Re: [Gimp-developer] Brush from Clipboard: Imperfections with some dynamics

[Richard Gitschlag <strata_ranger hotmail com>]

> 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
--------------------
Numbers may not lie, but neither do they tell the whole truth.