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ZBrush to Blender - Help Please!

ZBrush Usage Questions
#1

Hi, I am trying to get my ZBrush displacement map to work properly in Blender and I’m hoping a Blender user here can help me out. I am using Blender 2.5 (mac).

I created my base mesh in Cinema 4D and aligned the normals in there before exporting the .obj and importing it into ZBrush. I then created a displacement map in ZBrush and flipped the map on export. I also exported the .obj file. In Blender I used a Sub-Suf Modifier and set “Smooth” on.

Here are a couple of my problems.

  1. My Blender render caves in instead of pushing out like the ZBrush render and I am not sure why?

  2. there are horizontal lines in the blender render that shouldn’t be there. What might be causing these?

[ZBrush_Blender.jpg]

#2

Did you export and use only the geometry, or are you using also normal maps, displacement maps etc. ?

#3

I am using the “low poly” mesh with the ZBrush Displacement map in Blender.

#4

Ok, remember that when you use texture maps in other programs, you have to flip the V axes.
Also, try to use a negative bump or displacement value if the bumps rendered are inverted (caves where should be bumps and viceversa).
Hope this helps…

#5

Make sure you have enough polys in your base mesh also. I ran into an issue earlier trying to put a disp on a 200 quad mesh, and was told that it needs a thousand at a minimum for displacement.

#6

Thanks Florence and James. Good Points. I will give it another go. :slight_smile: