Billiard Orbits — a live screensaver and wallpaper for your Mac.

Real-time · Mathematics · PremiumFree this month

A point of light bounces forever inside an ellipse, a stadium or a lemon-shaped table, its faint trail building up glowing caustic curves – or filling the table with chaos.

A point of light bounces forever inside an ellipse, a stadium or a lemon-shaped table, its faint trail building up glowing caustic curves – or filling the table with chaos.

In the app you can adjust the colours, bounce speed and trail. It runs natively on your Mac, drawn live in real time – no video, never quite the same twice.

Use it on your Mac

  1. Get SCRNSVRS free from the Mac App Store.
  2. Select Billiard Orbits in the library.
  3. Click Set as Screensaver or Set as Wallpaper – or both.
Download on the Mac App StorePreview free · macOS Tahoe 26 or later

Billiard Orbits FAQ

How do I set Billiard Orbits as my screensaver on a Mac?

Install SCRNSVRS free from the Mac App Store, select Billiard Orbits 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 Billiard Orbits as a live wallpaper?

Yes. Click Set as Wallpaper in SCRNSVRS and Billiard Orbits plays on your desktop behind your windows and icons. You can use it as screensaver and wallpaper at the same time.

Is Billiard Orbits free?

Billiard Orbits 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 Billiard Orbits a video loop?

No. Billiard Orbits 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 Billiard Orbits 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 Billiard Orbits costs next to nothing in everyday use.

Which Macs does Billiard Orbits run on?

Billiard Orbits needs macOS Tahoe 26 or later.

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