import { type MeshCardLayout, type VertexLayoutProjection } from '@forgeax/engine-geometry';
import { type Result, type VertexAttributeMap } from '@forgeax/engine-types';
import { MeshBinAssetError } from '../errors/asset';
export interface UnpackedMeshBin {
    readonly version: 4 | 5;
    readonly projection: VertexLayoutProjection;
    readonly vertices: Float32Array;
    readonly attributes: VertexAttributeMap;
    readonly indices?: Uint16Array | Uint32Array;
    readonly submeshes: ReadonlyArray<Record<string, unknown>>;
    readonly cardLayout?: MeshCardLayout;
    readonly materialSlots: readonly {
        readonly slotName: string;
        readonly sourceKey?: string;
        readonly defaultMaterialRef?: number;
    }[];
    readonly aabb?: Float32Array;
    readonly morphTargets?: ReadonlyArray<Record<string, Float32Array>>;
    readonly morphWeights?: Float32Array;
    /** Lower-detail mesh references encoded as indexes into the enclosing pack refs table. */
    readonly lods?: readonly {
        readonly meshRef: number;
        readonly screenCoverage: number;
    }[];
    readonly lodHysteresis?: number;
}
export declare function unpackMeshBin(bytes: Uint8Array, sourceKey: string): Result<UnpackedMeshBin, MeshBinAssetError>;
//# sourceMappingURL=mesh-bin.d.ts.map