Bug: photoshoot headwear items (e.g. helmets) are lit from behind instead of front.

[GordonWeedman]

Tools (complete and add to the following information):

• HEMTT: 1.16.1 (also occurred with older versions)
• Operating System: Windows 10

Description:
When generating icons for headwear items, they all appear lit from behind instead of from the front

Steps to reproduce:

1. Run photoshoot to make an icon for a headwear item
2. Inspect icon

Expected behavior:
Item to be lit from the front in the icon

Logs:
If applicable, add logs to help explain your problem.

Additional context:
Add any other context about the problem here.