Bug 442019 - Brush stroke irregular
Summary: Brush stroke irregular
Status: RESOLVED NOT A BUG
Alias: None
Product: krita
Classification: Applications
Component: Brush Engine/Bristle (show other bugs)
Version: 4.4.8
Platform: Microsoft Windows Microsoft Windows
: NOR normal
Target Milestone: ---
Assignee: Krita Bugs
URL:
Keywords:
Depends on:
Blocks:
 
Reported: 2021-09-05 00:23 UTC by josh godin
Modified: 2021-09-05 08:17 UTC (History)
2 users (show)

See Also:
Latest Commit:
Version Fixed In:
Sentry Crash Report:


Attachments
Brush stroke behavior on canvas. Brushes occasionally create a stroke which shoots off canvas as well. (223.71 KB, image/jpeg)
2021-09-05 00:23 UTC, josh godin
Details
Brush stroke behavior within Scratchpad. Seemingly normal. (444.20 KB, image/jpeg)
2021-09-05 00:23 UTC, josh godin
Details

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Description josh godin 2021-09-05 00:23:06 UTC
Created attachment 141300 [details]
Brush stroke behavior on canvas. Brushes occasionally create a stroke which shoots off canvas as well.

SUMMARY
Brush strokes are completely erratic when created on the canvas. However, brush strokes are perfectly normal within the scratchpad in the brush settings dialogue. If the error occurred in both places I would assume it's a driver issue. But, since the scratchpad is perfect I suspect a bug. Worth noting, I learn software in order to teach it to my students. On this workstation, I have used the following programs (and others) without any brush behavior bugs: Autodesk Sketchbook, Adobe Photoshop, Affinity Photo, Gimp, Inkscape, Clip Studio.


STEPS TO REPRODUCE
I don't suspect the bug will reproduce outside of my system. I believe it's a bug inherent to my particular type of drivers- Wacom ERM stylus drivers for Windows 10. Here's the goofy steps ha.
1. Download latest Krita on a convertible PC with Wacom penabled screen
2. Download latest drivers
3. Paint

OBSERVED RESULT
Erratic brush behavior (all brushes).

EXPECTED RESULT
Correct brush behavior.

SOFTWARE/OS VERSIONS
Windows: Windows 10 Pro version 21h1, build 19043.1165
macOS: 
Linux/KDE Plasma: 
(available in About System)
KDE Plasma Version: 
KDE Frameworks Version: 
Qt Version: 

ADDITIONAL INFORMATION
Comment 1 josh godin 2021-09-05 00:23:53 UTC
Created attachment 141301 [details]
Brush stroke behavior within Scratchpad. Seemingly normal.
Comment 2 tomtomtomreportingin 2021-09-05 00:37:02 UTC
Does switching the tablet input API through Settings -> Configure Krita -> Tablet Settings resolve your issue?
Comment 3 josh godin 2021-09-05 01:11:40 UTC
YES ha. Changing it to Windows 8 fixes the issue, according to some quick rudimentary testing.

Sorry, I'm not too familiar with the program and hadn't explored the options. Thank you for your help!