Hello all 
I am kinda newb in jme, but I have a pretty good knowledge in java (2 years of coding) and I am currently starting a game in jme that is a voxel based city builder (not cubes, a smooth and nice landscape) and I was wondering how I could make a custom map type, based on custum noise functions, specifying the height at certain points (like a heightmap). I do not want to use a texture, I just want to generate the mesh, and then apply some other leveling on it, based on mathematical functions. How would I need to proceed to make a multiple detail map, and enable collision detection(if not applied on meshes automatically), and if possible make collision detect only on triangles in the 10x bounding sphere of the actors.
Thanks for your help