Bug 183701 - different brush behaviour if the layer is transparent
Summary: different brush behaviour if the layer is transparent
Status: RESOLVED FIXED
Alias: None
Product: krita
Classification: Applications
Component: General (show other bugs)
Version: git master (please specify the git hash!)
Platform: Ubuntu Unspecified
: NOR normal
Target Milestone: ---
Assignee: Halla Rempt
URL:
Keywords:
Depends on:
Blocks:
 
Reported: 2009-02-08 17:17 UTC by Elián Hanisch
Modified: 2009-03-30 22:12 UTC (History)
1 user (show)

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Description Elián Hanisch 2009-02-08 17:17:30 UTC 
Version:           svn trunk (using KDE 4.1.2)
Installed from:    Ubuntu Packages

Painting in a transparent layer with a brush set to a low opacity value does not have the same look if done in a filled layer. Use built-up mode for greater effect.

1. start a rgb *white* document
2. set the brush opacity to something like 25%
3. paint
4. create a new layer, this one will be transparent
5. paint over this new layer
6. note the difference.

screenshot:
http://techbase.kde.org/Image:Krita_krush1.jpg#file
Comment 1 Cyrille Berger 2009-03-30 22:12:59 UTC 
SVN commit 947056 by berger:

Fix: different brush behaviour if the layer is transparent.

don't copy the alpha channel from the source, since it must be blend with opacity

BUG:183701

 M  +5 -1      KoCompositeOpOver.h  


WebSVN link: http://websvn.kde.org/?view=rev&revision=947056