| Summary: | Glide effect is distorted | ||
|---|---|---|---|
| Product: | [Plasma] kwin | Reporter: | Hesam Gholami <hesamgholami> |
| Component: | effects-various | Assignee: | KWin default assignee <kwin-bugs-null> |
| Status: | RESOLVED FIXED | ||
| Severity: | normal | CC: | cwo.kde, kde, nate |
| Priority: | NOR | Keywords: | regression |
| Version: | 6.1.0 | ||
| Target Milestone: | --- | ||
| Platform: | Arch Linux | ||
| OS: | Linux | ||
| Latest Commit: | https://invent.kde.org/plasma/kwin/-/commit/24c9ed3bde8a7830e43a2527d05e9099e5e138bd | Version Fixed In: | 6.1.1 |
| Sentry Crash Report: | |||
| Attachments: |
Preview of Glide distortion
Glide effect working correctly on Plasma 6.0.4 |
||
It looks like you've changed the settings of this effect. Does the issue go away if you restore them to their default values? (In reply to Nate Graham from comment #1) > It looks like you've changed the settings of this effect. Does the issue go > away if you restore them to their default values? No. If I restore default settings, the issue will remain the same. But because it happens fast, it's hard to see. So I've changed settings to demonstrate the issue better. Created attachment 170717 [details]
Glide effect working correctly on Plasma 6.0.4
This preview is for KDE Plasma 6.0.4 where the Glide effect works correctly without any distortion at bottom center section
I've added a new attachment in which you can see the same effect with the same settings works correctly (without any distortion at bottom center) in KDE Plasma 6.0.4 A possibly relevant merge request was started @ https://invent.kde.org/plasma/kwin/-/merge_requests/5956 Git commit 7eb9f75af22c4aeeb58e864772912ec060f79826 by Vlad Zahorodnii. Committed on 21/06/2024 at 12:46. Pushed by vladz into branch 'master'. plugins/glide: Subdivide window quad grid The way the glide effect works is that it takes 2D geometry and applies the perspective projection to it on the CPU side. The reason we do it is that the scene is 2D. However, this leaves us with the well known problem where a texture that's mapped to a trapezoid won't be correctly interpolated along the diagonal. It can addressed by performing a perspective division in the fragment shader, but given the way the effect is structured, it's off the table. So instead subdivide the window grid. M +1 -0 src/plugins/glide/glide.cpp https://invent.kde.org/plasma/kwin/-/commit/7eb9f75af22c4aeeb58e864772912ec060f79826 Git commit 24c9ed3bde8a7830e43a2527d05e9099e5e138bd by Vlad Zahorodnii. Committed on 21/06/2024 at 13:05. Pushed by vladz into branch 'Plasma/6.1'. plugins/glide: Subdivide window quad grid The way the glide effect works is that it takes 2D geometry and applies the perspective projection to it on the CPU side. The reason we do it is that the scene is 2D. However, this leaves us with the well known problem where a texture that's mapped to a trapezoid won't be correctly interpolated along the diagonal. It can addressed by performing a perspective division in the fragment shader, but given the way the effect is structured, it's off the table. So instead subdivide the window grid. (cherry picked from commit 7eb9f75af22c4aeeb58e864772912ec060f79826) Co-authored-by: Vlad Zahorodnii <vlad.zahorodnii@kde.org> M +1 -0 src/plugins/glide/glide.cpp https://invent.kde.org/plasma/kwin/-/commit/24c9ed3bde8a7830e43a2527d05e9099e5e138bd |
Created attachment 170712 [details] Preview of Glide distortion SUMMARY After upgrading to Plasma 6.1.0, the Glide effect is now distorted in bottom center section. Sorry if the video is laggy, I think this is also another bug in new version of Spectacle video recorder with NVIDIA gpu. STEPS TO REPRODUCE 1. Open up Desktop Effects 2. Choose Glide settings 3. Increase duration, angle and distance 4. Save and apply 5. Open up any application 6. Look at the bottom center of windows OBSERVED RESULT Windows are distorted while opening/closing like the attached video. EXPECTED RESULT No distortion on open/close animation SOFTWARE/OS VERSIONS Operating System: Arch Linux KDE Plasma Version: 6.1.0 KDE Frameworks Version: 6.3.0 Qt Version: 6.7.1 Kernel Version: 6.9.5-arch1-1 (64-bit) Graphics Platform: Wayland Processors: 20 × Intel® Core™ i9-10900 CPU @ 2.80GHz Memory: 62.6 GiB of RAM Graphics Processor: NVIDIA GeForce GTX 1650/PCIe/SSE2 Manufacturer: ASUS ADDITIONAL INFORMATION N/A