On 2/15/2016 7:45 AM, Kenneth wrote:
> I've been kind of confused for awhile about just where and when to use srgb
> colors in my scenes since v3.7 came out. (Assume that I'm using assumed_gamma
> 1.0 and that I'm already using srgb colors for OBJECTS.) The docs mention using
> srgb "everywhere that color literals are used", but it's not clear (to me) what
> other things in the scene require them, in order for all elements to be
> *consistent*, both visually and for POV-Ray to work correctly.
>
> Should I also use it in lights, media, etc. etc.? In other words, for
> *everything* that uses a color? There's a big visual difference when using rgb
> vs. srgb in lights, for example.
>
> AFAIU, v3.7 always uses 'linear' values in its computations now-- for correct
> physical behavior-- regardless of whether rgb or srgb is specified in a scene.
>
> So is my question really just a matter of 'visual or artistic preference' rather
> than computational consistency? Or, are there some things in POV-Ray that should
> *not* use srgb at all?
>
>

This is a confusing question that I don't know the answer to either.


Mike

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