@softrobot/loaders.gl-draco/dist/es6/draco-loader.js

Framework-independent loader and writer for Draco compressed meshes and point clouds

import { VERSION } from './lib/utils/version';
import { loadDracoDecoderModule } from './lib/draco-module-loader';
import DracoParser from './lib/draco-parser';
export const DracoWorkerLoader = {
  name: 'Draco',
  id: 'draco',
  module: 'draco',
  version: VERSION,
  worker: true,
  extensions: ['drc'],
  mimeTypes: ['application/octet-stream'],
  binary: true,
  tests: ['DRACO'],
  options: {
    draco: {
      decoderType: typeof WebAssembly === 'object' ? 'wasm' : 'js',
      libraryPath: "libs/",
      extraAttributes: {}
    }
  }
};
export const DracoLoader = { ...DracoWorkerLoader,
  parse
};

async function parse(arrayBuffer, options, context, loader) {
  const {
    draco
  } = await loadDracoDecoderModule(options);
  const dracoParser = new DracoParser(draco);

  try {
    return dracoParser.parseSync(arrayBuffer, {
      extraAttributes: options.draco && options.draco.extraAttributes || null,
      ...(options.parseOptions || {})
    });
  } finally {
    dracoParser.destroy();
  }
}
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