In article <web.410267fe6a733d77aed149a60@news.povray.org> , "Alex Wollangk"
<ale### [at] tdsnet> wrote:

> Although the first time I rendered it, it told me that I should use a
> max_gradient of 1.549.  I set it to 1.55 and rendered again and it told me
> that I needed 1.635.  Hmmm...  Setting it to 1.64 eliminated any warnings.

What you get is only an estimate.  To determine the exact value to first
time would require to always render assuming an infinite maximum gradient.
Also note that the value reported may change if you render with a higher
resolution because more samples may find places in the function needing a
different maximum gradient.

    Thorsten

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

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