public FileInfo MtlFile; // The obj .mtl file that we write. Should be RootNode.Name + "_mtl.mtl".
public void GetMtlFileName(CgfData cgfData) // Get FileInfo Mtlfile name from the MtlName chunks and read it. Assume pwd if no objectdir.
{
Datafile = cgfData;
DirectoryInfo currentDir = new DirectoryInfo(Directory.GetCurrentDirectory());
String[] stringSeparators = new string[] { @"\", @"/" }; // to split up the paths
String[] result; // carries the results of the split
//Console.WriteLine("***** In MaterialFile.cs *****");
MtlFile = new FileInfo(Datafile.RootNode.Name + "_mtl.mtl");
// Console.WriteLine("Current dir is {0}", currentDir.FullName);
// Find the number of material chunks. if 1, then name is the mtl file name. If many, find type 0x01.
foreach (CgfData.ChunkMtlName mtlChunk in Datafile.CgfChunks.Where(a => a.chunkType == ChunkType.MtlName))
{
// mtlChunk.WriteChunk();
if (mtlChunk.version == 0x800)
{
// this is a parent material. Should be only one. Don't care about the rest.
if (mtlChunk.MatType == 0x01 || mtlChunk.MatType == 0x10)
{
// parent material. This is the one we want.
//Console.WriteLine("Mat type 0x01 found.");
if (mtlChunk.Name.Contains(@"\") || mtlChunk.Name.Contains(@"/"))
{
// I'm a qualified path, but don't know if objectdir exists. Need to get name+.mtl without the path info.
result = mtlChunk.Name.Split(stringSeparators, StringSplitOptions.None);
MtlFileName = result[result.Length - 1]; // Last element in mtlChunk.Name
//Console.WriteLine("MtlFileName (has slash) is {0}", MtlFileName);
if (Datafile.Args.ObjectDir != null) // Check to see if objectdir was set. if not, just check local dir
{
if (MtlFileName.EndsWith(".mtl"))
{
XmlMtlFile = new FileInfo(Datafile.Args.ObjectDir + @"\" + mtlChunk.Name);
}
else
{
XmlMtlFile = new FileInfo(Datafile.Args.ObjectDir + @"\" + mtlChunk.Name + ".mtl");
}
}
else
{
// No objectdir provided. Only check current directory.
if (MtlFileName.EndsWith(".mtl"))
{
XmlMtlFile = new FileInfo(currentDir + @"\" + MtlFileName);
}
else
{
XmlMtlFile = new FileInfo(currentDir + @"\" + MtlFileName + ".mtl");
}
}
}
else
{
MtlFileName = mtlChunk.Name; // will add .mtl later.
//Console.WriteLine("MtlFileName (no slash) is {0}", MtlFileName);
XmlMtlFile = new FileInfo(currentDir + @"\" + MtlFileName + ".mtl");
}
//Console.WriteLine("MtlFile.Fullname is {0}", XmlMtlFile.FullName);
if (XmlMtlFile.Exists)
{
//Console.WriteLine("*** Found material file {0}.", XmlMtlFile.FullName);
ReadMtlFile(XmlMtlFile);
}
else
{
Console.WriteLine("*** 0x800 Unable to find material file {0}. I'm probably going to not work well.", XmlMtlFile.FullName);
// Set up a dummy material and return.
MtlFormat material = new MtlFormat();
material.MaterialName = Datafile.RootNode.Name; // since there is no Name, use the node name.
material.Diffuse.Red = 1;
material.Diffuse.Green = 0;
material.Diffuse.Blue = 1;
Materials.Add(material);
MaterialNameArray = new MtlFormat[Materials.Count];
MaterialNameArray = Materials.ToArray();
}
} // Not a material type 0x01 or 0x10. Will be a child material. Continue to next mtlname chunk
}
else // version 0x802 file. There will be just one, so return after it is found and read
{
// Process version 0x802 files
//Console.WriteLine("In 0x802 section");
if (mtlChunk.Name.Contains(@"\") || mtlChunk.Name.Contains(@"/"))
{
// I'm a qualified path, but don't know if objectdir exists. Need to get name+.mtl without the path info.
// Several cases here. Sometimes it has the .mtl ending, sometimes it doesn't. GRRR
result = mtlChunk.Name.Split(stringSeparators, StringSplitOptions.None);
MtlFileName = result[result.Length - 1]; // Last element in mtlChunk.Name
//Console.WriteLine("MtlFileName is {0}", MtlFileName);
if (Datafile.Args.ObjectDir != null)
{
if (MtlFileName.EndsWith(".mtl"))
{
XmlMtlFile = new FileInfo(Datafile.Args.ObjectDir + @"\" + mtlChunk.Name);
}
else
{
XmlMtlFile = new FileInfo(Datafile.Args.ObjectDir + @"\" + mtlChunk.Name + ".mtl");
}
}
else
{
// No objectdir provided. Only check current directory.
if (MtlFileName.EndsWith(".mtl"))
{
XmlMtlFile = new FileInfo(currentDir + @"\" + MtlFileName);
}
else
{
XmlMtlFile = new FileInfo(currentDir + @"\" + MtlFileName + ".mtl");
}
}
}
else
{
// It's just a file name. Search only in current directory.
MtlFileName = mtlChunk.Name;
XmlMtlFile = new FileInfo(currentDir + @"\" + MtlFileName + ".mtl");
//Console.WriteLine("MtlFileName (short version) is {0}", MtlFileName);
}
//Console.WriteLine("MtlFile.Fullname is {0}", XmlMtlFile.FullName);
if (XmlMtlFile.Exists)
{
Console.WriteLine("*** 0x802 Found material file {0}.", XmlMtlFile.FullName);
ReadMtlFile(XmlMtlFile);
}
else
{
Console.WriteLine();
Console.WriteLine("*** 0x802 Unable to find material file {0}. I'm probably going to not work well.", XmlMtlFile.FullName);
Console.WriteLine();
// Set up a dummy material and return.
// Console.WriteLine("Unable to find material file {0}. Using group names.", Materialfile.FullName);
MtlFormat material = new MtlFormat();
material.MaterialName = Datafile.RootNode.Name; // since there is no Name, use the node name.
material.Diffuse.Red = 1;
material.Diffuse.Green = 0;
material.Diffuse.Blue = 1;
Materials.Add(material);
MaterialNameArray = new MtlFormat[Materials.Count];
MaterialNameArray = Materials.ToArray();
}
return;
}
}
return;
}
public void ReadMtlFile(FileInfo Materialfile) // reads the mtl file, so we can populate the MaterialNames array and assign those material names to the meshes
{
// MtlFile should be an object to the Material File for the CgfData. We need to populate the MaterialNameArray array with the objects.
// If I was smart I'd actually get Blender to add this to /scripts/addons/io_scene_obj/import_obj.py
// Console.WriteLine("Mtl File name is {0}", Materialfile.FullName);
XElement materialmap = XElement.Load(Materialfile.FullName);
if (materialmap.Attribute("MtlFlags").Value == "524288")
{
// Short mtl file with just one material. No name, so set it to the object name.
//Console.WriteLine("Found material with 524288");
MtlFormat material = new MtlFormat();
//Console.WriteLine("Attribute: {0}", Datafile.RootNode.Name);
material.MaterialName = Datafile.RootNode.Name; // since there is no Name, use the node name.
material.Flags = materialmap.Attribute("MtlFlags").Value;
material.Shader = materialmap.Attribute("Shader").Value;
material.GenMask = materialmap.Attribute("GenMask").Value;
material.StringGenMask = materialmap.Attribute("StringGenMask").Value;
material.SurfaceType = materialmap.Attribute("SurfaceType").Value;
material.MatTemplate = materialmap.Attribute("MatTemplate").Value;
String tmpDiffuse = materialmap.Attribute("Diffuse").Value;
string[] parse = tmpDiffuse.Split(',');
material.Diffuse.Red = float.Parse(parse[0]);
material.Diffuse.Green = float.Parse(parse[1]);
material.Diffuse.Blue = float.Parse(parse[2]);
String tmpSpec = materialmap.Attribute("Specular").Value;
string[] parsespec = tmpSpec.Split(',');
material.Specular.Red = float.Parse(parsespec[0]);
material.Specular.Blue = float.Parse(parsespec[1]);
material.Specular.Green = float.Parse(parsespec[2]);
String tmpEmissive = materialmap.Attribute("Emissive").Value;
string[] parseemissive = tmpEmissive.Split(',');
material.Emissive.Red = float.Parse(parseemissive[0]);
material.Emissive.Blue = float.Parse(parseemissive[1]);
material.Emissive.Green = float.Parse(parseemissive[2]);
material.Shininess = float.Parse(materialmap.Attribute("Shininess").Value);
material.Opacity = float.Parse(materialmap.Attribute("Opacity").Value);
// now loop for all the textures
int i = 0;
foreach (XElement tex in materialmap.Descendants("Texture"))
{
Texture temptex = new Texture();
temptex.Map = tex.Attribute("Map").Value;
temptex.File = tex.Attribute("File").Value;
material.Textures.Add(temptex);
//Console.WriteLine("Texture File found: {0}", material.Textures[i].File);
i++;
}
Materials.Add(material);
}
else // more complicated material file, with Submaterials attribute
{
foreach (XElement mat in materialmap.Descendants("SubMaterials"))
{
//var matElement = mat.Element("Material");
//Console.WriteLine("SubMat {0}", mat);
foreach (XElement submat in mat.Descendants("Material"))
{
MtlFormat material = new MtlFormat();
//Console.WriteLine("Attribute: {0}", submat.Attribute("Name"));
material.MaterialName = submat.Attribute("Name").Value;
material.Flags = submat.Attribute("MtlFlags").Value;
material.Shader = submat.Attribute("Shader").Value;
material.GenMask = submat.Attribute("GenMask").Value;
material.StringGenMask = submat.Attribute("StringGenMask").Value;
material.SurfaceType = submat.Attribute("SurfaceType").Value;
material.MatTemplate = submat.Attribute("MatTemplate").Value;
String tmpDiffuse = submat.Attribute("Diffuse").Value;
string[] parse = tmpDiffuse.Split(',');
material.Diffuse.Red = float.Parse(parse[0]);
material.Diffuse.Green = float.Parse(parse[1]);
material.Diffuse.Blue = float.Parse(parse[2]);
String tmpSpec = submat.Attribute("Specular").Value;
string[] parsespec = tmpSpec.Split(',');
material.Specular.Red = float.Parse(parsespec[0]);
material.Specular.Blue = float.Parse(parsespec[1]);
material.Specular.Green = float.Parse(parsespec[2]);
String tmpEmissive = submat.Attribute("Emissive").Value;
string[] parseemissive = tmpEmissive.Split(',');
material.Emissive.Red = float.Parse(parseemissive[0]);
material.Emissive.Blue = float.Parse(parseemissive[1]);
material.Emissive.Green = float.Parse(parseemissive[2]);
if (submat.Attribute("Shininess") != null) // default set to 255.
{
material.Shininess = float.Parse(submat.Attribute("Shininess").Value);
}
//Console.WriteLine("Submat: {0}", submat.Attribute("Opacity"));
if (submat.Attribute("Opacity") != null) // Default is set to 1, but if it exists grab the value.
{
material.Opacity = float.Parse(submat.Attribute("Opacity").Value);
}
// now loop for all the textures
int i = 0;
foreach (XElement tex in submat.Descendants("Texture"))
{
Texture temptex = new Texture();
temptex.Map = tex.Attribute("Map").Value;
temptex.File = tex.Attribute("File").Value;
material.Textures.Add(temptex);
//Console.WriteLine("Texture File found: {0}", material.Textures[i].File);
i++;
}
Materials.Add(material);
}
}
}
int length = Materials.Count;
//Console.WriteLine("{0} Materials found in the material file.", length);
//foreach (MtlFormat mats in Materials)
//{
// Console.WriteLine("Material name is {0}", mats.MaterialName);
//}
MaterialNameArray = new MtlFormat[Materials.Count];
MaterialNameArray = Materials.ToArray();
}