I think your mesh looks good, but it seems it's triangulated or the smoothing groups are messed up. If you want it smoother, just add smoothing groups in max. select the element (hotkey 5) and hit autop smooth to start, then take off the smoothing where you want it to be rough. Another option is to take that mesh if it has…
Thanks! as for the method for making terrains, I'm currently setting up a detailed workflow that I will share with the community. There is really nothing special to it, but I'm sure that will save a lot of time for people wishing to get convincing results for highpoly cg renders and for game engines. Just to summarize it…