Lars W. wrote in message <3713b2cd.0@news.povray.org>...
>After testing that out i can say too that this thing seems to be useless,
>a tried all types of media, with filter and transmit and other
>things.
>By the Way i found an other thing which seems to be incorrect :
>i understand it that way, when you use mediainteraction off on a
>light_source
>the light should interact in no way with the media, but it interacts with
>the
>absorption value, i mean the light gets dismished, when travelling thru
>the media even if media interaction s off. should that be in that way ?
>


Yes, this is correct behaviour. The only type affected by media_interaction
is scattering media, because AFAIK media_interaction simply toggles
scattering. The other types do not get lit by the light source. But
absorbing (and scattering) media can attenuate, i.e. dim light, in effect
casting a shadow. This should be controlled by the media_attenuation
keyword, but apparently isn't.

Margus

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