Version: 4.3.2 (using KDE 4.5.5) OS: Linux Dear Devs: Lately I found the blur effect it isn't activated from the very moment I click Kickoff or for instance the Notification icon or any other tool that uses transparency. Usually the blurring happens after half-to-one second after the transparent region is shown, are you aware of this? This is a normal behaviour (i.e. 'it's not a bug, it's a feature!', etc.)? In the last case, shouldn't blur effect be instant? Thank you very much for your generous work and time, I really enjoy using KDE SC =) Reproducible: Always Steps to Reproduce: Activate any transparency system tool from the tray bar, the Kickoff or any other application which uses transparency. Actual Results: Blur effect will be 1 second (or so) late. Expected Results: It should be instant, I mean the user should not see the change. OS: KDE SC 4.5.5.1 on Parabola GNU/Linux (Arch Linux %100 Libre) CPU: QuadCore 8400 2.66mhz, 4gb RAM Video: ATI RADEON HD 5750 1 gb using Catalyst 10.10 (privative module)
blurring is not enabled during window transforming effects (like probably the slide-in effect of the kickoff menu) for causing visual glitches* and performance reasons - is this what you mean? *the blur filter can under some circumstances not predict where or how the window appears.
Hi Thomas, thank you for replying so fast. I really didn't know how Transparency effect works but based on your explanation I see that it isn't a bug, is the way it's designed. Anyways, it would be awesome if you can find a way to make this blur effect smoother, sadly I don't have any C/Qt skills so I can't help you on this one =( Once again, thank you all for your great work in KDE SC! Wish you an _awesome_ 2011. (I close this report with a RESOLVED / WONTFIX but please change the status as you see it fit)
*** Bug 262663 has been marked as a duplicate of this bug. ***
*** Bug 264726 has been marked as a duplicate of this bug. ***
I do not know whether I should comment it here or not, but as my bug report 264726 (https://bugs.kde.org/show_bug.cgi?id=264726) was issued a closed status and duplicate of this bug. I would just like to know whether compiz like behaviour is completely impossible to achieve with kwin or Kwin simply does not try to make it smooth by nature?
Hi devs, people: After further research I found this specially annoying bug is triggered when some special KWin's effects are enabled; so far I found "Wabby windows" (Ventanas gelatinosas) and "Scale out" will make Kickoff's transparency (as well as other system transparent dialogs) specially unreliable. Cheers.
see comment #1 the current blur effect relies on a list of "to-be-blurred" rects assigned to the window to not waste time on blurring obscured regions - it won't blur anything else. When to window shape or position is transformed w/o the blur filter knowing about, it cannot re-transform the "to-be-blurred" region with it, so currently this is not possible. We'll likely have to move the blur effect into the render core so it knows about those transformations what /might/ happen alongside other changes on the renderstack for 4.7.
Any chance this might be worth revisiting with the new (much faster) blur?
Several effects already gained support for blur.