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Virtual Reality - The computer generated environment

Par Akhilesh Goveesh SEECHURN Publié le 15/08/2016 à 20:51:47 Noter cet article:
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Virtual Reality known also as immersive multimedia and computer-generated is a technology which as it name says is a reality which is virtual. By definition those two words means a reality which is not real but is a sort of emulation of it. Virtual reality is use to generate a real life like environment which simulates the real world that is it makes the user feels that he is that the generated environment is the actual environment he is in. This is achieved by allowing the user to interact with the environment. The interactions include the involvement of senses such as the sense of sight, touch, hearing and smell. This concept existed since long time ago. Virtual reality has evolved a lot from what it started to what it is nowadays. It started with panoramic paintings which was leaded to the use of 360-degree murals which was used to recreate a scene of an event by enabling the viewer to be at the center of the painting. Stereoscopic photos n 1938 by Charles Wheatstone. The Stereoscopic was used to create three-dimensional depth view using two-dimensional images. Since then virtual reality has been greatly been improved to make to make it more 'real life' like by increasing the felling of being immersed in it with the release of gadgets like the lenticular stereoscope, the View-Master and other devices.

VR Head Mounted display

Nowadays VR(Virtual Reality) is commonly referred as a big set which is place around the head and which covers the eyes of the users like glasses. This trend began in 1960 with the Telesphere Mask which was the first VR head mounted display. There is a lot of fierce competition between companies in an attempt to get a big share of the VR market and this is making the improvements to be rather quick.

There is different kind of VR manufactured by companies namely Google, htc, Samsung, Sony, LG.

Google VR

Google proceded by making a rather simple VR headset named the Google Cardboard. It is a VR headset made simple and not expensive. It is built using cardboard so that it is affordable and can be folded for portability.

To use the device you need a smartphone either android smatphone with android 4.1 or higher or iPhone with iOS 8.0 or higher. It is a box shape cadrboard with a head strap which allow you to fit it on your head. To use it you must firstly fit in your smart phone in it at an appropriate distance from the lens which is present in it. The distance at which the phone is place is important as the VR works by refracting the light rays fro the mobile phone to your eyes to make a 3D optical illusion.

The image displayed varies as you move your head as you wont be able to touch your phone's screen as it is fitted into the VR set but this works only if your smart phone has gyroscope sensor which is a sensor use to detect motion of the device.

Below is an image displaying how you should place your smart phone in the VR set:

So in overall the Google cardboard is a good device if you are searching for a cheap way to use your convert your mobile device into a virtual reality supported device.

Computer supported VR set

If you want to use the to use a VR headset for PC gaming then the Google cardboard is not the one which you need as it works only with smart phone so then you will have to buy more expensive ones like the HTC vive, Oculust Rift, Samsung Gear VR. These ones are much more confortable to wear and offer a much better experience. With these headset you can have a much better experience when using your computer. It makes watching movies to be more enjoyable as you have the video that surrounds you.

It is very helpful in cases where you have to design something such as a mechanical device as you can easily view it through various angles using a VR headset. It enables you to do training in various environment without having to be physically present there. The benefits in this case is that it is more cost efficient, safer and less time consuming.

And as expected the VR has made a big impact on the gaming market but not all computers can support it as the minimum requirements are rather quite demanding and not all games support virtual reality. The increase in VR supported games shows how large the impact has been.

Conclusion

The virtual reality gear has recently made a really big impact on the world of technology. It has is being use in various sector such as in the production environment (to develop/test devices), in educational sector and in the entertainment sector(movies, games, tourism,...). Today it is one of the hottest technology on the market attracting customers and manufacturers. This is a technology with a lot of potential which has to be exploited and use accordingly.

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