> What is the effect of scaling on subsurface values? Are they scaled accordingly
> in order to keep the material equivalent (IMO, a half sized wax object is still
> made of the same wax with same SSLT characteristics)? If so, what is the
> corresponding law? Related to volume?
>
>
> Bruno
>
>

Those values must NOT be affected by scaling, as it would change the 
characteristics of the material.
They are thus treated just like media and fading interiors. Scaling 
don't affect the density of your media, the fade_distance, the ior, nor 
the SSLT parameters.

In the case of SSLT, you tweak the effect using mm_per_unit in the 
global_settings, defaulting to 10 => assumes that 1 unit = 1 cm.
If you model using 1 inch per unit, set it to 25.4.
If you model using 1 unit = 1m, set it to 1000.
If you model using units corresponding to a larger length, SSLT becomes 
insignificant and should probably not be used.



Alain

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