Seen from above, a flat lens of fine concentric grooves hangs over a dark table and gathers a wandering lamp's light into a bright spot ringed by a caustic, while its grooves glint as the light moves.
Seen from above, a flat lens of fine concentric grooves hangs over a dark table and gathers a wandering lamp’s light into a bright spot ringed by a caustic, while its grooves glint as the light moves.
In the app you can adjust the colours, grooves and caustic strength. 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 Fresnel Focus 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.
Fresnel Focus FAQ
How do I set Fresnel Focus as my screensaver on a Mac?
Install SCRNSVRS free from the Mac App Store, select Fresnel Focus 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 Fresnel Focus as a live wallpaper?
Yes. Click Set as Wallpaper in SCRNSVRS and Fresnel Focus plays on your desktop behind your windows and icons. You can use it as screensaver and wallpaper at the same time.
Is Fresnel Focus free?
Fresnel Focus 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 Fresnel Focus a video loop?
No. Fresnel Focus 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 Fresnel Focus 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 Fresnel Focus costs next to nothing in everyday use.
Which Macs does Fresnel Focus run on?
Fresnel Focus needs macOS Tahoe 26 or later.
