Bug 350394

Summary:	Stuttering/bad performances on deform tools on Windows 8.1 - Krita 2.9.6 (git2ca3028)
Product:	[Applications] krita	Reporter:	Nathan GDquest <nathan>
Component:	Tools/Transform	Assignee:	Krita Bugs <krita-bugs-null>
Status:	RESOLVED LATER
Severity:	normal	CC:	halla
Priority:	NOR
Version First Reported In:	unspecified
Target Milestone:	---
Platform:	Microsoft Windows
OS:	Microsoft Windows
URL:	https://youtu.be/tS4RZaA1xn0
Latest Commit:		Version Fixed/Implemented In:
Sentry Crash Report:

Description Nathan GDquest 2015-07-20 07:14:57 UTC

I uploaded a video to showcase the problem. The warp tool is unresponsive starting from small resolution assets, and the liquify tool is mostly slow to respond. It was the case as well with Krita 2.9.5. This makes the deformation tools unusable here.

Reproducible: Always




Dunno if the GPU can play a role, but I have a GTX970 with up to date drivers.

Comment 1 Halla Rempt 2015-08-07 14:48:57 UTC

Hi Nathan,

Thanks for your report. We know that liquify's performance should be improved, but warp seems fine here. Can you check whether you've got opengl enabled in settings/display? That should make a lot of difference.

Comment 2 Nathan GDquest 2015-08-07 17:27:21 UTC

I did some research and had tried disabling and re-enabling open gl before posting the bug. So the video is actually with OpenGL on - without it, it's much slower.

Comment 3 Halla Rempt 2015-08-11 07:32:29 UTC

There might be ways to speed up liquify, but it's not something we have time to work on right now. I've added a note in our todo system:

https://phabricator.kde.org/T541

Comment 4 Nathan GDquest 2015-08-11 11:08:29 UTC

No problem! Thank you for looking at it.