Bug 106912

Summary: radv: 16-bit depth buffer causes artifacts in Shadow Warrior 2
Product: Mesa Reporter: Philip Rebohle <philip.rebohle>
Component: Drivers/Vulkan/radeonAssignee: mesa-dev
Status: RESOLVED FIXED QA Contact: mesa-dev
Severity: normal    
Priority: medium    
Version: git   
Hardware: Other   
OS: All   
Whiteboard:
i915 platform: i915 features:

Description Philip Rebohle 2018-06-13 15:00:28 UTC 
Hello,

Shadow Warrior 2 uses D16_UNORM as a shadow map format, and clearing the depth buffer in one render pass instance and rendering to it in another results in parts of the depth buffer getting set to 1.0. The game renders correctly with RADV_DEBUG=nohiz.

I wasn't able to reproduce this issue outside of DXVK so far, so here's a Renderdoc capture of the issue (captured on Polaris 10):

  https://mega.nz/#!gfoWFDSC!rb9qsW9H6dGq_gsNvpdhPW82mSkZEy94PX-4Ey6BSTs

The render pass in question starts at EID 19473, which should be bookmarked. For the capture I used Mesa 18.1.1, but the issue is still present in latest -git.

Regards
- Philip
Comment 1 Samuel Pitoiset 2018-06-13 16:26:23 UTC 
Can you explain how to reproduce the issue in-game? I would like to know if Vega is affected as well.

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