Tom Melly <tom### [at] tomandlucouk> wrote:

> "Scott Hill" <sco### [at] ncgraphicsnet> wrote in message
> news:3ad5c206@news.povray.org...
>>
>>     Trial and error. HTH ! ;-)

> ... a phrase that I always find faintly worrying. Is there really no better
> way? Anyone, someone?


Well, how'd you come up with the rmf parameters in the first place?  I've
found no way to do that either, short f trial and error, so.... *shrug*

Geoff

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