Description

Alternative you can follow these steps to reproduce
1. Create a new project with ray tracing enabled
2. Activate the groom plugins
3. Import a groom asset into the scene
4. Add any light type to the scene and increase it's ray traced shadow sample settings to a value greater than 1.

Steps to Reproduce
  1. Open attached project in Binary 4.25
  2. Move over to Ray tracing shadow samples = 8
    Result: Shadow artifacts around hair strands
    Expected: No shadow artifacts around hair strands

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Fixed
ComponentUE - Graphics Features - Lumen
Affects Versions4.25
Target Fix4.26
Fix Commit14428277
Release Commit14428277
CreatedSep 23, 2020
ResolvedOct 6, 2020
UpdatedApr 27, 2022
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