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VR

VR is a computer simulation to generate a realistic 3D virtual world. Therefore interactivity, immersion and presence (it looks and behaves like the real deal) is important.

People employ the use of VR for:

  • the real thing is too dangerous
  • the real thing doesn't exist
  • The simulated objective is difficult or expensive to train in real life (e.g. surgery)
  • The simulated object is not accessible (e.g. virtual autopsy table)

The following senses contribute the most to the perception of a human:

  • Sight 70% (Visual Interface)
  • Hearing 20% (Auditory Interface)
  • Smelling 5% (Olfactory Interface)
  • Touching 4% (Haptics Interface)
  • Taste (Gustatory Interface)
  • Balance (Vestibular Interfaces)
  • Body Awareness (Locomotion Interface)
  • Temperature
  • Pain

The Reality-Virtuality Continuum

image-20240611153332760

Glossary

  • Physical Reality Resides in local, physical world (here and now)

  • Cyberspace A location that exists only in the mind of users and allows geographically distant people to interact with each other

  • Synthetic Environment = VR, AR, Telepresence

  • Telepresence Interact with a physically real, remote environment from the first person perspective

  • Teleoperation Remotely operate a device

Input

Fuse Buttons are one option of interactivity image-20240611154351301

Often time Motion Tracking is used. Alternatively, Gesture Recognition is implemented.

The body can be tracked with electromagnetic tracking .

image-20240611154507446

More modern headsets use optical tracking.