So you are now working with 32 bit maps right? Tiff or EXR?
What do you mean by “decimated the models”? Importing optimized OBJ into max and RTT from there? I tried that as well but one of the sculpts I have intersects itself, which means the max’ way of projection doesn’t work well for me (UV match = unclean result, cage = I get unwanted projections from other parts).
Here’s my situation:
I need to blend between different maps (animated sofa wrinkles), and the Composite Map doesn’t seem to work properly with in the Arch & Design Displacement slot.
Plus, Composite with multiple 32 bit maps bogs down my Max, so I fall back to 16 bit maps.
I ended up using the Displace modifier, for the strength I use Alpha Depth Factor * Mesh Scale in Zbrush/Tool/Export. It seems to be about right but not 100%.
So I’m still looking for the right way to determine the displace amount. Why this pipeline still doesn’t have a tried and proven, fool-proof tutorial (for max) is beyond me.
Nice tip regarding the local subdiv setting!