Weirdly enough, Krita 1.6 did have a fairly accurate watercolor simulation, including wetness, dripping and drying. But it was slow, broke undo and needed a special layer type so we abandoned it for something less physics-based and more effect-based.

As far as I understood from Raph Levien's explanation, the effect you showed above can be achieved with a high-pass filter, whatever that is.

Ico-dY wrote:

Kubuntiac wrote:Showcased!
Thanks for the awesome pic and mini-tute!

You're welcome but you've forgot my name below the picture in the showcase.

Augh! Sorry about that! I *did* actually put your name in, but I tried to link it to your home page, and there seems to be a bug where any HTML markup (such as your linked name) gets stripped. :/ I'd already fixed it a while back though, and your name is there.