@loaders.gl/draco

What is @loaders.gl/draco?

@loaders.gl/draco is a module within the loaders.gl framework that provides support for loading and decoding Draco compressed 3D geometries. Draco is a library for compressing and decompressing 3D geometric meshes and point clouds, which significantly reduces the size of 3D assets.

What are @loaders.gl/draco's main functionalities?

Loading Draco Compressed Data

This feature allows you to load Draco compressed data from a specified URL. The `DracoLoader` is used in conjunction with the `load` function from `@loaders.gl/core` to fetch and decode the compressed 3D geometry.

const { DracoLoader } = require('@loaders.gl/draco');
const { load } = require('@loaders.gl/core');

async function loadDracoData(url) {
  const data = await load(url, DracoLoader);
  console.log(data);
}

loadDracoData('path/to/draco/file.drc');

Decoding Draco Data

This feature allows you to decode Draco compressed data from an ArrayBuffer. The `parse` function from `@loaders.gl/core` is used along with the `DracoLoader` to decode the data into a usable format.

const { DracoLoader } = require('@loaders.gl/draco');
const { parse } = require('@loaders.gl/core');

async function decodeDracoData(arrayBuffer) {
  const data = await parse(arrayBuffer, DracoLoader);
  console.log(data);
}

// Assuming you have an ArrayBuffer of Draco data
const dracoArrayBuffer = new ArrayBuffer();
decodeDracoData(dracoArrayBuffer);

Other packages similar to @loaders.gl/draco

three

Three.js is a popular JavaScript library for creating and displaying 3D graphics in the browser. It includes support for loading and decoding Draco compressed geometries through the `THREE.DRACOLoader` class. Compared to @loaders.gl/draco, Three.js offers a more comprehensive suite of tools for 3D rendering and scene management.

draco3d

Draco3D is the official JavaScript implementation of the Draco compression library. It provides low-level APIs for encoding and decoding 3D geometries. While @loaders.gl/draco focuses on ease of use and integration with the loaders.gl framework, draco3d offers more granular control over the compression and decompression processes.

README

@loaders.gl/draco

loaders.gl is a collection of framework-independent 3D and geospatial parsers and encoders.

This module contains loader and writer for Draco compressed meshes and point clouds.

For documentation please visit the website.

Changelog

v4.0.3

• feat(tile-converter): estimation of time remaining (#2774)
• fix: Revert parquet-wasm integration (#2781)
• fix(Arrow): featureIds not correctly parsed from MultiPolygon w/ holes in arrow util (WIP) (#2777)
• fix: Use "latest" version tag when loading from unpkg (#2779)
• docs(arrowjs): Update Arrow docs and release notes (#2778)
• fix(examples): run 'geospatial' locally (#2776)
• chore: Update all dependencies to ^4.0.0 (#2775)
• feat(parquet): Enable Parquet WASM loader (#2773)
• fix(3d-tiles): Enable Tiles3DLoader tests (#2771)
• chore: Dependencies (#2772)
• chore: parseFile accepts ReadableFile (#2770)
• chore(excel): Fix batched loader adapter from atomic parse (#2769)
• chore(loader-utils): split Worker/WorkerWithEncoder types (#2768)