import { IGLTF_v1 } from "@shapediver/viewer.data-engine.shared-types";
import { ITreeNode } from "@shapediver/viewer.shared.node-tree";
export declare class GLTFLoader {
    private readonly BINARY_EXTENSION_HEADER_LENGTH;
    private readonly _httpClient;
    private readonly _uuidGenerator;
    private readonly _logger;
    private readonly _implementedExtensions;
    private readonly _globalTransformation;
    private readonly _eventEngine;
    private readonly _performanceEvaluator;
    private readonly _progressUpdateLimit;
    private _baseUri;
    private _body;
    private _content;
    private _eventId;
    private _numberOfNodes;
    private _numberOfConvertedNodes;
    private _progressTimer;
    load(content: IGLTF_v1, gltfBinary?: ArrayBuffer, gltfHeader?: {
        magic: string;
        version: number;
        length: number;
        contentLength: number;
        contentFormat: number;
    }, baseUri?: string, taskEventId?: string): Promise<ITreeNode>;
    loadWithUrl(url?: string | undefined): Promise<ITreeNode>;
    private validateVersionAndExtensions;
    private loadAccessor;
    private loadBuffer;
    private loadBufferView;
    private loadMaterial;
    private loadMesh;
    private loadNode;
    private loadScene;
}
//# sourceMappingURL=GLTFLoader.d.ts.map