When using an RVT with BaseColor/Normal/Roughness format on DX12 with a GPU that supports Tier2, a GPU crash may be seen.

Steps to Reproduce

Open the TM-RuntimeVirtualTextures map in QAGame.

Open the asset /Game/Maps/Tools/VirtualTexture/RVT_Landscape.uasset

Change "Virtual texture content" to "Base Color, Normal, Roughness"

Observe GPU hang.

After the fix, there should be no hang, but the RVT change will make the map appear grey/incorrect until the associated materials are fixed up. To do that select the RVT asset in the content browser, and in its context menu select "Fix material usage". Even after this the map won't look exactly as it did before the RVT change, because specular is not handled by the format. This isn't a bug.

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ComponentUE - Rendering Architecture
Affects Versions5.2
Target Fix5.3
Fix Commit25613987
Main Commit25613987
CreatedMay 24, 2023
ResolvedMay 26, 2023
UpdatedMay 26, 2023