Thanks again, shade smooth works now. But I have final problem with material index:
Nodes:
File: pipe_cage_research.blend (197.9 KB)
Also at this point I kinda regret not just using modifier inputs and trying to do this transfer thing, haha 
Thanks again, shade smooth works now. But I have final problem with material index:
Nodes:
File: pipe_cage_research.blend (197.9 KB)
Also at this point I kinda regret not just using modifier inputs and trying to do this transfer thing, haha