Bug 176187 - Painting with more layers flicks
Summary: Painting with more layers flicks
Status: RESOLVED FIXED
Alias: None
Product: krita
Classification: Applications
Component: General (show other bugs)
Version: unspecified
Platform: Compiled Sources Linux
: NOR normal
Target Milestone: ---
Assignee: Dmitry Kazakov
URL:
Keywords:
: 215355 (view as bug list)
Depends on:
Blocks:
 
Reported: 2008-11-26 22:54 UTC by LukasT
Modified: 2010-05-28 17:02 UTC (History)
5 users (show)

See Also:
Latest Commit:
Version Fixed In:
Sentry Crash Report:


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Description LukasT 2008-11-26 22:54:06 UTC
Version:            (using KDE 4.1.3)
OS:                Linux
Installed from:    Compiled From Sources

Steps to reproduce:
1. Fill base layer with nice color e.g. green
2. Add new layer
3. Select sumi-e (default settings) or paint brush (set dimension of brush to say 50)
4. Start to paint on second layer.
5. Flickering of the stroke's parts which are added
Comment 1 LukasT 2009-02-26 19:14:27 UTC
I saw some flick here and there but it is not so bad as when it was reported.
Comment 2 Elián Hanisch 2009-03-20 16:05:29 UTC
I started to notice this now, I didn't before for some reason

start new document, the size seems to not matter, but the flickering is bigger in smaller docs, I used 640x480
create two layers, one solid white and the other solid black
use the sumi-e brush, with a scale factor of 10
paint a lot of  strokes in the topmost layer, you will see blocks of the layer below faintly while you paint.

the bug is a bit erratic and not so reproducible, at one point I saw it for every stroke I made, but after a restart only with some.
Comment 3 Cyrille Berger 2009-09-06 15:35:39 UTC
I can't reproduce, does it still happen ?
Comment 4 Elián Hanisch 2009-09-09 00:41:06 UTC
yep, I tried with trunk, still reproduceable, but only while opengl is active
Comment 5 LukasT 2009-09-09 12:12:43 UTC
I noticed the flickering even on a singe layer image. Checkers are drawn but QImage lags behind few miliseconds or so..Dimitry send some patch to reviewboard and I send a video showing the flickering which gets even worse with that patch. I don't know how that ended.
Comment 6 Dmitry Kazakov 2009-09-09 21:49:28 UTC
That is not due to the patch. That is due to races between KisImage and KisView. The patch had just revealed them more. I'm going to fix them in the second part of my layers refactor - something like a rect-scheduler. So you can assign it to me.
Comment 7 Halla Rempt 2009-10-12 18:33:39 UTC
Assign as per request.
Comment 8 Sven Langkamp 2010-03-31 17:22:23 UTC
*** Bug 215355 has been marked as a duplicate of this bug. ***
Comment 9 Dmitry Kazakov 2010-05-28 17:02:23 UTC
Happily fixed after r1129585