Jürgen Hubert wrote:
> When reading about Corel Painter, I've frequently come across a so-called 
> "Digital Watercolor" effect, which apparently simulates how wet paint 
> behaves when you apply color to a canvas - the "virtual pigments" are 
> gradually diffused across the surface of the paper and then absorbed into it 
> over time.
> This sounded pretty fascinating, and I was wondering if anyone has attempted 
> to create the same effect with GIMP. Or would it require too radical a 
> rewrite of the code? After all, currently GIMP assumes that it doesn't 
> matter _when_ you make a certain stroke with the virtual pen; it doesn't 
> matter if you do a certain stroke two seconds or two minutes after the 
> previous one - the result will be the same. But to implement such an effect, 
> some kind of time-sensitive mechanism would have to be included - or at 
> least, that's my impression from reading about it...

Not specifically GIMP, but take a look at those projects:


All are free software and like Painter.
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