Tiny corner bug (kcorner bug?) on the bottom edges

[levy-deng]

When the blur effect is enabled, there is a tiny corner bug on the bottom of the screen. I'm unsure why that's the case, but it seems like the kcorners bug from all the way back.

[matinlotfali]

I confirm that I sometimes see that on a terminal with blurred background. I don't know how to fix this. I will be needing some assistance to figure it out.

[levy-deng]

let me look into how the kcorners bug fix worked, but from what I've read from various sources and an educated guess, it is due to the blur affect still interpreting the window size prior to applying the shader.

[levy-deng]

One detail to note: There is no bug if you use this shader with the breeze theme.

[matinlotfali]

Can you post a screenshot?

[RomanKode]

Apparently the "Korner Bug" fix was either removed or broken in new Plasma versions, there was a merge request for an API to add the feature and that feature would had also addressed the lack of blur on morphing windows(Magic lamp and Woobly) but in the end nothing happened, I would suggest to bring that up to the KDE devs and see if there could be a possible solution. So far the only solution I can see is if it's implemented at the Application Style level(Fork breeze, Lightly or even Klassy) and implement it there. The Korner bug is "fixed" at the Decoration Style level but not at the Application Style level.

[RomanKode]

I know it would add complexities to the code, but probably this can help. What if it were possible to become the blur plugin and control its radius from the same plugin that controls the borders?

https://github.com/Alban-Boissard/kwin-effects-blur-respect-rounded-decorations

[levy-deng]

One more thing to note: if selected no borders on a custom theme the corners go away. I think this might have something to do with the blur shader and borders somehow?

[matinlotfali]

@levy-deng I am applying the rounding shader on all windows with plasma decoration. If a window comes with no decoration, you can add the window to the inclusion list in settings. The feature is added recently in the master branch.

[matinlotfali]

Is this issue resolved in the latest releases? @levy-deng @RomanKode

[levy-deng]

Yep! Issue is resolved. need to have the border rule set to no borders.On Jan 22, 2024, at 9:54 AM, Matin Lotfaliei @.***> wrote: Is this issue resolved in the latest releases? @levy-deng @RomanKode

—Reply to this email directly, view it on GitHub, or unsubscribe.You are receiving this because you were mentioned.Message ID: @.***>

[RomanKode]

Is this issue resolved in the latest releases? @levy-deng @RomanKode

No and it may never will, unless KDE Devs add a Kwin API to do so.

the Shadows(if they are big enough) can hide the Korner bug pretty well.

[RomanKode]

Still has the Korner Bug, just that shadows hide it and this a recently compiled version of this effect.

This is what the dev of Lightlyshaders is doing for his Plasma 6 release of the effect. https://github.com/a-parhom/LightlyShaders#plasma-6 Basically forking his own Blur effect to be included.

[queenbiscuit311]

just thought i should heads up, on plasma 6 if you install the lightlyshaders plasma 6 branch, use the lightly shaders blur, disable the normal blur, and then enable this extension the korners bug is fixed. at least it would appear to be.

here's an example i made by putting text on the corners to make it obvious compared to using normal blur

[matinlotfali]

@queenbiscuit311 It should be similar in KDE-Rounded-Corners

[KainNhantumbo]

I just wanted to point that this corner bug appears on blurred windows like terminal in plasma 6, before applying this effect.

[RomanKode]

Checkout Queenbiscuit's comments, it works if you use lightlyshaders blur plugin