3DUI

• selection and manipulation

  • selection and manipulation of virtual objects

  • direct interaction with virtual environment

• travel

  • locomotion within the virtual environment

  • allows exploration and change of perspective

• system control

  • representation of options within a virtual environment

  • techniques for changing options

• distinction in range

  • short

  • long

  • mixed

• representation using metaphors

  • grasping metaphor

  • tool metaphor

  • laser pointer metaphor

• range and destination

  • short distance

  • great distance

  • different VE

• trigger

  • artificial (button press)

  • physical (real walking)

• motion type

  • continuous

  • non-continuous

• representation

  • diegetic (integrated)

  • non-diegetic (external)

differentiation:

• selection, manipulation and travel interactions specify what and in what way something happens

• system control interactions only specify WHAT should happen

• targets changes of options (e.g. change tools, adjust volume)

possible metaphors:

• buttons, switches

• integrated 2D menus, 3D elements (zB levers)

• voice input

• gestures (zB swiping)

main ideas:

• offering additional visual/auditory/haptic stimuli

• when a specific type of feedback is not possible

• to compensate for the absence

• non-diegetic: part of the simulation of a virtual environment, but not part of the story line (zB fixe 2D Elemente)

• diegetic: elements embedded in the story line of the virtual environment (zB 2D Elemente auf planarer 3D-Fläche)