In article <3b96b9a8$1@news.povray.org> , "Nathan Kopp" <nat### [at] koppcom> 
wrote:

> For the record, there was no bug with POV-Ray in this case.  (See my post to
> Sigmund's other post.)  In this case, the user-defined function was trying
> to take the square root of a negative number, which is not defined as a real
> number.  I don't know why it worked with MegaPOV, because it shouldn't have.

It worked with MegaPOV functions because they had funny (and sometime
unpredictable) side effects like taking the absolute value automatically in
some cases...

    Thorsten

____________________________________________________
Thorsten Froehlich, Duisburg, Germany
e-mail: tho### [at] trfde

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