Maya + Arnold + Displacement (from ZBrush)

goekbenjamin

hey folks right now I try to render a simple sphere in Arnold
with a displacement map, it kinda works, it looks like that:

zbrush:


Maya:


Maya closeup (this is where the error is visible):


it looks very weird and i dont know what i did wrong here:

i exported the mesh from subdivision-level 2, and the displ.map was generated like that:


the "sphere-shape" in maya has those settings:


and this is the arnold standard surface material:

oglu

Go one subD level higher. 3 might not be enough.
And its possible that a 8k map is on its limits. Take a close look if you see the pixels there.

And export the highres sphere for rendering in Arnold to compare to the right thing. 
Rule number one. Dont trust Zbrush.

goekbenjamin

thanks oglu!
quite a nice tip to compare high-poly with low+displace.map never have thought of that

I managed to work things out....once in a while a zbrush-tip was helpful:

i changed the mid-value to zero and now those "stairs" are gone, yay

thanks again!