As real displacement map does not work pretty well with cycles yet I have tried to use several displace modifiers with several displace texture using vertex group to select which part of the body would be affected. I have one material for every part, so it is not an UDIM system issue.
So the problem is in the shared vertex the displacement does not affect properly. It is a expected behaviour but if I use vertex weight to low the intensity of those vertex to 0.5 in each piece… it does not work either.
Did any of you have the same problem? Do you now any way to solve this? Thanks