Virtual reality technology is still in its very early stages, so there are many hardware, technical, and software issues to overcome. At the 2017 GDC Games Developer Conference held in San Francisco, Tobii, an eye-tracking technology company from Sweden, delivered a speech to illustrate the prospects of embedding eye-tracking technology in virtual reality headsets. We have already seen the eye tracking technology of Tobii before, although there is no perfect solution to Tobii's technology before, and there is not enough game support, but this does not obliterate the prospect of this technology.
At this GDC, Tobii brought a very convincing case to tell us why the future of virtual reality helmets will have to support eye-tracking technology and demonstrate to us early in the virtual reality game. Application examples.
Let's take a look at the five reasons why I say so.
1, performance
This is perhaps one of the most interesting reasons, because in the virtual reality technology, our visual range is in the form of a funnel, so our brain will automatically grab a lot of details in the area in front of the line of sight, and partially ignore The content around, so we often appear in our lives do not pay attention to the surrounding things.
Using this principle, in the virtual reality game, by tracing the user's eyes, only the area viewed by the player can be presented in high-definition detail, which means that the graphics processor will not be given to the player while improving the effect and experience of the game screen. Bring a greater burden. The rest of the surrounding scene can be rendered with a lower quality, and only the colors and contrasts remain. This will also make us more sensitive to the target details in front of us.
This also solves a bigger problem of virtual reality technology: To render game graphics with high resolution, the requirements for graphics cards are very high. Not only are they expensive and they are also very bulky, thus wasting unnecessary resources. What we do not notice is obviously wasteful, wastes computing power and wastes electricity.
This is still the best case. If this kind of technology is programmed, it is undoubtedly very difficult. Of course, currently graphics companies including NVIDIA are all developing this technology, so it is not impossible.
2, player interaction
Most players will enjoy the interaction with other players in virtual reality games. However, the interaction of virtual reality technology is very hard. Therefore, if you can join the eye-tracking interaction, you will know whether the other person's eyes are falling on your own. He knows what the other person likes and does not like.
3, calibration
A unique problem with the virtual reality platform is that the display is relatively narrow. Therefore, to obtain the most perfect experience, you must tie your headgear tightly and align your eyes with the center to achieve the best image quality. Through the eye-tracking sensor, Tobii believes that it can help the player to perform the calibration of the sighting directly. After wearing the helmet, he can quickly find the most accurate position under the prompt instead of playing after a period of time.
4, better understanding of the player
For developers, the fun of this technology is to allow players to directly test their game levels and display them in a very intuitive way. This is for the player to discover where the difference between himself and the master is.
5, simplify part of the type of game
When we play through virtual reality, some need to control the physical precision, such as throwing darts or throwing stones, etc., we all hope that the more accurate the better. And when we are playing this type of game, eye tracking can help us directly aim at the target.
When players know where they are looking, they can achieve automatic aiming and improve accuracy, which will make some types of virtual reality games easier to play.
The possibility of realization
Valve has already begun experimenting with this technology, and SIM has also begun demonstration demonstrations. In addition, Valve also runs hardware vendors that incorporate eye tracking support hardware in the OpenVR Developer Kit.
Together with Tobbi’s presence at the GDC demonstrates the benefits of eye tracking in the field of virtual reality, the potential for the next generation of virtual reality headsets to integrate into this technology is very high.
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