import type { AssetContainer } from "@babylonjs/core/assetContainer.js";
import { Mesh } from "@babylonjs/core/Meshes/mesh.js";
import type { Scene } from "@babylonjs/core/scene.js";
import type { Nullable } from "@babylonjs/core/types.js";
import type { OBJLoadingOptions } from "./objLoadingOptions";
/**
 * Class used to load mesh data from OBJ content
 */
export declare class SolidParser {
    /** Object descriptor */
    static ObjectDescriptor: RegExp;
    /** Group descriptor */
    static GroupDescriptor: RegExp;
    /** Material lib descriptor */
    static MtlLibGroupDescriptor: RegExp;
    /** Use a material descriptor */
    static UseMtlDescriptor: RegExp;
    /** Smooth descriptor */
    static SmoothDescriptor: RegExp;
    /** Pattern used to detect a vertex */
    static VertexPattern: RegExp;
    /** Pattern used to detect a normal */
    static NormalPattern: RegExp;
    /** Pattern used to detect a UV set */
    static UVPattern: RegExp;
    /** Pattern used to detect a first kind of face (f vertex vertex vertex) */
    static FacePattern1: RegExp;
    /** Pattern used to detect a second kind of face (f vertex/uvs vertex/uvs vertex/uvs) */
    static FacePattern2: RegExp;
    /** Pattern used to detect a third kind of face (f vertex/uvs/normal vertex/uvs/normal vertex/uvs/normal) */
    static FacePattern3: RegExp;
    /** Pattern used to detect a fourth kind of face (f vertex//normal vertex//normal vertex//normal)*/
    static FacePattern4: RegExp;
    /** Pattern used to detect a fifth kind of face (f -vertex/-uvs/-normal -vertex/-uvs/-normal -vertex/-uvs/-normal) */
    static FacePattern5: RegExp;
    /** Pattern used to detect a line(l vertex vertex) */
    static LinePattern1: RegExp;
    /** Pattern used to detect a second kind of line (l vertex/uvs vertex/uvs) */
    static LinePattern2: RegExp;
    /** Pattern used to detect a third kind of line (l vertex/uvs/normal vertex/uvs/normal) */
    static LinePattern3: RegExp;
    private _loadingOptions;
    private _positions;
    private _normals;
    private _uvs;
    private _colors;
    private _meshesFromObj;
    private _handledMesh;
    private _indicesForBabylon;
    private _wrappedPositionForBabylon;
    private _wrappedUvsForBabylon;
    private _wrappedColorsForBabylon;
    private _wrappedNormalsForBabylon;
    private _tuplePosNorm;
    private _curPositionInIndices;
    private _hasMeshes;
    private _unwrappedPositionsForBabylon;
    private _unwrappedColorsForBabylon;
    private _unwrappedNormalsForBabylon;
    private _unwrappedUVForBabylon;
    private _triangles;
    private _materialNameFromObj;
    private _objMeshName;
    private _increment;
    private _isFirstMaterial;
    private _grayColor;
    private _materialToUse;
    private _babylonMeshesArray;
    private _pushTriangle;
    private _handednessSign;
    /**
     * Creates a new SolidParser
     * @param materialToUse defines the array to fill with the list of materials to use (it will be filled by the parse function)
     * @param babylonMeshesArray defines the array to fill with the list of loaded meshes (it will be filled by the parse function)
     * @param loadingOptions defines the loading options to use
     */
    constructor(materialToUse: string[], babylonMeshesArray: Array<Mesh>, loadingOptions: OBJLoadingOptions);
    /**
     * Search for obj in the given array.
     * This function is called to check if a couple of data already exists in an array.
     *
     * If found, returns the index of the founded tuple index. Returns -1 if not found
     * @param arr Array<{ normals: Array<number>, idx: Array<number> }>
     * @param obj Array<number>
     * @returns {boolean}
     */
    private _isInArray;
    private _isInArrayUV;
    /**
     * This function set the data for each triangle.
     * Data are position, normals and uvs
     * If a tuple of (position, normal) is not set, add the data into the corresponding array
     * If the tuple already exist, add only their indice
     *
     * @param indicePositionFromObj Integer The index in positions array
     * @param indiceUvsFromObj Integer The index in uvs array
     * @param indiceNormalFromObj Integer The index in normals array
     * @param positionVectorFromOBJ Vector3 The value of position at index objIndice
     * @param textureVectorFromOBJ Vector3 The value of uvs
     * @param normalsVectorFromOBJ Vector3 The value of normals at index objNormale
     * @param positionColorsFromOBJ
     */
    private _setData;
    /**
     * Transform Vector() and BABYLON.Color() objects into numbers in an array
     */
    private _unwrapData;
    /**
     * Create triangles from polygons
     * It is important to notice that a triangle is a polygon
     * We get 5 patterns of face defined in OBJ File :
     * facePattern1 = ["1","2","3","4","5","6"]
     * facePattern2 = ["1/1","2/2","3/3","4/4","5/5","6/6"]
     * facePattern3 = ["1/1/1","2/2/2","3/3/3","4/4/4","5/5/5","6/6/6"]
     * facePattern4 = ["1//1","2//2","3//3","4//4","5//5","6//6"]
     * facePattern5 = ["-1/-1/-1","-2/-2/-2","-3/-3/-3","-4/-4/-4","-5/-5/-5","-6/-6/-6"]
     * Each pattern is divided by the same method
     * @param faces Array[String] The indices of elements
     * @param v Integer The variable to increment
     */
    private _getTriangles;
    /**
     * Create triangles and push the data for each polygon for the pattern 1
     * In this pattern we get vertice positions
     * @param face
     * @param v
     */
    private _setDataForCurrentFaceWithPattern1;
    /**
     * Create triangles and push the data for each polygon for the pattern 2
     * In this pattern we get vertice positions and uvs
     * @param face
     * @param v
     */
    private _setDataForCurrentFaceWithPattern2;
    /**
     * Create triangles and push the data for each polygon for the pattern 3
     * In this pattern we get vertice positions, uvs and normals
     * @param face
     * @param v
     */
    private _setDataForCurrentFaceWithPattern3;
    /**
     * Create triangles and push the data for each polygon for the pattern 4
     * In this pattern we get vertice positions and normals
     * @param face
     * @param v
     */
    private _setDataForCurrentFaceWithPattern4;
    private _setDataForCurrentFaceWithPattern5;
    private _addPreviousObjMesh;
    private _optimizeNormals;
    /**
     * Function used to parse an OBJ string
     * @param meshesNames defines the list of meshes to load (all if not defined)
     * @param data defines the OBJ string
     * @param scene defines the hosting scene
     * @param assetContainer defines the asset container to load data in
     * @param onFileToLoadFound defines a callback that will be called if a MTL file is found
     */
    parse(meshesNames: any, data: string, scene: Scene, assetContainer: Nullable<AssetContainer>, onFileToLoadFound: (fileToLoad: string) => void): void;
}