Post #806649

2026-03-16 11:27 UTC

Shoutout to FreeCAD having silly rendering issues around transparency. That's literally my desktop wallpaper (default wallpaper in recent version of kde/plasma) shining through the window. edit: this might be a kde bug, see https://critter.cafe/@irina/116238645215664128 :blobcatjoy: edit2: and to make myself clear: this is not intended as criticism of either freecad or kde/plasma. it brought me some joy, especially in this particular instance edit3: the issue seems to go away entirely if I disable wobbly windows in desktop effects in kde #Freecad #kde

Replies (11)

@jernej__s@infosec.exchange 2026-03-16 11:30

@ar@is-a.cat Sounds like a feature.

Open ##1112691
@ar@is-a.cat 2026-03-16 18:55

So I just noticed another silly thing about this whole screenshot stuff. If you look closely, you'll notice that the screenshot has an alpha layer. WTAF. (your instance may have re-encoded this picture lossily)

Open ##2441350
@natty@astolfo.social 2026-03-16 11:28

@ar@is-a.cat How is it overwriting the background instead of compositing over it :neofox_woozy:

Open ##2441353
@irina@critter.cafe 2026-03-16 11:36

@ar@is-a.cat krita does the same thing if you have semitransparent pixels

Open ##2441361
@pl@mastodon.social 2026-03-16 11:38

@ar@is-a.cat https://github.com/FreeCAD/FreeCAD/issues/6177 It's so sad that somehow FreeCAD has both super enthusiastic user base, but at the same time such basic bugs that can't be resolved in over four years. I personally gave up trying to learn or use FreeCAD, the transparency issues and the to me pretty confusing module system ultimately pushed me to OnShape instead.

Open ##2441362
@domi@donotsta.re 2026-03-16 11:39

@ar@is-a.cat do you remember when video playback acceleration on windows bound to color 0x00FF00 and replaced all green pixels through some funny hw accel? this feels tangentically similar

Open ##2441366
@la@chaos.social 2026-03-16 12:05

@ar@is-a.cat I've had this happen on sway as well... one of the funnier bugs for sure

Open ##2441368
@naln1@ak.angelstrapped.com 2026-03-16 12:56

@ar@is-a.cat lol lmao

Open ##2441371
@foxes@bark.lgbt 2026-03-16 14:22

@ar@is-a.cat The next step in transparency would be seeing the wall behind your monitor. Maximum immersion

Open ##2441372
@spitfire@mastodon.social 2026-03-16 15:28

@ar@is-a.cat it’s a feature

Open ##2441373
@gforce917@floofy.tech 2026-03-16 20:27

@ar@is-a.cat this feels like a puzzle in a game where you're inside the computer. like, you're in the CAD program and you need to get to the desktop, so you go file -> open -> window.whatever and then open the window and climb through

Open ##2441377