Blur Busters

TL;DR: Lots of display progress still coming. We currently predict 2000 Hz consumer displays arriving by 2030, and 4000 Hz consumer displays arriving by 2035.

Blur Busters Area 51 Portal, where I'm also cited in 50+ research papers: blurbusters.com/area51

Strobing is a fantastic solution for lower frame rates (Hello DyAc and BFI and GSYNC Pulsar and XG2431) but not everyone can handle it, too many of us get eyestrain.

Obviously, our work is cut in front of us, to fix 100 layers of the "weak links onion" of many system and hardware stutters/blurs. It's why 500Hz OLEDs currently outperform 1000 Hz LCD.

Blur Busters Law dictates:
- Motion blur = pulsetime for strobing
- Motion blur = frametime for sample & hold

So techless nailed the ballpark retina Hz for a strobeless sample-and-hold display. A display where you want to simultaneously eliminate both motion blur AND stroboscopics AND flicker.

That's for eye tracked gazes. For fixed gaze, that's stroboscopic effects (phantom array) at that pixel step.

If you go above 8K, move to a 16K 180-degree VR display with even faster motionspeeds, and you start getting numbers much closer to 40,000 fps=Hz like the techless video.

If you add GPU motion blur to fix stroboscopics:

- 2000 Hz, 8000pps = 8 pixel motion blur
- 4000 Hz, 8000pps = 4 pixel motion blur
- 8000 Hz, 8000pps = 2 pixel motion blur
- 16000 Hz, 8000pps = 1 pixel motion blur

For perfect framerate=Hz panning on 8K at 8000 pixels/sec, at perfect 0ms GtG and no jitter:

- 2000 Hz, 8000pps = 4 pixel motion blur
- 4000 Hz, 8000pps = 2 pixel motion blur
- 8000 Hz, 8000pps = 1 pixel motion blur

Let's imagine a giant 2000Hz 8K TV on your desktop.
Retina resolution, sample and hold, no blur reduction, and big. You have a 90-degree FOV of that TV on your desk.

Motion blur puts pixels below retina resolution. Panning motion at 8000 pixels per second, one screen width/sec. Easy to eye-track.

This is assuming you zero out all 1000+ hardware & software weak links. Tiny list of examples: no jitter, no stutter, no GtG. GtG makes 500Hz OLED have clearer motion than 1000Hz LCD: You don't want 1ms GtG before/after your 1ms frametimes.

Now, let's go extreme, for the 5-digit number.

Approximate orders of magnitude, fps=Hz:
- 10 = slideshows turns into motion;
- 100 = flicker fusion (Talbot Plateau)
- 1000 = (at GtG=0.0) no motion blur for tiny 1080p screens
- 10000 = both motion blur & stroboscopics cease to be visible for wide-FOV retina resolution screens.

The human eye can see 39,620 Hz YouTube video by techless

Techless video where human eyes can detect display imperfections up to nearly 40,000fps 40,000 Hz due to stroboscopic effect:

Retina refresh rate is extremely high! 5-digit Hz.
Kudos to techless for fantastic video (39,620 Hz, though estimated ~20,000 Hz a few years ago).

There are 4 main visibility thresholds. Expand this post to dive into rabbit hole for a moment 🕳️🐇ִֶָ

Blur Busters Open Source Display Initiative – Refresh Cycle Shaders - Blur Busters We publish an open source specification for a flexible refresh cycle shader processing system that can plug-in to applications, drivers, operating system, or box-in-middle, for many purposes including...

Me too! Linux needs some OS shader hooks.
May Wayland add a refresh cycle shader hook?
See blurbusters.com/open-source-...
I already have an LCD simulator and plasma TV simulator shader coming too.

Asus V7700 Deluxe with the CRT 3D glasses

Thanks for having me on the program Bob!

NVIDIA Listened – G-SYNC Pulsar Refresh Rate Range Widened To Optionally Include 60 Hz - Blur Busters NVIDIA's impressive but heavily delayed monitor that combines ULMB2 and G-SYNC into one technology, GSYNC Pulsar. After almost two years of engineering, the monitors are finally about to ship to retai...

Blur Busters Victory -- NVIDIA Listened to Community
G-SYNC Pulsar firmware upgrade coming to support optionally extended Pulsar range as wide as 48-360 Hz
blurbusters.com/nvidia-liste...

Yes, for a single GPU, the strategic use of a framerate cap, and configuring the ShaderBeam CRT Hz to match. That can produce the best experience!

Not a performance hit but a synchronization reliability issue.

A lot of GPUs have difficulty multitasking a framerate-perfect (critical framerate=Hz) shader with intense game rendering.

If you have good GPU and good drivers, a single GPU is workable with some performance tweaks

There's tricks to run CRT simulator in GameScope hooks. Some of my fans ran ReshadeDeck to get 45Hz CRT on 90Hz portable OLED

Try to use OLED and also make sure your native:simulated Hz ratio is 4 or more for best experience too!

Finally. Merry Christmas!
Reliable CRT beam simulation for Windows Desktop.
Best when used with 2 GPUs. One big GPU for game, one little iGPU for CRT simulator.

Also HDR doesn't yet work in Safari, but I will be adding WebGPU HDR early 2026!

Chrome/Edge/Brave currently performs best (1000fps). For Safari, use disable "Prefer Page Rendering Updates Near 60fps"
forums.blurbusters.com/viewtopic.ph...

TestUFO: OLED ClearType Beta for WOLED Displays TestUFO: OLED ClearType Beta for WOLED Displays

If you have an an LG WOLED of the old subpixel structure, try this demo:
testufo.com/woled-cleart...

- Blur Busters Blur Busters is excited to announce Version 3.0 of TestUFO has been launched at testufo.com! What is TestUFO? TestUFO is the world's most popular web-based display testing suite, used by many hundreds...

PRESS RELEASE - Official Public TestUFO 3.0 Announcement. TestUFO 3.0 Upgrades:
- Faster, Mobile friendly
- Custom scaling, 1:1 scale, 200%/400%, square pixels
- WebGL & shaders, WCG/HDR, Display-P3 & Rec.2020
- 1000+ Hz support (with tweak)
- Improved settings screen
blurbusters.com/announcing-t...

TestUFO: Chroma Subsampling - 4:2:2 vs 4:4:4 TestUFO: Chroma Subsampling - 4:2:2 vs 4:4:4

The beta page is up early: testufo.com/chroma

I also will be adding a chroma subsampling test in 2026 too!

Oh; Not HDR but subpixels. It's the phenomenon where odd subpixel layouts of OLEDs result in colored fringing around text/etc. This has been a problem for decades when the OS isn't aware of the odd subpixel layouts;
(The custom "ClearType" / odd subpixel compensation demo is not published yet.)

@marat-tanalin.bsky.social
Please view: forums.blurbusters.com/viewtopic.ph...
And zoom your browser & adjust OS DPI to see what happens.

Oh wow! I've been working on shaders that de-fringe color artifacts on WOLED & QD-OLED subpixel structures. I added WebGL & HDR support (Rec.2100 and Display-P3 HTML canvases) to the TestUFO 3.0 website which means I can now execute my own shadertoys inside TestUFO. Filters coming 2026 (MIT license)