import { BufferGeometry, Object3D } from 'three';
import { Object3DWithGeometry } from './Group';
import { ObjectContent, CoreObjectType } from './ObjectContent';
import type { QuadObject } from './modules/quad/QuadObject';
export declare function bufferGeometryMaxGroupEnd(geometry: BufferGeometry): number;
export declare function truncateBufferGeometry(geometry: BufferGeometry, maxCount: number): void;
export declare function object3DHasGeometry(o: Object3D): o is Object3DWithGeometry;
export declare function objectContentHasGeometry(o: ObjectContent<CoreObjectType>): o is Object3DWithGeometry | QuadObject;
export declare function markedAsInstance(geometry: BufferGeometry): boolean;