What is Virtual Reality (VR)?
Virtual Reality (VR) is a 3D based simulation of any type of environment. It can be viewed through VR goggles and interacted with by using a set of controllers and other electronic items.
How does VR work?
By combining 3D graphics, animation, and programming, we can reproduce any virtual reality scenario. Therefore, we can allow the application users to fully immerse themselves into the VR world just as if it was real. Thanks to a set of sensors, the user can freely move around the designated space. Every movement of his body will be transferred to virtual reality.
A set of controllers or sensors, recognizing the hands, allows the user to entirely interact with the virtual world. VR goggles can be either tethered or wireless. Depending on the purpose of the application, we can select the appropriate hardware from various options.
3DoF vs 6DoF
3DoF VR Goggles are the most basic VR goggles that offer us movement in three degrees of freedom (3DoF). It means that they only track our head's rotation. This type of goggles is usually equipped with a Bluetooth controller, which can be used for simple interactions (point and click). This type of goggles is perfect for seated experiences. The user has limited interaction with the 3D world or is merely a spectator.
More advanced VR goggles offer us six degrees of freedom (6DoF), which means that the user can also move around the 3D simulation in all dimensions naturally. These goggles are usually equipped with controllers, which can serve as our virtual hands (also tracked in 6DoF). In the case of 6DoF goggles, we can apply numerous additional sensors and electronic components, including custom-made ones. It can enrich the overall experience by adding options like hand tracking, eye tracking, generating heat, smells, recreating existing objects in the 3D space, and many more.