public override Model Read(string name, FileInfo file)
{
Model model = base.Read(name, file);
try
{
StreamReader reader = file.OpenText();
List<string> matFiles = new List<string>();
Mesh mesh = model.NewMesh();
while (!reader.EndOfStream)
{
string line = reader.ReadLine().Trim();
if (line == string.Empty || line[0] == '#')
continue;
string[] lineParts = line.Split(" ".ToCharArray());
if (lineParts.Length == 1)
continue;
string code = lineParts[0].ToLower();
if (code == "v")
model.Geometry.Vertecies.Add(ReadVector3(lineParts, 1));
else if (code == "vn")
model.Geometry.Normals.Add(ReadVector3(lineParts, 1));
else if (code == "vt")
{
Vector2 uv = ReadVector2(lineParts, 1);
uv.Y = 1 - uv.Y;
model.Geometry.UVs.Add(uv);
}
else if (code == "usemtl")
{
string matName = lineParts[1];
if (mesh.MaterialName == string.Empty)
{
mesh.MaterialName = matName;
model.Meshes.Add(matName, mesh);
}
else
{
if (model.Meshes.ContainsKey(matName))
mesh = model.Meshes[matName];
else
{
mesh = model.NewMesh();
mesh.MaterialName = matName;
model.Meshes.Add(matName, mesh);
}
}
}
else if (code == "f")
{
if (lineParts.Length < 4)
continue;
Mesh.Face face = new Mesh.Face();
for (int i = 1; i < lineParts.Length; i++)
{
if (lineParts[i].Contains('#'))
continue;
string[] vertParts = lineParts[i].Trim().Split("/".ToCharArray());
int vert = 0;
int norm = 0;
int uv = 0;
int.TryParse(vertParts[0], out vert);
if (vert < 0)
vert = model.Geometry.Vertecies.Count + vert;
else
vert--;
if (vertParts.Length == 2)
{
int.TryParse(vertParts[1], out uv);
if (norm < 0)
norm = model.Geometry.UVs.Count + uv;
else
norm--;
}
else
{
int.TryParse(vertParts[2], out norm);
if (norm < 0)
norm = model.Geometry.Normals.Count + norm;
else
norm--;
int.TryParse(vertParts[1], out uv);
if (uv < 0)
uv = model.Geometry.UVs.Count + uv;
else
uv--;
}
face.Vertecies.Add(new Mesh.Face.Indecies((UInt16)vert, (UInt16)norm, (UInt16)uv));
}
if (face.Vertecies.Count > 2)
mesh.Faces.Add(face);
}
}
reader.Close();
}
catch (System.Exception /*ex*/)
{
return null;
}
return model;
}
public override Model Read(string name, FileInfo file)
{
Model model = base.Read(name, file);
try
{
StreamReader reader = file.OpenText();
List <string> matFiles = new List <string>();
Mesh mesh = model.NewMesh();
while (!reader.EndOfStream)
{
string line = reader.ReadLine().Trim();
if (line == string.Empty || line[0] == '#')
{
continue;
}
string[] lineParts = line.Split(" ".ToCharArray());
if (lineParts.Length == 1)
{
continue;
}
string code = lineParts[0].ToLower();
if (code == "v")
{
model.Geometry.Vertecies.Add(ReadVector3(lineParts, 1));
}
else if (code == "vn")
{
model.Geometry.Normals.Add(ReadVector3(lineParts, 1));
}
else if (code == "vt")
{
Vector2 uv = ReadVector2(lineParts, 1);
uv.Y = 1 - uv.Y;
model.Geometry.UVs.Add(uv);
}
else if (code == "usemtl")
{
string matName = lineParts[1];
if (mesh.MaterialName == string.Empty)
{
mesh.MaterialName = matName;
model.Meshes.Add(matName, mesh);
}
else
{
if (model.Meshes.ContainsKey(matName))
{
mesh = model.Meshes[matName];
}
else
{
mesh = model.NewMesh();
mesh.MaterialName = matName;
model.Meshes.Add(matName, mesh);
}
}
}
else if (code == "f")
{
if (lineParts.Length < 4)
{
continue;
}
Mesh.Face face = new Mesh.Face();
for (int i = 1; i < lineParts.Length; i++)
{
if (lineParts[i].Contains('#'))
{
continue;
}
string[] vertParts = lineParts[i].Trim().Split("/".ToCharArray());
int vert = 0;
int norm = 0;
int uv = 0;
int.TryParse(vertParts[0], out vert);
if (vert < 0)
{
vert = model.Geometry.Vertecies.Count + vert;
}
else
{
vert--;
}
if (vertParts.Length == 2)
{
int.TryParse(vertParts[1], out uv);
if (norm < 0)
{
norm = model.Geometry.UVs.Count + uv;
}
else
{
norm--;
}
}
else
{
int.TryParse(vertParts[2], out norm);
if (norm < 0)
{
norm = model.Geometry.Normals.Count + norm;
}
else
{
norm--;
}
int.TryParse(vertParts[1], out uv);
if (uv < 0)
{
uv = model.Geometry.UVs.Count + uv;
}
else
{
uv--;
}
}
face.Vertecies.Add(new Mesh.Face.Indecies((UInt16)vert, (UInt16)norm, (UInt16)uv));
}
if (face.Vertecies.Count > 2)
{
mesh.Faces.Add(face);
}
}
}
reader.Close();
}
catch (System.Exception /*ex*/)
{
return(null);
}
return(model);
}
