import { type BufferGeometry, type Object3D } from 'three/webgpu';
import { type GeometryBVH } from 'three-mesh-bvh';
export declare function getGeometryBoundsTree(geometry: BufferGeometry): GeometryBVH | null;
/**
 * Installs lazy, per-mesh BVH raycasting without mutating Three.js prototypes.
 * BVHs are shared by geometry and are built only after the ray hits a mesh's
 * world-space bounding sphere.
 */
export declare function enableMeshBVHRaycast(root: Object3D): Object3D<import("three").Object3DEventMap>;