Everything that we know about our reality comes by way of our senses. In other words, our entire experience of reality is simply a combination of sensory information and our brains sense-making mechanisms for that information. It stands to reason then, that if you can present your senses with made-up information, your perception of reality would also change in response to it. You would be presented with a version of reality that isn’t really there, but from your perspective it would be perceived as real. Something we would refer to as a virtual reality.
Nintendo's Labo series of games/arts-and-crafts sets for the Nintendo Switch have interested us since the first Labo Variety Kit came out. You build your own controllers with cardboard and play games using the Switch and motion-sensing Joy-Con controllers. Now Nintendo has returned to VR (a field it hasn't set foot in since the ill-fated Virtual Boy) with its fourth Labo package, the Labo VR Kit. https://www.aliexpress.com/item/Suntrsi-USB-Flash-Drive-64GB-Metal-Steel-Pen-Drive-High-Speed-Pendrive-Key-Chain-USB-Stick/32398155049.html
Microsoft HoloLens is shaping up to be another formidable competitor in the HMD market. Unlike VR tech, Microsoft based their display on holographic technology. The original Hololens was more proof of concept than consumer device, and the recently announced Hololens 2 is again eschewing the public in favor of enterprise/government uses. The Hololens 2 will feature upgraded visuals, including a much-expanded field of view — music to fans of the original device, who settled on the limited FOV as the main drawback of the device. https://www.aliexpress.com/item/0-26mm-9H-tempered-glass-For-iphone-4s-5-5s-6-6s-plus-screen-protector-protective/32502557737.html
Naming discrepancies aside, the concept remains the same - using computer technology to create a simulated, three-dimensional world that a user can manipulate and explore while feeling as if he were in that world. Scientists, theorists and engineers have designed dozens of devices and applications to achieve this goal. Opinions differ on what exactly constitutes a true VR experience, but in general it should include:
Virtual Reality is a fascinating way to travel using nothing more than the power of technology. With a headset and motion tracking, VR lets you look around a virtual space as if you're actually there. It's also been a promising technology for decades that's never truly caught on. That's constantly changing with the current wave of VR products, especially as the biggest names in the industry are starting to really hone and tweak their headsets.
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. shutter glasses) and passive technologies (e.g. polarizing filters or Infitec).
Fast Five and Star Trek Beyond director Justin Lin put together this short film for Google's Spotlight Story program in 2016, and it's still one of the more ambitious live action VR shorts out there. Lin opts to use 360 cameras to put you in what feels like a big budget blockbuster, with an alien hellbent on chasing you through the subway. It's absolutely thrilling.
Augmented reality (AR) is a type of virtual reality technology that blends what the user sees in their real surroundings with digital content generated by computer software. The additional software-generated images with the virtual scene typically enhance how the real surroundings look in some way. AR systems layer virtual information over a camera live feed into a headset or smartglasses or through a mobile device giving the user the ability to view three-dimensional images. https://www.youtube.com/watch?v=lGmL_pj4g6c&t=1s
By 1994, Sega released the Sega VR-1 motion simulator arcade attraction, in SegaWorld amusement arcades. It was able to track head movement and featured 3D polygon graphics in stereoscopic 3D, powered by the Sega Model 1 arcade system board. Apple released QuickTime VR, which, despite using the term "VR", was unable to represent virtual reality, and instead displayed 360 photographic panoramas. https://www.youtube.com/watch?v=IapStzmiw1w&t=1s