Description

Meshes that have "Self Shadow Only" enabled are still casting shadows if ray tracing is enabled with DX12.

Found in 4.23.1 CL#9631420
Reproduced in 4.22.3 CL#7053642, 4.24 CL#10053396, 4.25 Main CL#10050790

Steps to Reproduce

1. Create a First Person template project.
2. Enable "Cast Shadow" and "Self Shadow Only" for Mesh2P and FP_Gun in FirstPersonCharacter.
3. Enable "Ray tracing" and set  "Default RHI" to DirectX 12 in project settings.
4. Restart the engine.
5. Play the level.
6. Observe the shadows being cast.

Expected: There are no shadows being cast by Mesh2P and FP_Gun.

Results: There are shadows being cast by Mesh2P and FP_Gun.

Have Comments or More Details?

There's no existing public thread on this issue, so head over to Questions & Answers just mention UE-83243 in the post.

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Won't Fix
ComponentUE - Graphics Features - Lumen
Affects Versions4.23.14.244.22.34.25
CreatedNov 6, 2019
ResolvedAug 27, 2021
UpdatedSep 19, 2021
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