TER is the Terragen terrain file format. It works in both Terragen Classic and Terragen 2. In Terragen 2, simply create a Heightfield Load and point the file load dialog to the location of your TER file. To do this in the default scene, go to the Terrain layout, press the Add Terrain button, and select "Heightfield (load file)". The open file dialog will come up automatically. Once you select your file, it should update in the 3d preview and you'll see what the heightfield looks like in your scene. Note that heightfields cover a finite area, whereas TG2 uses a planetary model, so the heightfield will only cover a part of your planet which will appear as a raised area of terrain with flat planet around it. You can use various heightfield operators to adjust size, height, etc.
- Oshyan