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List:       kde-kimageshop
Subject:    Re: Patch: Many composite/blend modes mostly compatible to Adobe
From:       Boudewijn Rempt <boud () valdyas ! org>
Date:       2011-01-30 19:34:14
Message-ID: 201101302034.15023.boud () valdyas ! org
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On Saturday 29 January 2011, Silvio Heinrich wrote:
> On 01/29/2011 04:30 PM, David REVOY wrote:
> > 
> > > @Silvio Heinrich : if gimp really uses just HSV then it is not really 
> > > superior.
> > Oh, I really don't know nothing about how and why color modes prefer 
> > use HSV or HSL luma , I'm just a digital painter user. The only 
> > feedback I can give are with pictures like the previous mail :-)
> > Btw, you are right , my use of 'superior' word needs to be explain : 
> > the color mode in Photoshop ( I used it for years too) don't work 
> > nicely with yellow/orange tones painting over gray. You obtain only a 
> > muddy green/yellowish tones. That's why I called the Gimp one 
> > 'superior' ; because if you use it as a painter to recolor a part and 
> > like to use yellow or orange ; the Gimp one will be more efficient for 
> > this case. That's why I always prefered the way Gimp handle it than 
> > Photoshop.
> > Just to defend that the two way are usefull :) and I agree and like if 
> > you planed to support more then one color model. Good way !  and 
> > thanks for the link.
> > 
> > 
> > --David
> Hmm... this muddy yellowish tone is actually dark yellow i would say :D.
> I don't want to annoy you but i just did a little speedpainting (just a 
> hour or so, nothing fancy) in value (grayscale)
> and then colored it in yellow with HSL (left) and HSV (right).
> I think one can see that the left side preserves the lightness of the 
> image much better then the right side.
> This is the reason why the photoshop way is usually preferred.
> I know that many of the really great artists paint in value first (to 
> get the contrast between light and dark right at the start) and then 
> they add color. Since i used gimp for years this didn't really work for 
> me because the HSV coloring changes the lightness too much...
> It's funny that you actually were annoyed by photoshop and went to gimp.
> In contrary i was so annoyed after years of using gimp that i wanted to 
> switch to photoshop ^__^ but then i found krita :D
> 


Well, I'm sure we can have both types of blending -- and maybe even an option or a \
switch to use one when importing xcf or another one when importing psd. The only \
thing that has prevented me from okaying merging plassy's branch is that I want \
Cyrille's option on the patch. He did the blending modes, mostly, with only a little \
help from me, so I'm pretty clueless here.

-- 
Boudewijn Rempt | http://www.valdyas.org, http://www.krita.org
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