Recover original form after subdividing, return to low and delete higher (SOLVED)

[Cristobal]

Hi guys!

I remember to read some months ago about this issue and how to fix it, but I don’t remember how… (there was a tutorial, I think…)

• In GREEN you see the original Modo model exported as OBJ and imported to ZBrush.

• In RED you see this model, after applying 3 subdivisions in ZB and then, return back to lower resolution, delete higher res, export as OBJ and re-import in Modo

As you see, there are subtle and even notable changes.

I remember to read something about how to recover the original (green) form inside ZBrush, but I can not find that docs/tutos.

Any idea?

Thanks!

[Spyndel]

Hello @Cristobal

Subdividing a mesh alters the mesh slightly across all levels of subdivision. This typically isn’t an issue if you’re exporting the altered geometry directly from ZBrush and applying the generated maps to it, so it’s better to work this way whenever possible. It’s only an issue if your geometry must match the geometry in another file someplace exactly.

To correct for this, it is necessary to store a morph target, and import your original mesh into it to restore the mesh immediately prior to generating any maps. The procedure for doing this is detailed in the “Switch MT” section of the Multimap Exporter documentation, and also in this procedure for exporting a texture.

[Cristobal]

Thank you so much @Spyndel!

I will look your suggestions tomorrow (now is dinner time…)

In any case, a guy in Twitter just refreshing it.

It was this mini tutorial:

twitter.com/soyposmoderno/status/1271166221673627648