Changes

A limitation of virtual reality technology is that the motion tracking is inaccurate. It goes through a filtering process which removes the transients. This gives a floating dizzying effect. This is visible in 2D movies made of VR experiences.<ref name="b678">{{cite web | title=Henry a VR Experience | website=YouTube | date=2024-03-06 | url=https://www.youtube.com/watch?v=IUY2yI5F16U | access-date=2024-08-26}}</ref> This is present in IMU+optical tracking systems including the [[Oculus Rift CV1]], the [[HTC Vive]], the [[Valve Index]], and the [[Quest 2]].

A limitation of virtual reality technology is that the motion tracking is inaccurate. It goes through a filtering process which removes the transients. This gives a floating dizzying effect. This is visible in 2D movies made of VR experiences.<ref name="b678">{{cite web | title=Henry a VR Experience | website=YouTube | date=2024-03-06 | url=https://www.youtube.com/watch?v=IUY2yI5F16U | access-date=2024-08-26}}</ref> This is present in IMU+optical tracking systems including the [[Oculus Rift CV1]], the [[HTC Vive]], the [[Valve Index]], and the [[Quest 2]].

==Hardware technologies==

==Technology==

===Head-mounted display===

===Head-mounted display===

VR is enabled 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 enabled 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.  

The headset tracks the movement of your head and changes the images shown on the display according to the movement. This process creates the sensation that users are located within the virtual environment. Users of these gadgets are able to interact with the virtual environments. Various input methods, from the traditional game controllers and keyboards to the futuristic hand gestures and voice commands, are available or under development.

The headset tracks the movement of your head and changes the images shown on the display according to the movement. This process creates the sensation that users are located within the virtual environment. Users of these gadgets are able to interact with the virtual environments. Various input methods, from the traditional game controllers and keyboards to the futuristic hand gestures and voice commands, are available or under development.

===Position and rotation tracking===

===3D tracking===

There are 2 classifications of tracking: [[rotational tracking]] and [[positional tracking|positional]].  

There are 2 classifications of tracking: [[rotational tracking]] and [[positional tracking|positional]].  

Motion tracking can also be used to track your hands and rest of your body through various control peripherals.

Motion tracking can also be used to track your hands and rest of your body through various control peripherals.

==Theory==

==Theory==