VIRTUAL REALITY(VR)
Virtual reality is the use of computer technology to create simulated environments. Virtual reality places the user inside a three- dimensional experience. Instead of viewing a screen in front of them, users are immersed in and interact with 3D worlds. Simulation of all five senses of human beings transforms a computer into a vehicle of new worlds.
Virtual reality
Working: The VR process combines hardware and software to create immersive experiences that "fool" the eye and brain. Hardware supports sensory stimulation and simulation such as sounds, touch, smell or heat intensity, while software creates the rendered virtual environment. VR technology fools the viewer's brain into perceiving a sense of depth and accept the illusion of a multi-dimensional image.
Types of Virtual Reality: Based upon different levels of stimulation, the VR is divides into three types:
1. Non-Immersive Virtual Reality: This category is often overlooked as VR simply because it's so common. Non-immersive VR technology features a computer-generated virtual environment where the user simultaneously remains aware and controlled by their physical environment. Video games are a prime example of non-immersive VR.
2. Semi-Immersive Virtual Reality: This type of VR provides an experience partially based in a virtual environment. This type of VR makes sense for educational and training purposes with graphical computing and large projector systems, such as flight simulators for pilot trainees.
3. Fully Immersive Virtual Reality : Right now, there are no completely immersive VR technologies, but advances are so swift that they may be right around the corner. This type of VR generates the most realistic simulation experience, from sight to sound to sometimes even olfactory sensations. Car racing games are an example of immersive virtual reality that gives the user the sensation of speed and driving skills. Developed for gaming and other entertainment purposes, VR use in other sectors is increasing.
Tools of Virtual Reality: VR technology commonly consists of headsets and accessories such as controllers and motion trackers. Driven by proprietary downloadable apps or web-based VR, the technology is accessible via a web browser.
1. Hardware: Virtual reality hardware includes sensory accessories such as controllers, as well as headsets, hand trackers, treadmills and, for creators, 3D cameras.
2. Software: Developers use various software to build VR. They include VR software development kits, visualization software, content management, game engines, social platforms, and training simulator
(i) VR Content Management Systems Software: Companies use this workplace tool to collect, store and analyze VR content in a centralized location.
(ii) VR Game Engine Software: Developers use the tools to create a VR video game experience.
(iii) VR Software Development Kit (SDK): SDKS offer a base to design, build and test VR experiences.
(iv) VR Social Platforms Software: Users collaborate from remote locations in VR with these tools.
(v) VR Training Simulator Software: This software works for almost any industry for employee training in immersive environments.
(vi) VR Visualization Software: Users experience aggregated data in a virtual environment. to fully understand what data means.
3. AVR headset: It is a head-mounted device, such as goggles. A VR headset is a visual screen or display. Headsets often include state-of-the-art sound, eye or head motion-tracking sensors or cameras. There are three main types of headsets:
(i) PC-Based VR Headsets : PC headsets tend to be the highest-priced devices because they offer the most immersive experiences.
(ii) Standalone VR Headsets: All-in-one or standalone VR headsets are wireless, integrated pieces of hardware, such as tablets or phones.
(iii) Mobile Headsets: These shell devices use lenses that cover a smartphone. The lenses separate the screen to create a stereoscopic image that transforms a smartphone into a VR device.
4. 3D Mouse: A 3D mouse is a control and pointing device designed for movement in virtual 3D spaces. 3D mice employ several methods to control 3D movement and 2D pointing, including accelerometers, multi-axis sensors, IR sensors and lights.
5. Optical Trackers: Visual devices monitors the user's position. The most common method for VR systems is to use one or multiple fixed video cameras to follow the tracked object or person.
6. Wired Gloves: This type of device, worn on the hands, is also known as cyber gloves or data gloves. Various sensor technologies capture physical movement data. Like an inertial or magnetic tracking device, a motion tracker attaches to capture the glove's rotation and global position data. The glove software interprets movement. High-end versions provide haptic feedback or tactile stimulation, allowing a wired glove to be an output device.
7. Motion Controllers: These accessories allow users to act in mixed reality. Controllers allow for fine-grained interaction with digital objects because they have a precise position in space. 8. Omnidirectional Treadmills (ODTs): This accessory machine gives users the ability to move in any direction physically. ODTs allow users to move freely for a fully immersive experience in VR environments.
9. Smelling Devices: Smell devices are one of the newer accessories in the VR world. Vaqso, a Tokyo-based company, offers a headset attachment that emits odors to convey the size and shape of a candy bar. The fan-equipped device holds several different smells that can change intensity based on the screen action.
Virtual Reality VS Augmented Reality: Virtual reality (VR) is an all-enveloping artificial and fully immersive experience that obscures the natural world. Augmented reality (AR) enhances users' real-world views with digital overlays that incorporate artificial objects.
VR creates synthetic environments through sensory stimuli. Users' actions impact, at least partially, what occurs in the computer-generated environment. Digital environments reflect real places and exist apart from current physical reality.
In AR, the real world is viewed directly or via a device such as a camera to create a visual and adds to that vision with computer-generated inputs such as still graphics, audio or video. AR is different from VR because it adds to the real-world experience rather than creating a new experience from scratch.
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