Entity ProcessObjectChunk(ThreeDSChunk chunk, Entity e)
{
while (chunk.BytesRead < chunk.Length)
{
ThreeDSChunk child = new ThreeDSChunk(this, reader);
#if LOG_CHUNKS
Logger.Log("ProcessObjectChunk: chunk = {0:X}, len = {1}", child.ID, chunk.Length);
#endif
switch (child.ID)
{
case Groups.C_OBJECT_MESH:
ProcessObjectChunk(child, e);
break;
case Groups.C_OBJECT_VERTICES:
e.vertices = ReadVertices(child);
break;
case Groups.C_OBJECT_FACES:
e.triangles = ReadTriangles(child);
#if LOG_FACES
Logger.Log("Object Faces: {0}", e.indices.Length);
#endif
if (child.BytesRead < child.Length)
{
ProcessFaceChunk(child, e);
}
break;
case Groups.C_OBJECT_UV:
int cnt = reader.ReadUInt16();
child.BytesRead += 2;
//Console.WriteLine ( " TexCoords: {0}", cnt );
e.texcoords = new TexCoord [cnt];
for (int ii = 0; ii < cnt; ii++)
{
e.texcoords [ii] = new TexCoord(reader.ReadSingle(), reader.ReadSingle());
}
child.BytesRead += (cnt * (4 * 2));
break;
default:
SkipChunk(child);
break;
}
chunk.BytesRead += child.BytesRead;
child.SkipToEnd(reader);
//Console.WriteLine ( " ID: {0} Length: {1} Read: {2}", chunk.ID.ToString("x"), chunk.Length , chunk.BytesRead );
}
return(e);
}
float[] ProcessColorChunk(ThreeDSChunk chunk)
{
ThreeDSChunk child = new ThreeDSChunk(this, reader);
float red = 1.0f;
float green = 1.0f;
float blue = 1.0f;
switch (child.ID)
{
// Each color component is represented by a single-precision floating point number.
case Groups.C_COLOR_F:
red = reader.ReadSingle();
green = reader.ReadSingle();
blue = reader.ReadSingle();
break;
// Each color component is represented by a byte.
case Groups.C_COLOR_24:
red = (float)reader.ReadByte() / 255.0f;
green = (float)reader.ReadByte() / 255.0f;
blue = (float)reader.ReadByte() / 255.0f;
break;
}
// Logger.Log("ProcessColorChunk: color = ({0},{1},{2}) len = {3}", red, green, blue, child.Length);
chunk.BytesRead += (int)child.Length;
child.SkipToEnd(reader);
return(new float[] { red, green, blue });
}
Entity ProcessFaceChunk(ThreeDSChunk chunk, Entity e)
{
while (chunk.BytesRead < chunk.Length)
{
ThreeDSChunk child = new ThreeDSChunk(this, reader);
#if LOG_CHUNKS
Logger.Log("ProcessFaceChunk: chunk = {0:X}, len = {1}", child.ID, chunk.Length);
#endif
switch (child.ID)
{
case Groups.C_OBJECT_MATERIAL:
string materialName = ProcessString(child);
#if LOG_FACES
Logger.Log("Uses Material: {0}", materialName);
#endif
Material material = null;
if (materials.TryGetValue(materialName, out material))
{
e.material = material;
}
#if LOG_MATERIAL
else
{
Logger.Log(" Warning: Material '{0}' not found. ", materialName);
}
#endif
//Console.WriteLine(" Warning: Material '{0}' not found. ", name2);
//throw new Exception ( "Material not found!" );
int nfaces = reader.ReadUInt16();
child.BytesRead += 2;
#if LOG_FACES
Logger.Log("ProcessFaceChunk: {0} material faces", nfaces);
#endif
for (int i = 0; i < nfaces; i++)
{
int faceIndex = reader.ReadUInt16();
e.triangles[faceIndex].material = (material ?? Triangle.defaultMaterial);
child.BytesRead += 2;
}
SkipChunk(child);
break;
default:
SkipChunk(child);
break;
}
chunk.BytesRead += child.BytesRead;
child.SkipToEnd(reader);
//Console.WriteLine ( " ID: {0} Length: {1} Read: {2}", chunk.ID.ToString("x"), chunk.Length , chunk.BytesRead );
}
return(e);
}
int ProcessPercentageChunk(ThreeDSChunk chunk)
{
ThreeDSChunk child = new ThreeDSChunk(this, reader);
int per = reader.ReadUInt16();
child.BytesRead += 2;
chunk.BytesRead += child.BytesRead;
child.SkipToEnd(reader);
return(per);
}
void ProcessTexMapChunk(ThreeDSChunk chunk, Material m)
{
while (chunk.BytesRead < chunk.Length)
{
ThreeDSChunk child = new ThreeDSChunk(this, reader);
switch (child.ID)
{
case Groups.C_MATMAPFILE:
string name = ProcessString(child);
#if LOG_MATERIAL
Logger.Log("Material texture map: {0}", name);
#endif
//Console.WriteLine ( " Texture File: {0}", name );
// use System.Drawing to try and load this image
/*
* //FileStream fStream;
* Bitmap bmp;
* try
* {
* //fStream = new FileStream(base_dir + name, FileMode.Open, FileAccess.Read);
* bmp = new Bitmap ( base_dir + name );
* }
* catch ( Exception ex )
* {
* // couldn't find the file
* Console.WriteLine ( " ERROR: could not load file '{0}': {1}", base_dir + name, ex.Message );
* break;
* }
*
* // Flip image (needed so texture is the correct way around!)
* bmp.RotateFlip(RotateFlipType.RotateNoneFlipY);
*
* System.Drawing.Imaging.BitmapData imgData = bmp.LockBits ( new Rectangle(new Point(0, 0), bmp.Size),
* System.Drawing.Imaging.ImageLockMode.ReadOnly,
* System.Drawing.Imaging.PixelFormat.Format32bppArgb);
* // System.Drawing.Imaging.PixelFormat.Format24bppRgb );
*
* m.BindTexture ( imgData.Width, imgData.Height, imgData.Scan0 );
*
* bmp.UnlockBits(imgData);
* bmp.Dispose();
*/
/*
* BinaryReader br = new BinaryReader(fStream);
*
* br.ReadBytes ( 14 ); // skip file header
*
* uint offset = br.ReadUInt32 ( );
* //br.ReadBytes ( 4 ); // skip image header
* uint biWidth = br.ReadUInt32 ();
* uint biHeight = br.ReadUInt32 ();
* Console.WriteLine ( "w {0} h {1}", biWidth, biHeight );
* br.ReadBytes ( (int) offset - 12 ); // skip rest of image header
*
* byte[,,] tex = new byte [ biHeight , biWidth , 4 ];
*
* for ( int ii=0 ; ii < biHeight ; ii++ )
* {
* for ( int jj=0 ; jj < biWidth ; jj++ )
* {
* tex [ ii, jj, 0 ] = br.ReadByte();
* tex [ ii, jj, 1 ] = br.ReadByte();
* tex [ ii, jj, 2 ] = br.ReadByte();
* tex [ ii, jj, 3 ] = 255;
* //Console.Write ( ii + " " );
* }
* }
*
* br.Close();
* fStream.Close();
* m.BindTexture ( (int) biWidth, (int) biHeight, tex );
*/
break;
default:
SkipChunk(child);
break;
}
chunk.BytesRead += child.BytesRead;
child.SkipToEnd(reader);
}
}
void ProcessMaterialChunk(ThreeDSChunk chunk)
{
string name = string.Empty;
Material m = new Material();
while (chunk.BytesRead < chunk.Length)
{
ThreeDSChunk child = new ThreeDSChunk(this, reader);
#if LOG_CHUNKS
Logger.Log("ProcessMaterialChunk: chunk = {0:X}, len = {1}", child.ID, chunk.Length);
#endif
switch (child.ID)
{
case Groups.C_MATNAME:
name = ProcessString(child);
#if LOG_MATERIAL
Logger.Log("Material name: {0}", name);
#endif
break;
case Groups.C_MATAMBIENT:
m.Ambient = ProcessColorChunk(child);
#if LOG_MATERIAL
Logger.Log("Material ambient color: ({0},{1},{2})", m.Ambient[0], m.Ambient[1], m.Ambient[2]);
#endif
break;
case Groups.C_MATDIFFUSE:
m.Diffuse = ProcessColorChunk(child);
#if LOG_MATERIAL
Logger.Log("Material diffuse color: ({0},{1},{2})", m.Diffuse[0], m.Diffuse[1], m.Diffuse[2]);
#endif
break;
case Groups.C_MATSPECULAR:
m.Specular = ProcessColorChunk(child);
#if LOG_MATERIAL
Logger.Log("Material specular color: ({0},{1},{2})", m.Specular[0], m.Specular[1], m.Specular[2]);
#endif
break;
case Groups.C_MATSHININESS:
m.Shininess = ProcessPercentageChunk(child);
#if LOG_MATERIAL
Logger.Log("Material shininess: {0}", m.Shininess);
#endif
break;
case Groups.C_MATMAP:
ProcessPercentageChunk(child);
ProcessTexMapChunk(child, m);
break;
default:
SkipChunk(child);
break;
}
chunk.BytesRead += child.BytesRead;
child.SkipToEnd(reader);
}
// Don't add materials with duplicate names
if (!materials.ContainsKey(name))
{
materials.Add(name, m);
}
}
void ProcessChunk(ThreeDSChunk chunk)
{
// process chunks until there are none left
while (chunk.BytesRead < chunk.Length)
{
// grab a chunk
ThreeDSChunk child = new ThreeDSChunk(this, reader);
#if LOG_CHUNKS
Logger.Log("ProcessChunk: chunk = {0:X}, len = {1}", child.ID, chunk.Length);
#endif
// process based on ID
switch (child.ID)
{
case Groups.C_VERSION:
version = reader.ReadInt32();
child.BytesRead += 4;
break;
case Groups.C_OBJECTINFO:
ThreeDSChunk obj_chunk = new ThreeDSChunk(this, reader);
// not sure whats up with this chunk
SkipChunk(obj_chunk);
child.BytesRead += obj_chunk.BytesRead;
ProcessChunk(child);
break;
case Groups.C_MATERIAL:
ProcessMaterialChunk(child);
break;
case Groups.C_OBJECT:
// string name =
ProcessString(child);
Entity e = ProcessObjectChunk(child);
if (e.vertices != null && e.triangles != null)
{
e.CalculateNormals();
model.Entities.Add(e);
}
break;
default:
SkipChunk(child);
break;
}
chunk.BytesRead += child.BytesRead;
// Don't skip to the end of certain chunks, as they contain the entire file/model.
if (child.ID != Groups.C_VERSION)
{
// Skip to the end of this chunk.
child.SkipToEnd(reader);
}
//Console.WriteLine ( "ID: {0} Length: {1} Read: {2}", chunk.ID.ToString("x"), chunk.Length , chunk.BytesRead );
}
}
