On 04/04/2011 07:11 AM, Jim Holsenback wrote:
> On 04/03/2011 06:55 PM, Alain wrote:

>>> Am I wrong to expect a light_source that's been included in a
>>> light_group to interact with scattering media? Also I've noticed in the
>>> scene stats that it's reporting one less light source when it's included
>>> as part of a light_group ... wuz up wid dat?
>>
>> Light from a light_group will only illuminate scattering media that is
>> part of it's group, BUT, the absorbtion from such media will affect the
>> light even if it's not in the light_group.
>
> ah ... thanks the one thing I didn't try. I didn't see anything in the
> docs, so I'll double check and make an addition if I come up empty handed.
>

Didn't see anything, so this section:
http://wiki.povray.org/content/Documentation:Reference_Section_6.1#Scattering

now has a referral (at the bottom) back to the Light Groups section were 
I reworked that section to include the caveat.

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