I've got a big problem here. I've done a part of the map, but now I want to add more displacements, and sub-divide them.
Problem is I can't do it because it breaks the original displacement, and I can't subdivide all the cliff because I've made holes on them to make the doors, so if I subdivide it will break what I've been doing before.
Do you know a way to only subdivide the vertex I want to subdivide?