When using Magic Lamp minimize effect the Blur effect disappears during the animation in Konsole. How to reproduce bug: 1. Enable Magic Lamp minimize effect 2. Enable Blur desktop effect 3. Use Breeze with Blur option 4. Open Konsole 5. Minimize Konsole What happens: Blur goes away. What should happen: Blur should stay while the Magic Lamp minimize animation plays.
Technically, that's not possible. The blur effect operates on rectangular region, while the Magic lamp effect transforms windows. Sorry, I mark it as WONTFIX.
Okay, maybe, it's possible to blur background behind transformed windows. I think the stencil test would be useful in this case.
Well, no, it's not possible. * Windows have to specify what region KWin has to blur (e.g. blur behind a sidebar, etc); * If a window has been transformed, KWin has somehow to transform the region too; * ... and here lies the root of the problem: effects are free to add and remove windows quads, rotate them, etc. So, given the list of window quads, the Blur effect can't figure out what transformation has been apply to them.