Bug 409144 - Problems with precise and fast lines. Comic creation oriented
Summary: Problems with precise and fast lines. Comic creation oriented
Status: CONFIRMED
Alias: None
Product: krita
Classification: Applications
Component: Tablets (tablet issues are only very rarely bugs in Krita!) (show other bugs)
Version: 4.2.1
Platform: Microsoft Windows Microsoft Windows
: NOR normal
Target Milestone: ---
Assignee: Krita Bugs
URL:
Keywords:
Depends on:
Blocks:
 
Reported: 2019-06-24 16:46 UTC by RamonMiranda
Modified: 2019-09-26 07:44 UTC (History)
3 users (show)

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


Attachments
Straigh line at the beggining . Lost signal on tablet? (61.14 KB, image/jpeg)
2019-06-24 16:46 UTC, RamonMiranda
Details

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Description RamonMiranda 2019-06-24 16:46:02 UTC
Created attachment 121116 [details]
Straigh line at the beggining . Lost signal on tablet?

SUMMARY
It is not easy to see because is related with high precission and speed. So maybe more other users didn't notice
I noticed this because I am teaching krita to a comic artist. He needs a very good brushtroke. I have tested this in AZ drawing and nothing happens. Also csp and nothing happens. Maybe a bug here in windows 10.It seems to be usual in other users. I report under tablet support because i think is a problem on how Wacom send info to tablet in Krita. 
STEPS TO REPRODUCE
1.Open Krita 4.2.1 and select Ink 3 G-pen for example
2. Draw several fast brushstrokes with different pressure values.  
3. Repeat and repaet because not always happens. 

OBSERVED RESULT
This produce a weird line. Attached image show better the effect

EXPECTED RESULT
Cleaner and presise line. That makes the difference between a good ink job and a normal job.

SOFTWARE/OS VERSIONS
Windows: W10
macOS: 
Linux/KDE Plasma: 
(available in About System)
KDE Plasma Version: 
KDE Frameworks Version: 
Qt Version: 

ADDITIONAL INFORMATION
My wacom ptk440 /intuos 4s)

I have tested also in Krita 4.1.7 to see how if this is happening before.and yes. Same results.
Comment 1 vanyossi 2019-06-25 00:00:43 UTC
This also happens in macOS with fast strokes with wacom and genius tablets.

Could it be that there is some latency issues when initializing the stroke? I don't recall experiencing this on Linux builds.
Comment 2 wolthera 2019-09-21 15:41:43 UTC
If Ivan, a developer, can reproduce this, it is confirmed.
Comment 3 Dmitry Kazakov 2019-09-26 07:44:46 UTC
Hi, Ramon!

Could you please try to go to the Wacom driver settings, search for "double click" and "right click by hold-down" options and disable them?

This bug usually happens because the driver holds events for a fractions of a second to recognize right-click or double-click.