Bug 504929

Summary: Brush Saturation setting adding Value.
Product: [Applications] krita Reporter: Dave <undeaddaveart>
Component: Brush Engine/ShapeAssignee: Krita Bugs <krita-bugs-null>
Status: REPORTED ---    
Severity: minor    
Priority: NOR    
Version First Reported In: 5.2.9   
Target Milestone: ---   
Platform: Microsoft Windows   
OS: Microsoft Windows   
Latest Commit: Version Fixed/Implemented In:
Sentry Crash Report:
Attachments: An illustration showing the issue.

Description Dave 2025-05-28 17:15:39 UTC
Created attachment 181835 [details]
An illustration showing the issue.

Instead of a proper HSY or HSV transform, the Saturation option adds white, making it similar to the already existing Value brush option.


STEPS TO REPRODUCE
1. Create a new brush.
2. Enable Saturation control with a curve intended to de-saturate.
3. Paint on the canvas.

OBSERVED RESULT
Color becomes significantly lighter.

EXPECTED RESULT
Color becomes significantly less saturated.

SOFTWARE/OS VERSIONS
Krita 5.2.9
Windows: 11