Who knows about 3D glasses (virtual reality helmet)?

Question

3D

Guys, who understands the topic? And then I can not understand.
There are points in general with a wide range of prices. Can someone explain popularly what they are, what is their difference, and what to look for when choosing?
And that is, there are some points for 50 bucks, and there are for 1000. And how is the result different?
And there are also glasses where the phone is inserted - I still do not understand what it gives. Is the phone there like what it is, just for processor power, or is the screen also involved?
In particular, I am also interested in the oculus rift, mi vr play, and why are HTC helmets so expensive?
And do you need to have a playstation for VR with a playstation? And is there any point in glasses for 10 bucks? For example AIR VR 360.
Update: below I wrote a little myself on this topic in the answer.
I received answers to my own questions on the topic:
1 in glasses for $ 10, there is still a sense - you can get an initial idea. However, comfort is not guaranteed. It seems like you can draw in Paint and Photoshop, but the process will be different.
2 glasses where the phone is inserted uses both the screen and the processor of the phone. Glasses without a phone have their own screen, and the signal is received from the computer.
3 NTS helmets are expensive because there are more different sensors both in the helmet itself and external ones.
4 Yes, PS4 glasses need the Playstation itself - it acts as a signal source.

Answer 1

There are three main ways for 3D
1. Shutter mechanism. Came from Sony. The most expensive and heaviest glasses. The idea is that the glasses are active. The left and right eye closes and opens at a high frequency. Synchronized with the TV (usually by infrared). Accordingly, the TV shows the image for the left eye, then for the right. The frequency is quite high.
Pros - everything is good with color reproduction. The angle of view doesn't really matter.
Cons - expensive glasses, usually reduced brightness due to closure. Works only with Sony TVs (I don't remember other brands implementing this).
2. Red-blue image. Glasses with colored glasses. One puts out the blue, the other puts out the red, the TV accordingly produces two images, one with more red, the other with more blue.
Pluses - the cheapest points. No special technologies are needed, such a picture can be displayed on any screen.
Cons - Poor color rendering. Image quality also suffers.
3. Polarization is the most popular technology. There are even several options (one of them is iMax). Glasses are not very expensive. The left and right lens with different polarization, the screen respectively produces two pictures.
Cons - the screen must be able to produce images with the desired polarization, therefore it is more expensive.
Pros - the glasses themselves are very cheap, everything is fine with flowers.
Otherwise, the cost may depend on the material of the lens - plastic, film or glass.
Well, the frame - if with diamonds, then it can cost 1000 bucks. Otherwise, the quality rarely changes.
The coolest mass implementation of 3d at the moment is iMax, and the points there are generally cheap. They are enough. Therefore, mainly for polarized glasses, the difference in comfort (frame, lens material)

Answer 2

Those with a phone use the phone screen. It displays two pictures, which are then directed into the eyes with lenses. The quality depends on the screen of the phone and a little bit on his brains.
Those that are "factory", such as oculus, htc vive, sony - differ slightly in screen quality, differ in response time (this is important!), differ in weight and convenience, in the number of additional accessories, and in the amount of compatible software.
If you want to buy, first go to some VR club, test different models, and preferably not for 10 minutes, but longer. It may turn out that in some viewing angles they are not the same, but in others it is stupidly hot to sit and after 20 minutes sweat floods the eyes.

Answer 3

https://fishki.net/1837581-ochki-virtualnoj-realno...
do you understand that 500 and 1000 cannot be the same? there are some generations, new ones will come out

Answer 4

There are glasses with their own built-in display, sensors, sensors, gyroscopes. Display resolution + stuffing with sensors affects the cost.
There are glasses into which a smartphone is inserted. This is the cheapest option, because. the display and sensors are taken from the smartphone.
Search Google Play for "VR" and install 5-10 apps. Then you will understand what it is.

Answer 5

I tried the "cardboard" for $ 3 where the phone is inserted. The resolution on the phone was about <700px. Indeed, there is room to grow. You just take and insert a more expensive smartphone.
Also tried VR from something like HTC. But there, probably, I was not lucky with the games, I already wanted to puke.
I think that there is no point in worrying about points at all, because. they focus on different areas. Those that are for mobile phones obviously cannot display the screen from a computer, and therefore this is only a mobile development. Here you take the "cardboard" and forward.

Answer 6

and do you need to have a playstation for VR with a playstation?

Yes, of course you need:

Answer 7

Lenovo Explorer
Buy (20k)
IMHO: not very expensive and the best option for today.

Answer 8

Ok, let's figure it out, then I'll write it out here "for posterity".
Virtual reality gadgets can be divided into the following categories:
1 budget cardboard helmet for a phone
2 a helmet uses a phone as a signal source and to display a picture
3 a helmet uses a computer, PlayStation, XBox as a signal source and its own screen to display a picture
4 an autonomous signal source and screen. Here is a fairly extensive and complete list of such devices.
5 AR glasses (like google glass , or
Microsoft Hololens, Epson Moverio BT-300, or Ximmerse AR Viewer , not really 3D, more like a big screen in front of your eyes. I
found itan article on how to display an image from a computer on a helmet with a phone, so I think that for personal purposes you can stop at a helmet with a phone for now. And one more link on this topic.
A cheap device is just a plastic case with lenses where you can put your phone. Basically, they try to make it universal so that different phones fit. You should not expect high-quality plastic or interior upholstery from such devices. Therefore, for long-term use, such a device may not be comfortable.
Phone devices can display augmented reality (using the phone's camera) and an image from a computer (using special software). They are made mainly universal, suitable for various phones, although there are also highly specialized ones, for example LG 360 VR for LG G5 phone.
What can such a device be used for?
1 viewing of specially created 3D worlds, real, like google.maps or artificial, like minecraft.
2 watching videos on the "big screen" or in 3D
3 watching images from the computer on the "big screen",
4 playing games in 3D virtual reality
Why are some devices so expensive?
Because, in addition to the actual helmet, they also have special sensors and manipulators. The sensor evaluates your presence and movement, and the manipulator can be controlled in the virtual world. Depending on the professionalism and complexity and the number of these additional devices, the cost also increases.
For example, some devices have 9 sensors, and the NTS has 32 sensors - accelerometers, gyroscopes, laser positioning sensor; tracking the movement of the user's head with an accuracy of 0.1 degrees, two stations that track the position in space at 360 degrees; Display Port
There is another "small" detail - the content source. For NTS, this is Steam, for PS, respectively, the playstation, there is also OSVR and a Google cardboard source. Also works with Windows Mixed Reality technology, for example, a helmetLenovo Explorer .
It is worth paying attention to the controls. So, for example, it will apparently be difficult to play virtual tennis with a helmet for the phone. At least because he will not be able to find out ... in which hand you hold the "racquet". You need a device that knows the position of the manipulator (for example, the same Lenovo Explorer
. And there is also a VR helmet for ... drones. :) But this is a separate kingdom.