| Microsoft DirectX 8.1 (Visual Basic) | 
Defines vertex processing capabilities.
Enum CONST_D3DVTXPCAPSFLAGS
    D3DVTXPCAPS_TEXGEN            =  1
    D3DVTXPCAPS_MATERIALSOURCE7   =  2
    D3DVTXPCAPS_DIRECTIONALLIGHTS =  8
    D3DVTXPCAPS_POSITIONALLIGHTS  = 16 (&H10)
    D3DVTXPCAPS_LOCALVIEWER       = 32 (&H20)
    D3DVTXPCAPS_TWEENING          = 64 (&H40)
End Enum
These flags can be combined and present in the VertexProcessingCaps member of D3DCAPS8.