https://bugs.kde.org/show_bug.cgi?id=447562
David REVOY <i...@davidrevoy.com> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|REPORTED |NEEDSINFO
CC| |i...@davidrevoy.com
Resolution|--- |WAITINGFORINFO
--- Comment #2 from David REVOY <i...@davidrevoy.com> ---
Hi, I can't reproduce it on Kubuntu Linux 20.04 with the appimage of 5.0.0. I
tried various stabilizer settings, high and low, and its ok. Same with various
checkboxes. But I have a large tablet with many time more input and resolution
than the Wacom one small you use (Wacom CTL-472), so the events sent by my
device might fills the gap. Also, I have another driver obviously on this
platform.
For background info: Mypaint brush engine already has its own method built-in
for smoothing the brush stroke (named slow tracking, afair). And, to do so
(smoothing/stabilizer) it requires to lag a little (in milliseconds, usually
not that much perceptible) in order to get from the origin to the destination
and then render the line smoothed in-between the two points. Your bug might be
a collision of this built-in smoothing/stabilizer with the Krita
smoothing/stabilizer method on top. Especially if your operating system or
driver report different timing, or tablet input for both method at same time?
Or maybe Mypaint engine require more coordinate? No idea, I'm not a dev, just a
tester.
But here is things you can try that might help adding details for the report:
1. Select the Pencil 2b (mypaint), go to the brush editor , and reduce "stroke
duration log" to zero (be careful; the slider at minimum go to -1). Test.
Report if you see improvements or degradation.
2. Try also with "Slow Tracking" (the built-in Mypaint stabilizer). Report if
you see improvements or degradation.
3. Try the "Use Tablet Driver Stamps For Brush Speed" in the tablet settings in
Krita. (
https://docs.krita.org/en/reference_manual/preferences/tablet_settings.html )
maybe this timestamp things can help about catching better driver input.
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