ZBrushCentral

Need to edit mesh in an outside app...

ZBrush Usage Questions
#1

I am having a problem with some of the topology on my model… heres a pic

It seems those polygons are causing me problems. The map renders are coming out very badly due to it, and if I am rendering them in any applications they are rendering as if they are reversed - but they are not. Tried flipping them and they actually are the right way out.

So I thought this may have been an issue due to Triangles, but it turns out they are not triangles either. From mirroring my geometry, it formed some triangle-shaped quads. It may not be easy to tell, but basically there is one triangle-shaped quad on the left, and one on the right. Seems the funky shape is causing problems.

So I know an easy fix would be to simply get rid of the line in the middle as they could easily form a single quad.

Problem is, I need to know how I could fix it in another application and get it imported back in to ZBrush without losing my higher subdivision levels? :confused:

#2

maybe you should post a mesh screenshot

#3

without a mesh shot its near impossible to tell. perhaps the vertices right there are not joined?

#4

Here is a mesh shot of the issue

Strange thing is I took a shot from the “inside” of the mesh, and it also seems to be doing the same thing on the inside… heres a shot

If I could edit the mesh and still keep my detail levels, I would just connect both triangles as a single quad. But the only way I know how to change low-res mesh’s in an existing ZBrush project dont work if you change the topology…

Any suggestions?

#5

those loose vertices in there are definitely WRONG!
snap and weld them to the outer ones, making quads in there

#6

But that model was the subdivision level 1 exported from my ZTool.

If I export, and weld the verts, how do I import it back in to ZBrush without losing my higher subdiv levels?

I know how to change UV’s or Textures, but from what I’ve read, the same method does not work if you edit the meshes topology. How would I do it in this scenario?

#7

since you are changing the topology of your model you will looese all work

If you keep the uvs unchanged you could render a dipslacement map and apply this to your new mesh…

#8

You could also append the new version of the model to the original as a new SubTool. Subdivide to match the polygon count. Then use Tool>SubTool>Project All to transfer the details from the original.

With Draw>Zadd on, sculpted details will be copied.
With Draw>Rgb on, any polypaint will also copy.

#9

Worked awesome.

Thanks! :smiley: