Virtual reality\u00c2\u00a0(VR) is a\u00c2\u00a0simulated\u00c2\u00a0experience that can be similar to or completely different from the real world.\u00c2\u00a0Applications of virtual reality\u00c2\u00a0can include entertainment (i.e.\u00c2\u00a0video games) and educational purposes (i.e. medical or military training). Other, distinct types of VR style technology include\u00c2\u00a0augmented reality\u00c2\u00a0and\u00c2\u00a0mixed reality.<\/p>\n
Currently standard virtual reality systems use either\u00c2\u00a0virtual reality headsets\u00c2\u00a0or multi-projected environments to generate realistic images, sounds and other sensations that simulate a user’s physical presence in a virtual environment. A person using virtual reality equipment is able to look around the artificial world, move around in it, and interact with virtual features or items. The effect is commonly created by VR headsets consisting of a\u00c2\u00a0head-mounted display\u00c2\u00a0with a small screen in front of the eyes, but can also be created through specially designed rooms with multiple large screens. Virtual reality typically incorporates\u00c2\u00a0auditory\u00c2\u00a0and\u00c2\u00a0video feedback, but may also allow other types of sensory and force feedback through\u00c2\u00a0haptic technology.<\/p>\n
The\u00c2\u00a0Virtual Reality Modelling Language\u00c2\u00a0(VRML), first introduced in 1994, was intended for the development of “virtual worlds” without dependency on headsets.\u00c2\u00a0The\u00c2\u00a0Web3D\u00c2\u00a0consortium was subsequently founded in 1997 for the development of industry standards for web-based 3D graphics. The consortium subsequently developed\u00c2\u00a0X3D\u00c2\u00a0from the VRML framework as an archival,\u00c2\u00a0open-source\u00c2\u00a0standard for web-based distribution of VR content.\u00c2\u00a0WebVR\u00c2\u00a0is an experimental\u00c2\u00a0JavaScript\u00c2\u00a0application programming interface\u00c2\u00a0(API) that provides support for various virtual reality devices, such as the HTC Vive, Oculus Rift, Google Cardboard or OSVR, in a\u00c2\u00a0web browser.<\/p>\n
Modern virtual reality headset displays are based on technology developed for smartphones including:\u00c2\u00a0gyroscopes\u00c2\u00a0and motion sensors for tracking head, body, and\u00c2\u00a0hand positions; small\u00c2\u00a0HD\u00c2\u00a0screens for stereoscopic displays; and small, lightweight and fast computer processors. These components led to relative affordability for independent VR developers, and lead to the 2012 Oculus Rift Kickstarter offering the first independently developed VR headset.<\/p>\n
Independent production of VR images and video has increased by the development of\u00c2\u00a0omnidirectional cameras, also known as 360-degree cameras or VR cameras, that have the ability to record\u00c2\u00a0360 interactive photography, although at low-resolutions or in highly compressed formats for online streaming of\u00c2\u00a0360 video.\u00c2\u00a0In contrast,\u00c2\u00a0photogrammetry\u00c2\u00a0is increasingly used to combine several high-resolution photographs for the creation of detailed 3D objects and environments in VR applications.<\/p>\n
To create a feeling of immersion, special output devices are needed to display virtual worlds. Well-known formats include head-mounted displays or the CAVE. In order to convey a spatial impression, two images are generated and displayed from different perspectives (stereo projection). There are different technologies available to bring the respective image to the right eye. A distinction is made between active (e.g.\u00c2\u00a0shutter glasses) and passive technologies.<\/p>\n
Special input devices are required for interaction with the virtual world. These include the\u00c2\u00a03D mouse, the\u00c2\u00a0wired glove,\u00c2\u00a0motion controllers, and\u00c2\u00a0optical tracking\u00c2\u00a0sensors. Controllers typically use optical tracking systems (primarily\u00c2\u00a0infrared cameras) for location and navigation, so that the user can move freely without wiring. Some input devices provide the user with\u00c2\u00a0force feedback\u00c2\u00a0to the hands or other parts of the body, so that the human being can orientate himself in the three-dimensional world through haptics and sensor technology as a further sensory sensation and carry out realistic simulations. This allows for the viewer to have a sense of direction in the artificial landscape. Additional haptic feedback can be obtained from\u00c2\u00a0omnidirectional treadmills\u00c2\u00a0(with which walking in virtual space is controlled by real walking movements) and vibration gloves and suits.
\nVirtual reality cameras can be used to create\u00c2\u00a0VR photography\u00c2\u00a0using\u00c2\u00a0360-degree panorama videos. 360-degree camera shots can be mixed with virtual elements to merge reality and fiction through special effects.\u00c2\u00a0VR cameras are available in various formats, with varying numbers of lenses installed in the camera.<\/p>\n
There are many health and safety considerations of virtual reality. A number of unwanted symptoms have been caused by prolonged use of virtual reality,\u00c2\u00a0and these may have slowed proliferation of the technology. Most virtual reality systems come with consumer warnings, including: seizures; developmental issues in children; trip-and-fall and collision warnings; discomfort; repetitive stress injury; and interference with medical devices.\u00c2\u00a0Some users may experience twitches, seizures or blackouts while using VR headsets, even if they do not have a history of epilepsy and have never had blackouts or seizures before. One in 4,000 people, or .025%, may experience these symptoms. Since these symptoms are more common among people under the age of 20, children are advised against using VR headsets. Other problems may occur in physical interactions with one’s environment. While wearing VR headsets, people quickly lose awareness of their real-world surroundings and may injure themselves by tripping over, or colliding with real-world objects.<\/p>\n
VR headsets may regularly cause eye fatigue, as does all screened technology, because people tend to blink less when watching screens, causing their eyes to become more dried out.\u00c2\u00a0There have been some concerns about VR headsets contributing to myopia, but although VR headsets sit close to the eyes, they may not necessarily contribute to nearsightedness if the focal length of the image being displayed is sufficiently far away.<\/p>\n
The relationship between virtual reality and its underage users is controversial and unexplored. In the meantime, children are becoming increasingly aware of VR, with the number in the USA having never heard of it dropping by half from Autumn 2016 (40%) to Spring 2017 (19%).<\/p>\n
Valeriy Kondruk, CEO of VR travel platform Ascape, says the app downloads in March 2020 increased by 60% compared to December 2019 and doubled in comparison with January 2020. According to Kondruk, normally, the busiest month for VR companies is December, which is associated with winter holidays and people spending more time at home.<\/p>\n
In early 2016, virtual reality headsets became commercially available with offers from, for example, Facebook (Oculus), HTC and Valve (Vive) Microsoft (HoloLens), and Sony (Morpheus). At the time and to this day, these brands have different age instructions for users, e.g. 12+ or 14+, this indicates a completely self-regulatory policy.<\/p>\n
Studies show that young children, compared to adults, may respond cognitively and behaviorally to immersive VR in ways that differ from adults. VR places users directly into the media content, potentially making the experience very vivid and real for children. For example, children of 6\u00e2\u20ac\u201c18 years of age reported higher levels of presence and \u00e2\u20ac\u0153realness\u00e2\u20ac\u009d of a virtual environment compared with adults 19\u00e2\u20ac\u201c65 years of age.<\/p>\n
The above is a brief about Virtual Reality. Watch this space for more updates on the latest trends in Technology.<\/p>\n","protected":false},"excerpt":{"rendered":"
Virtual reality\u00c2\u00a0(VR) is a\u00c2\u00a0simulated\u00c2\u00a0experience that<\/p>\n","protected":false},"author":1,"featured_media":1749,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[933,7,225],"tags":[934,18,226],"class_list":["post-1747","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-simulated-experience","category-techtrends","category-virtual-reality","tag-simulated-experience","tag-technology","tag-virtual-reality"],"_links":{"self":[{"href":"https:\/\/blog.amt.in\/index.php\/wp-json\/wp\/v2\/posts\/1747","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/blog.amt.in\/index.php\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/blog.amt.in\/index.php\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/blog.amt.in\/index.php\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/blog.amt.in\/index.php\/wp-json\/wp\/v2\/comments?post=1747"}],"version-history":[{"count":1,"href":"https:\/\/blog.amt.in\/index.php\/wp-json\/wp\/v2\/posts\/1747\/revisions"}],"predecessor-version":[{"id":1748,"href":"https:\/\/blog.amt.in\/index.php\/wp-json\/wp\/v2\/posts\/1747\/revisions\/1748"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/blog.amt.in\/index.php\/wp-json\/wp\/v2\/media\/1749"}],"wp:attachment":[{"href":"https:\/\/blog.amt.in\/index.php\/wp-json\/wp\/v2\/media?parent=1747"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/blog.amt.in\/index.php\/wp-json\/wp\/v2\/categories?post=1747"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/blog.amt.in\/index.php\/wp-json\/wp\/v2\/tags?post=1747"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}