Bug 333717 - Assistants/perspective grid result in significant performance decrease in Gemini vs Desktop
Summary: Assistants/perspective grid result in significant performance decrease in Gem...
Status: RESOLVED UNMAINTAINED
Alias: None
Product: krita
Classification: Applications
Component: Krita Gemini (show other bugs)
Version: unspecified
Platform: unspecified Microsoft Windows
: HI normal
Target Milestone: ---
Assignee: Arjen Hiemstra
URL:
Keywords: triaged
Depends on:
Blocks:
 
Reported: 2014-04-22 08:36 UTC by Stuart Dickson
Modified: 2016-05-18 21:33 UTC (History)
3 users (show)

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Description Stuart Dickson 2014-04-22 08:36:47 UTC 
As reported by a user "trow128":
"The drawing assistant rulers and perspective grid cause severe lag for me."
(compared to Krita Desktop from krita.org)

http://steamcommunity.com/app/280680/discussions/0/558752449803284773/#p2
Comment 1 Arjen Hiemstra 2014-04-25 11:48:02 UTC 
Assistants are disabled when switching to Sketch mode, so those are not really relevant - though the assistant disabling can be a bug of itself. With perspective grid I notice no performance degradation with a simple brush. So I would like some more information about this.
Comment 2 bartosz.styperek 2014-05-17 09:51:39 UTC 
Actually I find perspective assistant to be slow on my desktop PC (win7) too.  Try adding few perspective rulers, and then rotating canvas, even with OpenGL enabled it, is becoming really slow.
Comment 3 Dmitry Kazakov 2015-06-15 09:02:12 UTC 
Seems to be not fixed
Comment 4 Ilya V. Portnov 2015-06-21 07:38:50 UTC 
Reproduces at my system. The key point seems to have any rotation of canvas. With not rotated canvas, it goes smooth; if I rotate canvas a bit, it becomes very slow.
Comment 5 Dmitry Kazakov 2015-06-21 08:26:37 UTC 
Triaged by Ilya V. Portnov
Comment 6 Halla Rempt 2016-05-18 21:33:14 UTC 
I'm sorry, we had to drop support for the sketch and gemini variants of Krita because with the existing code, we couldn't make it work with Qt 5.