On Wed, Dec 19, 2018, 3:32 PM Eric Anholt <e...@anholt.net wrote: > Jonathan marek <jonat...@marek.ca> writes: > > > Hi, > > > > I didn't verify it, but both r600 and a3xx disable earlyZ when alpha > > test is enabled, so this is almost certainly right. > > > > We don't need to worry about the shader writing Z, it is not part of > > OpenGL ES 2.0 and not implemented by the driver (although the hardware > > should allow it). > > > > Why should we need to check if the shader does discards? > > On a lot of hardware, early Z also does the depth write at that time. I > see a3xx disables EZ when discards are present. (There is a piglit test > for this) >
Yes, kill/discard disables early Z/S. Marek _______________________________________________ > mesa-dev mailing list > mesa-dev@lists.freedesktop.org > https://lists.freedesktop.org/mailman/listinfo/mesa-dev >
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