Hi !

I would like to make some functions. But I found POV-Ray's functions very
limited : it seems it is not possible to use directives inside.
So I decided to use macro instead, since I want to use them once at parse time
only.

From what I had understood, the #macro works pretty much as if it replaced the
call with the content of the macro.

However, I'm trying to make macro that return a float value, so I tried
something like :

#macro MyMacro(arg)

  #if (arg > 1)
    5
  #else
    10
  #end

#end

But it doesn't work...
I saw some exemples like that :


#macro MyMacro(arg)

  #if (arg > 1)
    #declare X=5
  #else
    #declare X=10
  #end

#end

But it doesn't seem right, I don't like toying with global var from inside
functions like this, I feel like I could overwrite some previous val...

Is there a clean way to do this kind of things ?
Thanks :)

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