https://bugs.kde.org/show_bug.cgi?id=517034
Bug ID: 517034
Summary: [Android] Multi-finger gestures (such as pinch zooming
and changing the brush size with 3-finger drag) can
oftentimes cause unintentionally painted dots
Classification: Applications
Product: krita
Version First 6.0.0-beta2
Reported In:
Platform: Android
OS: Android 14.x
Status: REPORTED
Severity: normal
Priority: NOR
Component: Shortcuts and Canvas Input Settings
Assignee: [email protected]
Reporter: [email protected]
Target Milestone: ---
Created attachment 190312
--> https://bugs.kde.org/attachment.cgi?id=190312&action=edit
Video of unintentionally painted dots while pinch zooming
SUMMARY
When touch painting, multi-finger gestures (such as pinch zooming and changing
the brush size with 3-finger drag) can oftentimes result in unintentionally
painted dots while performing the gestures repeatedly.
See attachment for video of the bug.
STEPS TO REPRODUCE (METHOD 1)
1. Settings, Configure Krita, Canvas Input Sertings, Change Primary Setting
2. Create new shortcut: "Gesture, Three Finger Drag, Normal"
3. On the canvas, repeatedly use 3 finger drags to change the brush size.
STEPS TO REPRODUCE (METHOD 2)
When touch painting, use 2 fingers to rapidly pinch zoom in and out of the
canvas repeatedly. Keep doing this for about a minute.
OBSERVED RESULT
In many instances, following the above steps results in unintentionally painted
dots on the canvas at the end of the gesture. This forces the user to perform
an undo to get rid of this dot.
EXPECTED RESULT
There are no unintentionally painted dots at the end of the multi-finger
gesture.
Additionally, tap-to-paint functionality resumes AFTER all fingers are lifted
from the screen.
The correct, expected behavior can be observed in Drawpile for Android: pinch
zooming there doesn't result in unintentionally painted dots, but the user can
continue the desired tap-to-paint after they finish pinch zooming.
SOFTWARE/OS VERSIONS
Android 16
arm64
Latest stable/beta/nightly builds of Krita as of March 2, 2026
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