Bug 60552 - [r300g] Carvisualizer webgl demo: black flickering spots over the car
Summary: [r300g] Carvisualizer webgl demo: black flickering spots over the car
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...
Depends on:
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:

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

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

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
Mesa: 0e2f26d5ea26febd16173aa8bbf7427b090e320f
Kernel: 3.7.3-101.fc17.i686
Comment 1 Pavel Ondračka 2013-02-09 17:48:08 UTC
Created attachment 74498 [details]
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 --

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