ZBrushCentral

Merging all uv in one tile.

ZBrush Usage Questions
#1

Ok, so I am just getting used to multi map exporter and I’ve scoured the internet extensively trying to find a rsolution for this.

I have a model, I have the high Poly mesh, with its low poly subd, so I can bake the high frequency detail into normal, displacement maps etc. for the low poly mesh.

I wanted to know how to merge all the UV’s into one tile, I click on "merge maps’ while using multi map exporter, but it just places all the maps ontop of one another in one UV tile, so it is unusable. I have read the trick of merging the subtools and and then unflattening, but I can only do this with the low poly subtools, my system will not be able to handle all the subtools from the high poly model merged into one tool.

I want the solution to be in zbrush if possible, as I don’t have Maya or most of the other programs yet.

#2

Anyone??

#3

There’s a simple way to do this that isn’t too time consuming as long as you don’t have too many subtools!

  1. With your model selected and all its subtools visible, press the Transpose Master>TPoseMesh button. The Transpose Master>Grps option should be OFF, so that the plugin creates a separate polygroup for each subtool.

  2. Transpose Master will craete a low res combined mesh. You can now use UV Master to create UVs. Make sure the Polygroups optrion is ON. There’s no need to work on a clone.

  3. Once you have UVs assigned you need to split the combined mesh back into subtools. Transpose Master won’t transfer the UVs so we have to use a different method. Press Tool>SubTools>Split>Groups Split.

  4. Now the UVs need to be transferred. You need to select a SubTool and press UV Master>Copy UVs. Then select your original model and find the right subtool before pressing UV Master>Paste UVs. You’ll have to find the correct subtool by eye as the low res ones won’t be named correctly.

  5. Repeat (4) for all the subtools.

After doing this the Merge Maps feature of MME will merge all the maps into one and there won’t be any overlap.

HTH,