Due to the changes made to subsurface profile (implementation of full resolution skin shading) it now renders white or with heavily faded base colors under certain conditions.

In this case it is when illuminated by particle lights. There are other JIRA tickets out for the other cases.

[Link Removed]

[Link Removed]

To fix this you simply need to change r.sss.checkerboard to 1 this reverts back to the old behavior so you lose full resolution skin shading.


Issue Does not occur in Binary 4.13.2 CL 3172292
Issue Does occur in Binary 4.14.3 CL 3249277

Steps to Reproduce
  1. Open attached project
  2. Move the particle system in the scene closer to the sphere located in the middle

As the the sphere is lit by the particle system it will turn white.

The sphere appears blue in areas illuminated by particle system

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Won't Fix
ComponentUE - Rendering
Affects Versions4.14.34.15
CreatedFeb 9, 2017
ResolvedAug 18, 2021
UpdatedAug 18, 2021