"IGM" <iar### [at] gmailcom> wrote:

> Is it possible also with simple objects like boxes? If not, why?

Of course.
I was even thinking just use a simple thin box with a low transmit value.


> Are photons needed for this effect?

Nope.


> May "fresnel" keyword help?

As Alain astutely pointed out in a recent post - you need an interior{} block
with an ior value.  I think that would look cool as a translucent marble with
subsurface scattering  (nod)  :)

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