https://bugs.kde.org/show_bug.cgi?id=362730
Bug ID: 362730
Summary: Instant preview makes Ctrl+LMB color picking
unresponsive
Product: krita
Version: 3.0 Beta
Platform: Other
OS: Linux
Status: UNCONFIRMED
Severity: normal
Priority: NOR
Component: OpenGL Canvas
Assignee: krita-bugs-n...@kde.org
Reporter: tyson...@mail.com
In Krita 3.0 Beta, when Instant preview is enabled, Ctrl+LMB to pick color is
not very responsive. I often need to keep Ctrl+LMB pressed down, wait for a
second until a new color is picked. This pretty much makes Ctrl+LMB color
picking useless.
It gets more obvious when:
1) the picture is big;
2) a big brush stroke was just applied (and probably still not finish drawing);
3) a brush stroke was just undone.
It feels like Qt OpenGL queue congestion to me.
Instant Preview is causing so much problem now:
1) Undo/Redo has visual glitches;
2) This bug;
3) Overall slowdown and more.
Are these normal by design for enabling instant preview? Or they are issues to
be addressed?
Reproducible: Always
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