private bool ParseObjLine(ref string objline)
{
linePart = objline.Trim().Split(linePartSplitChar);
switch (linePart[0])
{
case O:
//buffer.AddObject(linePart[1].Trim()); We skip object seperation, to reduce object count.
//Importing large SketchupUp generated OBJ files results in an enormous amount of objects, making WebGL builds explode.
break;
case MTLLIB:
mtllib = line.Substring(linePart[0].Length + 1).Trim();
break;
case USEMTL:
buffer.AddSubMeshGroup(linePart[1].Trim());
break;
case V:
buffer.PushVertex(new Vector3(cf(linePart[1]), cf(linePart[2]), cf(linePart[3])));
break;
case VT:
buffer.PushUV(new Vector2(cf(linePart[1]), cf(linePart[2])));
break;
case VN:
buffer.PushNormal(new Vector3(cf(linePart[1]), cf(linePart[2]), cf(linePart[3])));
break;
case F:
var faces = new FaceIndices[linePart.Length - 1];
GetFaceIndices(faces, linePart);
if (linePart.Length == 4)
{
//tris
buffer.PushFace(faces[0]);
buffer.PushFace(faces[1]);
buffer.PushFace(faces[2]);
}
else if (linePart.Length == 5)
{
//quad
buffer.PushFace(faces[0]);
buffer.PushFace(faces[1]);
buffer.PushFace(faces[3]);
buffer.PushFace(faces[3]);
buffer.PushFace(faces[1]);
buffer.PushFace(faces[2]);
}
else
{
Debug.LogWarning("face vertex count :" + (linePart.Length - 1) + " larger than 4. Ngons not supported.");
return(false); //Return failure. Not triangulated.
}
break;
}
return(true);
}
private void SetGeometryData(string data)
{
string[] lines = data.Split("\n".ToCharArray());
for (int i = 0; i < lines.Length; i++)
{
string l = lines[i];
l = l.Replace(" ", " |").Replace("| ", "").Replace("|", "");
if (l.IndexOf("#") != -1)
{
l = l.Substring(0, l.IndexOf("#"));
}
string[] p = l.Split(" ".ToCharArray());
switch (p[0])
{
case O:
//buffer.PushObject(p[1].Trim());
break;
case G:
buffer.PushGroup(p[1].Trim());
break;
case V:
buffer.PushVertex(new Vector3(cf(p[1]), cf(p[2]), cf(p[3])));
break;
case VT:
buffer.PushUV(new Vector2(cf(p[1]), cf(p[2])));
break;
case VN:
buffer.PushNormal(new Vector3(cf(p[1]), cf(p[2]), cf(p[3])));
break;
case F:
for (int j = 1; j < p.Length; j++)
{
string[] c = p[j].Trim().Split("/".ToCharArray());
FaceIndices fi = new FaceIndices();
if (c[0] != "")
{
fi.vi = ci(c[0]) - 1;
}
if (c.Length > 1 && c[1] != "")
{
fi.vu = ci(c[1]) - 1;
}
if (c.Length > 2 && c[2] != "")
{
fi.vn = ci(c[2]) - 1;
}
if (c[0] != "")
{
buffer.PushFace(fi);
}
}
break;
case MTL:
mtllib = p[1].Trim();
break;
case UML:
buffer.PushMaterialName(p[1].Trim());
break;
}
}
//buffer.Trace();
}
private void SetGeometryData(string data)
{
string[] lines = data.Split("\n".ToCharArray());
Regex regexWhitespaces = new Regex(@"\s+");
bool isFirstInGroup = true;
bool isFaceIndexPlus = true;
for (int i = 0; i < lines.Length; i++)
{
string l = lines[i].Trim();
if (l.IndexOf("#") != -1) // comment line
{
continue;
}
string[] p = regexWhitespaces.Split(l);
switch (p[0])
{
case O:
buffer.PushObject(p[1].Trim());
isFirstInGroup = true;
break;
case G:
string groupName = null;
if (p.Length >= 2)
{
groupName = p[1].Trim();
}
isFirstInGroup = true;
buffer.PushGroup(groupName);
break;
case V:
buffer.PushVertex(new Vector3(cf(p[1]), cf(p[2]), cf(p[3])));
break;
case VT:
buffer.PushUV(new Vector2(cf(p[1]), cf(p[2])));
break;
case VN:
buffer.PushNormal(new Vector3(cf(p[1]), cf(p[2]), cf(p[3])));
break;
case F:
FaceIndices[] faces = new FaceIndices[p.Length - 1];
if (isFirstInGroup)
{
isFirstInGroup = false;
string[] c = p[1].Trim().Split("/".ToCharArray());
isFaceIndexPlus = (ci(c[0]) >= 0);
}
GetFaceIndicesByOneFaceLine(faces, p, isFaceIndexPlus);
if (p.Length == 4)
{
buffer.PushFace(faces[0]);
buffer.PushFace(faces[1]);
buffer.PushFace(faces[2]);
}
else if (p.Length == 5)
{
buffer.PushFace(faces[0]);
buffer.PushFace(faces[1]);
buffer.PushFace(faces[3]);
buffer.PushFace(faces[3]);
buffer.PushFace(faces[1]);
buffer.PushFace(faces[2]);
}
else
{
//Debug.LogWarning("face vertex count :"+(p.Length-1)+" larger than 4:");
}
break;
case MTL:
mtllib = l.Substring(p[0].Length + 1).Trim();
break;
case UML:
buffer.PushMaterialName(p[1].Trim());
break;
}
}
// buffer.Trace();
}
static private void ProcessOBJLine(GeometryBuffer gBuffer, string line)
{
string l = line;
int iSchrp = l.IndexOf("#");
if (iSchrp != -1)
{
l = l.Substring(0, iSchrp);
}
l = l.Trim().Replace(" ", " ");
string[] p = l.Split(" ".ToCharArray());
switch (p[0])
{
case O:
gBuffer.PushObject(p[1].Trim());
break;
case G:
gBuffer.PushGroup(p[1].Trim());
break;
case V:
gBuffer.PushVertex(new Vector3(Cf(p[1]), Cf(p[2]), Cf(p[3])));
break;
case VT:
gBuffer.PushUV(new Vector2(Cf(p[1]), Cf(p[2])));
break;
case VN:
gBuffer.PushNormal(new Vector3(Cf(p[1]), Cf(p[2]), Cf(p[3])));
break;
case F:
string[] c;
FaceIndices fi;
if (p.Length - 1 == 3)
{
//For Triangles
for (int j = 0; j < 3; j++)
{
c = p[rightTrisWay[j]].Trim().Split("/".ToCharArray());
fi = new FaceIndices();
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;
}
gBuffer.PushFace(fi);
}
}
else
{
//For Quads
for (int j = 0; j < 6; j++)
{
c = p[rightQuadsWay[j]].Trim().Split("/".ToCharArray());
fi = new FaceIndices();
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;
}
gBuffer.PushFace(fi);
}
}
break;
default:
break;
}
}
private void SetGeometryData(string data)
{
string[] lines = data.Split("\n".ToCharArray());
for (int i = 0; i < lines.Length; i++)
{
string l = lines[i];
if (l.IndexOf("#") != -1)
{
l = l.Substring(0, l.IndexOf("#"));
}
string[] p = l.Split(" ".ToCharArray());
switch (p[0])
{
case O:
buffer.PushObject(p[1].Trim());
break;
case G:
buffer.PushGroup(p[1].Trim());
break;
case V:
//Unity has a left-handed coordinates system while Molecular OBJs are right-handed
//So we have to negate the X coordinates
buffer.PushVertex(new Vector3(-cf(p[1]), cf(p[2]), cf(p[3])));
compteurvertice++;
break;
case VT:
buffer.PushUV(new Vector2(cf(p[1]), cf(p[2])));
break;
case VN:
//Unity has a left-handed coordinates system while Molecular OBJs are right-handed
//So we have to negate the X coordinates
//Here it affects only light ! The winding reverse is in GeometryBuffer::PopulateMeshes
Vector3 norm = new Vector3(-cf(p[1]), cf(p[2]), cf(p[3]));
norm.Normalize();
buffer.PushNormal(norm);
break;
case F:
for (int j = 1; j < p.Length; j++)
{
string[] c = p[j].Trim().Split("/".ToCharArray());
// Debug.Log("" +p[j]);
FaceIndices fi = new FaceIndices();
fi.vi = ci(c[0]) - 1;
if (c.Length > 1 && c[1] != "")
{
fi.vu = ci(c[1]) - 1;
}
if (c.Length > 2 && c[2] != "")
{
fi.vn = ci(c[2]) - 1;
}
// Debug.Log("vi "+fi.vi+" vu "+fi.vu+ " vn "+fi.vn);
buffer.PushFace(fi);
}
break;
case MTL:
if (mtl_reader != null)
{
mtllib = p[1].Trim();
}
break;
case UML:
if (mtl_reader != null)
{
buffer.PushMaterialName(p[1].Trim());
}
break;
}
}
// buffer.Trace();
}
private IEnumerator SetGeometryData(string data)
{
yield return(0); // play nice by not hogging the main thread
string[] lines = data.Split("\n".ToCharArray());
bool isFirstInGroup = true;
bool isFaceIndexPlus = true;
for (int i = 0; i < lines.Length; i++)
{
string l = lines[i].Trim();
if (l.Length > 0 && l[0] == '#') // comment line
{
continue;
}
string[] p = l.Replace(" ", " ").Split(' ');
switch (p[0])
{
case O:
buffer.PushObject(p[1].Trim());
isFirstInGroup = true;
break;
case G:
string groupName = null;
if (p.Length >= 2)
{
groupName = p[1].Trim();
}
isFirstInGroup = true;
buffer.PushGroup(groupName);
break;
case V:
buffer.PushVertex(new Vector3(cf(p[1]), cf(p[2]), cf(p[3])));
break;
case VT:
buffer.PushUV(new Vector2(cf(p[1]), cf(p[2])));
break;
case VN:
buffer.PushNormal(new Vector3(cf(p[1]), cf(p[2]), cf(p[3])));
break;
case F:
FaceIndices[] faces = new FaceIndices[p.Length - 1];
if (isFirstInGroup)
{
isFirstInGroup = false;
string[] c = p[1].Trim().Split("/".ToCharArray());
isFaceIndexPlus = (ci(c[0]) >= 0);
}
GetFaceIndicesByOneFaceLine(faces, p, isFaceIndexPlus);
if (p.Length == 4)
{
buffer.PushFace(faces[0]);
buffer.PushFace(faces[1]);
buffer.PushFace(faces[2]);
}
else if (p.Length == 5)
{
buffer.PushFace(faces[0]);
buffer.PushFace(faces[1]);
buffer.PushFace(faces[3]);
buffer.PushFace(faces[3]);
buffer.PushFace(faces[1]);
buffer.PushFace(faces[2]);
}
else
{
//Debug.LogWarning("face vertex count :"+(p.Length-1)+" larger than 4:");
}
break;
case MTL:
mtllib = l.Substring(p[0].Length + 1).Trim();
break;
case UML:
buffer.PushMaterialName(p[1].Trim());
break;
}
if (i % 7000 == 0)
{
yield return(0); // play nice with main thread while parsing large objs
}
}
// buffer.Trace();
}
public static void SetGeometryData(string data, GeometryBuffer buffer)
{
var lines = data.Split("\n".ToCharArray(), StringSplitOptions.RemoveEmptyEntries);
for (var i = 0; i < lines.Length; i++)
{
var l = lines[i].Trim();
if (l.IndexOf("#") != -1)
l = l.Substring(0, l.IndexOf("#"));
var p = l.Split(" ".ToCharArray(), StringSplitOptions.RemoveEmptyEntries);
if (p.Length > 1)
{
switch (p[0])
{
case O:
buffer.PushObject(p[1].Trim());
break;
case G:
buffer.PushGroup(p[1].Trim());
break;
case V:
buffer.PushVertex(new Vector3(
Cf(p[1]),
Cf(p[2]),
Cf(p[3]))
);
break;
case Vt:
buffer.PushUv(new Vector2(Cf(p[1]), Cf(p[2])));
break;
case Vn:
buffer.PushNormal(new Vector3(Cf(p[1]), Cf(p[2]), Cf(p[3])));
break;
case F:
for (var j = 1; j < p.Length; j++)
{
var c = p[j].Trim().Split("/".ToCharArray(), StringSplitOptions.RemoveEmptyEntries);
var fi = new FaceIndices();
fi.Vi = Ci(c[0]) - 1;
if (c.Length > 1)
{
fi.Vu = Ci(c[1]) - 1;
}
if (c.Length > 2)
{
fi.Vn = Ci(c[2]) - 1;
}
buffer.PushFace(fi);
}
break;
case Mtl:
// mtllib = p[1].Trim();
break;
case Uml:
buffer.PushMaterialName(p[1].Trim());
break;
}
}
}
// buffer.Trace();
}
///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);
}
}
