Bug 367842

Summary:	Smudge Brush Radius could use a better sampling method.
Product:	[Applications] krita	Reporter:	wolthera <griffinvalley>
Component:	Brush engines	Assignee:	Krita Bugs <krita-bugs-null>
Status:	CONFIRMED ---
Severity:	wishlist	CC:	halla, slokesh416
Priority:	NOR
Version:	git master (please specify the git hash!)
Target Milestone:	---
Platform:	Compiled Sources
OS:	Linux
Latest Commit:		Version Fixed In:
Attachments:	Brush with high smudge radius.

Description wolthera 2016-08-26 09:10:51 UTC

Right now, when using a smudge brush with a brush radius of 50+%, there will be 'banding artefacts', which is caused by the sampling of the smudge radius being too even, giving big color changes too quickly. If the sampling could be slightly different, like random or gaussian, the qaulity would be much better. I will attach a sample kpp file showing the problem.

Reproducible: Always

Comment 1 wolthera 2016-08-26 09:14:39 UTC

Created attachment 100779 [details]
Brush with high smudge radius.

100% shows it, even with sensors on.
50% needs the sensors off.

Comment 2 lokesh 2017-02-17 22:06:38 UTC

Are artifacts like circular bands appearing when dragging it on canvas .
I would be glad to work on it . This would be my first time with krita . I might 
need some help . thanks

Comment 3 Halla Rempt 2017-02-18 08:23:51 UTC

If you want to hack on Krita, join #krita on irc.freenode.net. All the developers hang out there, so you can ask questions if you get stuck somewhere.