A free one more! :)
Formzfree : some usefull fonctions : like Stair, Rof, Terrain, Unfold volum Minutes 24.08
http://www.formz.com/products/formzfree.html

Export DAE, STL, KMZ so maybe some converters are needing! http://meshlab.sourceforge.net/


Works fine with MOI! ;) Thanks to Max Smirnov for the astonished _Import OBJ & _SubDiv_Beta9