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3DCoat version 2024.22 and above add a new option “Edit->Prefs->Tools->Don’t group vertices per objects in OBJ files (like ZB)” for better compatibility when you need to keep the vertex order in OBJ files.
Anyway, 3DCoat preserved vertices order, but in some case it is not enough, and vertices should not be grouped.
In this case you need his option.
For texture painting
To export DAZ figures on 3DC for painting, you need first to follow some steps to get it working without issues.
On DAZ you need to export G3 figures or G8 figures without eyelashes.
G8 has its eyelashes as a separate piece of geometry and when you export that out the eyelashes actually gets merged with the face and that causes issues with painting.
But with G3 there is not separate piece of geometry over here for separate eyelashes.
If you like to use G8 figures before exporting the model remember to delete eyelashes pressing RMB over the model layer and select Delete G8 eyelashes.
Remember to export the base mesh without SubDiv.
– To export the model without textures be ready that Collapse UV tiles and and Write surfaces are not enabled.
– To export the model with textures be ready that Collapse UV tiles is not enabled and Write surfaces is enabled.
Preserve uDim tiles
As Genesis3 uses UDIM tiling, you need to import with UV tiles support on 3DC.
This option, paint DAZ characters with UDIM workflow allows you to paint seamlessly anywhere on your character with no limitations, and to avoid the old method of paint objects layers on by one.
So import the Daz figure Turning on Import Tiles as UVset.
The model is imported into 3DCoat with all the udims uv layouts preserved.
with the model objects zones
Iray shader use both types of shader mixing:
To select the correct workflow select it on Textures Menu.
Once you finished painting, export the texture maps from File > Export Objects and Textures.
Remember on export panel turn ON Export UVsets as tiles.
After export all the texture maps to a folder, on DAZ locate every model surface and press image icon to load the new texture map.
Browse an go to the folder where you exported that maps from 3DCoat.
You also have to do every map that DAZ figure have selecting it after upload into DAZ.
For Genesis 2 models
For Genesis 2 models there’s an option in your DAZ obj export dialogue to collapse the UVs, which is an alternative to previous suggestion.
It would also give you a collapsed set of UVs to import into Genesis within DAZ Studio, provided you export the base mesh -without SubDiv-.
Creating Morph Targets
This video covers the updated process of creating Morph Targets or Blend Shapes in 3DCoat, with the purpose of exporting to a major 3D Animation application.
UV tile support and usage of multiple UV
This videos covers (in more detail) the addition of UV tile support and usage of multiple UV:
