In article <3a4ffd23@news.povray.org>, "Data" <not@all> wrote:

> It does have some effect on more complex items, such as hollow 
> objects with glass objects inside, doesn't it?

If there are no surfaces or media for the photons to show up on, they 
will only slow things down. They behave like any other illumination. 
Glass usually won't show them, and most metals will only have a slight 
visible effect. If you entire scene is a complex object composed of 
highly reflective metal and completely transparent glass, you will just 
drive up your render time.
However, if you put that object in a box or on a plane with a mostly 
non-reflective, opaque texture, or use media...

-- 
Christopher James Huff
Personal: chr### [at] maccom, http://homepage.mac.com/chrishuff/
TAG: chr### [at] tagpovrayorg, http://tag.povray.org/

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