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List:       kde-bugs-dist
Subject:    [Bug 281364] New: Bad aliasing problem when using autobrush at small
From:       <boud () valdyas ! org>
Date:       2011-09-05 7:53:14
Message-ID: bug-281364-17878 () http ! bugs ! kde ! org/
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https://bugs.kde.org/show_bug.cgi?id=281364

           Summary: Bad aliasing problem when using autobrush at small
                    sizes
           Product: krita
           Version: svn trunk
          Platform: Unlisted Binaries
        OS/Version: Linux
            Status: NEW
          Keywords: release_blocker
          Severity: critical
          Priority: NOR
         Component: Brush engine
        AssignedTo: krita-bugs-null@kde.org
        ReportedBy: boud@valdyas.org


We have a bad aliasing problem when painting with a small autobrush. It is a
regression since 2.3. See
http://forum.kde.org/viewtopic.php?f=138&t=96043&hilit=ramon&start=15 for more
discussion.

This is a really big problem for Krita -- we need to find a solution.

Also from IRC:

18:05:36 < basse> http://dl.dropbox.com/u/2965641/a.png
18:05:57 < basse> lot of aliasing
...
08:30:37 < basse> boud: yes, i compiled git version, so this is recent krita
08:32:30 < basse> so i'm not trying to see what is different, why autobrush
produces this
09:02:28 < boud> basse: we had a discussion about it on the forum; we
09:02:34 < boud> re not sure what happens either...
09:03:52 < basse> http://dl.dropbox.com/u/2965641/aa.png  
09:04:14 < basse> ok, have to check the forums, but its not happening so much
with big brushes.. but 
                  small ones you can't really use :( 
09:04:32 < boud> the weird thing is, with the predefined brushes it seems to
work ok
09:04:48 < basse> and i dont remember this behaviour in the krita i had from
repos
09:05:07  * basse checks predefineds
09:06:54 < basse> oh, you are right. it's better there.
09:07:07 < basse> i had 1x1 pixel brush in gimp too because i never trusted
those autobrushes
09:07:50 < boud> there might even be a difference if you select the soft brush
option in the autobrush
09:08:43 < basse> there was a bit i noticed that, but not much
09:09:00 < basse> funny, if i scale my 1x1 pixel brush it comes out as triangle
:)  
09:09:15 < basse> it's meant to be 1 pixel size anyways

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