Created attachment 119873 [details] Comparison Quick Brush vs. Color Smudge SUMMARY I noticed my paintings always look a bit jagged. This shouldn't be a problem though, even if i do paint at a lower resolution. i then investigated further and noticed the Color Smudge Engine has no subpixel pointer detection like the Quick Brush Engine for example. STEPS TO REPRODUCE 1. Pick any Color Smudge Engine Brush with a size of about 1 px. 2. Zoom in to about 800% 3. Use the line tool to draw a not completely straight line. OBSERVED RESULT There is no antialiasing before the line jumps to the next pixel, no matter the precision in the brush settings. EXPECTED RESULT Any kind of antialiasing SOFTWARE/OS VERSIONS Windows 10: Yes macOS: Not verified, likely a problem too. Linux (Ubuntu): Yes Krita Version: 4.2.0 pre-alpha, though probably not a new thing.
Subpixel is turned off for the smearing mode only(where it can create serious artifacts), it works with the dulling mode. Here's the line of code: https://invent.kde.org/kde/krita/blob/master/plugins/paintops/colorsmudge/kis_colorsmudgeop.cpp#L167
thanks for the quick response! do you know if it's being worked on? but i guess it's good to at least know it's supposed to be like that...
No, it's not something we're working on. Like Wolthera said, if we'd enable it would create really weird artefacts.