Bug 443295 - Reference image tanks canvas pan/zoom performance
Summary: Reference image tanks canvas pan/zoom performance
Status: CONFIRMED
Alias: None
Product: krita
Classification: Applications
Component: Tools/Reference Images (show other bugs)
Version: nightly build (please specify the git hash!)
Platform: Microsoft Windows Microsoft Windows
: NOR normal
Target Milestone: ---
Assignee: Krita Bugs
URL:
Keywords:
: 452528 (view as bug list)
Depends on:
Blocks:
 
Reported: 2021-10-04 12:33 UTC by Alvin Wong
Modified: 2022-07-12 13:16 UTC (History)
2 users (show)

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Description Alvin Wong 2021-10-04 12:33:52 UTC 
When reference images are visible, they severely affect the canvas panning/zooming performance. On my Surface Pro 2017 I get about 40-50fps normally but only 10-15fps with reference images visible.

Note that it does not really affect painting performance.

The cause is probably that reference images are drawn as decorations using QPainter instead of as OpenGL textures.

(Checked with Windows nightly e1569dee2f)
Comment 1 tomtomtomreportingin 2022-07-12 13:16:24 UTC 
*** Bug 452528 has been marked as a duplicate of this bug. ***