VR uses immersive technology. Immersive technology is a technology that uses 360 space to expand reality or set up for a new reality (Covarrubias, 2020). When experience VR, users have a feeling like they are blocked out from the outside world and dive into the content of the VR world.
There are four major parts of a VR system:
- A stereoscopic display is a display that gives you a depth perception of the VR world. The device such as Oculus Rift and HTC Vive headset that gives you the display to send the images to your retina.
- Motion tracking is sophisticated hardware in your headset that can track the movement of your head and body. There are two kinds of position tracking in VR headsets and input devices: 3 degrees-of-freedom and 6 degrees-of-freedom ( Google VR, 2020). Degrees of freedom are the number of fundamental ways of an object that can move in 3D space.
- Input devices can give us interaction with the VR world. There are some devices like game controllers, hand-tracking motion sensors, and body tracking sensors that can give you the interaction that you want in the VR environment.
- 3D VR Software is the software that needed to install to process data into the VR headset.