[kwin] [Bug 455450] Slide desktop animation is slower in 5.25, especially compared to other animations
https://bugs.kde.org/show_bug.cgi?id=455450 bastimeyer...@gmail.com changed: What|Removed |Added CC||bastimeyer...@gmail.com --- Comment #26 from bastimeyer...@gmail.com --- Btw, even though the springConstant value has recently been changed, there's still a massive difference in animation time when switching activities, which also uses the slide animation (or a different implementation, IDK). This seems to depend on whether your other activity is on the same virtual desktop, so you have to enable the setting for having independent virtual desktops for each activity first. I've patched the springConstant to 500.0 and dampingRatio to 1.05 respectively in order to make the different animation speeds somewhat align, with the downside of being a bit too fast. -- You are receiving this mail because: You are watching all bug changes.
[kwin] [Bug 455450] Slide desktop animation is slower in 5.25, especially compared to other animations
https://bugs.kde.org/show_bug.cgi?id=455450 July Tikhonov changed: What|Removed |Added CC||july.t...@gmail.com --- Comment #25 from July Tikhonov --- The problem is not only in the speed itself, but in the uneven pacing of the animation. This is a direct consequence of the mass-spring-damper model: the motion starts off parabolically (with near-constant acceleration), but slows down exponentially (with acceleration and speed proportional to remaining distance). Therefore, the animation will always be either too fast at the beginning, or too slow at the end. For all my love of physics, I would suggest dump the spring-damper model. Sometimes the most elegant solution is not good enough. (Personally, I have patched the SpringMotion class to output a Bezier curve instead.) -- You are receiving this mail because: You are watching all bug changes.
[kwin] [Bug 455450] Slide desktop animation is slower in 5.25, especially compared to other animations
https://bugs.kde.org/show_bug.cgi?id=455450 Nate Graham changed: What|Removed |Added Version Fixed In||5.26 -- You are receiving this mail because: You are watching all bug changes.
[kwin] [Bug 455450] Slide desktop animation is slower in 5.25, especially compared to other animations
https://bugs.kde.org/show_bug.cgi?id=455450 Vlad Zahorodnii changed: What|Removed |Added Latest Commit|https://invent.kde.org/plas |https://invent.kde.org/plas |ma/kwin/commit/4c07daec3f7d |ma/kwin/commit/5b97cd02ec10 |16c58cf039164e706dd0363b255 |a87dedb9038abcad438129995e5 |7 |4 --- Comment #24 from Vlad Zahorodnii --- Git commit 5b97cd02ec10a87dedb9038abcad438129995e54 by Vlad Zahorodnii. Committed on 28/09/2022 at 15:41. Pushed by vladz into branch 'Plasma/5.26'. effects/slide: Increase spring constant We've got complaints that the animation is too slow. (cherry picked from commit 4c07daec3f7d16c58cf039164e706dd0363b2557) M +1-1src/effects/slide/slide.cpp https://invent.kde.org/plasma/kwin/commit/5b97cd02ec10a87dedb9038abcad438129995e54 -- You are receiving this mail because: You are watching all bug changes.
[kwin] [Bug 455450] Slide desktop animation is slower in 5.25, especially compared to other animations
https://bugs.kde.org/show_bug.cgi?id=455450 Vlad Zahorodnii changed: What|Removed |Added Status|ASSIGNED|RESOLVED Resolution|--- |FIXED Latest Commit||https://invent.kde.org/plas ||ma/kwin/commit/4c07daec3f7d ||16c58cf039164e706dd0363b255 ||7 --- Comment #23 from Vlad Zahorodnii --- Git commit 4c07daec3f7d16c58cf039164e706dd0363b2557 by Vlad Zahorodnii. Committed on 28/09/2022 at 15:41. Pushed by vladz into branch 'master'. effects/slide: Increase spring constant We've got complaints that the animation is too slow. M +1-1src/effects/slide/slide.cpp https://invent.kde.org/plasma/kwin/commit/4c07daec3f7d16c58cf039164e706dd0363b2557 -- You are receiving this mail because: You are watching all bug changes.
[kwin] [Bug 455450] Slide desktop animation is slower in 5.25, especially compared to other animations
https://bugs.kde.org/show_bug.cgi?id=455450 --- Comment #22 from Prajna Sariputra --- I just tested changing that parameter to 250, 300 and 500, here's what I feel regarding these options: 500: Way too fast compared to the other animations, and yet simultaneously it also feels like how it was in 5.24 and before. I think this is because the new animation mechanism makes the ending in particular relatively glacial, while other animations either have a constant speed or even speed up towards the end, and it is the ending that I would notice the most because that is when I end up waiting for the animation to finish before moving on. So, with the new animation mechanism the top speed ends up having to be higher in order for the overall speed to match the old one, which was more constant speed wise. 250: Not a big change, doesn't quite nail it for me still but it is certainly an improvement over the current setting of 200. 300: This feels good to me, noticeably faster over the current setting of 200 and yet not super fast like 500. One metric that this option meets for me that the slower options don't is how long it feels like things are still moving around/not yet settled once my finger stops touching the keyboard (this I think is what led me to post this bug report in the first place, although I did not realise exactly what it was back then). To put it another way, starting from the global animation speed setting which I find comfortable for the other animations I have to bring it up two notches to make the slide effect work nicely with 200, while with 250 I only need to raise the global speed one notch, and finally with 300 is where I don't feel any urge to tweak it any more. In short, I think if that parameter was set to 300 when 5.25 came out I probably wouldn't have noticed much of a difference, certainly wouldn't have bothered to create a bug report about it. Still, I can certainly make do with 250, while it still means I have to raise the global animation speed one notch above the ideal point that's better than two (which makes other animations blindingly fast), and I highly appreciate that the change has been made in response to our feedback, so thanks so much! -- You are receiving this mail because: You are watching all bug changes.
[kwin] [Bug 455450] Slide desktop animation is slower in 5.25, especially compared to other animations
https://bugs.kde.org/show_bug.cgi?id=455450 --- Comment #21 from Vlad Zahorodnii --- The spring animation has no well defined duration, its duration is dependent on how much the slide effect needs to slide. Sometimes it can be quicker, sometimes it can be longer. I think the best way to move forward is to gradually tweak the spring parameters until enough people are pleased with it. -- You are receiving this mail because: You are watching all bug changes.
[kwin] [Bug 455450] Slide desktop animation is slower in 5.25, especially compared to other animations
https://bugs.kde.org/show_bug.cgi?id=455450 --- Comment #20 from Evgeny --- The problem here is not just that the slide animation is slow. The main problem is that its time is not aligned with other animations, so it's impossible to configure it with global animations speed setting. I believe it should be somewhere around 400 to be close to the speed of other animations. -- You are receiving this mail because: You are watching all bug changes.
[kwin] [Bug 455450] Slide desktop animation is slower in 5.25, especially compared to other animations
https://bugs.kde.org/show_bug.cgi?id=455450 --- Comment #19 from Vlad Zahorodnii --- 500 is too high for me personally -- You are receiving this mail because: You are watching all bug changes.
[kwin] [Bug 455450] Slide desktop animation is slower in 5.25, especially compared to other animations
https://bugs.kde.org/show_bug.cgi?id=455450 --- Comment #18 from Evgeny --- (In reply to Bug Janitor Service from comment #17) > A possibly relevant merge request was started @ > https://invent.kde.org/plasma/kwin/-/merge_requests/3009 Well, for myself I increased it to 500 :) I have a feeling that increasing to 250 won't make a big difference, probably those who created issues can comment as well. -- You are receiving this mail because: You are watching all bug changes.
[kwin] [Bug 455450] Slide desktop animation is slower in 5.25, especially compared to other animations
https://bugs.kde.org/show_bug.cgi?id=455450 Bug Janitor Service changed: What|Removed |Added Status|CONFIRMED |ASSIGNED --- Comment #17 from Bug Janitor Service --- A possibly relevant merge request was started @ https://invent.kde.org/plasma/kwin/-/merge_requests/3009 -- You are receiving this mail because: You are watching all bug changes.
[kwin] [Bug 455450] Slide desktop animation is slower in 5.25, especially compared to other animations
https://bugs.kde.org/show_bug.cgi?id=455450 deadite66 changed: What|Removed |Added CC||lee295...@gmail.com -- You are receiving this mail because: You are watching all bug changes.
[kwin] [Bug 455450] Slide desktop animation is slower in 5.25, especially compared to other animations
https://bugs.kde.org/show_bug.cgi?id=455450 Nate Graham changed: What|Removed |Added Ever confirmed|0 |1 Status|REPORTED|CONFIRMED -- You are receiving this mail because: You are watching all bug changes.
[kwin] [Bug 455450] Slide desktop animation is slower in 5.25, especially compared to other animations
https://bugs.kde.org/show_bug.cgi?id=455450 Nate Graham changed: What|Removed |Added Keywords||regression, usability Resolution|INTENTIONAL |--- Status|RESOLVED|REPORTED --- Comment #16 from Nate Graham --- We keep getting bug reports about this; it's clear that users aren't happy about the slower effective speed of the Slide effect in 5.25 and later. Re-opening. -- You are receiving this mail because: You are watching all bug changes.
[kwin] [Bug 455450] Slide desktop animation is slower in 5.25, especially compared to other animations
https://bugs.kde.org/show_bug.cgi?id=455450 Nate Graham changed: What|Removed |Added CC||ppeli...@gmail.com --- Comment #15 from Nate Graham --- *** Bug 459357 has been marked as a duplicate of this bug. *** -- You are receiving this mail because: You are watching all bug changes.
[kwin] [Bug 455450] Slide desktop animation is slower in 5.25, especially compared to other animations
https://bugs.kde.org/show_bug.cgi?id=455450 --- Comment #14 from Nate Graham --- Feel free to submit that upstream. The last "change the speed" patch that was submitted got merged. -- You are receiving this mail because: You are watching all bug changes.
[kwin] [Bug 455450] Slide desktop animation is slower in 5.25, especially compared to other animations
https://bugs.kde.org/show_bug.cgi?id=455450 --- Comment #13 from Evgeny --- I created one more duplicate of this issue, sorry for that. I ended up patching kwin to make slide faster, here how it can be done in nix in case somebody is interested: https://github.com/kurnevsky/nixfiles/commit/c77a7662428cfa988a624f9db0e442669242fb93 -- You are receiving this mail because: You are watching all bug changes.
[kwin] [Bug 455450] Slide desktop animation is slower in 5.25, especially compared to other animations
https://bugs.kde.org/show_bug.cgi?id=455450 Nate Graham changed: What|Removed |Added CC||kurnev...@gmail.com --- Comment #12 from Nate Graham --- *** Bug 457875 has been marked as a duplicate of this bug. *** -- You are receiving this mail because: You are watching all bug changes.
[kwin] [Bug 455450] Slide desktop animation is slower in 5.25, especially compared to other animations
https://bugs.kde.org/show_bug.cgi?id=455450 --- Comment #11 from Prajna Sariputra --- I suspect another possible issue with trying to make the animation speed consistent with the other effects is that it might not be possible (or at least straightforward) to make it do so at all possible global animation speed settings, I remember dropping the global animation speed to the minimum and timing how long the effects took when I was about to file this bug report, and some of the other effects I tested seem about as slow (if not slower) than the slide effect, unlike on the normal animation speed I use. -- You are receiving this mail because: You are watching all bug changes.
[kwin] [Bug 455450] Slide desktop animation is slower in 5.25, especially compared to other animations
https://bugs.kde.org/show_bug.cgi?id=455450 --- Comment #10 from guimarcalsi...@gmail.com --- >At the default global animation speed, on a 60hz screen, it took on average 50 >frames for the slide animation to complete, while the overview took on average >15 frames and opening Kickoff took around 8 frames. The new effect has an >animation factor which is too big compared to most of the other effects. It >should probably take the same amount of time to complete as the overview >effect, which is also a fullscreen effect. Making the speed consistent with >other full screen effects should improve user complaints and let devs avoid >adding redundant per-effect speed settings to work around the issue. This is part of the description of the duplicate bug. In this case, I believe the values for the spring physics model could be tweaked to make the animation speed consistent with the overview effect (which is also a fullscreen effect). I believe the problem here is that the values chosen make the animation visibly slower compared to everything else when not using touch, and the user has to speed up the global animation scale to make the slide effect have a reasonable speed, which in turn makes the other animations almost instantaneous. I do agree though that it's not ideal to expose those values to users. Making users fix the problem manually is never ideal. If trying to match the animation speed to the overview effect makes the simulation feel bad when using a touch screen, would it be possible to detect when the movement is started from a drag or from a click and use different settings? -- You are receiving this mail because: You are watching all bug changes.
[kwin] [Bug 455450] Slide desktop animation is slower in 5.25, especially compared to other animations
https://bugs.kde.org/show_bug.cgi?id=455450 --- Comment #9 from guimarcalsi...@gmail.com --- Sorry. I had just filled a bug report about this after the discussion in bug 450268, but I realized it was a duplicate of this one. I believe this should be reopened and the default values for the spring physics model should be adjusted to match the global animation speed setting. More details can be seen on the bug I closed as a duplicate. -- You are receiving this mail because: You are watching all bug changes.
[kwin] [Bug 455450] Slide desktop animation is slower in 5.25, especially compared to other animations
https://bugs.kde.org/show_bug.cgi?id=455450 guimarcalsi...@gmail.com changed: What|Removed |Added CC||guimarcalsi...@gmail.com --- Comment #8 from guimarcalsi...@gmail.com --- *** Bug 456218 has been marked as a duplicate of this bug. *** -- You are receiving this mail because: You are watching all bug changes.
[kwin] [Bug 455450] Slide desktop animation is slower in 5.25, especially compared to other animations
https://bugs.kde.org/show_bug.cgi?id=455450 --- Comment #7 from Andrei Rybak --- > I'm really not a fan of allowing this level of configurability. We should > aspire to make it feel good by default (which it already does IMO) and make > sure it follows the global animation speed slider (which it already does). > Anything beyond that seems like extreme over-configurability to me. Oh no. I have global animations two notches faster than the default, and the virtual desktop slide animation is still way too slow in 5.25.1 (https://bugs.kde.org/show_bug.cgi?id=456070). And now I have to force all other animations to be unnecessarily fast if I don't want to wait through the slow as molasses virtual desktop slide animation. Sounds like this part of KDE isn't "powerful when needed" anymore. https://kde.org/announcements/plasma/5/5.10.0/ This is very sad to hear. -- You are receiving this mail because: You are watching all bug changes.
[kwin] [Bug 455450] Slide desktop animation is slower in 5.25, especially compared to other animations
https://bugs.kde.org/show_bug.cgi?id=455450 Vlad Zahorodnii changed: What|Removed |Added CC||rybak@gmail.com --- Comment #6 from Vlad Zahorodnii --- *** Bug 456070 has been marked as a duplicate of this bug. *** -- You are receiving this mail because: You are watching all bug changes.
[kwin] [Bug 455450] Slide desktop animation is slower in 5.25, especially compared to other animations
https://bugs.kde.org/show_bug.cgi?id=455450 Nate Graham changed: What|Removed |Added Status|REPORTED|RESOLVED Resolution|--- |INTENTIONAL --- Comment #5 from Nate Graham --- Hehe -- You are receiving this mail because: You are watching all bug changes.
[kwin] [Bug 455450] Slide desktop animation is slower in 5.25, especially compared to other animations
https://bugs.kde.org/show_bug.cgi?id=455450 --- Comment #4 from Prajna Sariputra --- Fair enough, so I guess this counts as intentional as part of adding support for the one to one animation (feel free to mark it so if that's the case). Fortunately after about a day it doesn't feel anywhere near as annoying as it did right after the upgrade, and I haven't seen anyone else mention it so it's probably just me then lol. -- You are receiving this mail because: You are watching all bug changes.
[kwin] [Bug 455450] Slide desktop animation is slower in 5.25, especially compared to other animations
https://bugs.kde.org/show_bug.cgi?id=455450 Nate Graham changed: What|Removed |Added CC||n...@kde.org --- Comment #3 from Nate Graham --- I'm really not a fan of allowing this level of configurability. We should aspire to make it feel good by default (which it already does IMO) and make sure it follows the global animation speed slider (which it already does). Anything beyond that seems like extreme over-configurability to me. -- You are receiving this mail because: You are watching all bug changes.
[kwin] [Bug 455450] Slide desktop animation is slower in 5.25, especially compared to other animations
https://bugs.kde.org/show_bug.cgi?id=455450 --- Comment #2 from Prajna Sariputra --- (In reply to Vlad Zahorodnii from comment #1) > We can expose spring parameters, but arguably, such level configurability > would be too advanced and people will struggle with it. Looking through the KWin effects I have installed I noticed that the Wobbly Windows effect exposes its advanced parameters (stiffness, drag and move factor), so would the spring parameters be any more complicated than those? -- You are receiving this mail because: You are watching all bug changes.
[kwin] [Bug 455450] Slide desktop animation is slower in 5.25, especially compared to other animations
https://bugs.kde.org/show_bug.cgi?id=455450 --- Comment #1 from Vlad Zahorodnii --- We changed the mechanics of the slide animation in 5.25. In 5.24 and before, we used to use an easing curve. In 5.25, the slide effect uses a spring physics model for animation. We made that change in order to make the animation when pulling fingers from touchpad look good. We can expose spring parameters, but arguably, such level configurability would be too advanced and people will struggle with it. -- You are receiving this mail because: You are watching all bug changes.
