We don't use GL extensions when they aren't around. Perhaps there is a small check which fails for FBOs. Backbuffer should work fine but a lot more changes have been made in .23 and those are which cause the zbuffer error.
Roderick On Sat, Jun 6, 2009 at 4:58 PM, Milan Kostić<[email protected]> wrote: > Deafulting to fbo is good, but it should be more good to leave also > prior working support for backbuffer on older cards who not have > EXT_framebuffer_object. Reverting to > "OffscreenRenderingMode"="backbuffer" is not working as expected for > me on r200 Mesa/DRI drivers, for example in Max Payne 2 which now > can't be even starting with backbuffer, Rayman 2 and Dungen Siege 2 > also. In 1.1.22>= they worked. > > > >
