three.js/src/textures/CompressedArrayTexture.js

import { ClampToEdgeWrapping } from '../constants.js';
import { CompressedTexture } from './CompressedTexture.js';

class CompressedArrayTexture extends CompressedTexture {

	constructor( mipmaps, width, height, depth, format, type ) {

		super( mipmaps, width, height, format, type );

		this.isCompressedArrayTexture = true;
		this.image.depth = depth;
		this.wrapR = ClampToEdgeWrapping;

		this.layerUpdates = new Set();

	}

	addLayerUpdates( layerIndex ) {

		this.layerUpdates.add( layerIndex );

	}

	clearLayerUpdates() {

		this.layerUpdates.clear();

	}

}

export { CompressedArrayTexture };