter uses createEncoderModule() from this object.
• 'draco_encoder.js': override the URL used for the Draco encoder runtime.