public Primitive(Mesh _Owner, FBX.Scene.Nodes.Mesh.Primitive _Primitive)
{
m_Owner = _Owner;
m_MaterialID = (ushort)_Primitive.MaterialParms.ID;
m_Faces = new Face[_Primitive.FacesCount];
m_Vertices = new Vertex[_Primitive.VerticesCount];
// Retrieve streams
FBX.Scene.Nodes.Mesh.Primitive.VertexStream.USAGE[] Usages =
{
FBX.Scene.Nodes.Mesh.Primitive.VertexStream.USAGE.POSITION,
FBX.Scene.Nodes.Mesh.Primitive.VertexStream.USAGE.NORMAL,
FBX.Scene.Nodes.Mesh.Primitive.VertexStream.USAGE.TANGENT,
FBX.Scene.Nodes.Mesh.Primitive.VertexStream.USAGE.BITANGENT,
FBX.Scene.Nodes.Mesh.Primitive.VertexStream.USAGE.TEXCOORDS,
};
FBX.Scene.Nodes.Mesh.Primitive.VertexStream[][] Streams = new FBX.Scene.Nodes.Mesh.Primitive.VertexStream[Usages.Length][];
for (int UsageIndex = 0; UsageIndex < Usages.Length; UsageIndex++)
{
Streams[UsageIndex] = _Primitive.FindStreamsByUsage(Usages[UsageIndex]);
if (Streams[UsageIndex].Length == 0)
{
throw new Exception("No stream for usage " + Usages[UsageIndex] + "! Can't complete target vertex format!");
}
}
// Build local space bounding box
float3 Temp = new float3();
WMath.Vector[] VertexPositions = Streams[0][0].Content as WMath.Vector[];
foreach (WMath.Vector VertexPosition in VertexPositions)
{
Temp.FromVector3(VertexPosition);
m_BBoxMin.Min(Temp);
m_BBoxMax.Max(Temp);
}
// Build faces
int FaceIndex = 0;
foreach (FBX.Scene.Nodes.Mesh.Primitive.Face F in _Primitive.Faces)
{
m_Faces[FaceIndex].V0 = F.V0;
m_Faces[FaceIndex].V1 = F.V1;
m_Faces[FaceIndex].V2 = F.V2;
FaceIndex++;
}
// Build vertices
for (int VertexIndex = 0; VertexIndex < m_Vertices.Length; VertexIndex++)
{
for (int UsageIndex = 0; UsageIndex < Usages.Length; UsageIndex++)
{
FBX.Scene.Nodes.Mesh.Primitive.VertexStream.USAGE Usage = Usages[UsageIndex];
switch (Usage)
{
case FBX.Scene.Nodes.Mesh.Primitive.VertexStream.USAGE.POSITION:
{
float3[] Stream = Streams[UsageIndex][0].Content as float3[];
m_Vertices[VertexIndex].P = Stream[VertexIndex];
break;
}
case FBX.Scene.Nodes.Mesh.Primitive.VertexStream.USAGE.NORMAL:
{
float3[] Stream = Streams[UsageIndex][0].Content as float3[];
m_Vertices[VertexIndex].N = Stream[VertexIndex];
break;
}
case FBX.Scene.Nodes.Mesh.Primitive.VertexStream.USAGE.TANGENT:
{
float3[] Stream = Streams[UsageIndex][0].Content as float3[];
m_Vertices[VertexIndex].G = Stream[VertexIndex];
break;
}
case FBX.Scene.Nodes.Mesh.Primitive.VertexStream.USAGE.BITANGENT:
{
float3[] Stream = Streams[UsageIndex][0].Content as float3[];
m_Vertices[VertexIndex].B = Stream[VertexIndex];
break;
}
case FBX.Scene.Nodes.Mesh.Primitive.VertexStream.USAGE.TEXCOORDS:
{
float2[] Stream = Streams[UsageIndex][0].Content as float2[];
m_Vertices[VertexIndex].T = Stream[VertexIndex];
break;
}
}
}
}
}
public Primitive( Mesh _Owner, FBX.Scene.Nodes.Mesh.Primitive _Primitive )
{
m_Owner = _Owner;
m_MaterialID = (ushort) _Primitive.MaterialParms.ID;
m_Faces = new Face[_Primitive.FacesCount];
m_Vertices = new Vertex[_Primitive.VerticesCount];
// Retrieve streams
FBX.Scene.Nodes.Mesh.Primitive.VertexStream.USAGE[] Usages = {
FBX.Scene.Nodes.Mesh.Primitive.VertexStream.USAGE.POSITION,
FBX.Scene.Nodes.Mesh.Primitive.VertexStream.USAGE.NORMAL,
FBX.Scene.Nodes.Mesh.Primitive.VertexStream.USAGE.TANGENT,
FBX.Scene.Nodes.Mesh.Primitive.VertexStream.USAGE.BITANGENT,
FBX.Scene.Nodes.Mesh.Primitive.VertexStream.USAGE.TEXCOORDS,
};
FBX.Scene.Nodes.Mesh.Primitive.VertexStream[][] Streams = new FBX.Scene.Nodes.Mesh.Primitive.VertexStream[Usages.Length][];
for ( int UsageIndex=0; UsageIndex < Usages.Length; UsageIndex++ )
{
Streams[UsageIndex] = _Primitive.FindStreamsByUsage( Usages[UsageIndex] );
if ( Streams[UsageIndex].Length == 0 )
throw new Exception( "No stream for usage " + Usages[UsageIndex] + "! Can't complete target vertex format!" );
}
// Build local space bounding box
float3 Temp = new float3();
WMath.Vector[] VertexPositions = Streams[0][0].Content as WMath.Vector[];
foreach ( WMath.Vector VertexPosition in VertexPositions ) {
Temp.FromVector3( VertexPosition );
m_BBoxMin.Min( Temp );
m_BBoxMax.Max( Temp );
}
// Build faces
int FaceIndex = 0;
foreach ( FBX.Scene.Nodes.Mesh.Primitive.Face F in _Primitive.Faces )
{
m_Faces[FaceIndex].V0 = F.V0;
m_Faces[FaceIndex].V1 = F.V1;
m_Faces[FaceIndex].V2 = F.V2;
FaceIndex++;
}
// Build vertices
for ( int VertexIndex=0; VertexIndex < m_Vertices.Length; VertexIndex++ )
{
for ( int UsageIndex=0; UsageIndex < Usages.Length; UsageIndex++ )
{
FBX.Scene.Nodes.Mesh.Primitive.VertexStream.USAGE Usage = Usages[UsageIndex];
switch ( Usage )
{
case FBX.Scene.Nodes.Mesh.Primitive.VertexStream.USAGE.POSITION:
{
float3[] Stream = Streams[UsageIndex][0].Content as float3[];
m_Vertices[VertexIndex].P = Stream[VertexIndex];
break;
}
case FBX.Scene.Nodes.Mesh.Primitive.VertexStream.USAGE.NORMAL:
{
float3[] Stream = Streams[UsageIndex][0].Content as float3[];
m_Vertices[VertexIndex].N = Stream[VertexIndex];
break;
}
case FBX.Scene.Nodes.Mesh.Primitive.VertexStream.USAGE.TANGENT:
{
float3[] Stream = Streams[UsageIndex][0].Content as float3[];
m_Vertices[VertexIndex].G = Stream[VertexIndex];
break;
}
case FBX.Scene.Nodes.Mesh.Primitive.VertexStream.USAGE.BITANGENT:
{
float3[] Stream = Streams[UsageIndex][0].Content as float3[];
m_Vertices[VertexIndex].B = Stream[VertexIndex];
break;
}
case FBX.Scene.Nodes.Mesh.Primitive.VertexStream.USAGE.TEXCOORDS:
{
float2[] Stream = Streams[UsageIndex][0].Content as float2[];
m_Vertices[VertexIndex].T = Stream[VertexIndex];
break;
}
}
}
}
}
