I'm currently trying out displacement maps. As I was told by some video tutorials I need to apply them as a (displacement) modifier on the mesh. Therefore, I have to subdivide the mesh to achieve more detail. These subdivided mesh is then stored in my blender file, making it very huge. And also blender eats up a lot of memory...
What I'm looking for is some kind of virtual subdivision function which doesn't actually store the vertexes, which are only displaced by the displacement modifier. So they are actually reconstructible by having the number of subdivisions and the displacement map available. It would also be nice if I could disable the subdivisions visibility for some objects during work and only render them in high detail.
Also, blender v2.76 seems to crash sometimes when having too many subdivisions for a quite simple plane (scaled to 7x7 units, subdevided by factor 100 and then again by factor 3). While I have 16 GB of RAM installed in my machine... Any Idea how to reduce this?
As I was suggested to use the subsurf modifier, I looked (again) through the list, but wasn't able to find it. I know I have used it some years ago, when I worked through some blender tutorials... Has it's name been changed?