Virtual Reality – What is it and How Does it Work?


Virtual reality is an emerging technology involving a headset or wearable device to “transport” the user to a different world. While gaming is one of the most popular applications, other fields are seeing its value, including medicine, travel, education, and entertainment.


Immersion in virtual reality is a phenomenon wherein an individual feels physically present in a virtual world. This is created by surrounding the user with images, sounds, and other stimuli. This involves watching or hearing virtual scenes. In some cases, this may also involve touching virtual objects.

Immersion takes time, as the user needs time to orient themselves within the environment and understand where they are and what they’re experiencing. In addition, users want to feel that they are a part of the story, which requires excellent detail. Luckily, this is an area that a virtual reality developer can use to achieve a higher level of immersion.

Various immersive systems exist today, and they can immerse a person in a virtual space in which they’re familiar and comfortable. While some plans are intended to be operated remotely, others are used for training. Futuroscope Poitiers is one such system. In each case, the amount of immersion depends on the concordance between different sensory inputs and the user’s ability to feel the elements and respond appropriately.


Nonimmersion in virtual reality is a type of VR technology in which the user is not entirely immersed in a world of virtual reality content. This technology is mainly used for fun and learning since users can control the characters, settings, and environments. The virtual tour is currently the most common form of nonimmersion in virtual reality. Most of the time, these tours are online or on a device so users can interact with them. Most of the time, they are used in hotels, schools, and bars.

Nonimmersion VR has several benefits for people with disabilities. For example, it can help patients recover their balance.

The nonimmersion type of VR is the least immersive type of VR. This type of VR uses high-resolution monitors and computer systems as input devices. It is the most common type of VR and is often the most widely used. However, if you’d like to experience total immersion in virtual reality, you’ll need a head-mounted display and a high-resolution gaming system.


In semi-immersive VR, the player wears wearable technology and is immersed in the virtual environment. This allows the player to move and interact as if they are in the background. In addition, the experience is highly realistic because a player is immersed in an environment with a defined layout and perspective.

One example of a semi-immersive virtual reality is a flight simulator. These simulations usually consist of a large concave screen, projection system, monitor, and high-end computer graphics. The viewer is partially immersed in the virtual environment and is not required to wear special virtual reality gear. In addition, the viewer is aware of the world outside the virtual environment.

This VR environment has several limitations. First, it can cause cybersickness. Participants suffering from this condition report severe nausea. Second, it can affect their ability to perform tasks. Third, it can also cause oculomotor problems. For example, participants experiencing cybersickness may be unable to follow directions in the virtual environment.

Fully immersive

Fully immersive virtual reality (VR) systems capture full body motion and allow users to interact with computer-controlled avatars and other users in the virtual environment. These systems provide a novel-mediated learning environment, enabling various educational applications. Unlike traditional virtual reality capture methods, which map tens of degrees of freedom onto a virtual model, fully immersive virtual reality systems capture full body motion. This method traded off visual fidelity for motion fidelity and increased degrees of freedom.

A large-scale study of participants’ reactions to VR revealed that exposure significantly increased their oculomotor and nausea scores, although the differences were minor. Nevertheless, participants showed no reduction in fine dexterity after the VR experience, which indicates a positive effect on their performance. Nevertheless, the researchers conclude that VR is not yet suitable for everyone.

Semi-immersive virtual reality combines elements of fully immersive and non-immersive VR. It is a hybrid, allowing users to experience a 3D environment using a computer screen, VR box, or VR headset. The difference between these two types is that there is no physical movement in a semi-immersive virtual reality. Instead, the user uses a mouse to navigate through the virtual space.