In article <407e28a2$1@news.povray.org>,
 Daniel Patrick Johnson <zap### [at] hotmailcom> wrote:

> But that has a sqrt funtion in it so I'm not sure if the three 
> optimizations that run with every ray test will be worth it for the 
> number of spheres.

With languages that ultimately get compiled to native code, or some 
which get interpreted on a VM, the square root may be significant. In 
the case of POV script, a simplification in the parsing of the code is 
more likely to help...the cost of the square root is likely lost in the 
noise.

-- 
Christopher James Huff <cja### [at] earthlinknet>
http://home.earthlink.net/~cjameshuff/
POV-Ray TAG: <chr### [at] tagpovrayorg>
http://tag.povray.org/

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