Bug 275829

Summary: Brush outline artefact crossing less than 25% of viewport without OpenGL
Product: [Applications] krita Reporter: David REVOY <info>
Component: GeneralAssignee: Dmitry Kazakov <dimula73>
Severity: major CC: cberger, dimula73, halla
Priority: NOR    
Version: git master (please specify the git hash!)   
Target Milestone: ---   
Platform: Compiled Sources   
OS: Linux   
Latest Commit: Version Fixed In:
Sentry Crash Report:

Description David REVOY 2011-06-16 17:50:04 UTC
Version:           svn trunk
OS:                Linux

I started working on a large packaging painting, and I discovered this effect displayed by the brush outline when zoom out is less than 25% : http://david.revoy.free.fr/forums/krita/krita-bug-artefact.jpg

This little pixels disapears when you pan / zoom or fly over with the brush outline and doesn't print into the artwork , but they are really annoying. 
They happen whithout OpenGL activated , with OpenGL there is no display problem, but my computer is slower with OpenGL than without.

Reproducible: Always
Comment 1 David REVOY 2011-06-16 17:59:26 UTC
I tryed to reproduce, but it's hard ... But opening this file http://david.revoy.free.fr/forums/krita/krita-bug-artefact_exemple.xcf with Krita does it everytime , I hope it will make easier the test for reproductibility of the bug.
Comment 2 Sven Langkamp 2011-06-19 00:31:32 UTC
*** Bug 269456 has been marked as a duplicate of this bug. ***
Comment 3 Sven Langkamp 2011-06-19 14:10:34 UTC
*** Bug 273844 has been marked as a duplicate of this bug. ***
Comment 4 Sven Langkamp 2011-06-19 14:17:14 UTC
Git commit 7be561f4b4c5bd900133c0d82c2b8c6d51122cbf by Sven Langkamp.
Committed on 19/06/2011 at 14:15.
Pushed by langkamp into branch 'master'.

fix artefacts on qpainter canvas

M  +9    -6    krita/ui/tool/kis_tool_freehand.cc     

Comment 5 David REVOY 2011-06-19 17:52:26 UTC
Many thanks Sven, I tested 10min on the files where I had the issues and it disapear. I can't reproduce it now the way I did before, so it looks really fixed... And that's really help my actual project where I have large image to paint on. Cool !
Comment 6 Halla Rempt 2011-07-01 07:40:30 UTC
Well, seems that David has found some more presets that give issues, so reopening this bug since https://bugs.kde.org/show_bug.cgi?id=269456 is marked as a duplicate of this.
Comment 7 Halla Rempt 2011-07-07 09:35:00 UTC
I've also seen artefacts from the brush outline myself.
Comment 8 Dmitry Kazakov 2011-11-20 15:37:14 UTC
I cannot reproduce these artifacts with the David's preset, could you check this now?
Comment 9 Dmitry Kazakov 2012-02-08 06:14:12 UTC
*** Bug 289174 has been marked as a duplicate of this bug. ***
Comment 10 Dmitry Kazakov 2012-02-08 06:15:42 UTC
When you paint with tablet and changes the pressure actively, the garbage still appears on the canvas.