https://bugs.kde.org/show_bug.cgi?id=460412
Bug ID: 460412
Summary: Blur effect conflict with scale effect when draw
rounded rect with blur behind.
Classification: Plasma
Product: kwin
Version: unspecified
Platform: unspecified
OS: Linux
Status: REPORTED
Severity: normal
Priority: NOR
Component: effects-various
Assignee: kwin-bugs-n...@kde.org
Reporter: sendbypyt...@foxmail.com
Target Milestone: ---
Created attachment 152798
--> https://bugs.kde.org/attachment.cgi?id=152798&action=edit
abnormal blur
SUMMARY
When I develop my application(which has rounded window), I found some problem
(lots of blur horizontal striation) when the app open/close.
STEPS TO REPRODUCE
1. Run or stop the app.
2. Watch it.
OBSERVED RESULT
I have added an attachment.
SOFTWARE/OS VERSIONS
Linux/KDE Plasma: 5.18 and 5.26 (only tested on these version)
(available in About System)
KDE Plasma Version: 5.26
KDE Frameworks Version: 5.98
Qt Version: 5.15.5
ADDITIONAL INFORMATION
I tried to modify blur effect's shader, make all fragColor = vec4(0, 1, 0, 1),
the horizontal striation not disappear, just turn to green striation. Then I
tried to changed scale effect, found that only scale property influence the
result. If someone can provide ideas, I'd like to try~
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