From: bugzilla-daemon@freedesktop.org
To: dri-devel@lists.freedesktop.org
Subject: [Bug 103544] Graphical glitches r600 in game this war of mine linux native
Date: Sat, 04 Nov 2017 14:34:13 +0000 [thread overview]
Message-ID: <bug-103544-502-piu0iALpSB@http.bugs.freedesktop.org/> (raw)
In-Reply-To: <bug-103544-502@http.bugs.freedesktop.org/>
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https://bugs.freedesktop.org/show_bug.cgi?id=103544
--- Comment #8 from Ilia Mirkin <imirkin@alum.mit.edu> ---
(In reply to Roland Scheidegger from comment #7)
> I guess though the question is why other mesa drivers render it correctly
> and how they avoid the NaNs if they also use ieee conformant behavior (if
> they actually render it correctly...).
If you can get me a trace, I can have a look to see what happens with nouveau.
There's additional implications from having NaN's in RT outputs, i.e. what
happens in blending functions. I believe that nouveau configures the GPU for
the "zero wins" style of multiplication in the blending unit. And separately,
same thing for color clamps (I believe NVIDIA hw maps NaN -> 0 unconditionally
for that case).
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next prev parent reply other threads:[~2017-11-04 14:34 UTC|newest]
Thread overview: 17+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-11-02 12:39 [Bug 103544] Graphical glitches r600 in game this war of mine linux native bugzilla-daemon
2017-11-02 13:27 ` bugzilla-daemon
2017-11-02 13:36 ` bugzilla-daemon
2017-11-02 14:01 ` bugzilla-daemon
2017-11-03 15:48 ` bugzilla-daemon
2017-11-04 2:48 ` bugzilla-daemon
2017-11-04 3:21 ` bugzilla-daemon
2017-11-04 6:00 ` bugzilla-daemon
2017-11-04 14:34 ` bugzilla-daemon [this message]
2017-11-04 14:49 ` bugzilla-daemon
2017-11-06 4:52 ` bugzilla-daemon
2017-11-06 20:33 ` bugzilla-daemon
2017-11-06 21:14 ` bugzilla-daemon
2017-11-07 19:20 ` bugzilla-daemon
2017-11-08 0:25 ` bugzilla-daemon
2017-11-08 0:36 ` bugzilla-daemon
2017-11-15 2:22 ` bugzilla-daemon
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