In article <3a205522@news.povray.org>, "=Bob=" <Bob### [at] threestrandscom> 
wrote:

> Spelled the same, but quite different.

Not a lot different, just that one takes a point and can be used in 
ordinary scene code, while the other takes 3 scalars and can only be 
used in functions. Same keyword, same calculations, just called from a 
different place.

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

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