[Mesa-dev] [Bug 110662] shadow artifacts in Assassin's Creed: Unity

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=110662

            Bug ID: 110662
           Summary: shadow artifacts in Assassin's Creed: Unity
           Product: Mesa
           Version: git
          Hardware: x86-64 (AMD64)
                OS: Linux (All)
            Status: NEW
          Severity: normal
          Priority: medium
         Component: Drivers/Vulkan/radeon
          Assignee: mesa-dev at lists.freedesktop.org
          Reporter: tempel.julian at gmail.com
        QA Contact: mesa-dev at lists.freedesktop.org

Especially in interiors like this, there are "holes" and stripe artifacts in
shadow maps:
https://abload.de/img/screenshot_20190510_24djhr.png

They also wander and change shape in motion, making the corruption quite
perceivable.

The issue does not occur with proprietary amdvlk driver (open amdvlk hangs) and
neither on Windows with DX11. Using Nvidia PCSS GameWorks effect mitigates or
stops the issue, but it's very expensive.

Uploading renderdoc capture right now.

Latest git-master versions of dxvk and mesa were used.

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