Comparing: Virtual Reality

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Virtual reality

Virtual reality (VR) is a computer-generated simulated three-dimensional environment that enables users to interact with and immerse themselves in artificial worlds mimicking or diverging from physical reality . Immersion is achieved primarily through head-mounted displays (HMDs) equipped with high-resolution screens (often OLED with refresh rates of 90 Hz or higher) that present separate stereoscopic images to each eye, creating depth perception via binocular disparity and motion parallax. Inside-out tracking systems, utilizing onboard cameras, accelerometers, gyroscopes, and other sensors, monitor head, hand, and body movements in real time. Software renders dynamic 3D environments that respond instantaneously to user inputs, while spatial audio and haptic feedback further enhance realism and the sense of presence. It is typically facilitated by head-mounted displays , sensors for tracking head and body movements, and input devices. Emerging from mid-20th-century innovations in display and sensor technologies, VR has progressed through prototypes like the 1968 Sword of Damocles head-mounted display