Cousin Ricky <ric### [at] yahoocom> wrote:
> Does anyone know whether it is possible for a scene file to detect
> whether or not it is being rendered by UberPOV, without bombing out if
> it is rendered by official POV-Ray?
>
> Why would I need to do this?  Because I'm writing a macro that needs to
> know whether or not true inverse square light attenuation is available.
> For official POV-Ray, this is version >= 3.8, but for UberPOV, it is
> version >= 3.71.
>
> My first (and so far only) idea was to start with a test for the
> existence of the variable 'unofficial', but it turns out POV-Ray 3.8
> does the same test--but treats it as if it were a keyword.  This screws
> up the test for any SDL code running under 3.8.

Yes.
I believe you're searching for the combination of this :

#ifdef(unofficial)

with a more narrowed patch version number that belongs only to uber pov such as:

#if(unofficial = \"patch\") #if(patch(\"upov-reflection-roughness\") > 0)

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