protected internal MTLParser(string fileName)
{
mMtrls = new Dictionary<string, ObjMaterial>();
mCurrentMtrl = default(ObjMaterial);
ParseFile(ParseMtrlToken, fileName);
if (mCurrentMtrlName != null)
{
mMtrls.Add(mCurrentMtrlName, mCurrentMtrl);
}
mCurrentMtrlName = null;
}
protected void ParseMtrlToken(string line, string[] tokens)
{
string token = tokens[0].ToLower();
try
{
if (string.IsNullOrWhiteSpace(line.Substring(token.Length)))
return;
switch (token)
{
case "newmtl":
{
if (mCurrentMtrlName != null)
{
mMtrls.Add(mCurrentMtrlName, mCurrentMtrl);
}
mCurrentMtrlName = tokens[1];
mCurrentMtrl = new ObjMaterial();
break;
}
case "ns":
{
mCurrentMtrl.Ns = float.Parse(tokens[1], CultureInfo.InvariantCulture);
break;
}
case "ni":
{
mCurrentMtrl.Ni = float.Parse(tokens[1], CultureInfo.InvariantCulture);
break;
}
case "d":
{
mCurrentMtrl.d = float.Parse(tokens[1], CultureInfo.InvariantCulture);
break;
}
case "tr":
{
mCurrentMtrl.Tr = float.Parse(tokens[1], CultureInfo.InvariantCulture);
break;
}
case "illum":
{
mCurrentMtrl.illum = float.Parse(tokens[1], CultureInfo.InvariantCulture);
break;
}
case "tf":
{
float x = float.Parse(tokens[1], CultureInfo.InvariantCulture);
float y = float.Parse(tokens[2], CultureInfo.InvariantCulture);
float z = float.Parse(tokens[3], CultureInfo.InvariantCulture);
mCurrentMtrl.Tf = new Vector(x, y, z);
break;
}
case "ka":
{
float x = float.Parse(tokens[1], CultureInfo.InvariantCulture);
float y = float.Parse(tokens[2], CultureInfo.InvariantCulture);
float z = float.Parse(tokens[3], CultureInfo.InvariantCulture);
mCurrentMtrl.Ka = new Vector(x, y, z);
break;
}
case "kd":
{
float x = float.Parse(tokens[1], CultureInfo.InvariantCulture);
float y = float.Parse(tokens[2], CultureInfo.InvariantCulture);
float z = float.Parse(tokens[3], CultureInfo.InvariantCulture);
mCurrentMtrl.Kd = new Vector(x, y, z);
break;
}
case "ks":
{
float x = float.Parse(tokens[1], CultureInfo.InvariantCulture);
float y = float.Parse(tokens[2], CultureInfo.InvariantCulture);
float z = float.Parse(tokens[3], CultureInfo.InvariantCulture);
mCurrentMtrl.Ks = new Vector(x, y, z);
break;
}
case "ke":
{
float x = float.Parse(tokens[1], CultureInfo.InvariantCulture);
float y = float.Parse(tokens[2], CultureInfo.InvariantCulture);
float z = float.Parse(tokens[3], CultureInfo.InvariantCulture);
mCurrentMtrl.Ke = new Vector(x, y, z);
break;
}
case "map_d":
case "map_opacity":
{
var fileName = ProcessTexture(line.Substring(token.Length), tokens);
mCurrentMtrl.AlphaMap = fileName ?? tokens.Except(new[] { tokens.First() }).Aggregate((a, b) => a + ' ' + b);
break;
}
//case "map_ka":
// {
// var fileName = ProcessTexture(line.Substring(token.Length), tokens);
// mCurrentMtrl.KdMap = fileName ?? tokens.Except(new[] { tokens.First() }).Aggregate((a, b) => a + ' ' + b);
// break;
// }
case "map_kd":
{
mCurrentMtrl.KdMap = Path.GetFileName(ProcessTexture(line.Substring(token.Length), tokens) ?? tokens.Except(new[] { tokens.First() }).Aggregate((a, b) => a + ' ' + b));
break;
}
case "map_refl":
case "map_ks":
{
mCurrentMtrl.KsMap = ProcessTexture(line.Substring(token.Length), tokens) ?? tokens.Except(new[] { tokens.First() }).Aggregate((a, b) => a + ' ' + b);
break;
}
case "decal":
{
mCurrentMtrl.DataMap = ProcessTexture(line.Substring(token.Length), tokens) ?? tokens.Except(new[] { tokens.First() }).Aggregate((a, b) => a + ' ' + b);
break;
}
case "bump":
case "map_bump":
{
//tokens.Last();
mCurrentMtrl.BumpMap = Path.GetFileName(ProcessTexture(line.Substring(token.Length), tokens) ?? tokens.Except(new[] { tokens.First() }).Aggregate((a, b) => a + ' ' + b));
break;
}
default:
break;
}
}
catch (Exception ex)
{
Console.WriteLine("Error parsing mtrl token: " + token);
Console.WriteLine(ex.Message + ex.StackTrace);
}
}
private static MaterialInfo CreateMaterial(string name, ObjMaterial material)
{
try
{
var res = new MaterialInfo()
{
Ka = material.Ka,
Kd = material.Kd,
Ks = material.Ks,
Ke = material.Ke,
Exponent = material.Ns,
Name = name
};
if (!string.IsNullOrWhiteSpace(material.KaMap))
{
res.Specular = new ImageTextureInfo()
{
FilePath = material.KaMap,
Name = Path.GetFileName(material.KaMap)
};
}
if (!string.IsNullOrWhiteSpace(material.KdMap))
{
res.Diffuse = new ImageTextureInfo()
{
FilePath = material.KdMap,
Name = Path.GetFileName(material.KdMap)
};
}
if (!string.IsNullOrWhiteSpace(material.KsMap))
{
res.Specular = new ImageTextureInfo()
{
FilePath = material.KsMap,
Name = Path.GetFileName(material.KsMap)
};
}
if (!string.IsNullOrWhiteSpace(material.BumpMap))
{
res.BumpMap = new ImageTextureInfo()
{
FilePath = material.BumpMap,
Name = Path.GetFileName(material.BumpMap)
};
}
if (!string.IsNullOrWhiteSpace(material.AlphaMap))
{
res.Alpha = new ImageTextureInfo()
{
FilePath = material.AlphaMap,
Name = Path.GetFileName(material.AlphaMap)
};
}
if (!string.IsNullOrWhiteSpace(material.NormalMap))
{
res.NormalMap = new ImageTextureInfo()
{
FilePath = material.NormalMap,
Name = Path.GetFileName(material.NormalMap)
};
}
if (!string.IsNullOrWhiteSpace(material.DataMap))
{
res.DataFile = material.DataMap;
}
return res;
}
catch (Exception ex)
{
throw ex;
}
}
