Stereoscopic display in the context of "Virtual reality game"

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⭐ Core Definition: Stereoscopic display

Stereoscopy, also called stereoscopics or stereo imaging, is a technique for creating or enhancing the illusion of depth in an image by means of stereopsis for binocular vision. The word stereoscopy derives from Ancient Greek στερεός (stereós) 'firm, solid' and σκοπέω (skopéō) 'to look, to see'. Any stereoscopic image is called a stereogram. Originally, stereogram referred to a pair of stereo images which could be viewed using a stereoscope.

Most stereoscopic methods present a pair of two-dimensional images to the viewer. The left image is presented to the left eye and the right image is presented to the right eye. When viewed, the human brain perceives the images as a single 3D view, giving the viewer the perception of 3D depth. However, the 3D effect lacks proper focal depth, which gives rise to the vergence-accommodation conflict.

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👉 Stereoscopic display in the context of Virtual reality game

A virtual reality game or VR game is a video game played on virtual reality (VR) hardware. Most VR games are based on player immersion, typically through a head-mounted display unit or headset with stereoscopic displays and one or more controllers.

The video game industry made early attempts at VR in the 1990s, most notably with Sega's VR-1 and Virtuality for arcades, along with unsuccessful attempts for home consoles with the Sega VR prototype and Nintendo's Virtual Boy. With the introduction of the first consumer-ready home VR product, the Oculus Rift, in 2013, home VR games soon followed, including existing games adapted for the VR hardware, and new games designed directly for VR. While VR hardware and games grew modestly for the remainder of the 2010s, Half-Life: Alyx, a full VR game developed by Valve and released in 2020, was considered the killer application for VR games.

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Stereoscopic display in the context of Vergence-accommodation conflict

Vergence-accommodation conflict (VAC), also known as accommodation-vergence conflict, is a visual phenomenon that occurs when the brain receives mismatching cues between vergence and accommodation of the eye. This commonly occurs in virtual reality devices, augmented reality devices, 3D movies, and other types of stereoscopic displays and autostereoscopic displays. The effect can be unpleasant and cause eye strain.

Two main ocular responses can be distinguished: vergence of eyes, and accommodation. Both of these mechanisms are crucial in stereoscopic vision. Vergence or independent inward/outward rotation of eyes is engaged to fixate on objects and perceive them as single. Incorrect vergence response can cause double vision. Accommodation is the eye's focusing mechanism and it is engaged to produce a sharp image on a retina. Both of these mechanisms are neurally linked forming the accommodation-convergence reflex of eyes. One can distinguish vergence distance‍—‍a distance of a point towards which both eyes are converging, and an accommodation distance‍—‍a distance of a region in space towards which the focus or refractive power of the crystalline lens has been adjusted to produce a sharp image on the retina.

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LINKED FROM (PARENTS)
← Vergence-accommodation conflict ← Virtual reality game
LINKS TO (CHILDREN)
Aerial photography → Boston → Kaiserpanorama → Depth perception → Stereopsis → Binocular vision → Ancient Greek language → Stereoscope → Two-dimensional → Three-dimensional space → Vergence-accommodation conflict →