the problem I use mirror overlapping to get more space in UV for my modules, and for my light map I use separate UV.
my problems with the normal map when I use mirror or symmetry UV I start to see seams . you can check my files.
Ok here images show how I do :
in softimage :
export :
Unreal setting :
the problems :
the Files :
I will REALLY happy if you see the files and knows what the problem in it.
I really try a lot and I hope find the solution here.
thanks