The Witcher 3 shadows flickering on ANV
This is most likely a bug in ANV since the shadows render correctly on everything else. You might consider opening a Mesa bug.
Thank you for your quick response.
This is the Mesa bug: https://bugs.freedesktop.org/show_bug.cgi?id=109404
Issue is likely an invalid 1-bit boolean optimization. (and a patch is attached)
But now there is another issue: some polygons flicker, this allows you to sometimes see through cave walls and/or roofs for a single frame. Or some rocks in grass disappear for a frame.
(as issues go, it is far less immersion breaking, just some distracting flashes every now and then)
Here is a video to show the flickering I'm talking about: https://drive.google.com/file/d/1Y8TBaMtc-dP4N-GRuHcR3OZzx9JaiODg/view
It is particularly prevalent at this cave entrance.
@doitsujin Is this also a Mesa driver issue?
I've never seen this before, can you share a save?
Sure, here is the save right by that cave: https://drive.google.com/open?id=1kH7NlgW1MehWTNdR8J30t3injFfAthHr
@grigi I'm the one who investigated the original issue - I hope it will be resolved soon (I'll probably involve someone more knowledgeable in that code).
About the cave - could you also show on map where is it? I'll take a look at it on Monday.
Hi @werman right here, just east of the "Crossroads" signpost.
And once again, thanks for your work :-)
@grigi I have checked the cave and I didn't see such flickering, I have check with latest mesa master and with 18.3.1
I'm using Proton 3.16-6 Beta. And Intel HD Graphics 620.
If it's reproducible it would be great if you can provide apitrace.
I haven't managed to get time yet. Will get to it as soon as I can.
I finally saw that flickering with DXVK and with wined3d in that cave, it's just too random and didn't want to happen while I was in motion.
I captured it with apitrace however flickering seems to be random even in it.
There is repeating:
INTEL-MESA: error: ../src/intel/vulkan/anv_descriptor_set.c:549: VK_ERROR_OUT_OF_POOL_MEMORY
in logs but I don't think it's relevant.
@doitsujin Small feedback about capturing traces:
In "Common-issues" it is advised to put certain DLLs near the game executable, in issue creation template it is said:
wine apitrace.exe trace -a dxgi YOURGAME.exe DO NOT use DXVK together with apitrace!
Ugh, I got confused and ended up editing Proton 3.16 Beta/proton making something like this:
run_wine([wine_path] + ["/path_to_apitrace/apitrace.exe", "trace", "-a", "dxgi"] + sys.argv[2:])
And apitrace crashed with wined3d but work nicely with DXVK.
I'm just trying to say that tracing probably need more explanation.
Thanks!
@werman yeah, tracing is tricky and which way works or is useful varies from case to case. I'll see if I can update the wiki and issue template accordingly.
Regarding the Vulkan error:
INTEL-MESA: error: ../src/intel/vulkan/anv_descriptor_set.c:549:
VK_ERROR_OUT_OF_POOL_MEMORY
DXVK uses this error return to determine when to create a new descriptor pool, so this is normal behaviour.
Just for an FYI, I built the latest Mesa git.
At first I thought the flickering has gone away, but the longer I played the worse the flickering got.
@werman Should I create a new issue on freedesktop.org to track the mesh flickering issue? Do you need anything from me that will help?
Yes, please create one. You can add apitrace with the flickering.
And unfortunately this flickering is random even in apitrace so I wasn't able to quickly find the cause.
@werman I created the issue here: https://bugs.freedesktop.org/show_bug.cgi?id=109616
Could you please attach the apitrace you did to the issue?
@grigi Yes, I'll add it tomorrow.
Mesa bug https://bugs.freedesktop.org/show_bug.cgi?id=109404 has been fixed and merged to master and eligible for backport to stable.
I'm keeping this open for the related mesa bug https://bugs.freedesktop.org/show_bug.cgi?id=109616
@grigi: https://bugs.freedesktop.org/show_bug.cgi?id=109616 appears as RESOLVED FIXED.
Nice, closing this then.
Proton versions
proton 3.16x1 2019-01proton 3.16-6x2 2019-01
When playing The Witcher 3 (from Steam) on a Kabylake Core i7-8650U on a Dell notebook with a UHD620 I get a weird texture flickering when items are in shadow.
Generally the game is too dark,
I did a video recording https://drive.google.com/open?id=1MohQ4EGNQ94PDaS6a9wbjy5yIdYirE5G to highlight the issue.
This is using DXVK 0.94 bundled with Proton 3.16-6.
Software information
The Witcher 3 from Steam, 1280x720 all lowest except for texture resolution which is medium.
System information
I unfortunately did not do an APITrace. Generally the game runs as expected, except for the dark/flickering issue.
I understand this is below the minimum spec of the game, but is otherwise playing and enjoying the game, just the dark/flicker issue I am wishing to resolve here.