📄 threejs/Addons/Loaders/LWOLoader

File: LWOLoader.md | Updated: 11/15/2025


title: LWOLoader category: Addons layout: docs

LWOLoader

A loader for the LWO format.

LWO3 and LWO2 formats are supported.

References:

Code Example

const loader = new LWOLoader();
const lwoData = await loader.loadAsync( 'models/lwo/Objects/LWO3/Demo.lwo' );
const mesh = object.meshes[ 0 ];
scene.add( mesh );

Import

LWOLoader is an addon, and must be imported explicitly, see Installation#Addons.

import { LWOLoader } from 'three/addons/loaders/LWOLoader.js';

Constructor

new LWOLoader( manager : LoadingManager )

Constructs a new LWO loader.

manager | The loading manager.
---|---

Methods

.load( url : string, onLoad : function, onProgress : onProgressCallback, onError : onErrorCallback )

Starts loading from the given URL and passes the loaded LWO asset to the onLoad() callback.

url | The path/URL of the file to be loaded. This can also be a data URI.
---|---
onLoad | Executed when the loading process has been finished.
onProgress | Executed while the loading is in progress.
onError | Executed when errors occur.

Overrides: Loader#load

.parse( iffBuffer : ArrayBuffer, path : string, modelName : string ) : Object

Parses the given LWO data and returns the resulting meshes and materials.

iffBuffer | The raw LWO data as an array buffer.
---|---
path | The URL base path.
modelName | The model name.

Overrides: Loader#parse

Returns: An object holding the parse meshes and materials.

Source

examples/jsm/loaders/LWOLoader.js