"jr" <cre### [at] gmailcom> wrote:

> can this be used to make a "twister" (ie tornado)?  v nice.

Sir, here at news.povray.org, we are always happy to receive your requests and
provide exactly these types of much anticipated solutions to highly desired
raytracing pattern problems.

I played around a bit in LibreOffice (for way too long), trying to add a bit of
pizzazz to my otherwise uninspiring YFalloff equation.

Using a _variable_ exponent, along with adding in a small constant in order to
keep the funnel above a certain minimum size was just the ticket.

I literally JUST got done coding this one up.   :)

Might be another one on the way to better illustrate the twister.

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