Update of bug #18964 (project mypaint):
Severity: 3 - Normal => 1 - Wish
_______________________________________________________
Follow-up Comment #5:
You seem very sure that one system is correct and another is incorrect. It
might not be so clear cut as you think!
Do you have normal colour vision? If so, give the exercise at
http://gurneyjourney.blogspot.com/2010/02/color-wheel-part-3.html a spin and
tell me what colour you see when looking at white after overstimulating with
green. Magenta, not red, emerges for me, so I don't think that the notions of
complementary etc. we use are misleading at all, and I would not accept any
patch to remove them unless it provided a better alternative.
(The entire colour wheel series on that is worth a read too, BTW)
Obviously, our colour selectors can use any colour space we like. We've done
the simple thing in the past; it's easy to just spin thru an HSV wheel from 0
to 2π. However, the choices for the monitor RGB primaries you'll find
equidistant around that wheel are based on what the human eye is responsive
to, for obvious reasons.
tl;dr - RYB colourspaces (Munsell, Itten, pick your hero) are based on
historically available pigments. It overly favours reds and oranges as a
result of this. It has complementaries but they aren't particularly indicative
of what the eye's wiring is rigged up to treat as opponent colours. RGB
phosphors and the resulting HSV transform are based on what the human eye
actually does with the incoming light, and its complementary pairs match the
visual system's opponent colours. MyPaint doesn't really pretend to be a
perfect simulation of natural media and pigments, so IMO it doesn't need to
use a conventional pigment-like colour space.
Thanks for the link to the stackoverflow page; perhaps we should roadmap and
revisit colour selectors at some point (it's crazy having so many floating
around when one selector with a tab for different styles and spaces would make
more sense...)
_______________________________________________________
Reply to this item at:
<http://gna.org/bugs/?18964>
_______________________________________________
Message sent via/by Gna!
http://gna.org/
_______________________________________________
Mypaint-bugs mailing list
[email protected]
https://mail.gna.org/listinfo/mypaint-bugs
