YATT - Yet Another Terrain Editor Found at Allows importing heightmap data into the NWN2 toolset. This lets designers use tools like Adobe Photoshop, scanned maps, and programs made to edit height maps such as Bryce. Tutorial is here Now the basic way to use this program is to setup an area in photoshop. One of the most confusing things about this is determining where the live area is and the size of the image.