Terra Tools 

TerraTools®, the military simulation and training industry's leading virtual terrain generation software, quickly constructs high-fidelity correlated environments from a variety of input GIS data, images, and 3D models for visual, constructive, and wargame simulations. Specializing in rapid and automated terrain, the TerraTools project flow graph allows you to compile and publish terrain for use in many third-party runtimes, including JCATS, JSAF, MASA SWORD, OTBSAF, OneSAF, OpenFlight, OpenSceneGraph, Unity, VBS3, VBS4.