Hey Steffen, could you show me an example of what you mean? I guess you mean the "triangulation" that happens in each poly. You want to keep it concave, right?
I'm not sure having a concave "triangulation" would always be the "proper" way of doing it, right? Nowadays I'm focusing on tools mostly so I'm a bit rusty with modelling... In Spec Ops for example, back when we were using the terrain actors instead of staticmeshes to create the dunes we had to "turn" some edges, making…