XR (Extended Reality) is an umbrella term for technologies that blend the physical and virtual worlds, encompassing Virtual Reality, Augmented Reality, and Mixed Reality. It uses computer technology and wearables to create immersive, interactive experiences for users in fields like gaming, medicine, retail, and manufacturing
Augmented Virtuality (AV) is a type of Mixed Reality that integrates real-world objects, people, or data into a predominantly virtual, computer-generated environment. It is the reverse of Augmented Reality (AR), bringing physical elements into a digital space to enhance immersion in fields like training and design
Possibly one of the reasons why VR got a bad reputation was how expensive it was, you needed to buy a £2000 PC, Sensors tracking your body, the headset, controllers and smart bracelets, which really put it off, Now a VR headset and controllers is the only thing required for a VR experience
But what can you do with the Meta Quest? You can play games, work out, stream movies on virtual screens, and collaborate with friends in social apps.
A virtual world is a simulated, mathematical space designed to mimic reality or create new environments using software like game engines. It relies on 3D geometry, high-resolution textures, and lighting to simulate depth. Beyond gaming, these spaces are often persistent—meaning they continue to evolve even when you log off—and are used to build precise "digital twins" for training, architectural planning, and complex simulations.
Immersion, often called "presence," is the psychological and physical illusion that you are truly inside the virtual space. It occurs when high-performance hardware tracks your movements with zero lag, tricking your brain’s balance centres. True immersion also requires systemic consistency—virtual gravity and physics must behave predictably—alongside compelling narratives or tasks, causing you to temporarily forget the physical world and accept the digital one.
For immersion to work, hardware must convincingly stimulate your physical senses. Visual fidelity relies on stereoscopic, high-refresh-rate displays and eye-tracking to mimic human vision and prevent motion sickness. Spatial audio simulates 3D sound propagation, letting you pinpoint exactly where noises originate. Finally, haptic feedback recreates the sense of touch, evolving from basic controller vibrations to advanced gloves and vests that simulate resistance, texture, and impact.
Interactivity transforms a static 3D diorama into a living world by bridging user intent with digital response. It relies on 6 Degrees of Freedom (6DoF) tracking, allowing you to physically walk and move within the space. Driven by real-time physics engines, interactivity ensures that when you grab, push, or throw a digital object using advanced hand-tracking or controllers, it reacts exactly as it would in reality.
All of these build Presence, which means that you know you have a headset on, but it feels very real