I've read a web page: "A Practical Model for Subsurface Light Transport" by
Wann Jensen, Marshner, Levoy, Hanrahan. The page can be found at the
following place:
http://www.cc.gatech.edu/~sarah/a_practical_model_for_subsurface.html

The article seems talking about single scattering and diffuse scattering and
there is also some example code.

At the end of the article is written "We have modified the open source ray
tracer POV-Ray. The only files that we modified inside it are lighting and
render. The rest can be downloaded from POV-Ray's site.".

Maybe it could be a way to implement sub-surface scattering in Povray...
Maybe the proposed code could be merged to Povray code... Maybe we are far
from BSSRDF...

Do you have any details about this argument? Do you think sub-surface
scattering would be a good improvement in Povray? I think so. Someone dont
agree with me, but he could have his reasons...

Best regards.

Antonio Ferrari

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