https://bugs.kde.org/show_bug.cgi?id=440169
--- Comment #2 from Michał Staruch <michal.star...@gmail.com> --- (In reply to Dmitry Kazakov from comment #1) > Hi, Michal! > > What drawing tablet do you use for this test? Just a mouse - I was simply comparing responsiveness and smoothness of a few painting applications using simple 1px hard pencil and no stabilizer. Scratchpad in Krita works fine, but main canvas is... well, OK for a chess player, but completely unable to handle techniques like scribble drawing - for that you need to work in real-time, so it could feel like a real pencil. Rendering graphics on canvas might be done at monitor refresh rate (usually 60-144 Hz, also depends on v-sync, tripple buffering, etc.), but processing input events should be done independently, at input device rate (typically 500-1000 Hz, for a standard mouse) and absolutely NOT dropped - that dropped intermediate mouse positions are probably root cause of shapes turning into squares, instead of being nicely curved. It's just a wild guess from this side, but... maybe in case of painting on canvas rendering / v-sync interferes somehow with processing input events? -- You are receiving this mail because: You are watching all bug changes.
