import MeshSimplifier from "../MeshSimplifier";
import Adapter from "../../Adapters/Adapter";
import Geometry from "../../Geometries/Geometry";
declare class FastQuadric implements MeshSimplifier {
    targetPercentage: number;
    aggressiveness: number;
    private _triangles;
    private _vertices;
    private _refs;
    private _timer;
    get timeConsumed(): number;
    constructor({ targetPercentage, aggressiveness }?: {
        targetPercentage?: number;
        aggressiveness?: number;
    });
    simplify(target: Adapter | Geometry): this;
    private _process;
    private _getData;
    private _setData;
    private _flipped;
    private _updateTriangles;
    private _updateMesh;
    private _calculateError;
    private _vertexError;
    private _compactMesh;
}
export default FastQuadric;