///Geometry
private void SetGeometryData(string data)
{
data = data.Replace("\r\n", "\n");
string[] lines = data.Split("\n".ToCharArray());
Vector3 v;
mainso = new scaleoffset();
for (int i = 0; i < lines.Length; i++)
{
string l = lines[i];
l = Regex.Replace(l, @"# object", "o"); //tomekkie ALTERATION
if (l.IndexOf("#") != -1)
{
l = l.Substring(0, l.IndexOf("#"));
}
l = Regex.Replace(l, @"\s+", " ");
l = l.Trim();
string[] p = l.Split(" ".ToCharArray());
switch (p[0])
{
case O:
if (!EnforceSingleObj)
{
if (currentso != null)
{
currentso.vlast = vcount;
objso.Add(currentso);
}
buffer.PushObject(p[1].Trim());
currentso = new scaleoffset();
currentso.vfirst = vcount;
currentso.name = p[1].Trim();
}
break;
case G:
buffer.PushGroup(p[1].Trim());
break;
case V:
if (p.Length >= 3)
{
v = new Vector3(cf(p[1]), cf(p[2]), 0 - cf(p[3]));
buffer.PushVertex(v); //Any 0- Flipping should match normals
vcount++;
pushscaleoffset(mainso, v);
if (currentso != null)
{
pushscaleoffset(currentso, v);
}
}
break;
case VT:
if (p.Length >= 2)
{
buffer.PushUV(new Vector2(cf(p[1]), cf(p[2])));
}
break;
case VN:
if (p.Length >= 3)
{
buffer.PushNormal(new Vector3(cf(p[1]), cf(p[2]), 0 - cf(p[3]))); //Any 0- Flipping should match vertex
}
break;
case F:
if (p.Length >= 4)
{
if (p.Length <= 5) //is triangle or quad
{
string[] c;
for (int j = 0; j < p.Length - 3; j++) //get all possible triangles from line
{
FaceIndices fi = new FaceIndices(); //1 vert
c = p[1].Trim().Split("/".ToCharArray());
if (c.Length > 0 && c[0] != string.Empty)
{
fi.vi = ci(c[0]) - 1;
}
if (c.Length > 1 && c[1] != string.Empty)
{
fi.vu = ci(c[1]) - 1;
}
if (c.Length > 2 && c[2] != string.Empty)
{
fi.vn = ci(c[2]) - 1;
}
buffer.PushFace(fi);
for (int k = 0; k < 2; k++) //2nd and 3rd vert
{
fi = new FaceIndices();
int no = 3 - k + j; // To invert faces replace with : int no=2+k+j;
c = p[no].Trim().Split("/".ToCharArray());
if (c.Length > 0 && c[0] != string.Empty)
{
fi.vi = ci(c[0]) - 1;
}
if (c.Length > 1 && c[1] != string.Empty)
{
fi.vu = ci(c[1]) - 1;
}
if (c.Length > 2 && c[2] != string.Empty)
{
fi.vn = ci(c[2]) - 1;
}
buffer.PushFace(fi);
}
}
}
else //is poly try triangulate, see TriPoly script
{
TriPoly triangulation;
triangulation = new TriPoly();
Vector3[] pointlist = new Vector3[p.Length - 1];
//Vector3[] normallist=new Vector3[p.Length-1];
string[] c;
for (int j = 1; j < p.Length; j++) //go through each faceindex in poly list and pull relevant vertice from geometrybuffer add to vector[]
{
c = p[j].Trim().Split("/".ToCharArray());
if (c.Length > 0 && c[0] != string.Empty)
{
pointlist[j - 1] = buffer.vertices[ci(c[0]) - 1];
}
//if (c.Length > 2 && c[2] != string.Empty) {normallist[j-1] = buffer.normals[ci(c[2])-1];}
}
int[] indices;
//if (normallist!=null) {
// indices=triangulation.Patch(pointlist, normallist);
//} else {
indices = triangulation.Patch(pointlist); //, normallist
//}
if (indices.Length > 2)
{
for (int j = 0; j < indices.Length; ++j) //may need to reverse this?
{
FaceIndices fi = new FaceIndices();
c = p[indices[j] + 1].Trim().Split("/".ToCharArray());
if (c.Length > 0 && c[0] != string.Empty)
{
fi.vi = ci(c[0]) - 1;
}
if (c.Length > 1 && c[1] != string.Empty)
{
fi.vu = ci(c[1]) - 1;
}
if (c.Length > 2 && c[2] != string.Empty)
{
fi.vn = ci(c[2]) - 1;
}
buffer.PushFace(fi);
}
}
}
}
break;
case MTL:
mtllib = p[1].Trim();
break;
case UML:
buffer.PushMaterialGroup(p[1].Trim()); //hello
break;
}
}
if (currentso != null)
{
currentso.vlast = vcount;
objso.Add(currentso);
}
}