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VR Interactions - Jason Jerald

The most important part of VR interaction is the person doing the interacting. Human-centered interaction design focuses on the human side of communication between user and machine: the interface from the user’s perspective. Focusing on users is more important for VR than for any other medium. When VR is done well, interactions can be brilliant and pleasurable, but when done badly, they can result in frustration, fatigue, and sickness. Many causes of bad VR are centered on a lack of understanding of human perception, intuitive interaction, design principles, and real users. Quality interactions enhance user understanding of what has just occurred, what is happening, what can be done, and how to do it. For optimal VR experiences, goals and needs must be efficiently achieved, and the experiences must be engaging and enjoyable.

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VR Interactions - Jason Jerald

  1. 1. 1@TheVRBookJason Jerald, Phd VR Interactions Jason Jerald, PhD
  2. 2. 2@TheVRBookJason Jerald, Phd 60+ VR Projects, 30+ Organizations
  3. 3. 3@TheVRBookJason Jerald, Phd The Psychology of Perception & Action • Objective vs subjective reality • Distal and proximal stimuli • Sensation vs perception • Bottom-up and top-down processing • Afference and efference • Iterative perceptual processing • The subconscious and conscious • Mental models • Visceral, behavioral, reflective, and emotional processes • Neuro-linguistic programming • Space, time, & motion • Perceptual constancies • Adaptation • Attention • Action
  4. 4. 4@TheVRBookJason Jerald, Phd VR Output = Distal stimuli Image Courtesy of The VR Book (adapted from Goldstein [2007]) The Iterative Perceptual Process Human action = VR input/tracking With VR, we hijack the human perception-action system
  5. 5. 5@TheVRBookJason Jerald, Phd The Cycle of Interaction Image Courtesy of The VR Book (adapted from Norman [2013])
  6. 6. 6@TheVRBookJason Jerald, Phd Input Device Classes
  7. 7. 7@TheVRBookJason Jerald, Phd The Most Important Input Device?
  8. 8. 8@TheVRBookJason Jerald, Phd The Most Important Input Device? The Human Hands! – Large proportion of sensory and motor cortex devoted to the hands – Hand tracking technology is simply the mediator that brings the hands into VR
  9. 9. 9@TheVRBookJason Jerald, Phd The First Hand Technique Image courtesy of NextGen Interactions
  10. 10. 10@TheVRBookJason Jerald, Phd Interaction Patterns • Hand Selection • Pointing • Image- Plane • Volume Based Selection • Walking • Steering • 3D Multi- Touch • Automated Viewpoint Control • Direct Hand • Proxy • 3D Tool Manipulation • Widgets & Panels • Non Spatial Indirect Control • Pointing Hand • World-in- Miniature • MultiModal Compound
  11. 11. 11@TheVRBookJason Jerald, Phd The Hand Selection Pattern Hands with Arms Video Courtesy of Digital ArtForms
  12. 12. 12@TheVRBookJason Jerald, Phd The Pointing Pattern Image Courtesy of Digital ArtForms
  13. 13. 13@TheVRBookJason Jerald, Phd The Image-Plane Pattern The Head-Crusher Technique From Pierce et al. [1997]
  14. 14. 14@TheVRBookJason Jerald, Phd Widgets & Panels Pattern • Hand-held panels – Buttons – Sliders – Dials – Color cubes Images Courtesy of Sixense & Digital ArtForms
  15. 15. 15@TheVRBookJason Jerald, Phd World-In-Miniature Pattern Referenced world view within a box Images Courtesy of Digital ArtForms
  16. 16. 16@TheVRBookJason Jerald, Phd 3D Multitouch Pattern • An extension of 2D Multitouch • Manipulate the world as an object – Reduces sickness – Solves gorilla arm • Low interaction fidelity – Appropriate for abstract non-realistic interactions • Content/data independent – Emergency preparedness – Medical Visualization – MakeVR
  17. 17. 17@TheVRBookJason Jerald, Phd 3D Multitouch—Medical Visualization Video Courtesy of ACM SIGGRAPH
  18. 18. 18@TheVRBookJason Jerald, Phd 3D Multitouch—Content Creation MakeVR Collaborative Video Courtesy of Sixense
  19. 19. 19@TheVRBookJason Jerald, Phd 3D Tools Pattern The Jigs Technique Images Courtesy of Digital ArtForms and Sixense
  20. 20. 20@TheVRBookJason Jerald, Phd What is Common to All VR Dev? Iteration!
  21. 21. 21@TheVRBookJason Jerald, Phd Questions

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  • JiayiWang15

    May. 23, 2017

The most important part of VR interaction is the person doing the interacting. Human-centered interaction design focuses on the human side of communication between user and machine: the interface from the user’s perspective. Focusing on users is more important for VR than for any other medium. When VR is done well, interactions can be brilliant and pleasurable, but when done badly, they can result in frustration, fatigue, and sickness. Many causes of bad VR are centered on a lack of understanding of human perception, intuitive interaction, design principles, and real users. Quality interactions enhance user understanding of what has just occurred, what is happening, what can be done, and how to do it. For optimal VR experiences, goals and needs must be efficiently achieved, and the experiences must be engaging and enjoyable.

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