ZBrushCentral

Importing low Poly .obj into SubTool acting strange.

ZBrush Usage Questions
#1

Hi. I am having a hard time getting my low poly, posed mesh from 3DS Max back into my subtool.

The vert count has not changed.

I set my character mesh to its lowest subdivision and import the posed max mesh. I select “yes” to import the high poly details. When the posed mesh is done importing, it loses all of its detail and certain parts (it appears to be the parts that were not moved in the pose) come in masked off.

I am cracking up over here!

Is there a step I am missing?

I would appreciate any help.

Thanks!

#2

Don’t import the mesh over the old one.

Instead import the mesh into a new tool
append that mesh into your old one and project the new mesh onto the old mesh.

#3

I find it helps to export the subtool originally without any polygroups (either create a single polygroup, or turn off tool: export: grp). Then you’re far less likely to run into the vertex order changing around on its own.

#4

Thanks! I will try both. Will that work on a character from a T-pose to a posed figure, beta_channel? Any chance you know of a tutorial for projecting like that?

One problem that I have is that I will need to keep the subdivision levels of the T-Pose on the posed figure, if possible.

#5

The method I outlined above will not work on a posed mesh. It only works for changes to the topology and slight changes to form.

If you need to pose the character and keep all of your subD levels then you’ll need to make sure you’re not changing your point order, which I am guessing is your problem. Cryrid mentioned polygroups, and in Maya those are read as different mesh islands, and when re imported into zbrush it reads each polygroup edge as 2 sets of verts, which changes your point order.

Try what Cryrid mentioned and see if that fixes your problem.

#6

Ok, I think I figured out what the problem is. Are x,y,z different in Max than they are in Zbrush? If I bring in both .obj’s into Maya, the Zbrush obj has y as up and the Max has Z as up. This must be the problem. Is there a way to set Max’s x,y,z to match Zbrush?

I am new to Max and am still finding my way around.

#7

They are different. http://docs.pixologic.com/reference-guide/preferences/importexport/