Top & bottom of the texture coordinates are already flipped for BottomToTop scanline directions.
So there is no need to flip top & bottom of the vertex coordinates too.
Change-Id: I221b94afb65c194bdedb787414e6a436b8095fb2
Reviewed-by: Thomas McGuire <thomas.mcguire@kdab.com>
Reviewed-by: Dmytro Poplavskiy <dmytro.poplavskiy@gmail.com>