Three square beams that only join up from one exact viewpoint. The camera rocks either side of it, so the triangle closes, breaks open and closes again.
Three square beams that only join up from one exact viewpoint. The camera rocks either side of it, so the triangle closes, breaks open and closes again.
In the app you can adjust the rocking, speed and colours. It runs natively on your Mac, drawn live in real time – no video, never quite the same twice.
Use it on your Mac
- Get SCRNSVRS free from the Mac App Store.
- Select Impossible Triangle in the library.
- Click Set as Screensaver or Set as Wallpaper – or both.
Preview free · macOS Tahoe 26 or laterNeed a hand? Read the setup guide.
Impossible Triangle FAQ
How do I set Impossible Triangle as my screensaver on a Mac?
Install SCRNSVRS free from the Mac App Store, select Impossible Triangle in the library and click Set as Screensaver. macOS starts it whenever your Mac is idle, exactly like a built-in screensaver.
Can I use Impossible Triangle as a live wallpaper?
Yes. Click Set as Wallpaper in SCRNSVRS and Impossible Triangle plays on your desktop behind your windows and icons. You can use it as screensaver and wallpaper at the same time.
Is Impossible Triangle free?
Impossible Triangle is included in SCRNSVRS Unlimited. It's free for your first 7 days; after that Unlimited is $1.99/month or $9.99/year (€1.99/month or €9.99/year) for every screensaver, including new ones. It can also come up in Free this month, when 25 premium screensavers are free for everyone.
Is Impossible Triangle a video loop?
No. Impossible Triangle is rendered live on your Mac with Metal, so it never repeats and stays sharp on any display size. The clip on this page is a screen recording of the real thing.
Will Impossible Triangle slow down my Mac or drain the battery?
No. SCRNSVRS drops to 30 fps on battery and stops rendering when the wallpaper is covered by a full-screen app, so Impossible Triangle costs next to nothing in everyday use.
Which Macs does Impossible Triangle run on?
Impossible Triangle needs macOS Tahoe 26 or later.
