Am 12.09.2011 09:08, schrieb Thomas de Groot:
> On 11-9-2011 13:15, Jaime Vives Piqueres wrote:
>> background{rgb <213,127,79>/255}
>
> I think that is where my setup is *wrong* (and I apologize) because I
> use a colored object within a white sphere with finish {emission 1} (no
> light source). I understand now from the explanations by Warp and Ive,
> that the sphere's color influences the object's color. Obvious, but I am
> not always thinking straight ;-)
>
> Remains my question: when to use the term 'srgb' in POV-Ray code?

That question has a very, very simple answer in 3.7:

     -----------------------------------------
     Use "srgb" whenever you get a color value
     from an external application(*).
     -----------------------------------------

(*unless you know what you are doing)

And yes, it's really that straightforward; no caveats regarding 
assumed_gamma or #version in this context.

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