@Evgeni_Popov Thank you for the response!
Can you provide a PG for this material plug in?
I actually asked a follow up question here 1 day ago:
My follow up question is related to this topic.
You can use the solution PG as a starting point in the link above. From my understanding, in the solution PG, there just need one more “flip normal at shader” step added after sideOrientation, the rendering result should look correct.
Hope this makes sense.
Many thanks,
Tawibox