Bug 515170

Summary: Multibrush tool artifacting when brush instances intersect with certain brush engines
Product: [Applications] krita Reporter: Luna <ciubix8514>
Component: Brush enginesAssignee: Krita Bugs <krita-bugs-null>
Status: REPORTED ---    
Severity: normal    
Priority: NOR    
Version First Reported In: 5.2.13   
Target Milestone: ---   
Platform: Other   
OS: All   
Latest Commit: Version Fixed/Implemented In:
Sentry Crash Report:
Attachments: Screenshot showing the artifacting

Description Luna 2026-01-27 20:43:42 UTC
Created attachment 188962 [details]
Screenshot showing the artifacting

SUMMARY
Multibrush tool produces artifacts when individual brush instances intersect with each other, this happens with the following brush engines:
- Color smudge
- Clone
- MyPaint
- Shape

STEPS TO REPRODUCE
1. Select a brush that uses one of the above engines
2. Select the multibrush tool
3. Set the type to translate and increase the number of brushes
4. Do a stroke, and make multiple instances of the brush intersect

OBSERVED RESULT
This creates artifacting at the intersection of the brushes (see attachment)