Created attachment 70190 [details] A tetris piece in the curve after the rasterization step See attachement: This kind of blob ( Tetris piece, or rookwise connected) should not happen.
You can enable anti-aliasing for curves in the settings panel. It's a setting because some users didn't want the lines anti-aliased. We don't paint these lines ourselves, that's QPainter's work, so there's nothing much we can do about the aliased case. Sorry, I'm going to have to close this one -- though there's certainly a case to be made for making AA the default, instead of aliased.
Git commit dc97f77a474f609f80430e1a5d169fdc8c4b86af by Boudewijn Rempt. Committed on 06/04/2012 at 15:53. Pushed by rempt into branch 'master'. Anti-alias the curves by default Because it looks prettier :-) M +1 -1 krita/ui/kis_config.cc http://commits.kde.org/calligra/dc97f77a474f609f80430e1a5d169fdc8c4b86af
Created attachment 70191 [details] Pixels are wiggling aroind the curve
The anti-aliased curve does not look good either. I have never noticed this with QPainter's curve drawing algorithm. Something must happen after its job is done.
hm, you're right. Weird stuff is happening here.
Git commit b044df223dbcb801472d150bec8c070f10cc6216 by Boudewijn Rempt. Committed on 06/04/2012 at 16:13. Pushed by rempt into branch 'master'. Let Qt draw the polyline We used to draw lines ourselves, giving a bad result. M +5 -8 krita/ui/widgets/kis_curve_widget.cpp http://commits.kde.org/calligra/b044df223dbcb801472d150bec8c070f10cc6216
Can you check whether this is better for you?
I remember Dmitry made it aliased due to precision by default. It is precision vs look-good decision here, we change the defaults back-and-forth.
I know... but this time I did something more: I also changed the painting algorithm and used QPainter to paint the path directly, instead of us painting line segment by line segment.