merging vertices = no good.
this is a problem I´m facing over and over again. maybe someone can give me an advice how to handle this.
very often, after combining 2 parts of geometry and merging the verts poly to subD I get this -> result: 0
the SE tells me to clean up the geometry cause of nonmanifold vertices. I do so and have loose faces arround the bad verts. but to connect geometry I would have to merge the vertices again.
what I don´t understand is: after some attempts of merging/cleaning up/deleting history/deleting faces/add to polygonTool it is working for some verts - not for all. I never understood what the real problem was, how to describe it exactly and how to avoid it. it would make me very happy if someone can tell about.
everything starts and ends in the right place at the right time.