Esempio n. 1
0
        /// <summary>
        /// Create the obj and mtl files with the given data
        /// </summary>
        /// <param name="objData">Data parsed from the obj file</param>
        /// <param name="mtlData">Data parsed from the mtl file</param>
        /// <param name="objFilename">Output path</param>
        /// <param name="makeMtl">Create a mtl file</param>
        /// <param name="useExistingMtl">Use the mtlData to create the mtl file</param>
        /// <returns></returns>
        public static bool WriteObj(ObjData objData, MtlData mtlData, string objFilename, bool makeMtl, bool useExistingMtl)
        {
            // objFilename has the .obj extension
            string directory   = System.IO.Path.GetDirectoryName(objFilename);
            string noExtension = System.IO.Path.GetFileNameWithoutExtension(objFilename);
            string mtlRelative = string.Format("{0}.mtl", noExtension);
            string mtlFilename = System.IO.Path.Combine(directory, mtlRelative);

            List <string> mtlLines = new List <string>(); // To store the lines to append to the mtl file

            try
            {
                using (StreamWriter obj = new StreamWriter(objFilename))
                {
                    // mtllib, o, v, vt, g, usemtl, s, f

                    obj.WriteLine(GenericUtils.GetCreditsFile());
                    if (makeMtl)
                    {
                        obj.WriteLine(ObjUtils.GetNewMtlLib(mtlRelative));
                    }

                    LocalIndexesObj indexesObj = new LocalIndexesObj();

                    foreach (ObjectObj objectObj in objData.ObjectsList)
                    {
                        if (objectObj.ObjectName != null)
                        {
                            obj.WriteLine(ObjUtils.GetNewObject(objectObj.ObjectName)); // o
                        }
                        foreach (Point p in objectObj.VerticesList)
                        {
                            obj.WriteLine(ObjUtils.GetNewCoord(p.ToString())); // v
                        }
                        foreach (UVCoordinates uv in objectObj.UVsList)
                        {
                            obj.WriteLine(ObjUtils.GetNewTexCoord(uv.ToString())); // vt
                        }
                        foreach (Vector v in objectObj.NormalsList)
                        {
                            obj.WriteLine(ObjUtils.GetNewVertNormal(v.ToString())); // vn
                        }
                        if (objectObj.GroupName != null)
                        {
                            obj.WriteLine(ObjUtils.GetNewGroup(objectObj.GroupName)); // g
                        }
                        if (objectObj.MaterialName != null)
                        {
                            obj.WriteLine(ObjUtils.GetNewUseMtl(objectObj.MaterialName)); // usemtl
                            // Store lines in the mtl array to append to the file later
                            mtlLines.Add(MtlUtils.GetMtlData(objectObj.MaterialName, objectObj.TextureName));
                        }

                        if (objectObj.Smooth == -1)
                        {
                            obj.WriteLine(ObjUtils.GetNewSmoothGroup()); // s
                        }
                        else
                        {
                            obj.WriteLine(ObjUtils.GetNewSmoothGroup(objectObj.Smooth)); // s
                        }
                        foreach (VertIndexesObj vertIndexes in objectObj.VertIndexesList)
                        {
                            obj.WriteLine(ObjUtils.GetNewF(GetDataF(vertIndexes, indexesObj))); // f
                        }
                        indexesObj.vIndex  += objectObj.VerticesList.Count;
                        indexesObj.vtIndex += objectObj.UVsList.Count;
                        indexesObj.vnIndex += objectObj.NormalsList.Count;
                    }
                }
            }
            catch
            {
                return(false);
            }

            if (makeMtl)                               // If we dont delete materials
            {
                if (useExistingMtl && mtlData != null) // Use the parsed mtl
                {
                    return(MtlExporter.WriteMtl(mtlData, mtlFilename));
                }
                else // Create a mtl from the data obtained in the obj
                {
                    return(MtlExporter.WriteMtl(mtlLines, mtlFilename));
                }
            }

            return(true);
        }
Esempio n. 2
0
        /// <summary>
        /// Create the obj and mtl files with the given data
        /// </summary>
        /// <param name="wrlData">Data parsed from the wrl file</param>
        /// <param name="objFilename">Output file</param>
        /// <returns></returns>
        public static bool WriteObj(WrlData wrlData, string objFilename)
        {
            // objFilename has the .obj extension
            string directory   = System.IO.Path.GetDirectoryName(objFilename);
            string noExtension = System.IO.Path.GetFileNameWithoutExtension(objFilename);
            string mtlRelative = $"{noExtension}.mtl";
            string mtlFilename = System.IO.Path.Combine(directory, mtlRelative);

            List <string> mtlLines = new List <string>(); // To store the lines to append to the mtl file

            try
            {
                using (StreamWriter obj = new StreamWriter(objFilename))
                {
                    // mtllib, o, v, vt, g, usemtl, s, f

                    obj.WriteLine(GenericUtils.GetCreditsFile());
                    obj.WriteLine(ObjUtils.GetNewMtlLib(mtlRelative));

                    int i_coordIndex    = 0;
                    int i_texCoordIndex = 0;

                    int index = 0;

                    foreach (Transform transform in wrlData.TransformsList)
                    {
                        foreach (Shape shape in transform.ShapesList)
                        {
                            string groupName    = "";
                            string urlTexture   = null;
                            string diffuseColor = null;

                            if (shape.Appearance != null)
                            {
                                if (shape.Appearance.Material != null)
                                {
                                    if (shape.Appearance.Material.DiffuseColor != null)
                                    {
                                        diffuseColor = shape.Appearance.Material.DiffuseColor.ToString();
                                    }
                                }

                                if (shape.Appearance.Texture != null)
                                {
                                    urlTexture = shape.Appearance.Texture.Url;
                                    if (urlTexture != null)
                                    {
                                        groupName = ObjUtils.GetGroupName(index, urlTexture);
                                    }
                                    else
                                    {
                                        groupName = ObjUtils.GetGroupName(index);
                                    }
                                }
                                else
                                {
                                    groupName = ObjUtils.GetGroupName(index);
                                }
                            }

                            mtlLines.Add(MtlUtils.GetMtlData(groupName, urlTexture, diffuseColor));

                            obj.WriteLine(ObjUtils.GetNewObject(groupName)); // o


                            int sizeCoord = 0; int sizeTexCoord = 0;

                            if (shape.Geometry != null)
                            {
                                if (shape.Geometry.Coord != null)
                                {
                                    sizeCoord = shape.Geometry.Coord.PointsList.Count;
                                    foreach (Point point in shape.Geometry.Coord.PointsList)
                                    {
                                        obj.WriteLine(ObjUtils.GetNewCoord(point.ToString())); // v
                                    }
                                }

                                if (shape.Geometry.TexCoord != null)
                                {
                                    sizeTexCoord = shape.Geometry.TexCoord.UVList.Count;
                                    foreach (UVCoordinates uv in shape.Geometry.TexCoord.UVList)
                                    {
                                        obj.WriteLine(ObjUtils.GetNewTexCoord(uv.ToString())); // vt
                                    }
                                }
                            }

                            obj.WriteLine(ObjUtils.GetNewGroup(groupName));  // g
                            obj.WriteLine(ObjUtils.GetNewUseMtl(groupName)); // usemtl
                            obj.WriteLine(ObjUtils.GetNewSmoothGroup());     // s

                            if (shape.Geometry != null)
                            {
                                CoordIndexesWrl coordIndexes    = shape.Geometry.CoordIndexes;
                                CoordIndexesWrl texCoordIndexes = shape.Geometry.TexCoordIndexes;

                                if (coordIndexes != null)
                                {
                                    List <CoordIndexWrl> coordIndexesList = coordIndexes.IndexesList;
                                    if (texCoordIndexes != null)
                                    {
                                        List <CoordIndexWrl> texCoordIndexesList = texCoordIndexes.IndexesList;
                                        for (int i = 0; i < coordIndexesList.Count; i++)
                                        {
                                            string strIndexesF = GetIndexesF(coordIndexesList[i], texCoordIndexesList[i], i_coordIndex, i_texCoordIndex);
                                            obj.WriteLine(ObjUtils.GetNewF(strIndexesF)); // f
                                        }
                                    }
                                    else
                                    {
                                        foreach (CoordIndexWrl coordIndex in coordIndexesList)
                                        {
                                            string strIndexesF = GetIndexesF(coordIndex, i_coordIndex);
                                            obj.WriteLine(ObjUtils.GetNewF(strIndexesF)); // f
                                        }
                                    }
                                }
                            }
                            i_coordIndex    += sizeCoord;
                            i_texCoordIndex += sizeTexCoord;
                            index++;
                        }
                    }
                }
            }
            catch
            {
                return(false);
            }
            return(MtlExporter.WriteMtl(mtlLines, mtlFilename)); // Create the mtl file
        }