hiho,
i encountered the following problem with Live For Speed [1]: once i setup my car and choose a color for it red and blue are swaped. also i got a FIXME there from: dlls/d3d8/vshaderdeclaration.c:675 (the case for D3DVSDT_D3DCOLOR).
so i tried various things to put data in the hardware, but none worked - most of the time the car/game had simply extreme strange colors. so my approach (the obvious: get data from curPos, honouring skip and put it in my own 4 byte array, then call the glVertexAttribPointerARB with my array and skip=0) does not work at all - especially because i really dont have any clue about vertex shading at all, i guess.
my assumtion: opengl takes for the 4 bytes RGBA->XYZW and D3DCOLOR is BGRA->XYZW (thats also what the software branch of this method wants).
any ideas?