static public unsafe void swzzlGrnyVertsToD3DVerts(byte[] grnyVerts, VertexDeclaration grnyVD, int vertMemSize, int numVerts,
ref byte[] d3dVerts, VertexDeclaration d3dVD)
{
//loop through all the verts and swizzle them to be FVF friendly for d3d
VertexElement[] grnVE = grnyVD.GetDeclaration();
VertexElement[] d3dVE = d3dVD.GetDeclaration();
for (int j = 0; j < grnVE.Length; j++)
{
VertexElement ve = grnVE[j];
for (int k = 0; k < d3dVE.Length; k++)
{
VertexElement dstVE = d3dVE[k];
if (dstVE.DeclarationUsage == ve.DeclarationUsage)
{
int count = sizeof(float) * 3;
if (ve.DeclarationType == DeclarationType.Float3)
{
count = sizeof(float) * 3;
}
if (ve.DeclarationType == DeclarationType.Float2)
{
count = sizeof(float) * 2;
}
if (ve.DeclarationType == DeclarationType.Float1)
{
count = sizeof(float) * 1;
}
if (ve.DeclarationType == DeclarationType.Color)
{
count = sizeof(int);
}
if (ve.DeclarationType == DeclarationType.Ubyte4N)
{
count = sizeof(int);
}
for (int i = 0; i < numVerts; i++)
{
int srcInd = (i * vertMemSize) + ve.Offset;
int dstInd = (i * vertMemSize) + dstVE.Offset;
for (int q = 0; q < count; q++)
{
d3dVerts[dstInd + q] = grnyVerts[srcInd + q];
}
}
k = d3dVE.Length + 1;;
}
}
}
}
