VR is short for Virtual Reality. In other words, people are submerged into an environment that is completely fabricated. These environments are typically explored using headsets whose hardware track the wearer’s movements and the images seen within are adjusted accordingly.
Headsets have display panels for each eye, or, a single screen. Lenses blocking out the views outside the headset make the wearer feel like the scenes inside the headset are their actual world.
Often times, the wearer will have a controller in one or both hands that they can use to control things within the virtual environment. In some cases, images of the hand or hands are shown in the environment to make the experience seem even more real.
Headsets come with different measures of Field of View (FOV). The field of view is everything you can see at any given moment. In the VR world, this relates not only to everything you can see but is also discussed when it comes to the size of the screen in different headsets.
Most headset views appear to have a black border around the environment seen on the screen. Headsets with wider views, however, have less of a border, thus enhancing the feeling that the virtual environment is real.
The VR of today is not for everyone as people can experience different levels of discomfort as a result of use. Motion sickness or nausea are the most common complaints and the degree of the problem can depend on FOV, the frame rate of the display, or the weight of the headset, among other things.
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