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Virtual Reality


world technology is growing better and better. Every mankind in this world are
racing to be the number one in the technology development, and Virtual reality
is the one that people look for now. Virtual Reality or you can called it VR is
a technology that can make the user get to interact with the virtual world that
simulated by the computer,so the user will feel “living” on that

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advantages that Virtual Reality have and no other gadgets have is in
combination with physical environments or props, it can generate realistic
images, sounds and other sensations that simulate a user’s physical presence in
a virtual or imaginary environment.It will stimulates our sense of sight and
hearing too.

get the maximum experience of using the virtual reality, you have to make sure
you got the other support device such as headset,to get the atmoshphere in it,Controller,
to be able to touch something in the game just like our hands,thats the primary
device you need to have,the secondary device you dont need to have but you can
have it if you want,you may buy the walker, and the suit,to get the feeling of
being hit or something like that.

are four element in virtual reality(quoted from “Wirtual Reality dan
Perkembangannya”,,15 January 2018).The first element of
virtual reality is.virtual world, its a world that was made by the programmer
where we will play on.The second elemet of virtual reality is immersion, its a
sensation that could make us feel the world inside even though it just a world
made by the programmer or we      can call it a  
fictitious world..Immersion is divided by  two,first is mental impression that cause our
mental to   feel the world inside,and
physical immersion where  we could feel
physically living in that world. The
the third element of virtual reality is,Sensory Feedback its use to send the
infromation from the virtual world to the user,such as sight,hearing,and touch..The
foutrth element is interactivity its  the
response of the user that send into the virtual world so  it can interact with the user.

the VR works?VR headsets like Oculus Rift and PlayStation VR are often referred
to as HMDs, which simply means they are head mounted displays. Even with no
audio or hand tracking, holding up Google Cardboard to place your smartphone’s
display in front of your face can be enough to get you half-immersed in a
virtual world.

goal here is to create what appears to be a life size, 3D virtual environment
without the boundaries we usually associate with TV or computer screens. So
whatever way you look, the screen mounted to your face follows you. This is
unlike augmented reality, which overlays graphics onto your view of the real

is sent from the console or computer to the headset via a HDMI cable in the
case of headsets such as HTC’s Vive and the Rift. For Google’s Daydream headset
and the Samsung Gear VR, it’s already on the smartphone slotted into the

headsets use either two feeds sent to one display or two LCD displays, one per
eye. There are also lenses which are placed between your eyes and the pixels,
which is why the devices are often called goggles. In some instances, these can
be adjusted to match the distance between your eyes, varying from person to

lenses focus and reshape the picture for each eye and create a stereoscopic 3D
image by angling the two 2D images to mimic how each of our two eyes views the
world ever-so-slightly differently. Try closing one eye then the other to see
individual objects dance about from side to side and you get the idea behind

important way VR headsets can increase immersion is to increase the field of
view i.e. how wide the picture is. A 360-degree display would be too expensive
and unnecessary. Most high-end headsets make do with 100 or 110 degree field of
view, which is wide enough to do the trick.

for the resulting picture to be at all convincing, a minimum frame rate of
around 60 frames per second is needed to avoid stuttering or users feeling
sick. The current crop of VR headsets go way beyond this – Oculus is capable of
90fps, for instance, while Sony’s PlayStation VR manages 120fps.

tracking means that when you wear a VR headset, the picture in front of you
shifts as you look up, down and side to side or angle your head. A system
called 6DoF (six degrees of freedom) plots your head in terms of your X, Y and
Z axis to measure head movements forward and backwards, side to side and
shoulder to shoulder, otherwise known as pitch, yaw and roll.

headphones can be used to increase the sense of immersion. From the audio.
Because the software from developer, they make sound like goes surround them (
who use VR). So, if you hear sound from right of yours face, the headphone will
sounding just right pad, not from both of them, with this, VR user can really
know from where the sound camefrom.

tech needs low latency to be effect Why? Because head tracking is one big
advantage the premium headsets have over the likes of Cardboard other mobile VR
headsets. But the big VR players are still working out motion tracking. When
you look at VR stuff. You wanted to see other world that you never came before

a while, we’ve seen the Leap Motion accessory – which uses an infrared sensor
to track hand movements . So not just head that can see other world. We can
touch and also feel like we are on the other side of the world

Touch is a set of wireless controllers designed to make you feel like you’re
using your own hands in VR. You grab each controller and use buttons,
thumbsticks and triggers during VR games. But there is a problem from this. U
not really use your hand. Feel touching something not that far, but we can hope
scientist will make one of them So, for instance, to shoot a gun you squeeze on
the hand trigger. There is also a matrix of sensors on each controller to
detect gestures such as pointing and waving. .

input methods can include anything from hooking an Xbox controller or joystick
up to your PC, voice controls, smart gloves and treadmills such as the Virtuix
Omni, which allow you to “walk” in that world

last year,many company doing a virtual reality technology development,for those
who didn’t know there are many uses of this technology:like VR uses for video games.The first is, Playing games
using VR will be very exciting because we can feel the excitement in the game.
The second,  VR uses for watching  a movie with VR, of course the feeling must
be different.we can feel the real atmoshphere of the film.The third, Military
training, now, soldier can train with VR too,they can go to war in VR world and
doesnt need to go to the real war.The fourth, Watching a concert through
youtube.Now you dont need to go further to watch a concert with the band you
like on the youtube canal, and with VR we can feel other people excitement in
there.The fifth, Rugby Players using VR to practice.A team call Dallas Rugby
has implemented VR training on their list,the uses of it to simulate a real
match and studying the tactics.the sixth,VR for the treatment post trauma like
soldiers who had just returned home after the war.

the very least, what is obvious is VR will changing how to enjoy entertainment
such as playing games and watching videos.In the future,could it be with the
virtual reality we will be able to enter into a virtual world like the matrix
and others, we are hoping that VR will developted better and better so that the
next generation will feel the enjoyment of VR.



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