Keywords
rendering
photon mapping
participating media
How to Cite
Abstract
The research on Streamed Photon Mapping method has shown its effciency and potential. Significant caustic effects without an additional caustic map are its undeniable advantage. The method assumed that light spreads in a vacuum; however, such approach excluded the visualization of such phenomena as fog, smoke, or clouds. This paper presents a modification of the basic method of rendering with the help of photon streams, taking into account the simulation of light in dense mediums. The specifics of stream structure and the applied solutions allow to eliminate multiple assessment of the same photons as it occurred in the case of standard Volumetric Photon Mapping.
References
Blasi, P., Le Saëc, B., and Schlick, C., An Importance Driven Monte-Carlo Solution to the Global Illumination Problem, Springer Berlin Heidelberg, 1995.
Napieralski, P. and Guzek, K., Interactive Visualization of Magnetic Fields, Journal of Applied Computer Science, Vol. 21, No. 1, 2013, pp. 107–117.
Chandrasekhar, S., Radiative Tranfer, Dover, New York, 1960.
Siegel, R., Thermal Radiation Heat Transfer, Fourth Edition, CRC Press, 2001.
Pattanaik, S. N. and Mudur, S. P., Computation of global illumination in a participating medium by monte carlo simulation, The Journal of Visualization and Computer Animation, Vol. 4, No. 3, 1993, pp. 133–152.
Pérez, F., Martín, I., and Pueyo, X., Advances in Modelling, Animation and Rendering, Springer London, 2002.
Lafortune, E. P. and Willems, Y. D., Rendering Participating Media with Bidirectional Path Tracing, Springer Vienna, Vienna, 1996, pp. 91–100.
Jensen, H. W. and Christensen, P. H., Effcient Simulation of Light Transport in Scenes with Participating Media Using Photon Maps, In: Proceedings of the 25th Annual Conference on Computer Graphics and Interactive Techniques, SIGGRAPH ’98, ACM, New York, NY, USA, 1998, pp. 311–320.
Pauly, M., Kollig, T., and Keller, A., Metropolis Light Transport for Participating Media, Springer Vienna, Vienna, 2000, pp. 11–22.
Guzek, K. and Napieralski, P., Streamed Photon Mapping, Metody Informatyki Stosowanej, Kwartalnik Komisji Informatyki PAN Oddział w Gdańsku, , No. 4, 2011, pp. 67–74.
Guzek, K., Metoda Strumieniowego Mapowania Fotonowego, Ph.D. thesis, Institute of Information Technology, Lodz University of Technology, ul. Wólczańska 215, 90-924 Lodz, Poland, 2014, (in Polish).
Jensen, H. W., Global Illumination Using Photon Maps, In: Proceedings of the Eurographics Workshop on Rendering Techniques ’96, Springer-Verlag, London, UK, UK, 1996, pp. 21–30.
Jarosz, W., Zwicker, M., and Jensen, H. W., The Beam Radiance Estimate for Volumetric Photon Mapping, Computer Graphics Forum (Proceedings of Eurographics), Vol. 27, No. 2, April 2008, pp. 557–566.