I was browsing through the net looking for tutorials on vray and came across these two plug ins for 3dmax. Whenever I had a project wherein I needed to use clay roof tiles on the house I always modeled each roof tile in order to achieve a more realistic look. I never thought that there were plugins around that would make my work easier.
As for the trees and plants I usually use those ready to use models bought from 3d stores. Although I still have to try these two plugins out I think this will be a great addition to my tools in my work as a 3D Artist for Architectural renderings.
The videos below demonstrate the plugins and as far as I know these can only be used on 3d studio max.
The homepage for these plugins is http://www.avizstudio.com
Hope you will find their plugins useful.