import { Entity, System } from '@lastolivegames/becsy';
export declare class ViewportCulling extends System {
    #private;
    bounds: import("@lastolivegames/becsy").Query;
    cameras: import("@lastolivegames/becsy").Query;
    visibilities: import("@lastolivegames/becsy").Query;
    constructor();
    /**
     * Since the entity is deleted, we need to remove it from the RBush.
     */
    remove(entity: Entity): void;
    execute(): void;
    private getOrCreateViewport;
}