Harald Yeah, thanks for the additional information!
I had mistakenly only make a variation of Spine-Skeleton.shader
for our 'rim-light' effect, rather than it and also a variation for Spine-Skeleton-TintBlack.shader
, and because we're using custom shaders/materials here the "Tint Black" setting on the SkeletonAnimation component did nothing for us.
After implementing a Spine-Skeleton-RimLight-TintBlack.shader
using the Normal and Caster passes from Spine-Skeleton-TintBlack everything seems to look and work as we intended it to!
Here's a look of the action if you're curious 😉:
Edit: Huh, that's weird. Something went wrong with the video upload, only the last few frames are playing.