AR, VR, XR

• VR - Virtual Reality

  AR - Augmented Reality

  XR - Extended Reality
• The virtuality continuum — continuum being the critical word — contains the full spectrum of possibilities between the entirely physical world or real environment and the fully digital world or virtual environment.
• The researchers Paul Milgram and Fumio Kishino first introduced the virtualitycontinuum or reality-virtuality continuum concept in 1994.
• The virtuality continuum is a theoretical framework that can help you visualize and understand the differences between the various technologies that exist today and those that are yet to be invented.
• Extended reality (XR) is an umbrella term that encompasses any sort of technology that alters reality by adding digital elements to the physical or real-world environment by any extent, blurring the line between the physical and the digital world.
• Augmented reality (AR) is a technology that allows the superposition of digital elements into the real-world environment.
• Currently, there are 6 types of Augmented Reality, which are:

  • Marker-based
  • Marker-less
  • Superimposition
  • Location-based
  • Outlining
  • Projection-based
• Marker-based AR


  This type of AR works on the concept of tracking and recognition.
• Marker-less AR

  This type of AR doesn’t requires any sort of marker. This AR can simply detect your plane and perform the augmentation of your digital objects.

  
  

  This is also known as position-based augmented reality
• Superimposition AR


  This type of Augmented Reality uses object recognition.
• Location-based AR


  Location-based AR ties digital content and the experience it creates to a specific place.
• Outlining AR


  Outlining AR recognizes boundaries and lines to help in situations when the human eye can’t.
• Projection-based AR

  Projection-based AR is a little different than the other types of augmented reality. Namely, you don’t need a mobile device to display the content.

  Instead, light projects the digital graphics onto an object or surface to create an interactive experience for the user, known as holograms.
• Mixed reality (MR) is a technology that allows not only the superposition of digital elements into the real-world environment but also their interaction.
• Virtual reality (VR) is a technology that allows the creation of a fully-immersive digital environment. In VR experiences, the physical or real-world environment is entirely blocked out