protected void ParseDataObjectMeshMaterialList(ref Mesh mesh)
{
ReadHeadOfDataObject();
// read material count
/*unsigned int numMaterials =*/
ReadInt();
// read non triangulated face material index count
uint numMatIndices = ReadInt();
// some models have a material index count of 1... to be able to read them we
// replicate this single material index on every face
if (numMatIndices != mesh.PosFaces.Count && numMatIndices != 1)
ThrowException("Per-Face material index count does not match face count.");
// read per-face material indices
for (uint a = 0; a < numMatIndices; a++)
mesh.FaceMaterials.Add(ReadInt());
// in version 03.02, the face indices end with two semicolons.
// commented out version check, as version 03.03 exported from blender also has 2 semicolons
if (!isBinaryFormat) // && MajorVersion == 3 && MinorVersion <= 2)
{
if (p < end && buffer[p] == ';')
++p;
}
// if there was only a single material index, replicate it on all faces
while (mesh.FaceMaterials.Count < mesh.PosFaces.Count)
mesh.FaceMaterials.Add(mesh.FaceMaterials[0]);
// read following data objects
bool running = true;
while (running)
{
string objectName = GetNextToken();
if (objectName.Length == 0)
ThrowException("Unexpected end of file while parsing mesh material list.");
else if (objectName == "}")
break; // material list finished
else if (objectName == "{")
{
// template materials
string matName = GetNextToken();
Material material = new Material();
material.IsReference = true;
material.Name = matName;
mesh.Materials.Add(material);
CheckForClosingBrace(); // skip }
}
else if (objectName == "Material")
{
Material material;
ParseDataObjectMaterial(out material);
mesh.Materials.Add(material);
}
else if (objectName == ";")
{
// ignore
}
else
{
Debug.WriteLine("Unknown data object in material list in x file");
ParseUnknownDataObject();
}
}
}
protected void ParseDataObjectMaterial(out Material material)
{
string matName;
ReadHeadOfDataObject(out matName);
if (matName.Length == 0)
{
matName = "material" + lineNumber;
}
material = new Material();
material.Name = matName;
material.IsReference = false;
// read material values
material.Diffuse = ReadRGBA();
material.SpecularExponent = ReadFloat();
material.Specular = ReadRGB();
material.Emissive = ReadRGB();
// read other data objects
bool running = true;
material.Textures = new List<TexEntry>();
while (running)
{
string objectName = GetNextToken();
if (objectName.Length == 0)
ThrowException("Unexpected end of file while parsing mesh material");
else if (objectName == "}")
{
break; // material finished
}
else if (objectName == "TextureFilename" || objectName == "TextureFileName")
{
// some exporters write "TextureFileName" instead.
string texname = string.Empty;
ParseDataObjectTextureFilename(ref texname);
material.Textures.Add(new TexEntry(texname));
}
else if (objectName == "NormalmapFilename" || objectName == "NormalmapFileName")
{
// one exporter writes out the normal map in a separate filename tag
string texname = string.Empty;
ParseDataObjectTextureFilename(ref texname);
material.Textures.Add(new TexEntry(texname, true));
}
else
{
Debug.WriteLine("Unknown data object in material in x file");
ParseUnknownDataObject();
}
}
}
