A group of students from the University of Texas has developed a virtual reality computer gaming experience that is controlled by head movement using a head-tracking camera and a motorised pico projector.

The students combined the projector and the head-tracking system to allow players to control the in-game perspective by looking in different directions.

In their demonstration, parts of which was posted on YouTube, they used their intuitive control mechanism for two games - a flight simulator and first person shooter (FPS) military simulator.

For the flight simulator, players use their heads like a joystick to control pitch and roll angles. So when the player tilts his or her head, the plane on the projected image responds accordingly and changes position.

Meanwhile in the FPS game, the player’s head controls their in-game character’s view. For example, by moving their head - turning, tilting or panning - the player can change the perspective, incorporating their natural movements into the game.

In their YouTube commentary, the team says, "You can see as his head moves, the projector moves and the in-game perspective also changes. Our project provides a more immersive game playing experience in many different ways."