ZBrushCentral

Displacement Edge Problem

ZBrush Usage Questions
#1

Hello! Long time lurker, first time poster, apologies if this is in the wrong thread?

Playing around with zBrush for the first time…

I am having difficulty with displacement edges from zBrush in Maya… I have searched high and low for answers… Some people with the same problems, but no solutions.

The displacement map created seems to be creating white edges on the cube, even though I haven’t painted anything there. This is causing my render to push out the edges of my object.

Any help is greatly appreciated! Thanks.

  • Glenn

Attachments

cube.jpg

#2

You could try creasing in ZBrush before generating the map:

  1. Go to subdivision level one.
  2. Make sure Tool>Geometry>Crease>CreaseLvl is set to 15.
  3. Press Tool>Geometry>Crease>Crease All
  4. Generate the displacement map.
#3

Hi thanks for your reply,

I tried your steps, but no luck unfortunately…
what.jpg

Maybe my workflow process is wrong?

  • I create the cube in maya
  • Export as .obj
  • Import into zBrush
  • Subdivide a bunch of times
  • Paint z add and z sub on the geo
  • Drop back to subdivision level 1
  • Crease all edges at crease level 15
  • Export the displacement maps
  • Apply the displacement map to the maya shader
  • Render in maya.
    Am I doing something out of the ordinary here?
#4

After you’ve dropped down to level 1 re-import your original mesh, then crease and generate the displacement.

#5

Apologies, I am VERY new to zBrush…

Surely I must do something to link the newly imported original mesh with the displacement on the current cube in the scene?

If I re-import the original mesh, will I not just get a new cube mesh in the scene with nothing painted on it? Forgive me if I’m thinking about this all wrong!

…Is this a vital part of zBrushing that must be done each and every time I start with a mesh created outside of zBrush? Is this a normal workflow?

Thank you greatly for your replies!

#6

Actually i had the same problem with the edge thing today.

I think i solved it with the crease instructions.

  1. Go to subdivision level one.
  2. Make sure Tool>Geometry>Crease>CreaseLvl is set to 15.
  3. Press Tool>Geometry>Crease>Crease All
  4. Generate the displacement map.

There’s no need for re import. Just set it to level one and follow the instructions.

#7

The point of re-importing is that it restores your original model. If that’s what you are using in your render app then you need to restore it in order to generate the correct displacement. It won’t replace your sculpting as the topology is the same.

#8

Thanks iikii,

Was having the same problem, and your CreaseAll solution helped me. Much appreciated!