I bought the Terrain Tutorials over at C3D and admit that without that information I had barely touched upon some of the great terrain features that V5I has! $20 may seem a lot of money, but the tutorial was very well researched, and the author clearly put a lot of time into it. Here's the link : http://www.cornucopia3d.com/purchase.php?item_id=858 Check out these example images, and see what you think: http://www.cornucopia3d.com/download/store/PictureFiles/Training/ProceduralTerrainAtoZ_3_15_0.jpg http://www.cornucopia3d.com/download/store/PictureFiles/Training/ProceduralTerrainAtoZ_3_15_1.jpg http://www.cornucopia3d.com/download/store/PictureFiles/Training/ProceduralTerrainAtoZ_3_15_2.jpg Kind regards