import { InternalTexture } from "../../Materials/Textures/internalTexture";
import type { Nullable } from "../../types";
import type { Scene } from "../../scene";
declare module "../../Engines/abstractEngine" {
    interface AbstractEngine {
        /** @internal */
        createCubeTextureBase(rootUrl: string, scene: Nullable<Scene>, files: Nullable<string[]>, noMipmap: boolean, onLoad: Nullable<(data?: any) => void>, onError: Nullable<(message?: string, exception?: any) => void>, format: number | undefined, forcedExtension: any, createPolynomials: boolean, lodScale: number, lodOffset: number, fallback: Nullable<InternalTexture>, beforeLoadCubeDataCallback: Nullable<(texture: InternalTexture, data: ArrayBufferView | ArrayBufferView[]) => void>, imageHandler: Nullable<(texture: InternalTexture, imgs: HTMLImageElement[] | ImageBitmap[]) => void>, useSRGBBuffer: boolean): InternalTexture;
        /** @internal */
        _partialLoadFile(url: string, index: number, loadedFiles: ArrayBuffer[], onfinish: (files: ArrayBuffer[]) => void, onErrorCallBack: Nullable<(message?: string, exception?: any) => void>): void;
        /** @internal */
        _cascadeLoadFiles(scene: Nullable<Scene>, onfinish: (images: ArrayBuffer[]) => void, files: string[], onError: Nullable<(message?: string, exception?: any) => void>): void;
        /** @internal */
        _cascadeLoadImgs(scene: Nullable<Scene>, texture: InternalTexture, onfinish: Nullable<(texture: InternalTexture, images: HTMLImageElement[] | ImageBitmap[]) => void>, files: string[], onError: Nullable<(message?: string, exception?: any) => void>, mimeType?: string): void;
        /** @internal */
        _partialLoadImg(url: string, index: number, loadedImages: HTMLImageElement[] | ImageBitmap[], scene: Nullable<Scene>, texture: InternalTexture, onfinish: Nullable<(texture: InternalTexture, images: HTMLImageElement[] | ImageBitmap[]) => void>, onErrorCallBack: Nullable<(message?: string, exception?: any) => void>, mimeType?: string): void;
    }
}