After some testing, the alternate method using layer blending works* sort of....there are still seams, but you have to be extremeley close up to see them. I had to set the layer amount to -0.45 which sounds like an oddball number, but it was what looked best visually. Still though, the first method is much cleaner.
Or How to get proper Zbrush displacement from Mari udim texture workflow. This seems (har har) to be a persistent problem for a good while now, and after pulling my hair out troubleshooting and testing online solutions for my own project for the last couple days, I was able to figure out what was happening: zbrush will…