Something

as per-http://msdn.microsoft.com/archive/en-us/dx8_c/directx_cpp/images/fvfmem.gifstruct SVertexFormatOffsets{    u32 Size;    bool HasTcoord0;    u32 TCOORD0Offset;    bool HasTcoord1;    u32 TCOORD1Offset;    bool HasTcoord2;    u32 TCOORD2Offset;    bool HasTcoord3;    u32 TCOORD3Offset;    bool HasTcoord4;    u32 TCOORD4Offset;    bool HasPosition;    u32 PositionOffset;    bool HasNormal;    u32 NormalOffset;    bool HasSpecular;    u32 ColorOffset; // etc}class CVertexList, public IVertexList{    vector3df& getNormal(u32 idx) { return *((vector3df*)((format.size*idx) + offsets.Normal)); }}// BlindSides idea:enum E_VERTEX_PARAM_TYPE{TCOORDS1,TCOORDS2,TCOORDS3,TCOORDS4,NORMAL,POSITION,COLOR,EVRT_COUNT};struct VertexParam{  E_VERTEX_PARAM_TYPE type;  u32 offset;};struct VertexType{  array<VertexParam> params;};struct DerivedVertexType : public VertexType{DerivedVertexType(){   VertexParam tcoords1 = {TCOORDS1,12};   params.push_back(tcoords1);}};