import { default as Viewport } from '..';
import { GenerateMeshBVHWorker } from './GenerateMeshBVHWorker';
export type ModelsBoundsTreeOptions = {
    type?: 'block' | 'slice' | 'worker';
    force?: boolean;
    frameSliceCount?: number;
    workerCreator?: () => Worker;
};
declare class Bvh {
    readonly viewport: Viewport;
    cameraChanging: boolean;
    timer: number | null;
    computedGeometriesUuid: Map<string, string>;
    inFlightGeometryBuilds: Map<string, Promise<void>>;
    frameHandles: Set<number>;
    sliceRejectors: Set<(reason: Error) => void>;
    disposed: boolean;
    generateMeshBVHWorker: GenerateMeshBVHWorker;
    constructor(viewport: Viewport);
    private _createAbortError;
    private _requestFrame;
    computeModelsBoundsTree(options?: ModelsBoundsTreeOptions): Promise<void>;
    dispose(): void;
}
export default Bvh;