private static ThreeDSMesh.UV[] ParseTexVerts(DataReader3DS subSegment)
{
ThreeDSMesh.UV[] uv = new ThreeDSMesh.UV[subSegment.GetUShort()];
for (int coord = 0; coord < uv.Length; coord++)
{
uv[coord].u = subSegment.GetFloat();
uv[coord].v = subSegment.GetFloat();
}
return(uv);
}
private static ThreeDSMesh ParsePolygonalData(DataReader3DS dataSegment)
{
DataReader3DS subSegment = dataSegment.GetNextSubSegment(); // working data subsegment
ThreeDSMesh mesh = new ThreeDSMesh();
while (subSegment != null)
{
switch ((ChunkCodes)subSegment.Tag)
{
case ChunkCodes.MESH_VERTICES: // Subsegment contains vertex information
mesh.verticies = new ThreeDSMesh.Vertex[subSegment.GetUShort()];
for (int vertex = 0; vertex < mesh.verticies.Length; vertex++)
{
mesh.verticies[vertex].x = subSegment.GetFloat();
mesh.verticies[vertex].y = subSegment.GetFloat();
mesh.verticies[vertex].z = subSegment.GetFloat();
}
break;
case ChunkCodes.MESH_XFMATRIX: // Subsegment contains translation matrix info (ignore for now)
break;
case ChunkCodes.MESH_FACES: // Subsegment contains face information
mesh.groups.Add(ParseFaceData(subSegment));
break;
case ChunkCodes.MESH_TEX_VERT: // Subsegment contains texture mapping information
mesh.uvMap = ParseTexVerts(subSegment);
break;
}
subSegment = dataSegment.GetNextSubSegment();
}
// Also use face data to calculate vertex normals
CalculateVertexNormals(mesh);
return(mesh);
}
private static ThreeDSMesh.Colour ParseColorData(DataReader3DS dataSegment)
{
ThreeDSMesh.Colour clr = new ThreeDSMesh.Colour();
switch ((ChunkCodes)dataSegment.Tag)
{
case ChunkCodes.COLOR_F: // Color is in float format
clr.r = (byte)(1.0f / dataSegment.GetFloat());
clr.g = (byte)(1.0f / dataSegment.GetFloat());
clr.b = (byte)(1.0f / dataSegment.GetFloat());
break;
case ChunkCodes.COLOR_24: // Color is in byte format
clr.r = dataSegment.GetByte();
clr.g = dataSegment.GetByte();
clr.b = dataSegment.GetByte();
break;
default: // If there are any other formats, then we ignore them
break;
}
return(clr);
}
private static ThreeDSMesh.Colour ParseColorData(DataReader3DS dataSegment)
{
ThreeDSMesh.Colour clr = new ThreeDSMesh.Colour();
switch ((ChunkCodes)dataSegment.Tag)
{
case ChunkCodes.COLOR_F: // Color is in float format
clr.r = (byte)(1.0f / dataSegment.GetFloat());
clr.g = (byte)(1.0f / dataSegment.GetFloat());
clr.b = (byte)(1.0f / dataSegment.GetFloat());
break;
case ChunkCodes.COLOR_24: // Color is in byte format
clr.r = dataSegment.GetByte();
clr.g = dataSegment.GetByte();
clr.b = dataSegment.GetByte();
break;
default: // If there are any other formats, then we ignore them
break;
}
return clr;
}
private static ThreeDSMesh.UV[] ParseTexVerts(DataReader3DS subSegment)
{
ThreeDSMesh.UV[] uv = new ThreeDSMesh.UV[subSegment.GetUShort()];
for (int coord = 0; coord < uv.Length; coord++)
{
uv[coord].u = subSegment.GetFloat();
uv[coord].v = subSegment.GetFloat();
}
return uv;
}