Lots of great tools for level artists out there . I was just watching a video tutorial the other day that used Titan Quests level editor and it seems to be pretty darn good for making terrian and levels . Here is a link to the tutorial videos but they are huge !…
For landscape specific tools google for : Terragen Bryce Vue d'Esprie - now called Vue There are others, including one with a kind of Russian name that was known for it's world animation tools back in the day. Many CG magazines have tutorials explaining these. They are quite fast to pick up as they don't rely on tedious…
If you're asking about terrain for games: In XSI, you can apply a weight map to a surface, and connect a push modifier to that weight map. From the weight panel tool, you can paint the deformation onto the surface in the viewports. Easy way to do this is simply select Paint Push Tool in the properties window. With that,…