I followed this tutorial to make a POM material for my brick floor: How to Do simple Parallax Occlusion Mapping in unreal Egnine 4 - YouTube
Instead of feeding all that setup for UVs on POM node, I simply fed texcoord [0] into UVs input on POM node (I don’t know if it has anything to do with the issue).
After applying material to the floor mesh, it worked fine. However, if I rotate floor mesh 90 deg. to make it a wall mesh, POM material turns flat black.
What am I missing ? How do I make sure POM material works for floors/walls/ceiling ?
Thanks
P.S. I am using UE 4.22.3