Software BFI options?

Ask about motion blur reduction in gaming monitors. Includes ULMB (Ultra Low Motion Blur), NVIDIA LightBoost, ASUS ELMB, BenQ/Zowie DyAc, Turbo240, ToastyX Strobelight, etc.
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Re: Software BFI options?

Post by Chief Blur Buster » 13 Sep 2023, 21:30

F1zus wrote:
09 Sep 2023, 18:03
Bro, OLED displays do not have motion blur, it is minimal there. gtgoled = 0.03ms. This is faster than any existing panels.
GtG is not the cause of motion blur, MPRT is!

Please study the two DIFFERENT pixel response standards first, www.blurbusters.com/gtg-vs-mprt

Also, OLED has motion blur -- just less than LCD. See Why Do Some OLEDs Have Motion Blur?

0ms GtG still has MPRT motion blur!

LCD strobing still outperforms OLED and OLED BFI.

OLED still benefits from BFI though.

Remember, we're considering EYE-tracking motion blur, because the 2nd UFO at www.testufo.com/eyetracking still blurs on OLED -- try it. That's MPRT blur, not GtG blur.

I am in 25 research papers, please see Blur Busters Research Portal to do some educational textbook reading, before claiming OLED has zero blur. Yes, it's less blur, but the blur is reduced only by roughly a third to a half -- in other words, a 240Hz OLED (without BFI) has roughly the same motion blur as a 480 Hz LCD (without BFI).

Also, retina refresh rate is not until 20,000Hz or so, although you need 4x-8x refresh rate differences to easily tell, much like the difference between camera shutter speeds (1/240sec) vs (1/1000sec) -- which is the MPRT blur of a 0ms-GtG panel. MPRT blur of "X Hz" (strobeless) can never average to less than the blur of a specific camera shutter speed:

Try viewing these on your OLED display -- www.testufo.com/eyetracking and www.testufo.com/persistence -- the background behind the moving UFO (2nd UFO) always creates an optical illusion from display motion blur. The optical illusions only disappear on a CRT or short-pulsewidth strobes -- but will always blur (and the blur-generated opical illusion appears) if the display is sample and hold (even if GtG is zero!).

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This is because as your analog eyes moves, your eyes are in a different position at beginning of a visible refresh cycle, and at the end of a visible refresh cycle. Your moving eyeballs (tracking eyes) blurs the sample-and-held pixels across your retina, as sample-and-hold display continuously shine their pixels for a whole refresh cycle. So 60Hz = same blur as a 1/60sec camera shutter.

Motion blur (from MPRT persistence, not GtG) is frametime on sample and hold.
Motion blur (from MPRT persistence, not GtG) is pulsetime on impulsed (BFI/strobed)*

A great example of variable persistence BFI educational animation demo is www.testufo.com/blackframes#count=4&bonusufo=1 which demonstrates that MPRT motion blur is pixel visibility time (Regardless of sample and hold, or impulsed), which is the exact remaining display motion blur whenever GtG=0

*For impulsed, there can be duplciate image effects on a flicker/strobed/BFI display, single image if framerate=Hz, double image if framerate=1/2 of Hz (ala CRT 30fps at 60Hz). Animation demo: www.testufo.com/blackframes#multistrobe=2
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krisdee1981
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Re: Software BFI options?

Post by krisdee1981 » 08 Feb 2024, 15:05

Anybody tried software BFI on Oled monitors?
I have Alienware AW3423DWF with 164.900Hz. I don't like how BFI flickers at 60Hz on my LG C2, but at 82.450Hz it could be acceptable, and it's easier to hold steady 82.45fps. I already gave up with VRR, because I couldn't stand flickering.
What options do we have, maybe some kind of shader?

nuninho1980
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Re: Software BFI options?

Post by nuninho1980 » 08 Feb 2024, 18:20

krisdee1981 wrote:
08 Feb 2024, 15:05
Anybody tried software BFI on Oled monitors?
I have Alienware AW3423DWF with 164.900Hz. I don't like how BFI flickers at 60Hz on my LG C2, but at 82.450Hz it could be acceptable, and it's easier to hold steady 82.45fps. I already gave up with VRR, because I couldn't stand flickering.
What options do we have, maybe some kind of shader?
Ok. Sorry, I get no any eyestrain on still modern CRT monitor despite 50Hz (for multimedia with live TV Portugal and videos) and 60Hz (emulators(arcade, PS3...), SEGA, Konami games) as flickering. But I remember I got eyestrain on vintage CRT monitor 14" AOC due to the lack of *purple* glass in 1994. :) But at 50/60Hz, OLED with BFI is softer flicker ( = more persistence time than) than CRT. :lol: :)
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