The use of computer technology to construct a realistic world is known as virtual reality (VR). In contrast to conventional user interfaces, virtual reality immerses the user in an experience. Users are absorbed and able to connect with 3D environments rather than watching a screen in front of them. The machine is turned into a gatekeeper to this artificial environment by simulating as many senses as possible, including vision, hearing, touch, and even smell. Near-real VR experiences are only limited by the availability of content and low-cost computing resources.
What is the difference between VR and AR?
The terms “virtual reality” and “augmented reality” refer to the same thing. Augmented Reality can be thought of as virtual reality with one foot in the real world: Virtual Reality provides an artificial universe to explore, while Augmented Reality simulates artificial objects in the real world.
The computer determines the location and orientation of a camera in Augmented Reality using sensors and algorithms. AR technology then superimposes the computer-generated images over a user’s view of the real world, rendering the 3D graphics as they would look from the camera’s perspective.
Similar sensors and math are used by the computer in Virtual Reality. Instead of placing a real camera in a physical setting, the location of the user’s eyes is placed in the virtual environment. The graphics react to the user’s head movement. VR technology produces a compelling, immersive environment for the user rather than compositing virtual objects and a real scene.
Virtual Reality (VR) is a technology that allows you to
The head-mounted display is the most readily identifiable feature of Virtual Reality (HMD). Humans are visual species, and the display technology that separates interactive Virtual Reality systems from conventional user interfaces is often the most significant difference. CAVE automatic virtual worlds, for example, actively project virtual content onto room-sized displays. Market and industrial wearables are the wild west, though they’re fun for people in colleges and big laboratories.
The future of wearables is unfolding, but it is still uncertain, thanks to a plethora of new hardware and software choices. The HTC Vive Pro Eye, Oculus Quest, and Playstation VR are leading the way, but Google, Apple, Samsung, Lenovo, and others may surprise the industry with new levels of immersion and usability. Whoever wins, the ease of purchasing a helmet-sized unit that can be used in a living room, workplace, or factory floor has pushed HMDs to the forefront of Virtual Reality technology.
The role of audio in virtual reality
Virtual Reality applications that are convincing need more than just graphics. A person’s sense of space is based on both hearing and vision. In reality, humans respond to audio cues faster than they do to visual cues. Accurate ambient sounds and spatial characteristics are needed to create fully immersive Virtual Reality experiences. These give a virtual environment a strong sense of presence. Put on some headphones and play around with this audio infographic from The Verge to get a sense of the binaural audio information that go into a Virtual Reality experience.
Although audio-visual knowledge is the easiest to recreate in Virtual Reality, active research and development into the other senses is still ongoing. Users will feel as though they’re walking through a simulation rather than sitting in a chair or on a sofa thanks to tactile inputs like omnidirectional treadmills. From basic spinning-weight “rumble” motors to futuristic ultrasound technology, haptic technologies, also known as kinesthetic or touch feedback technology, have evolved. Along with visual VR experiences, it is now possible to hear and sense real-life sensations.