Bug 60552 - [r300g] Carvisualizer webgl demo: black flickering spots over the car
Summary: [r300g] Carvisualizer webgl demo: black flickering spots over the car
Status: RESOLVED MOVED
Alias: None
Product: Mesa
Classification: Unclassified
Component: Drivers/Gallium/r300 (show other bugs)
Version: git
Hardware: Other All
: medium normal
Assignee: Default DRI bug account
QA Contact:
URL: http://carvisualizer.plus360degrees.c...
Whiteboard:
Keywords:
Depends on:
Blocks:
 
Reported: 2013-02-09 17:47 UTC by Pavel Ondračka
Modified: 2019-09-18 18:51 UTC (History)
0 users

See Also:
i915 platform:
i915 features:

Attachments
screenshot (85.82 KB, image/jpeg)
2013-02-09 17:47 UTC, Pavel Ondračka 		Details
RADEON_DEBUG=fp log (126.60 KB, text/plain)
2013-02-09 17:48 UTC, Pavel Ondračka 		Details
View All

Description Pavel Ondračka 2013-02-09 17:47:28 UTC 
Created attachment 74497 [details]
screenshot

In the Car Visualizer Webgl demo, there are some flickering black spots on the car. This is probably a bug in the shader compiler, as RADEON_DEBUG=noopt works around this. Specifically its the register_rename pass that causes this, when it is disabled in r3xx_fragprog.c, everything is fine. Also when I disable only the dataflow optimize pass, there is still some flickering but much less.

Firefox 18.0
GPU:RV530
Mesa: 0e2f26d5ea26febd16173aa8bbf7427b090e320f
Kernel: 3.7.3-101.fc17.i686
Comment 1 Pavel Ondračka 2013-02-09 17:48:08 UTC 
Created attachment 74498 [details]
RADEON_DEBUG=fp log
Comment 2 Tom Stellard 2013-02-10 05:21:12 UTC 
Do you have a link to this demo?
Comment 3 Pavel Ondračka 2013-02-10 10:42:00 UTC 
(In reply to comment #2)
> Do you have a link to this demo?

Link is in the URL field ;-) http://carvisualizer.plus360degrees.com/threejs/
Comment 4 GitLab Migration User 2019-09-18 18:51:40 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/350.

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.