import { BaseNodeType } from '../../../engine/nodes/_Base';
import { BaseCoreImageLoader, BaseImageLoader, TextureLoadOptions } from './_BaseImageLoader';
import { KTX2Loader } from 'three/examples/jsm/loaders/KTX2Loader';
import { BaseLoaderLoadOptions } from '../_Base';
export declare class KTX2TextureLoader extends BaseCoreImageLoader {
    static PARAM_ENV_DEFAULT: string;
    private static _loadStarted;
    private static _resolves;
    constructor(_url: string, _node: BaseNodeType);
    protected _getLoader(options: TextureLoadOptions): Promise<BaseImageLoader>;
    private static _loader;
    static getLoader(options: BaseLoaderLoadOptions): Promise<KTX2Loader>;
    private static _createLoaderOrQueue;
    private static __createLoader;
}