Terragen 4 Professional – One of the world’s most powerful scenery generator software that can be used to create renderings and animations of landscapes. It provides all the tools needed to create photorealistic landscapes while also can be expanded with plug-ins. Terragen (Terrain Generator) is a powerful scenery generator software program that can be used to create landscape images, 3D models, and animations. The program allows you to generate basic elements of landscapes include terrain, water, foliage, and clouds.