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Interactive Rendering Techniques for Highlighting (3D GeoInfo 2010)

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Interactive Rendering Techniques for Highlighting (3D GeoInfo 2010)

  1. 1. Interactive Rendering Techniques for Highlighting in 3D Geovirtual Environments Matthias Trapp, Christian Beesk, Sebastian Pasewaldt, Jürgen Döllner Hasso-Plattner-Institut, University of Potsdam, Germany 5th 3D GeoInfo Conference :: 3.-4. November 2010 :: Berlin, Germany
  2. 2. Motivation  Highlighting: A. Navigation and orientation B. Express semantic relations C. Express importance of objects  Challenges:  Complex 3D data  Interactive and scalable  Object vs. area highlighting 2
  3. 3. Related Work Highlighting Techniques to Support Geovisualization, Robinson TR 2006 Semantic Depth-of-Field, Kosara (various) Directing Gaze in 3D Models with Stylized Focus, Cole et al. EGSR 20063
  4. 4. Highlighting techniques 4
  5. 5. Image-based Rendering Technique 5
  6. 6. Manual Masking 6  3D proxy objects to indicate areas to highlight  2D screen aligned lenses
  7. 7. Examples: Simple color overlay 7
  8. 8. Examples: Vignetting 8
  9. 9. Examples: Outlines 9
  10. 10. Examples: Semantic Depth-of-Field 10
  11. 11. Examples: Combinations 11
  12. 12. Problems & Limitations 12 FAIL!
  13. 13. Problems & Limitations  Occlusion (A, C)  Insufficient distance cues (E)  Varying camera orientations and projections  Perspective foreshortening  Color overlay falsifies facade information  “smart” highlighting techniques? 13
  14. 14. Wrap-Up 14  Real-time rendering techniques  Various applications  User studies required  Potential for future work
  15. 15. Thank you… Contact: Matthias Trapp matthias.trapp@hpi.uni-potsdam.de Sebastian Pasewaldt sebastian.pasewaldt@hpi.uni-potsdam.de Computer Graphics Systems Group www.hpi.uni-potsdam.de/3d Researchgroup 3D-Geoinformation www.3dgi.de 15

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