Navigation modes for combined table/screen 3D scene rendering

  • Authors:
  • Rami Ajaj;Frédéric Vernier;Christian Jacquemin

  • Affiliations:
  • LIMSI-CNRS and University Paris-Sud, Orsay Cedex, France;LIMSI-CNRS and University Paris-Sud, Orsay Cedex, France;LIMSI-CNRS and University Paris-Sud, Orsay Cedex, France

  • Venue:
  • Proceedings of the ACM International Conference on Interactive Tabletops and Surfaces
  • Year:
  • 2009

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Abstract

This paper compares two navigation techniques for settings that combine a 2D table-top view and a 3D large wall display, both rendering the same 3D virtual scene. The two navigation techniques, called Camera Based (CB) and View Based (VB) strongly rely on the spatial relationships between both displays. In the CB technique, the 3D point of view displayed on the wall is controlled through a draggable icon on the 2D table-top view. The VB technique presents the same icon on the table-top view but statically located at the center and oriented toward the physical wall display while the user pans and rotates the whole scene around the icon. While CB offers a more consistent 2D view, VB reduces the user's mental rotations required to understand the relations between both views. We perform a comparative user study showing user's preference for VB technique while performances for complex tasks are better with the CB technique. Finally we discuss other aspects of such navigation techniques, such as the possibility of having more than one point of view, occlusion, and multiple users.