public static WFObject Load(string filename)
{
int linesSkipped = 0, unknownTokens = 0, faces = 0;
StreamReader reader = new StreamReader(filename);
WFObject result = new WFObject();
string currentGroup = DEFAULT_GROUP_ID;
string[] sep1 = { " " };
string[] sep2 = { "/" };
while (!reader.EndOfStream)
{
string line = reader.ReadLine().Trim();
string[] tokens = line.Split(sep1, StringSplitOptions.RemoveEmptyEntries);
if (tokens.Length == 0)
{
linesSkipped++;
continue;
}
string command = tokens[0].ToLower();
if (command.Equals(T_VERTEX)) // new vertex
{
result.vertices.Add(new WFVertex(float.Parse(tokens[1]), float.Parse(tokens[2]), float.Parse(tokens[3])));
}
else if (command.Equals(T_NORMAL)) // new normal
{
result.normals.Add(new WFNormal(float.Parse(tokens[1]), float.Parse(tokens[2]), float.Parse(tokens[3])));
}
else if (command.Equals(T_TEXCOORD)) // new texcoord
{
result.texCoords.Add(new WFTexCoord(float.Parse(tokens[1]), float.Parse(tokens[2])));
}
else if (command.Equals(T_FACE)) // new face
{
WFFace face = new WFFace(); // create the new face
for (int i = 1; i < tokens.Length; i++) // get the vertices
{
string faceDescr = tokens[i];
string[] components = faceDescr.Split(sep2, StringSplitOptions.None);
int v = int.Parse(components[0]) - 1;
int vt = -1;
int vn = -1;
if (components.Length == 2) // vi/vt
{
vt = int.Parse(components[1]) - 1;
}
else if (components.Length == 3) // vi/(vt)/vn
{
vt = components[1].Equals(string.Empty) ? -1 : int.Parse(components[1]) - 1;
vn = int.Parse(components[2]) - 1;
}
face.AddVertex(v, vn, vt); // add the vertex to the face
}
faces++;
// add the face to the current group
if (result.faceGroups.ContainsKey(currentGroup))
{
result.faceGroups[currentGroup].AddFace(face);
}
else
{
WFFaceGroup grp = new WFFaceGroup(currentGroup);
grp.AddFace(face);
result.faceGroups.Add(currentGroup, grp);
}
}
else if (command.Equals(T_USEMATERIAL))
{
currentGroup = tokens[1];
}
else if (command.Equals(T_COMMENT))
{
result.WriteLog(line, LOG_COMMENT);
}
else
{
unknownTokens++;
}
Thread.Yield();
}
result.WriteLogSeparator();
result.WriteLog("Loading done!", LOG_INFO);
result.WriteLogSeparator();
result.WriteLog("Vertices: " + result.vertices.Count, LOG_INFO);
result.WriteLog("Normals: " + result.normals.Count, LOG_INFO);
result.WriteLog("TexCoords: " + result.texCoords.Count, LOG_INFO);
result.WriteLog("Faces: " + faces, LOG_INFO);
result.WriteLog("Groups: " + result.faceGroups.Count, LOG_INFO);
result.WriteLogSeparator();
result.WriteLog("Empty lines: " + linesSkipped, LOG_INFO);
result.WriteLog("Unknown tokens: " + unknownTokens, LOG_WARNING);
return(result);
}
public void AddFace(WFFace face)
{
faces.Add(face);
}
public void AddFace(WFFace face)
{
faces.Add(face);
}
public static WFObject Load(string filename)
{
int linesSkipped = 0, unknownTokens = 0, faces = 0;
StreamReader reader = new StreamReader(filename);
WFObject result = new WFObject();
string currentGroup = DEFAULT_GROUP_ID;
string[] sep1 = { " " };
string[] sep2 = { "/" };
while (!reader.EndOfStream)
{
string line = reader.ReadLine().Trim();
string[] tokens = line.Split(sep1, StringSplitOptions.RemoveEmptyEntries);
if (tokens.Length == 0)
{
linesSkipped++;
continue;
}
string command = tokens[0].ToLower();
if (command.Equals(T_VERTEX)) // new vertex
{
result.vertices.Add(new WFVertex(float.Parse(tokens[1]), float.Parse(tokens[2]), float.Parse(tokens[3])));
}
else if (command.Equals(T_NORMAL)) // new normal
{
result.normals.Add(new WFNormal(float.Parse(tokens[1]), float.Parse(tokens[2]), float.Parse(tokens[3])));
}
else if (command.Equals(T_TEXCOORD)) // new texcoord
{
result.texCoords.Add(new WFTexCoord(float.Parse(tokens[1]), float.Parse(tokens[2])));
}
else if(command.Equals(T_FACE)) { // new face
WFFace face = new WFFace(); // create the new face
for (int i = 1; i < tokens.Length; i++) // get the vertices
{
string faceDescr = tokens[i];
string[] components = faceDescr.Split(sep2, StringSplitOptions.None);
int v = int.Parse(components[0]) - 1;
int vt = -1;
int vn = -1;
if (components.Length == 2) // vi/vt
{
vt = int.Parse(components[1]) - 1;
}
else if (components.Length == 3) // vi/(vt)/vn
{
vt = components[1].Equals(string.Empty) ? -1 : int.Parse(components[1]) - 1;
vn = int.Parse(components[2]) - 1;
}
face.AddVertex(v,vn, vt); // add the vertex to the face
}
faces++;
// add the face to the current group
if (result.faceGroups.ContainsKey(currentGroup))
{
result.faceGroups[currentGroup].AddFace(face);
}
else
{
WFFaceGroup grp = new WFFaceGroup(currentGroup);
grp.AddFace(face);
result.faceGroups.Add(currentGroup, grp);
}
}
else if (command.Equals(T_USEMATERIAL))
{
currentGroup = tokens[1];
}
else if (command.Equals(T_COMMENT))
{
result.WriteLog(line, LOG_COMMENT);
}
else
{
unknownTokens++;
}
Thread.Yield();
}
result.WriteLogSeparator();
result.WriteLog("Loading done!", LOG_INFO);
result.WriteLogSeparator();
result.WriteLog("Vertices: " + result.vertices.Count, LOG_INFO);
result.WriteLog("Normals: " + result.normals.Count, LOG_INFO);
result.WriteLog("TexCoords: " + result.texCoords.Count, LOG_INFO);
result.WriteLog("Faces: " + faces, LOG_INFO);
result.WriteLog("Groups: " + result.faceGroups.Count, LOG_INFO);
result.WriteLogSeparator();
result.WriteLog("Empty lines: " + linesSkipped, LOG_INFO);
result.WriteLog("Unknown tokens: " + unknownTokens, LOG_WARNING);
return result;
}
public override void Write(WFObject inputObject, FileStream outStream)
{
BinaryWriter writer = new BinaryWriter(outStream);
string[] faceGroupIDs = inputObject.FaceGroups;
int shadingGroupsCount = inputObject.FaceGroups.Length;
/* Remove the empty groups from the count */
for (int i = 0; i < inputObject.FaceGroups.Length; i++)
{
if (inputObject[i].FaceCount == 0)
{
shadingGroupsCount--;
}
}
// write header;
writer.Write(CURRENT_VERSION);
writer.Write(shadingGroupsCount);
// write face groups
foreach (string gID in faceGroupIDs)
{
WFFaceGroup currentGroup = inputObject[gID];
List <float> vertices = new List <float>(); //store all the vertices in this group
for (int fi = 0; fi < currentGroup.FaceCount; fi++) // foreach face
{
WFFace currentFace = currentGroup[fi];
for (int vi = 0; vi < currentFace.VerticesCount; vi++) // foreach vertex
{
int[] indexes = currentFace[vi];
WFVertex vertex = inputObject.Vertices[indexes[0]];
WFNormal normal = inputObject.Normals[indexes[1]];
WFTexCoord texCoord = inputObject.TexCoords[indexes[2]];
vertices.Add(vertex.X);
vertices.Add(vertex.Y);
vertices.Add(vertex.Z);
vertices.Add(normal.Nx);
vertices.Add(normal.Ny);
vertices.Add(normal.Nz);
vertices.Add(texCoord.Tu);
vertices.Add(texCoord.Tv);
}
}
byte[] verticesData = new byte[vertices.Count * sizeof(float)];
System.Buffer.BlockCopy(vertices.ToArray(), 0, verticesData, 0, verticesData.Length);
byte[] gIDbin = System.Text.Encoding.ASCII.GetBytes(gID);
// if no vertices in this group, let's not write it
if (vertices.Count == 0)
{
continue;
}
// write face group header
writer.Write(gIDbin.Length);
writer.Write(gIDbin);
writer.Write(vertices.Count / VERTEX_SIZE_IN_WORDS);
// write veriices data
writer.Write(verticesData);
}
}
