http://bugs.winehq.org/show_bug.cgi?id=10992
--- Comment #29 from Stefan Dösinger stefandoesinger@gmx.at 2008-03-05 10:05:57 --- In that case the bug must be somewhere in ddraw's/wined3d's FVF->vertex declaration conversion, as D3D7 only supports D3DCOLOR colors. It doesn't offer any way to use SHORT4 attribs or similar.
See IDirect3DDevice7::SetFVF in dlls/ddraw/device.c. It calls a WineD3D helper function to create a wined3d vertex declaration that matches the FVF