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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 world (also called a virtual space) is a computer-simulated environment [ 1] which may be populated by many simultaneous users who can create a personal avatar [ 2] and independently explore the virtual world, participate in its activities, and communicate with others. [ 3][ 4] These avatars can be textual, [ 5] graphical ...
Virtual reality is being applied to a wide range of medical areas, including medical education, training, surgery and diagnostic assistance for heath staff. For patients it is a good way of using it for their rehabilitation and training. [ 15] VR began to appear in rehabilitation in the 2000s.
Avatars socialising in the virtual world Second Life The metaverse is a loosely defined term referring to virtual worlds in which users represented by avatars interact, usually in 3D and focused on social and economic connection. The term metaverse originated in the 1992 science fiction novel Snow Crash as a portmanteau of "meta" and "universe". In Snow Crash, the metaverse is envisioned as a ...
Virtual reality headset. 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.
Standalone – devices that have all necessary components to provide virtual reality experiences integrated into the headset. Mainstream standalone VR platforms include: Oculus Mobile SDK, developed by Oculus VR for its own standalone headsets and the Samsung Gear VR. (The SDK has been deprecated in favor of OpenXR, released in July 2021.)
Second Life is an online multimedia computing platform that allows people to create an avatar for themselves and then interact with other users and user-created content within a multi-user online virtual world. Developed and owned by the San Francisco –based firm Linden Lab and launched on June 23, 2003, it saw rapid growth for some years and ...
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.
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