Issue No. 03 - May-June (2013 vol. 33)
DOI Bookmark: http://doi.ieeecomputersociety.org/10.1109/MCG.2013.19
N. Holzschuch , INRIA Grenoble, Grenoble, France
J-D Gascuel , LJK, France
Some materials, such as coffee, milk, or marble, have a soft translucent aspect because of subsurface scattering. Light enters them and gets scattered several times before leaving in a different place. A full representation of subsurface-scattering effects in illumination simulation is computationally expensive. The main difficulty comes from multiple scattering events. The high number of events increases the results' uncertainty, requiring more computation time. However, a strong correlation exists between the surface effects of multiple scattering and the effects after just two scattering events. This knowledge can help accelerate multiple-scattering effects. In particular, researchers have exploited this knowledge to provide a model and implementation for fast computation of double-scattering events using a precomputed density function stored compactly.
Materials, Scattering, Photonics, Computational modeling, Lighting, Approximation methods, Rendering (computer graphics), Three dimensional displays, Shadow mapping,computer graphics, 3D graphics, realism, color, shading, shadowing, texture, scattering, translucent materials
N. Holzschuch, J-D Gascuel, "Double- and Multiple-Scattering Effects in Translucent Materials", IEEE Computer Graphics and Applications, vol. 33, no. , pp. 66-76, May-June 2013, doi:10.1109/MCG.2013.19