Multi projector displays using a 3D compositing window manager

  • Authors:
  • Manuela Waldner;Christian Pirchheim;Dieter Schmalstieg

  • Affiliations:
  • Graz University of Technology;Graz University of Technology;Graz University of Technology

  • Venue:
  • IPT/EDT '08 Proceedings of the 2008 workshop on Immersive projection technologies/Emerging display technologiges
  • Year:
  • 2008

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Abstract

The usage of projected displays in everyday office environments is still uncommon due to deficiencies in nowadays projection systems. An automatic calibration routine for multi-projector setups should adopt to the existing room geometry while not restricting the users' workflow to specific applications or by modifying their desktop environment. We present a geometry-adaptive calibration and rendering application for multi-planar surfaces which applies warping and alpha blending to an unmodified X desktop, implemented as plugin for an existing 3D hardware-accelerated compositing window manager. The transformations are performed transparently to X applications and require negligible computational resources.