https://bugs.kde.org/show_bug.cgi?id=363487
--- Comment #19 from William Kensinger <[email protected]> --- (In reply to Robert Showalter from comment #18) > Thank you for checking Boudewijn. I did more tests and discovered it > happens for some brushes, but not others. I suspect it's the brush spacing > that reveals the bottleneck. When using the circle brush presets for > example, a standard one like "Fill_circle" does not have discernible lag > when 5 layers deep (a paint layer within 4 nested groups, that is). However, > when I use another present like "ink_circle_10" the lag is significant when > nested in groups, but non-existent outside of them. One of the main > differences between the two is that the first one has spacing set to auto > and the second's spacing is <1. > > Come to think of it, when I first noticed the problem I was using David > Revoy's 8.1 brush presets > (http://www.davidrevoy.com/article319/krita-brushkit-v8), many of which have > brush spacing <1. Sure enough, when I set spacing to "auto" for > "ink_circle_10," indeed the lag goes away (unfortunately, this alters the > look for many brushes). > > This whole thing wouldn't be a problem, except that so many standard brushes > have tight spacing and will not work well when nested. That is, if you can > reproduce it with the same brush and it's not something with my setup. I'd > be curious to know. I went a head and recorded my screen to show the problem > (forgive me for using my phone, I wanted to be sure there's no question > about screen recording taxing the system). > https://drive.google.com/open?id=0BxKOKqLVyGC-QUR2OWZtVXp3RGs > > As you can see in the video, I'm using the circle brush preset, > "ink_circle_10." It's a simple setup as I mentioned before; A 2k square > image with 4 nested groups containing a paint layer, and one un-nested paint > layer for comparison. Here's the file for safe measure: > https://drive.google.com/open?id=0BxKOKqLVyGC-eXQwZGJ4Um44TEU Just dropping in to confirm that the bug is still happening for me under windows as of 3.1.2. I can vouch for Robert here, spacing does decrease the lag significantly for me, though it doesn't eliminate it completely. Also, I feel like this shouldn't be marked as resolved, as it's clearly still happening. Should I change the label there? -- You are receiving this mail because: You are watching all bug changes.
