Op 31/10/2020 om 11:52 schreef Ive:
> Oh, just out of curiosity, do you remember where "Ive's macros" are
> from? At the time I wrote CIE.inc and added a few other function to
> lightsys I did definitely prefer this xyz_2_xyz style. And I think scRGB
> wasn't even defined at this time.
>
Maybe from an "earlier" version of CIE? and/or Lightsys? That seems the
most logical to me.
In the mean time I reviewed my scene code and added the latest Bald
Eagle macros to the collection (see image and scene file attached). I
added all the macros to the scene file. This is what it represents:
(1a) my reference color in linear color space;
(1b) my reference color in standard color space;
(2.1a) Ive's: conversion rgb->srgb of (1a);
(2.1b) idem but with Clipka's saturation/brightness boost added;
(2.2a) Ive's: conversion back srgb->rgb;
(2.2b) idem from the boosted color;
(2.2c) idem but using (1b);
(3.1a) Cousin Ricky's: conversion rgb->srgb of (1a);
(3.1b) idem but with Clipka's saturation/brightness boost added;
(4.1a) Bald Eagle's: conversion rgb->srgb of (1a);
(4.1b) idem but with Clipka's saturation/brightness boost added;
(4.2a) Bald Eagle's: conversion back srgb->rgb;
(4.2b) idem from the boosted color;
(4.2c) idem but using (1b).
These are macros applied indiscriminately. It seems immediately obvious
that Bald Eagle's macros do not need the saturation/brightness boost,
except probably where 4.2c is concerned.
I leave it to the experts to judge if this little exercise (which I
enjoyed doing btw) is of any real use. ;-)
--
Thomas
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