Bug 110861 - The Witcher 3: blocky shadow artifacts on distant objects
Summary: The Witcher 3: blocky shadow artifacts on distant objects
Status: RESOLVED FIXED
Alias: None
Product: Mesa
Classification: Unclassified
Component: Drivers/Vulkan/radeon (show other bugs)
Version: git
Hardware: x86-64 (AMD64) Linux (All)
: medium normal
Assignee: mesa-dev
QA Contact: mesa-dev
URL:
Whiteboard:
Keywords:
Depends on:
Blocks:
 
Reported: 2019-06-08 18:05 UTC by tempel.julian
Modified: 2019-06-09 10:40 UTC (History)
0 users

See Also:
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Attachments

Description tempel.julian 2019-06-08 18:05:31 UTC 
There are blocky shadow artifacts on distant objects:
https://abload.de/img/tw3lyk3t.png

I think this is a regression in either radv or llvm, as I can't recall seeing these artifacts the last time I tested with radv.
Funny: amdvlk had a similar (or even the very same?) issue and it got fixed with its latest update.

mesa-git  19.2.0_devel.111569.22025595f3f
llvm-libs-git  9.0.0_r318186.669775f9db7
Comment 1 tele42k3 2019-06-09 00:51:39 UTC 
Hi, this looks like #110811 (https://bugs.freedesktop.org/show_bug.cgi?id=110811), please retest with mesa built against LLVM r362749 or newer.
Comment 2 tempel.julian 2019-06-09 10:40:20 UTC 
Indeed, thanks for letting me know. Performance btw. is still almost 10% better than with amdvlk.

I wonder if this also fixes this bug, should check it out again:
https://bugs.freedesktop.org/show_bug.cgi?id=110662

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