📄 threejs/Addons/Loaders/NRRDLoader

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


title: NRRDLoader category: Addons layout: docs

NRRDLoader

A loader for the NRRD format.

Code Example

const loader = new NRRDLoader();
const volume = await loader.loadAsync( 'models/nrrd/I.nrrd' );

Import

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

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

Constructor

new NRRDLoader( manager : LoadingManager )

Constructs a new NRRD loader.

manager | The loading manager.
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Methods

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

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

url | The path/URL of the file to be loaded. This can also be a data URI.
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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( data : ArrayBuffer ) : Volume

Parses the given NRRD data and returns the resulting volume data.

data | The raw NRRD data as an array buffer.
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Overrides: Loader#parse

Returns: The parsed volume.

.setSegmentation( segmentation : boolean )

Toggles the segmentation mode.

segmentation | Whether to use segmentation mode or not.
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Source

examples/jsm/loaders/NRRDLoader.js