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Virtual reality (VR) is a simulated experience that employs 3D near-eye displays and pose tracking to give the user an immersive feel of a virtual world. Applications of virtual reality include entertainment (particularly video games), education (such as medical, safety or military training) and business (such as virtual meetings).
A virtual reality headset (or VR headset) is a head-mounted device that uses 3D near-eye displays and positional tracking to provide a virtual reality environment for the user. VR headsets are widely used with VR video games , but they are also used in other applications, including simulators and trainers.
Types of extended reality. Extended reality (XR) is an umbrella term to refer to augmented reality (AR), virtual reality (VR), and mixed reality (MR). The technology is intended to combine or mirror the physical world with a "digital twin world" able to interact with it, [1] [2] giving users an immersive experience by being in a virtual or augmented environment.
In virtual reality (VR), the users' perception is completely computer-generated, whereas with augmented reality (AR), it is partially generated and partially from the real world. [ 22 ] [ 23 ] For example, in architecture, VR can be used to create a walk-through simulation of the inside of a new building; and AR can be used to show a building's ...
VR simulations include exposure to zero-gravity work environments, training on how to spacewalk [73] [74] and tool usage using low-cost tool mock-ups. [ 75 ] Flight simulators are another form of VR training.
In VR, it is paramount that pose tracking is both accurate and precise so as not to break the illusion of a being in virtual world. Several methods of tracking the position and orientation (pitch, yaw and roll) of the display and any associated objects or devices have been developed to achieve this.
VR photography, the creation and viewing of wide-angle panoramic photographs, generally encompassing a full circle QuickTime VR , an image file format developed by Apple for panoramic images Videocassette recorder , a device that records and plays back analog audio and video using magnetic tape
A woman using the Manus VR glove development kit in 2016. In virtual reality (VR), immersion is the perception of being physically present in a non-physical world. The perception is created by surrounding the user of the VR system in images, sound or other stimuli that provide an engrossing total environment.