A mathematical surface – a ripple, a saddle, rolling bumps or crossing waves – plotted as a wire mesh in perspective with every hidden line removed.
A mathematical surface – a ripple, a saddle, rolling bumps or crossing waves – plotted as a wire mesh in perspective with every hidden line removed.
In the app you can adjust the paper, ink, draw speed, function and grid lines. 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 Function Surface 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.
Function Surface FAQ
How do I set Function Surface as my screensaver on a Mac?
Install SCRNSVRS free from the Mac App Store, select Function Surface 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 Function Surface as a live wallpaper?
Yes. Click Set as Wallpaper in SCRNSVRS and Function Surface plays on your desktop behind your windows and icons. You can use it as screensaver and wallpaper at the same time.
Is Function Surface free?
Function Surface 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 Function Surface a video loop?
No. Function Surface 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 Function Surface 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 Function Surface costs next to nothing in everyday use.
Which Macs does Function Surface run on?
Function Surface needs macOS Tahoe 26 or later.
