Loss in Specularity on Skin Shading when Shadowed by Indirect Capsule Shadows using r.sss.checkerboard 0

A licensee is reporting incorrect or over exaggerated loss of specularity on the Subsurface skin shading model when shadowed by indirect capsule shadows, and then modifying the r.sss.checkerboard setting.

"Enables or disables checkerboard rendering for subsurface profile rendering.
This is necessary if SceneColor does not include a floating point alpha channel (e.g 32-bit formats)"

1. Open repro project (Link to project in comments).
2. Bring up Console Command and type 'r.sss.checkerboard 0'

Outcome The specular highlights on the character bust seem to be greatly affected by the setting this console command.

Expected The cvar is expected to affect the resolution of the specular shading (eg more pixel-level detail in the highlights with checkerboard 0) but not the overall amount of specular.