How does a virtual reality headset work?

Virtual reality, which I’m going to define as ‘the creation of a computerized 3D environment that can be interacted with and manipulated in much the same was as the real world can’, is a pretty multi-faceted concept. There are quite a few ways to allow interaction with a virtual environment (VE), but the headset is perhaps the best known.

So, the key thing that a VR headset needs to be able to do is track the movements of the user’s head (and, where possible, their eyes) in order to allow for better interaction with the VE. After all, if I tilt my head from where I’m sitting and look at the ‘Macho Man’ Randy Savage action figure that stands on my desk, the positioning of my eye line will change my perspective of the figure. So VR, in order to be convincing, needs to work on the same principle. Continue reading »