In article <3bdab763@news.povray.org> , "Rune" <run### [at] mobilixnetdk>
wrote:

> Thorsten, it's not that I don't understand how function parameters work,
> what I don't understand is why they're designed to work that way.

Because POV-Ray directives are designed to work this way.  They sit "on top"
of your scene.  Contrary to macros functions are _part_of_the_scene_ and as
such are and have to be handled different from macros.

Would you expect the scene below to work as well? - It would be a
consequence of what you are asking for (as I explained above) and obviously
does not make sense!

    #declare foo = function(a,b,c)
    {
        #while(a > 0)
            (b - a) *
            #declare a = a - 1;
        #end
        c
    }


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

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