This is something I've been trying to figure out for a long time.
I have a 3D model extracted from a game, it is already rigged and with the weigths set. What I want to do is subdivide the mesh of the model so it can be more rounded and detailed in the game (I export it to FBX). The problem here is that if I subdivide the mesh of the character the weigths break, so I can't move it anymore. Is there any way to conserve the weigths or adaptate them to the new subdivided mesh?
If you subdivide it with SUB-D or other tools you loose the weight