Doris is a Lua script driven OpenGL viewer with GUI widget extensions. Lua is a fast, powerful, portable scripting language. Lua bindings are provided to OpenGL, GLUT, GLUI (a GL widget library) and Luasocket (networking).
GL-117 is an OpenGL- and SDL-based action flight simulator written in C++. It provides a random terrain generator, lighting effects, sounds, and joystick support.