Bug 49295

Summary:	[NV50 gallium] artifacts in prboom on NV86
Product:	Mesa	Reporter:	Sven Joachim <svenjoac>
Component:	Drivers/DRI/nouveau	Assignee:	Nouveau Project <nouveau>
Status:	RESOLVED MOVED	QA Contact:
Severity:	normal
Priority:	medium
Version:	git
Hardware:	x86 (IA32)
OS:	Linux (All)
Whiteboard:
i915 platform:		i915 features:
Attachments:	Doom 1, Episode 1, Map 4 under prboom 2.5.0

Description Sven Joachim 2012-04-30 01:27:48 UTC

Created attachment 60784 [details]
Doom 1, Episode 1, Map 4 under prboom 2.5.0

Under prboom 2.5.0 with OpenGL renderer, I'm seeing bad artifacts:

- Walls are very bright, sometimes transparent.  In some cases,
  the texture disappears completely and is replaced by a solid color.

- A "hall of mirrors effect" as described in http://doomwiki.org/wiki/Hall_of_mirrors_effect.

I'm attaching a screenshot from Doom 1, Episode 1, Map 4 shortly after the start.

There are no error messages in the kernel logs, and other 3D games (including doomsday, another Doom source port) are unaffected.


Hardware is a GeForce 8500 GT, software stack as follows:

Mesa from git commit 4c15a77f27
Kernel 3.4.0-rc5
Libdrm from git commit 754655c795
Nouveau DDX from git commit 174f170720

Comment 1 Ilia Mirkin 2013-08-25 17:39:47 UTC

Please retest with the latest mesa.

Comment 2 Sven Joachim 2013-08-25 18:49:50 UTC

Still present in Mesa 9.3.0-devel as of commit b5ddaf9975.

Comment 3 Ilia Mirkin 2013-08-25 18:57:33 UTC

Could you create an apitrace of the problem? https://github.com/apitrace/apitrace

I installed prboom, but it requires the wad files I guess.

Would be good to make sure that when you replay the apitrace, you see the same artifacts too.

Comment 4 Martin Peres 2013-08-25 19:13:11 UTC

(In reply to comment #3)
> Could you create an apitrace of the problem?
> https://github.com/apitrace/apitrace
> 
> I installed prboom, but it requires the wad files I guess.
> 
> Would be good to make sure that when you replay the apitrace, you see the
> same artifacts too.

Please limit the trace to a single frame, and send it to a non-public server.

Comment 5 Ilia Mirkin 2015-10-22 08:55:19 UTC

Please retest with mesa 11.0.3, and attach an apitrace if the issue persists.

Comment 6 GitLab Migration User 2019-09-18 20:38:07 UTC

-- GitLab Migration Automatic Message --

This bug has been migrated to freedesktop.org's GitLab instance and has been closed from further activity.

You can subscribe and participate further through the new bug through this link to our GitLab instance: https://gitlab.freedesktop.org/mesa/mesa/issues/1049.

Use of freedesktop.org services, including Bugzilla, is subject to our Code of Conduct. How we collect and use information is described in our Privacy Policy.