With Lumens on how do I remove Directional Light Ray Traced Shadow artifacts?

Name: Fixing the Ugly Shadow Issues in Unreal Engine 5
Uploaded: 2022-06-02T19:19:59Z
Description: Found the solution r.RayTracing.Shadows.EnableTwoSidedGeometry = 0 [Fixing the Ugly Shadow Issues in Unreal Engine 5]

luma-dev · June 2, 2022, 6:41pm

With Lumens on With a Single Directional light With Raytraced shadows turned on I get these artifacts. How to I remove them?

luma-dev · June 2, 2022, 7:19pm

Found the solution
r.RayTracing.Shadows.EnableTwoSidedGeometry = 0

alberto · June 3, 2022, 12:37am

But disable raytracing two sided geometry is not perfect… at the end you can see is the fallback error: