Shadows being clipped on some windows

[ErikReider]

Happens with Discords small starting window (the one that downloads updates etc) and swappy (screenshot editing GUI). This only occurs on my left 1080p monitor for some reason and not my 1440p monitor

[RicArch97]

Similar issue here:

Details:

• Only happens on my right monitor
• Happens when the width of the widow exceeds a certain boundary
• Happens on all types of applications (not just GTK)

Short video:

https://user-images.githubusercontent.com/61013287/232263800-8b51a0ae-aab2-441b-ba84-886dd69687a6.mp4

Output of swaymsg -t get_outputs:

Output DP-1 'LG Electronics LG ULTRAGEAR 103NTDV9C874' (focused)
  Current mode: 3440x1440 @ 160.000 Hz
  Position: 2560,0
  Scale factor: 1.000000
  Scale filter: nearest
  Subpixel hinting: unknown
  Transform: normal
  Workspace: 1
  Max render time: 2 ms
  Adaptive sync: enabled
  Available modes:
    3440x1440 @ 143.923 Hz
    3440x1440 @ 60.001 Hz
    3440x1440 @ 160.000 Hz
    ...

Output DP-2 'LG Electronics LG ULTRAGEAR 206MARZAD334'
  Current mode: 2560x1440 @ 164.958 Hz
  Position: 0,0
  Scale factor: 1.000000
  Scale filter: nearest
  Subpixel hinting: unknown
  Transform: normal
  Workspace: 11
  Max render time: 2 ms
  Adaptive sync: enabled
  Available modes:
    2560x1440 @ 164.958 Hz
    2560x1440 @ 143.973 Hz
    2560x1440 @ 119.998 Hz
    ...

[WillPower3309]

Important to note that they're clipped right after the corners of rounded windows. We should test if this is present with corner_radius set to 0

[ErikReider]

Important to note that they're clipped right after the corners of rounded windows. We should test if this is present with corner_radius set to 0

Yeah, still an issue. One consistent applications that shows this is Sequeler with it's properties window open:

[WillPower3309]

Looks like it doesn't bend around the corner though, so a bit of different behavior there at least

[WillPower3309]

Hmm for @RicArch97 it appears like it happens when part of the window overlaps onto his other monitor. Also seems to be floating windows only for both of you?

[RicArch97]

Hmm for @RicArch97 it appears like it happens when part of the window overlaps onto his other monitor. Also seems to be floating windows only for both of you?

Not necessarily, it also happens when the window doesn't overlap into my other monitor. It's also not just floating windows, happens on tiling onces as well. Captured some data from swaymsg -t get_tree | jq for a window right after it exceeds the width where it starts happening;

"rect": {
  "x": 2966,
  "y": 241,
  "width": 2561,
  "height": 1006
 },
"deco_rect": {
  "x": 321,
  "y": 195,
  "width": 2561,
  "height": 31
},
"window_rect": {
  "x": 1,
  "y": 0,
  "width": 2559,
  "height": 1005
},
"geometry": {
  "x": 0,
  "y": 0,
  "width": 800,
  "height": 600
},