private void ReadFaceVertexIndex(String text, ref FaceVertexIndex v)
{
String[] ints = text.Split('/');
v.vertex = int.Parse(ints[0]);
v.texture = int.Parse(ints[1]);
v.normal = int.Parse(ints[2]);
}
public FaceVertexIndex ReadVertexIndex(BinaryReader reader)
{
FaceVertexIndex newVertexIndex = new FaceVertexIndex();
newVertexIndex.index = reader.ReadUInt16();
newVertexIndex.link = reader.ReadUInt16();
return(newVertexIndex);
}
private void ReadFaceVertexIndex(String text, ref FaceVertexIndex v)
{
String[] ints = text.Split('/');
v.vertex = int.Parse(ints[0]);
v.texture = int.Parse(ints[1]);
v.normal = int.Parse(ints[2]);
}
public bool Load(String filename)
{
StreamReader re = null;
try
{
re = File.OpenText(filename);
}
catch
{
// can't open file
return false;
}
int line_count = 0;
do
{
String line = null;
try
{
line = re.ReadLine();
}
catch
{
// eof
break;
}
if (line == null)
{
break;
}
line_count++;
String[] words = line.Split(' ');
if (words[0] == "v")
{
OpenTK.Vector3 v3;
v3.X = float.Parse(words[1]);
v3.Y = float.Parse(words[2]);
v3.Z = float.Parse(words[3]);
vertices.Add(v3);
}
else if (words[0] == "vt")
{
OpenTK.Vector2 v2;
v2.X = float.Parse(words[1]);
v2.Y = 1.0f - float.Parse(words[2]);
texcoords.Add(v2);
}
else if (words[0] == "vn")
{
OpenTK.Vector3 v3;
v3.X = float.Parse(words[1]);
v3.Y = float.Parse(words[2]);
v3.Z = float.Parse(words[3]);
normals.Add(v3);
}
else if (words[0] == "f")
{
FaceVertexIndex i1 = new FaceVertexIndex();
FaceVertexIndex i2 = new FaceVertexIndex();
FaceVertexIndex i3 = new FaceVertexIndex();
FaceVertexIndex i4 = new FaceVertexIndex();
switch (words.Length)
{
case 4:
// three indices
ReadFaceVertexIndex(words[1], ref i1);
ReadFaceVertexIndex(words[2], ref i2);
ReadFaceVertexIndex(words[3], ref i3);
indexes.Add(i1);
indexes.Add(i2);
indexes.Add(i3);
break;
case 5:
// four indices, quad, two triangles
ReadFaceVertexIndex(words[1], ref i1);
ReadFaceVertexIndex(words[2], ref i2);
ReadFaceVertexIndex(words[3], ref i3);
ReadFaceVertexIndex(words[4], ref i4);
indexes.Add(i1);
indexes.Add(i2);
indexes.Add(i3);
indexes.Add(i1);
indexes.Add(i3);
indexes.Add(i4);
break;
default:
Console.WriteLine("Unhandled face index size {0}", words.Length);
break;
}
}
} while (true);
/*
foreach (FaceVertexIndex fvi in indexes)
{
// Obj indices start at 1
fvi.vertex -= 1;
fvi.texture -= 1;
fvi.normal -= 1;
Console.WriteLine("{0}, {1}, {2}", fvi.vertex, fvi.texture, fvi.normal);
}
*/
is_loaded = true;
return true;
}
public bool Load(String filename)
{
StreamReader re = null;
try
{
re = File.OpenText(filename);
}
catch
{
// can't open file
return(false);
}
int line_count = 0;
do
{
String line = null;
try
{
line = re.ReadLine();
}
catch
{
// eof
break;
}
if (line == null)
{
break;
}
line_count++;
String[] words = line.Split(' ');
if (words[0] == "v")
{
OpenTK.Vector3 v3;
v3.X = float.Parse(words[1]);
v3.Y = float.Parse(words[2]);
v3.Z = float.Parse(words[3]);
vertices.Add(v3);
}
else if (words[0] == "vt")
{
OpenTK.Vector2 v2;
v2.X = float.Parse(words[1]);
v2.Y = 1.0f - float.Parse(words[2]);
texcoords.Add(v2);
}
else if (words[0] == "vn")
{
OpenTK.Vector3 v3;
v3.X = float.Parse(words[1]);
v3.Y = float.Parse(words[2]);
v3.Z = float.Parse(words[3]);
normals.Add(v3);
}
else if (words[0] == "f")
{
FaceVertexIndex i1 = new FaceVertexIndex();
FaceVertexIndex i2 = new FaceVertexIndex();
FaceVertexIndex i3 = new FaceVertexIndex();
FaceVertexIndex i4 = new FaceVertexIndex();
switch (words.Length)
{
case 4:
// three indices
ReadFaceVertexIndex(words[1], ref i1);
ReadFaceVertexIndex(words[2], ref i2);
ReadFaceVertexIndex(words[3], ref i3);
indexes.Add(i1);
indexes.Add(i2);
indexes.Add(i3);
break;
case 5:
// four indices, quad, two triangles
ReadFaceVertexIndex(words[1], ref i1);
ReadFaceVertexIndex(words[2], ref i2);
ReadFaceVertexIndex(words[3], ref i3);
ReadFaceVertexIndex(words[4], ref i4);
indexes.Add(i1);
indexes.Add(i2);
indexes.Add(i3);
indexes.Add(i1);
indexes.Add(i3);
indexes.Add(i4);
break;
default:
Console.WriteLine("Unhandled face index size {0}", words.Length);
break;
}
}
} while (true);
/*
* foreach (FaceVertexIndex fvi in indexes)
* {
* // Obj indices start at 1
* fvi.vertex -= 1;
* fvi.texture -= 1;
* fvi.normal -= 1;
* Console.WriteLine("{0}, {1}, {2}", fvi.vertex, fvi.texture, fvi.normal);
* }
*/
is_loaded = true;
return(true);
}
