import { Model3d, type THREE, type Viewer3d } from "@x-viewer/core";
import type { SceneNodeSnapshot } from "./SceneNodeSnapshot";
export declare function isSceneModelRoot(object: THREE.Object3D): boolean;
/** Finds the {@link Model3d} that owns {@link object} in the scene graph. */
export declare function findModel3dOwning(viewer: Viewer3d, object: THREE.Object3D): Model3d | undefined;
/** @deprecated Use {@link findModel3dOwning}. */
export declare function findModel3dForSceneRoot(viewer: Viewer3d, object: THREE.Object3D): Model3d | undefined;
/** Whether deleting {@link object} should remove the entire loaded model (tree root / model wrapper). */
export declare function isWholeModelDeleteTarget(object: THREE.Object3D, model: Model3d): boolean;
/** Builds a snapshot for undoing removal of a non-model-root node. */
export declare function createSceneNodeSnapshot(object: THREE.Object3D): SceneNodeSnapshot | undefined;