How Virtual Reality works in games?
What do you mean by “works in games”?
VR games were designed to create a stereoscopic rendering that gives you a perception of depth when you play them with a VR headset. Some of them are designed to take advantage of the various accessories and motion controllers, so players can interact with them within the game.
VR games were designed to be played with a VR headset. The headset, external accessories or the phone’s orientation sensor (Depends on the headset and configuration) provide the game with data that tells the game about the head, body and hands positioning, depends on the type of VR platform used. For example, for Gear VR, the phone’s orientation sensor provides the game with data where the user is looking at in the 3D scene, and that data is used by the developer to change the orientation of the player’s avatar, for example. HTC Vive is capable of both head (head tracking) and body (body tracking) data, and if you use the Vive controllers, it also provides the game with the location and orientations of your hands, allowing developers to create unique interaction of the player within the virtual environment.
Regarding the stereoscopic view that MasterRogue mentioned. In the headset, there are two screens (in mobile phones the screen is divided to two parts). It allows the headset to create a stereoscopic 3D image by utilizing the two 2D images, and giving the viewer a sense of depth. The screen also covers a wide field of view and the image that is projected on the screen changes based on the head orientation data, giving the feel that the virtual scene surrounds you from all direction, but in fact, it is just refreshes when you move your head (aka head tracking)
Well, games are created for Virtual Reality but not Virtual Reality is created for games
VR works in games simply as it works anywhere. First of all you need a headset - there are plenty of manufacturers of VR headsets like Oculus, Samsung, Google (Google Cardboard allows you to use your phone’s screen as a VR screen, it is very convenient and it costs less) and etc. Then you need a PC that can handle games that you want to play and that is compatible with VR headset. You can also use a gaming console like XBox One or PS4 and it would be fine. And then simply put your headset on and enjoy the Virtual Reality gaming If you want, you can read more about how the full drive virtual reality works here for example : https://appreal-vr.com/blog/full-dive-virtual-reality-how-it-works/
Full dive is a term that has been used by some game developers to imply that their games provide a more-immersive VR experience. That means that headsets use full-body motion sensors to track your actions and to make games more immersive. That’s great actually.
First time I hear about this term