“To create my image, “Ravine”, first I created a shaped terrain and tree roots in 3ds Max 2010 and Mudbox 2009. Next, using 3ds Max, I put unwrap UVWs on the terrain (I won’t go into detail about this process because it is already available in tutorials on the net!) Then I exported the terrain and roots into Vue 7 Infinite.”
http://www.3dtotal.com/tutorial/3d_studio_max/makingof_ravine/ravine_01.php