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blurbusters.com
Blur Busters
@blurbusters.com
The Temporal Company: Everything Better Than 60Hz™
Time dimension on displays: Hz-GtG-MPRT-blurs-motion-lag-VRR-framerate-GSYNC-FreeSync-tearing-frametime-24p-48p-120Hz-240Hz-360Hz-480Hz-1000Hz...
Display researcher. Creator of TestUFO.com Motion Tests.
Pinned
Launchpad Countdown Hold at T-2 Days
STATUS: We discovered some bugs 🐞 that required ~2 extra days for the UFO to beam up. 🛸 We don't want a warp core breach in the UFO. 🛸
UFO: Exception Error (browser compatibility crash) + Settings glitches + fixes undergoing validation
TestUFO 3.0 Webapp Launch Countdown T-3 Days!
<Feature Broadcast> 📺 webgl support and shadertoy support 📺 CRT electron beam simulator 📺 software based motion blur reduction demo 📺 realtime mode 📺 slomo mode 📺 reduce sample & hold blur 📺 open source display sim shaders 📺
November 2, 2025 at 12:34 AM
Transmission Alert: TestUFO Version 3.0 is launching in T-4 days
TestUFO Mothership Alert: 3.0 Launch in T-4 Days
/Incoming Subspace Transmission/
📡 new native resolution test pattern 📡 custom pixel scaling 📡 smooth & pixelated 📡 1:1 native resolution 📡 optional override of browser zoom & system dpi 📡 nearest neighbour pixelated mode 📡
October 31, 2025 at 7:40 PM
TestUFO Version 3.0 Launch Countdown:
🚀 T-5 days
DAILY STATUS ✨ new version of worlds most popular display testing website ✨ countdown paused to fix bugs ✨ countdown resumed to launch after current holidays {Halloween, Día de Muertos} ✨ sneak preview of new native-rez feature ✨
October 30, 2025 at 10:16 PM
ViewSonic XG2431 Big Deep Dive Piece! 💥
Guest writer 'Discorz' spends over a year testing motion blur reduction capabilities of XG2431. Tells you how to custom-tune PureXP strobe performance for stellar crosstalk-free motion clarity without double images.
blurbusters.com/viewsonic-xg...
ViewSonic XG2431 Analysis – A Blur Busters Fan’s Deep Dive of Motion Blur Reduction # - Blur Busters
ViewSonic XG2431 Analysis – A Blur Busters Fan’s Deep Dive of Motion Blur Reduction Foreword by Blur Busters Founder Mark Rejhon I helped ViewSonic create one of the world's most flexible motion blur ...
blurbusters.com
October 22, 2025 at 10:18 PM
Apple Vision Pro M5 running TestUFO:
Mythbusters Adam in Adam Savage's Tested, uses TestUFO to confirm that the Apple Vision Pro M5 Safari Browser supports 120Hz out of the box without needing to adjust "Prefer Page Rendering Updates Near 60fps" setting.
www.youtube.com/watch?v=LzZ2...
Tested: Apple Vision Pro M5 Review!
YouTube video by Adam Savage’s Tested
www.youtube.com
October 22, 2025 at 12:11 AM
Seasonal Mini Update!
1. Blur Busters won two blue ribbon prizes at conventions (DisplayWeek 2024, 2025)
2. Blur Busters is about to launch TestUFO 3.0 this month.
3. Yes, we know, the other website badly needs updates.
4. We're in skunkworks mode. There will be a major 2026 product announcement.
October 17, 2025 at 11:08 PM
Scotty, we need more compute power!
September 24, 2025 at 2:28 AM
Machine from year 2015 with a built in browser? Or an old XP-powered Internet Explorer retro gaming system? Or old SmartTV browser?

You can use TestUFO 1.0 at old.testufo.com

It runs in many very ancient browsers.
Blur Busters TestUFO Motion Tests. Benchmark for monitors & displays.
Blur Busters UFO Motion Tests with ghosting test, 30fps vs 60fps vs 120hz vs 144hz vs 240hz, PWM test, motion blur test, judder test, benchmarks, and more.
old.testufo.com
June 26, 2025 at 3:41 AM
TestUFO now has several dozens of different display motion tests!

And more is about to launch with the upcoming TestUFO 2.2 including the long-awaited CRT Simulator.
June 21, 2025 at 4:37 AM
720 Hz OLED FTW
June 9, 2025 at 1:43 PM
Good afternoon Display Geeks at DisplayWeek!
Mark Rejhon is at DisplayWeek and open for new business, or just to talk shop.
May 14, 2025 at 12:06 AM
Deciding how to bust display motion blur? BFI? Strobing? CRT? Framegen? Organic? Etc?

Users choose!

William writes about blur busting methods including flicker-based (BFI, CRT, strobing) and flickerless (framerate-based, framegen-based, etc)
Flicker vs Framegen: Blur Busting via BFI/CRT/Strobing or via Extra Frame Rate Methods - Blur Busters
Using strobing and interpolation to improve your motion fidelity.
blurbusters.com
May 9, 2025 at 8:43 PM
Want VRR in Google Chrome / Safari / FireFox?
Newly simplified web browser VRR standardization proposal at WICG Proposals:
github.com/WICG/proposa...
Helps WebGL and WebGPU apps, and would help TestUFO too! If you're a web developer, comment!
PROPOSAL: (VRR) Simplest Incubatation Path for Variable Refresh Rate (FreeSync / GSYNC / etc) · Issue #208 · WICG/proposals
Introduction Browsers generally don't support Variable Refresh Rate (VRR). Terms: FreeSync, G-SYNC, HDMI VRR, VESA Adaptive-Sync, Apple ProMotion, etc. User Benefits of Variable Refresh Rate (VRR) ...
github.com
April 17, 2025 at 11:22 AM
Founder got surprised for his 51st birthday!
April 16, 2025 at 4:13 PM
Happy 51st birthday, to founder Mark Rejhon, from the UFO Area 51 Laboratory!
April 9, 2025 at 11:30 PM
Happy 404 Day.

I just did the world's first HDR State-of-Web test.
This is not even on caniuse site!

More Info: github.com/blurbusters/...
April 4, 2025 at 6:33 AM
Nintendo Switch 2 announced support for 120Hz and HDR. Including 120Hz Dock support.
Now all major platforms (PC/Mac/Linux/iOS/Android + Switch/PS/XBOX) have 120Hz+HDR.
April 2, 2025 at 9:12 PM
For HDR fans, good news: HDR is now supported by Safari Technology Preview Version 125.
- AVIF HDR
- JPEG XL HDR
- WebGPU HDR (not WebGL or Canvas2D)
March 30, 2025 at 10:20 PM
Parallels virtual machine for MacOS does not yet support HDR Windows gaming. Help vote to add HDR support:

1. Register for Parallels Forums:
my.parallels.com/login?servic...

2. Read HDR thread:
forum.parallels.com/threads/add-...

3. Vote for HDR support:
forum.parallels.com/posts/888052...
March 21, 2025 at 12:26 AM
Reposted by Blur Busters
Vint is now fully released!
My temporal upscaling application supports advanced machine learning based interpolation, BFI strobing, and advanced CRT emulation based on the work of Blur Busters.

Download it today at from itch io: willse.itch.io/vint

or Steam: store.steampowered.com/app/3448910/
Save 20% on Vint: Realtime Video Interpolation and CRT Emulation on Steam
Vint is a high quality and performant machine learning based interpolation and temporal upscaling system to upscale most video formats, web sources, and even video capture card sources all in realtime...
store.steampowered.com
March 18, 2025 at 3:21 PM

Did you know?

Our famous TestUFO display tests now has a black levels / PLUGE test, too!
TestUFO: TestUFO Black Level (PLUGE) Test
TestUFO: TestUFO Black Level (PLUGE) Test
testufo.com
February 7, 2025 at 8:53 PM
Reposted by Blur Busters
I'm happy to share that my temporal upscaling and interpolation app, Vint, now supports CRT beam scanning emulation based on @blurbusters.com/crt.

CRT emulation allows any arbitrary video to strobed with less flicker than simple BFI.

Vint is now on Steam: store.steampowered.com/app/3448910/...
CRT Simulation in a GPU Shader, Looks Better Than BFI
Who Is this for? CRT Enthusiasts, software & hardware developers, emulator authors, all of who wish to reduce display motion blur of 60 years of legacy 60fps 60Hz content with softer flicker than BFI....
blurbusters.com
January 27, 2025 at 4:55 PM
Reposted by Blur Busters
Also, I'm willing to fund this "120 vs 480" more human visible than "60 vs 120" blind study (using mutually agreed scientific variables):

blurbusters.com/120vs480#bli...

(Scroll to Scientific Chapter)
Massive Upgrade With 120-vs-480 Hz OLED: Much More Visible Than 60-vs-120 Hz Even For Office
240+ Hz Not Just For Games: 4x & 8x Geometrics for Mainstream Win Human visibility of refresh rates are massively amplified with OLED. Many of us in the industry have noticed the mainstream sees 120fp...
blurbusters.com
January 24, 2025 at 7:30 AM
Blur Busters Open Source Display Shaders Version 1.02 updated!

- Added link to proposed Microsoft Display Shaders PowerToy
- Added Security Considerations
- Added use case: Accessibilitty
- Added link to screenshot of new Valve GameScope email.
January 24, 2025 at 1:33 AM
With recent successful introduction of blurless sample-and-hold (480Hz OLEDs), we're scrambling to give users additional choice of display motion blur reduction.

- Strobe/BFI/CRT blur busting
- Framerate-based blur busting

BFI/CRT blurbust, framegen blurbust, non-framegen blurbust, & other methods
S.O.S. framegen S.O.S.
Fake frames S.O.S. Fake frames

But aren't polygons & textures faking real life too, even if framegen only 0.1% of 2010-era TV interpolation?

Do we have alternatives for 4K 1000fps 1000Hz path traced photorealistic gfx?

120-vs-480 OLED is more human visible than 60-vs-120
January 23, 2025 at 10:08 PM