Information-Theory-Based Oracles for Hierarchical Radiosity

  • Jaume Rigau
  • Miquel Feixas
  • Mateu Sbert
Conference paper
Part of the Lecture Notes in Computer Science book series (LNCS, volume 2669)

Abstract

In the radiosity method scene meshing has to accurately represent illumination variations avoiding unnecessary refinements that would increase the computational cost. In this paper we present three refinement criteria for hierarchical radiosity which are based on the information content of a ray between two patches or elements and the loss of information transfer between them due to the discretisation. The results obtained with our information-theory-based oracles improve on the classic ones based on transported power, kernel smoothness, and smoothness of received radiosity.

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References

  1. 1.
    Hanrahan, P., Salzman, D., Aupperle, L.: A rapid hierarchical radiosity algorithm. Computer Graphics (Proceedings of SIGGRAPH’91) 25 (1991) 197–206 Held in Las Vegas (NV), USA.CrossRefGoogle Scholar
  2. 2.
    Bekaert, P., Neumann, L., Neumann, A., Sbert, M., Willems, Y. D.: Hierarchical Monte Carlo radiosity. In Drettakis, G., Max, N., eds.: Rendering Techniques’98 (Proceedings of the 9th Eurographics Workshop on Rendering), New York (NY), USA, Springer-Verlag Vienna-New York (1998) 259–268 Held in Vienna, Austria.Google Scholar
  3. 3.
    Goral, C. M., Torrance, K. E., Greenberg, D. P., Battaile, B.: Modelling the interaction of light between diffuse surfaces. Computer Graphics (Proceedings of SIGGRAPH’84) 18 (1984) 213–222 Held in Minneapolis (MN), USA.CrossRefGoogle Scholar
  4. 4.
    Sillion, F. X., Puech, C.: Radiosity and Global Illumination. Morgan Kaufmann Publishers, San Francisco (CA), USA (1994)Google Scholar
  5. 5.
    Smits, B. E., Arvo, J., Salesin, D.: An importance-driven radiosity algorithm. Computer Graphics (Proceedings of SIGGRAPH’92) 26 (1992) 273–282 Held in Chicago (IL), USA.CrossRefGoogle Scholar
  6. 6.
    Gortler, S. J., Schroder, P., Cohen, M. F., Hanrahan, P.: Wavelet radiosity. Computer Graphics (Proceedings of SIGGRAPH’93) 27 (1993) 221–230 Held in Anaheim (CA), USA.Google Scholar
  7. 7.
    Lischinski, D., Tampieri, F., Greenberg, D. P.: Combining hierarchical radiosity and discontinuity meshing. Computer Graphics (Proceedings of SIGGRAPH’93) 27 (1993) 199–208 Held in Anaheim (CA), USA.Google Scholar
  8. 8.
    Pattanaik, S. N., Bouatouch, K.: Linear radiosity with error estimation. In Hanrahan, P., Purgathofer, W., eds.: Rendering Techniques’95 (Proceedings of the 6th Eurographics Workshop on Rendering), New York (NY), USA, Springer-Verlag Vienna-New York (1995) Held in Dublin, Eire.Google Scholar
  9. 9.
    Lischinski, D., Smits, B., Greenberg, D. P.: Bounds and error estimates for radiosity. Computer Graphics (Proceedings of SIGGRAPH’94) 28 (1994) 67–74 Held in Orlando (FL), USA.Google Scholar
  10. 10.
    Bekaert, P., Willems, Y. D.: Error control for radiosity. In Pueyo, X., Schröder, P., eds.: Rendering Techniques’96 (Proceedings of the 7th Eurographics Workshop on Rendering), New York (NY), USA, Springer-Verlag Vienna-New York (1996) 153–164 Held in Vienna, Austria.Google Scholar
  11. 11.
    Stamminger, M., Slusallek, P., Seidel, H. P.: Bounded radiosity-illumination on general surfaces and clusters. Computer Graphics Forum (Proceedings of Eurographics’ 97) 16 (1997) 300–317 Held in Budapest, Hungary.Google Scholar
  12. 12.
    Holzschuch, N., Sillion, F.: An exhaustive error-bounding algorithm for hierarchical radiosity. Computer Graphics Forum 17 (1998) 197–218CrossRefGoogle Scholar
  13. 13.
    Bekaert, P.: Hierarchical and Stochastic Algorithms for Radiosity. PhD thesis, Department of Computer Science, Leuven, Belgium (1999)MATHGoogle Scholar
  14. 14.
    Feixas, M., del Acebo, E., Bekaert, P., Sbert, M.: An information theory framework for the analysis of scene complexity. Computer Graphics Forum (Proceedings of Eurographics’99) 18 (1999) 95–106CrossRefGoogle Scholar
  15. 15.
    Feixas, M., del Acebo, E., Bekaert, P., Sbert, M.: Information theory tools for scene discretization. In Lischinski, D., Larson, G. W., eds.: Rendering Techniques’99 (Proceedings of the 10th Eurographics Workshop on Rendering), New York (NY), USA, Springer-Verlag Vienna-New York (1999) 95–106 Held in Granada, Spain.Google Scholar
  16. 16.
    Feixas, M.: An Information-Theory Framework for the Study of the Complexity of Visibility and Radiosity in a Scene. PhD thesis, Departament de Llenguatges i Sistemes Informàtics, Barcelona, Spain (2002)Google Scholar
  17. 17.
    Cover, T. M., Thomas, J. A.: Elements of Information Theory. Wiley Series in Telecommunications (1991)Google Scholar
  18. 18.
    Feixas, M., Rigau, J., Bekaert, P., Sbert, M.: Information-theoretic oracle based on kernel smoothness for hierarchical radiosity. In: Short Presentations (Eurographics’02). (2002) 325–333 Held in Saarbrucken, Germany.Google Scholar
  19. 19.
    Computer Graphics Research Group: RenderPark: A Photorealistic Rendering Tool. Katholieke Universiteit Leuven, Leuven, Belgium. (2000)Google Scholar

Copyright information

© Springer-Verlag Berlin Heidelberg 2003

Authors and Affiliations

  • Jaume Rigau
    • 1
  • Miquel Feixas
    • 1
  • Mateu Sbert
    • 1
  1. 1.Institut d’Informàtica i AplicacionsUniversitat de GironaSpain

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