import { Document, type Node } from '@gltf-transform/core';
export interface SyntheticRig {
    document: Document;
    nodes: Record<string, Node>;
}
/**
 * Minimal skinned rig exercising the strip cases:
 *   root > pelvis > spine_01 > clavicle_l > upperarm_l > upperarm_corr_l (leaf corrective, REMOVED)
 *   pelvis > thigh_corr_l (REMOVED, mid-chain with offset) > thigh_l (kept child — reparent+bake case)
 * One quad (4 verts, 2 tris) skinned with weights on both removed bones.
 */
export declare function buildSyntheticRig(): SyntheticRig;
/**
 * Meshy-pathology plane (2*n*n tris): every triangle carries its own 3 vertices (positions duplicated
 * across faces, up to 6 copies each) and its own UV micro-chart — meshopt seam-locks every vertex, so
 * attribute-preserving simplify barely moves. weldedSimplify must see through it.
 */
export declare function buildShreddedPlane(n?: number): Document;
/** Dense grid plane (2*n*n tris) for simplify tests. */
export declare function buildDensePlane(n?: number): Document;