Is it possible to have FPS (first person shooter) movement using keys, mouse, and/or joystick? I created a 3D model of a large house with interior and I would like to "walk" through the house. The Lite-C tutorials didn't help me. I tried to use code from Workshop 13, 14, 15, 18, and 24. Is there a bug on using hollow boxes as skyboxes? Something was wrong with the display of the sky texture on the hollow box.