Tech Explained: Virtual Reality

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By now, most people have heard of Virtual Reality (VR), and chances are that many have also tried it out – whether using a head mounted display like the Oculus Rift, or simply attaching Google Cardboard to a smartphone. Virtual Reality is a combination of hardware that uses sensors, displays and a computer, console or phone; and software that controls the elements of the experience.
In VR, video images are sent to the headset, where they create a stereoscopic display. This works by displaying two slightly different angles of the scene to each eye, simulating depth. At the same time, the scene refreshes at least 60 times per minute. This is called frame rate and is what gives the illusion of movement. The greater the frame rate, the more realistic the VR appears.

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