https://bugs.freedesktop.org/show_bug.cgi?id=57875
--- Comment #19 from Stefan Dösinger stefandoesinger@gmx.at --- Are there any comments on the 2nd extension spec? If it looks good to you I'll do some tests with the r200 and r500 GPUs I have to see how unclipped Z values behave in fragment processing to make sure the extension doesn't guarantee anything the HW cannot provide.