I would like to know how is the correct process to export a 3D model with correct "vertex group" or "vertex color" to use in zbrush as polygroups to make my work easy.
1 - first of all I modelled this bucket in blender to use as Insert multimesh.
2 - the next step is create a "vertex paint" ?.
3 - then I go for export menu , choose as obj file , but before , I apply 0,0,0 to (r,l,s transformations) and go to this tab (check if this board are correct , I do not know what's the effects in those blue box I ve marked).
4 - Now , In zbrush there are not polygroup (one for the strap , one for the metal button and one for the main bucklet , I just see only one polygroup for all the object see the image).
5 - the most quick solution is to separate the mesh in zbrush and create differents polygroups manually for every bucket and his pieces, metal button and main strap. but I prefer to use blender with group previously.