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ProjectBlog: All you need to know about Virtual Reality

Blog: All you need to know about Virtual Reality


The definition of virtual reality comes, naturally, from the definitions for both ‘virtual’ and ‘reality’. The definition of ‘virtual’ is near and reality is what we experience as human beings. So the term ‘virtual reality’ basically means ‘near-reality’. This could, of course, mean anything but it usually refers to a specific type of reality emulation.

Virtual reality is the term used to describe a three-dimensional, computer-generated environment which can be explored and interacted with by a person. That person becomes part of this virtual world or is immersed within this environment and is able to manipulate objects or perform a series of actions.

KEY FEATURES OF VIRTUAL REALITY EXPERIENCE

1. Virtual World

A virtual world is a three-dimensional environment that is often, but not necessarily, realized through a medium (i.e. rendering, display, etc.) where one can interact with others and create objects as part of that interaction.

2. Immersion

Virtual reality immersion is the perception of being physically present in a non-physical world. It encompasses the sense of presence, which is the point where the human brain believes that it is somewhere it is really not. This is accomplished through purely mental and/or physical means.

3. Sensory Feedback

Virtual reality requires as many of our senses as possible to be simulated. These senses include vision (visual), hearing (aural), touch (haptic), and more. Properly stimulating these senses requires sensory feedback, which is achieved through integrated hardware and software (also known as inputs).

4. Interactivity

The element of interaction is crucial for virtual reality experiences to provide users with enough comfort to naturally engage with the virtual environment. If the virtual environment responds to a user’s action in a natural manner, excitement and senses of immersion will remain. If the virtual environment cannot respond quickly enough, the human brain will quickly notice and the sense of immersion will diminish.

HOW DOES IT WORK?

The primary subject of virtual reality is simulating the vision. Every headset aims to perfect their approach to creating an immersive 3D environment. Each VR headset puts up a screen (or two — one for each eye) in front of eyes thus, eliminating any interaction with the real world. Two autofocus lenses are generally placed between the screen and the eyes adjust based on individual eye movement and positioning. The visuals on the screen are rendered either by using a mobile phone or HDMI cable connected to a PC.

To create a truly immersive virtual reality there are certain prerequisites — a frame rate of minimum 60fps, an equally competent refresh rate and minimum 100-degree field of view (FOV) (though 180 degrees is ideal). The frame rate is the rate at which the GPU can process the images per second, the screen refresh rate is the pace of the display to render images, and FOV is the extent to which the display can support eye and head movement.

In the future, we will see rapid advancements in creating a truly immersive digital experience. With major players like Google, Microsoft, Oculus, and HTC making tremendous efforts to improve the current capabilities, we are not far from achieving a virtual reality that would feel more like the real world.

IMPORTANCE OF VIRTUAL REALITY IN MODERN ERA

Gaming

The most obvious use of virtual reality in gaming.

It is far from being supported by all games. But if you get the chance to try it, take it — it offers an intense, immersive and impressive experience that elevates gaming to a whole new level.

Watching films

Something that has been talked about with wide-eyed wonder is fully immersive VR movies.

Think of 3D films, then think of actual, true 3D — a movie world you can explore at your own pace, looking at the action from different angles and paying attention to whatever you choose to.

Visiting’ places

Think how compulsive it can be to just look around the world on Google Maps. Then think of how much more immersive it would be to do the same through your own eyes… sort of.

VR would allow remote tours of museums for people unable to get to the building and would let estate agents give potential buyers a look around a property without them having to leave the comfort of their own home.

Space exploration

The potential to fly round in space using a Google Maps-style interface would be fun and interesting.

But a space agency putting cameras all over their equipment and sending them out to the great black unknown, with scientists on Earth viewing and navigating through a VR headset, would allow for space exploration in a way we’ve never seen before.

Improving the quality of life

There are many people out there who, for whatever reason, aren’t capable of living a normal life. They deserve to be able to live, to explore, and to experience the wonder of the world (and beyond). VR could help them achieve such experiences.

Virtual Reality In Today’s World

Virtual Reality plays a crucial role in the everyday lives of the world’s population. Virtual Reality products are now used everywhere in today’s world often to test product designs and simulate user interaction. The scope for Virtual Reality goes beyond today’s technology which actually helped it to come a long way. Although it has not yet broken into true mass appeal. Lastly, I would like to conclude with:

Virtual reality is something which is not in real but appears to be real.

http://www.techacker.net/road-to-virtual-reality/

Source: Artificial Intelligence on Medium

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