The engine executable file is named TerrainEngine.exe. On start, the program attempts to read the configuration from terrain.ini. A default configuration is used if the file doesn't exist. The engine then tries to load the heightmap and the texture map (if texture mapping is enabled) from disk. If an error occurs, an information message is displayed and the engine terminates.
After a successful start the user receives control over the camera. The camera is controlled using the mouse and keyboard, as specified in the configuration file.
Press the escape key to terminate the application.
During execution, information about the engine is displayed at the top of the screen.
The first number indicates the number of rendered frames per second. LLoD is the current local level of detail, GLoD the current global level of detail.
Triangles indicates the number of triangles sent to the rendering hardware for each frame. Similarly, T-Fans is the number of triangle fans.