import { Float32BufferAttribute } from 'three';
declare function computeMikkTSpaceTangents(geometry: any, MikkTSpace: any, negateSign?: boolean): any;
declare function mergeGeometries(geometries: any, useGroups?: boolean): any;
declare function mergeAttributes(attributes: any): any;
export declare function deepCloneAttribute(attribute: any): any;
declare function interleaveAttributes(attributes: any): any[];
export declare function deinterleaveAttribute(attribute: any): any;
export declare function deinterleaveGeometry(geometry: any): void;
declare function estimateBytesUsed(geometry: any): number;
declare function mergeVertices(geometry: any, tolerance?: number): any;
declare function toTrianglesDrawMode(geometry: any, drawMode: any): any;
declare function computeMorphedAttributes(object: any): {
    positionAttribute: any;
    normalAttribute: any;
    morphedPositionAttribute: Float32BufferAttribute;
    morphedNormalAttribute: Float32BufferAttribute;
};
declare function mergeGroups(geometry: any): any;
declare function toCreasedNormals(geometry: any, creaseAngle?: number): any;
declare function mergeBufferGeometries(geometries: any, useGroups?: boolean): any;
declare function mergeBufferAttributes(attributes: any): any;
export { computeMikkTSpaceTangents, mergeGeometries, mergeBufferGeometries, mergeAttributes, mergeBufferAttributes, interleaveAttributes, estimateBytesUsed, mergeVertices, toTrianglesDrawMode, computeMorphedAttributes, mergeGroups, toCreasedNormals };