NDLI: Fast Multiple Scattering in Participating Media with Beamlet Decomposition

Content Provider	IEEE Xplore Digital Library
Author	Yuanlong Wang Ping Guo
Copyright Year	2012
Abstract	We propose a fast algorithm which is based on the beam let decomposition for real-time rendering of scenes in participating media with multiple scattering. Firstly, the light source radiation is considered as composed by all particles in the media and each particle radiation is decomposed along different forward directions using the plane decomposition method. Then the multiple scattering radiation of one particle is calculated by the decomposition radiations from its adjacent particles and the light source. Finally, according to the multiple scattering radiation value of each particle, the radiation of the ray which is from viewpoint is calculated using ray marching method, which can be implemented on the graphics processing unit (GPU), and rendering process is highly parallel. The experimental results show that the algorithm can achieve real-time rendering efficiency and enhance the practicality of multiple scattering.
Starting Page	396
Ending Page	400
File Size	320052
Page Count	5
File Format	PDF
ISBN	9781467347259
DOI	10.1109/CIS.2012.95
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2012-11-17
Publisher Place	China
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Algorithm design and analysis Beamlet decomposition Parallel computing Absorption Participating media Scattering Graphics processing units Media Ray tracing Rendering (computer graphics) Multiple scattering Light sources
Content Type	Text
Resource Type	Article

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