Am 11.12.2014 um 09:55 schrieb Michel Dänzer: > On 11.12.2014 07:49, Roland Scheidegger wrote: >> Odd indeed. Maybe it was really meant for d3d10level9 shaders or >> something (would allow to share more code compiling d3d9 or d3d10 >> shaders that way I guess, you could use all the same instructions and >> just set that bit, and you said newer chips don't have the legacy >> instructions so I guess that bit would help if they still have it). >> d3d10 clearly forbids this (and so does GL 4.1 and up). > > So at the latest when we get GL 4.1, we probably need some TGSI shader > attribute to tell drivers not to enable this kind of clamping? > >
Maybe. In GL, an app _never_ could have relied on that clamping from happening in the first place however (which is why it's surprising a relatively new app would rely on this - I could understand it for something from a time where hw didn't have NaNs). Roland _______________________________________________ mesa-dev mailing list mesa-dev@lists.freedesktop.org http://lists.freedesktop.org/mailman/listinfo/mesa-dev
