Virtual Reality: Difference between revisions
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'''Virtual Reality''' ('''VR''') is a computer-simulated artificial multisensory 3D environment that can mimic the properties and imagery of the physical world, be completely based in fantasy, or a mix of both. It involves technology that uses computer-generated environments to simulate a physical presence in a virtual world. The system uses position-tracking and responds to the user’s inputs. In VR, the senses are temporarily fooled into believing that the artificial environment is real. The goal of a true VR experience is to create [[presence]] - the feeling of physically being somewhere else, of being in another reality <ref name=”0”> Bierbaum, A.D. (2000). VR Juggler: A Virtual Platform for Virtual Reality Application Development. Masters of Science Thesis, Iowa State University, Iowa</ref>. | |||
'''Virtual Reality''' | |||
Virtual Reality is an interactive and immersive medium that can be used to create unique experiences that are unattainable elsewhere. VR has the power to transform [[games]], [[films]] and other forms of media. Some enthusiasts call VR the "ultimate input/output device" or the "last medium" because any subsequent medium can be created within VR, using only software <ref name=”0”></ref> <ref name=”6”></ref>. | Virtual Reality is an interactive and immersive medium that can be used to create unique experiences that are unattainable elsewhere. VR has the power to transform [[games]], [[films]] and other forms of media. Some enthusiasts call VR the "ultimate input/output device" or the "last medium" because any subsequent medium can be created within VR, using only software <ref name=”0”></ref> <ref name=”6”></ref>. | ||
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==Hardware Technologies== | ==Hardware Technologies== | ||
===Head-mounted Display=== | ===Head-mounted Display=== | ||
VR is created by '''[[head-mounted display]]s''' (HMDs) such as the [[Oculus Rift]]. HMDs utilize [[stereoscopic displays]] and specialized [[lenses]] along with [[#Motion Tracking|motion tracking hardware]] to give the illusion that the user is physically inside the virtual world. | VR is currently created by '''[[head-mounted display]]s''' (HMDs) such as the [[Oculus Rift]]. HMDs utilize [[stereoscopic displays]] and specialized [[lenses]] along with [[#Motion Tracking|motion tracking hardware]] to give the illusion that the user is physically inside the virtual world. | ||
To create the illusion of depth, a display is placed very close to the users' eyes, covering their entire field of view. Two images that are very similar but have different perspectives are channeled into each eye to create [[parallax]], the visual phenomenon where our brains perceive depth based on the difference in the apparent position of objects. | To create the illusion of depth, a display is placed very close to the users' eyes, covering their entire field of view. Two images that are very similar but have different perspectives are channeled into each eye to create [[parallax]], the visual phenomenon where our brains perceive depth based on the difference in the apparent position of objects. | ||
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===Motion Tracking=== | ===Motion Tracking=== | ||
HMD [[tracking|tracks]] the movement of your head and updates the rendered scene based on its orientation and location. This process is similar to how we look around in real life. There are 2 types of tracking: [[rotational|rotational tracking]] and [[positional tracking|positional]]. | |||
[[Rotational tracking]] tracks the 3 rotational movements: pitch, yaw, and roll. It is performed by [[IMUs]] such as [[accelerometer]]s, [[gyroscope]]s and [[magnetometer]]s. | [[Rotational tracking]] tracks the 3 rotational movements: pitch, yaw, and roll. It is performed by [[IMUs]] such as [[accelerometer]]s, [[gyroscope]]s and [[magnetometer]]s. | ||
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==Platforms== | ==Platforms== | ||
'''[[WebXR]]''' | |||
'''[[visionOS]]''' - '''[[Apple Vision Pro]]''' | '''[[visionOS]]''' - '''[[Apple Vision Pro]]''' | ||
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[[VR Headset Demo Locations]] | [[VR Headset Demo Locations]] | ||
== | ==VR Headsets== | ||
{{see also| | {{see also|VR Headsets}} | ||
{{: | {{:VR Headsets}} | ||
==Apps== | ==Apps== | ||