Who definition of virtual reality?

Virtual reality (VR) is a simulated experience that can be similar or completely different from the real world. Virtual reality applications include entertainment (especially video games), education (such as medical or military training), and business (such as virtual meetings). Different types of VR-style technology include augmented reality and mixed reality, sometimes referred to as extended reality or XR. Virtual reality (VR) is an artificial and fully immersive experience that hides the natural world.

Augmented reality (AR) enhances users' real-world views with digital overlays that incorporate artificial objects. This chapter analyzes that virtual reality is an interactive and participatory environment that could help many remote users share a virtual place. The hardware supports sensory stimulation and simulation, such as sounds, touch, smell, or heat intensity, while the software creates the rendered virtual environment. Numerous precedents for the suspension of disbelief in an artificial world in art and entertainment media preceded virtual reality.

Virtual reality is most commonly used in entertainment applications such as video games, 3D cinema, dark attractions, and social virtual worlds. In theory, if a virtual world does not rely on users who only use headphones, it can greatly increase its size; the number of people who have access to a web browser or smartphone is much greater than that of any headset. A virtual reality headset typically includes two small high-resolution OLED or LCD monitors that provide separate images for each eye for stereoscopic graphics representing a 3D virtual world, a binaural audio system, real-time positional and rotational head tracking for six degrees of movement. David Em became the first artist to produce navigable virtual worlds at NASA's Jet Propulsion Laboratory (JPL) from 1977 to 1984.Project leader Eric Gullichsen left in 1990 to found Sense8 Corporation and develop the WorldToolkit virtual reality SDK, which offered the first real-time graphics with Texture mapping on a PC, and was widely used in industry and academia.

In addition, there are conceptual and philosophical considerations and implications associated with the use of virtual reality. Desktop-based virtual reality involves displaying a 3D virtual world on a normal desktop screen without the use of any specialized VR positional tracking equipment. Currently, standard virtual reality systems use virtual reality headsets or multi-projected environments to generate realistic images, sounds, and other sensations that simulate a user's physical presence in a virtual environment. Simulated reality is a hypothetical virtual reality that is as immersive as real reality, allowing for an advanced realistic experience or even a virtual eternity.

Within a few short years, Sutherland contributed the technological artifact most frequently identified with virtual reality, the head-mounted 3D computer screen. To improve the sense of immersion, portable multi-wire cables offer haptics for complex geometries in virtual reality. Virtual reality (VR) technology is a growing force beyond entertainment and an important tool in education, science, commerce, manufacturing and more. A person using virtual reality equipment can look around the artificial world, move around it, and interact with virtual features or elements.