Developing an augmented reality racing game

Augmented reality (AR) makes it possible to create games in which virtual objects are overlaid on the real world, and real ob-jects are tracked and used to control virtual ones. We describe the development of an AR racing game created by modifying an ex-isting racing game, using an AR infrastructure that we developed for use with the XNA game development platform. In our game, the driver wears a tracked video see-through head-worn display, and controls the car with a passive tangible controller. Other players can participate by manipulating waypoints that the car must pass and obstacles with which the car can collide. We dis-cuss our AR infrastructure, which supports the creation of AR applications and games in a managed code environment, the user interface we developed for the AR racing game, the game’s soft-ware and hardware architecture, and feedback and observations from early demonstrations