>> suggested code improvement
>> -----------------------------
>> Deposit photons on no_shadow objects. The old
>> behavior can be preserved with collect off.
> It changed with the beta 3.7 22.
>
> An object with no_shadow DOES collect photons and stops photons from 
> reaching surfaces behind it.
>
> An object with both no_shadow and pass_through does collect and stop 
> reflected photons, but primary photons will reach surfaces behind the 
> object.

Oh, cool, I didn't realize that.  When 3.7 gets out of beta the docs
will be right then. =)

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