> What is the basic method you use?
The mcpov modification is very simple (80 extra lines).
It is the same technics then in a previous experiment :
http://news.povray.org/web.4838403f151ae76dd309f1e00%40news.povray.org
I replaced the refract function with a new one that sample the hemisphere after
a shift of 0.001 below the surface.
I used an interior attenuation (interior { ior 1.0001 fade_distance 0.5
fade_power 1 }) in order to control the depth of the sss effect.

Regards,
Fidos

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