Op 14/08/2023 om 20:09 schreef Cousin Ricky:
> I just ran across these comments while looking for something else.
> Clipka's initial warning was:
>    https://news.povray.org/58625d1f%241%40news.povray.org
> 
> His correction to the initial warning:
>    https://news.povray.org/5862ea88%241%40news.povray.org
> 
> To summarize the two posts:
> 
>    ... you need to use
> 
>        #declare C = srgb <R,G,B>;
>        colour C * Brightness
> 
>    rather than
> 
>        colour srgb <R,G,B>*Brightness
> 
>    because the latter would be interpreted as
> 
>        colour srgb (<R,G,B>*Brightness)
> 
> My response was:
>    The moral seems to be get all of your srgb declarations out of the way
>    as early as possible--including before you do any math on such colors.
> 
> This is in agreement with what Ive and I said in Kenneth's thread two
> years ago, less the note about byte triplets.  I can see how confusion
> could arise about dividing by 255, but that situation is different.

Thank you indeed! I have had a lot of confusion about this issue in the 
(recent) past as you may remember :-] . This seems to clearly summarize 
the problem.

-- 
Thomas

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