Date: Mon, 1 Jul 2013 10:58:05 -0300 From: yafulinux@gmail.com
To: gimp-developer-list@gnome.org
Subject: [Gimp-developer] Brush from Clipboard: Imperfections with some dynamics

In this example: http://nsae01.casimages.net/img/2013/07/01/130701034929273527.png

I used the brush from clipboard that you can see in the image, and Paintbrush tool with brush "Spacing=1". The imperfections that can be seen are the blue lines on the red strip, and the red lines on the blue strip. The problem occurs with Dynamics Off and some other dynamics. I am using GIMP 2.8.6 on Kubuntu Linux. _______________________________________________ gimp-developer-list mailing list
List address: gimp-developer-list@gnome.org List membership: https://mail.gnome.org/mailman/listinfo/gimp-developer-list

Occurs in win32 builds too.

I'm experimenting with it now and I notice that if the clipboard brush is all one solid color then the behavior fails to happen - it has to do with brushes containing multiple colors.

More interestingly, if the clipboard brush includes transparent pixels around its edge then the strange behavior does not happen. It's like when GIMP needs to do alpha-blending around the edge of a clipboard brush, it interpolates using edge pixels from both sides ("wraparound") instead of that side only ("stretch").

Either way it definitely looks like a bug to report.

-- Stratadrake strata_ranger@hotmail.com
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Numbers may not lie, but neither do they tell the whole truth.