ZBrushCentral

Z brush modelling axis limitation problem

ZBrush Usage Questions
#1

Hi, Im trying to model from a poly-plane in Zbrush so I can create a normal map for a tileable rock texture.

I have turned off Transform>Modifiers>Xyz and changed the switches next to it so that only Z is active to clamp all editing to the Z axis, so it will be impossible to move points in the XY directions. This has enabled me to keep my poly-planes edge completely square. The problem is that I am working with a pre-made diffuse texture and when I switch the texture on which is mapped texture>UVP, it means I can no longer model with Zadd or Zsubtract. Any ideas, this seamed to be the ideal workflow to create base normal maps for tileable organic surfaces that I could enhance with smaller details in Crazy Bump. Any ideas?

Also when I subdivide the poly-plane the edges round off which is less than ideal. Am I approaching this from the right angle? Is there a better approach?

#2

To prevent the plane from smoothing when divided, try pressing Tool>Geometry>Crease before you divide. The corners will still smooth a tiny bit, but not nearly as much.

Regarding the other issue, try converting your texture to polypaint before you begin the sculpting.

#3

to totally remove any smoothing around the edges, you can turn off “smt” in the geo panel before you divide as well.

#4

Wow what a quick reply! Great, that sorts out the corners, any ideas about modelling when a texture is applied and I have the axis limitations on?

#5

Have you tried converting the texture to polypaint?