ZBrush to 3ds max ( Mosaic ) UV map ?! Help !

barmyg

Hello poly counters ,
 i encountered a UV mapping problem which is : 
- i used UV master in Zbrush to separate the polygroups to UV islands .
- exported the low-poly mesh to 3ds max to make a Multi-Tile UV map ( the body on a tile and the Face on another )
- i imported the model to zbrush and the copied the uv to my original mesh .
- i find a strange ( mosaic - like ) uv map .

i think the problem happens in the exporting from 3ds max , but i'm not sure .
i uploaded my export options hope it helps ,

Thanks  .

Eric Chadwick

This belongs in Technical Talk instead of General Discussion. I moved it for you. Not a big deal, just something to be aware of next time.

gandhics

3dsMax obj exporter had a bug which offsets UV verts while exporting poly.
3dsMax 2017 exporter has fix for this.
If you use lower version, you can try to apply mesh select and export.

barmyg

gandhics said:

3dsMax obj exporter had a bug which offsets UV verts while exporting poly.
3dsMax 2017 exporter has fix for this.
If you use lower version, you can try to apply mesh select and export.

i use 3ds 2016 , but i haven't used the " mesh select modifier " before .

- could you illustrate more what i should do with it ?
- or should i just apply, collapse Then export ?

Thanks very much for the reply .

Eric Chadwick

You can use any modifier that triangulates the model. The modifier does not need to be collapsed, it just needs to be on top. I use Turn To Mesh to avoid UV and Vertex Color issues with FBX.

Mark Dygert

I remember this being an issue with the OBJ exporter in 3dsmax. It wasn't writing the vert index table for UV's correctly. 

Kevin Burgess explains the problem pretty well and how to fix it.
https://www.youtube.com/watch?v=yQHOIh5VuzE