pierre <pie### [at] efpginpgfr> wrote:
> How can I implement this in povray?

  The documentation is full of useful info for this. More specifically,
have a look at: http://povray.org/documentation/view/3.6.1/241/

  What you want to do can probably be done easiest with #switch/#range

-- 
                                                          - Warp

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