Bug 110476

Summary:	Overwatch - some objects are rendered incorrectly
Product:	Mesa	Reporter:	Danylo <danylo.piliaiev>
Component:	Drivers/Vulkan/radeon	Assignee:	mesa-dev
Status:	RESOLVED FIXED	QA Contact:	mesa-dev
Severity:	normal
Priority:	medium	CC:	danylo.piliaiev
Version:	git
Hardware:	Other
OS:	Linux (All)
Whiteboard:
i915 platform:		i915 features:
Attachments:	bad rendering example

Description Danylo 2019-04-20 17:45:53 UTC

Created attachment 144051 [details]
bad rendering example

After some Overwatch update some objects are rendered incorrectly - when moving camera it looks like part of current/previous frame are in their place.

Easily seen with palms in the "Loot Box" menu.

 GPU: R9 380X, initially as found by other user with 580
 Driver: Mesa 19.0.0 - 19.1.0-devel (git-f9c594cdf5), LLVM 9.0.0
 Wine version: 4.6
 DXVK version: 0.80 - 1.0.3

Didn't test llvm 8, didn't test mesa below 19.0.0

Renderdoc capture: https://mega.nz/#!VQdzwATa!1fvb5PtQHcPzZpMFz3UzYzq_Le_60uthJ8E8Mq_b9Ls

There is a reason to believe that there is no such issue with LLVM8 since it is reported that it renders correctly with RX580, LLVM8 and mesa 19.0.2

Probably not a DXVK issue but here is an issue filed there: https://github.com/doitsujin/dxvk/issues/1022

Comment 1 Samuel Pitoiset 2019-04-21 18:07:08 UTC

I can reproduce the issue, I will investigate.
Thanks for the report!

Comment 2 Samuel Pitoiset 2019-04-21 19:56:36 UTC

LLVM r356956 introduced the regression. I reported the problem to the compiler team. I will let you know when it's fixed.

Comment 3 Danylo 2019-04-21 20:07:57 UTC

Great, thank you.

Comment 4 Samuel Pitoiset 2019-04-23 06:55:41 UTC

Fixed with LLVM r358890.

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