Bug 465024 - The opacity of the smudge brush engine does not work as expected
Summary: The opacity of the smudge brush engine does not work as expected
Status: CONFIRMED
Alias: None
Product: krita
Classification: Applications
Component: Brush engines (show other bugs)
Version: 5.1.5
Platform: Compiled Sources Microsoft Windows
: NOR normal
Target Milestone: ---
Assignee: Krita Bugs
URL:
Keywords:
Depends on:
Blocks:
 
Reported: 2023-01-30 03:44 UTC by killy
Modified: 2023-01-30 03:49 UTC (History)
0 users

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Description killy 2023-01-30 03:44:06 UTC 
SUMMARY
The opacity of the smudge brush engine does not work as expected 

STEPS TO REPRODUCE
1. Select a smudge brush, and set the smudge length of the smudge brush to 100% and the opacity to 50%.
2. Repeated smearing will make the opacity of the color overlap and deepen, similar to the effect of flow, which is inconsistent with the expected opacity working mode.

We can also find similar problems in these threads：
https://krita-artists.org/t/color-smudge-opacity-vs-flow/46680/8
https://krita-artists.org/t/opacity-in-smudge-brush-engine/33431

OBSERVED RESULT
https://krita-artists.org/uploads/default/original/3X/7/c/7c1939054362ef015ccf42be084747681d4b3efc.png

EXPECTED RESULT
https://krita-artists.org/uploads/default/original/3X/e/8/e8fe6e72b6737a3f331fae802eb120819ffa4b55.png

SOFTWARE/OS VERSIONS
Windows: 
macOS: 
Linux/KDE Plasma: 
(available in About System)
KDE Plasma Version: 
KDE Frameworks Version: 
Qt Version: 

ADDITIONAL INFORMATION