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In article <3f863fc0@news.povray.org>, Anton Sherwood <new### [at] ogre nu>
wrote:
> > (1-r)^3 doesn't even remotely resemble the old-style curve. I wasn't
> > trying to "fit" it, but I did want something that was somewhat similar.
>
> (1-rr)^3, then, and you get f'(0)=0 for free. ;)
You may be right, I will have to do more tests when I have time. I do
like the shape given by the quintic curve.
--
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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