On 26.07.2006 14:31, H. Verbeet wrote: >> However, you do know the register into which the output position will be >> written by the VP. Could flipping the Y of the output position at the >> very end of the VP work? >> > Well, you can't really do that, since it's not guaranteed the mvp > matrix will only be used for position transformations. A shader could > use it for eg. lighting calculations.
I thought more along the lines of "flip result.position.y", not changing the MVP matrix. -f.r.
