Eye Tracking in Video Games

Ubisoft just announced Assassin’s Creed: Rogue for PC, and as far as I know, this is the first video game that supports eye tracking as an input mechanism: you basically just look at a point on the screen to focus your camera there. I’m not entirely sure how well that works when you start looking at the HUD elements, which are usually located at the corners and edges of the screen and would thus result in rather extreme, unwanted camera movements, but I suppose a small camera delay as well as a no-focus dead-zone around HUD elements could probably take care of that problem.

Sony also experimented with this same idea almost a year ago, but as far as I know their efforts never materialized in a commercial product: