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Maya + Arnold + Displacement (from ZBrush)

polycounter lvl 5
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goekbenjamin polycounter lvl 5
hey folks right now I try to render a simple sphere in Arnold
with a displacement map, it kinda works, it looks like that:



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
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    oglu polycount lvl 666
    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
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    goekbenjamin polycounter lvl 5
    thanks oglu!
    quite a nice tip to compare high-poly with low+displace.map :D 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!
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