import type { Scene } from "three";
import { InstancedMesh, Matrix4 } from "three";
export interface InstancedMeshPoolOptions {
    initialCapacity?: number;
    capacityStep?: number;
}
export declare class InstancedMeshPool {
    private readonly scene;
    private readonly initialCapacity;
    private readonly capacityStep;
    private readonly entries;
    private readonly descriptors;
    private nextHandler;
    constructor(scene: Scene, options?: Partial<InstancedMeshPoolOptions>);
    isValidHandler(handler: number): boolean;
    sortMeshes(baseRenderOrder: number, compare: (a: InstancedMesh, aTag: string, b: InstancedMesh, bTag: string) => number): void;
    sortInstances(compare: (matrixA: Matrix4, matrixB: Matrix4, tag: string) => number): void;
    destroy(): void;
    private getOrCreateEntry;
    private growEntry;
    private sortEntryInstances;
}