Search found 55 matches

by blurfreeCRTGimp
06 Dec 2025, 20:33
Forum: Area 51: Display Science, Research & Engineering
Topic: Could CRT Beam sim have different scan directions simultaneously?
Replies: 1
Views: 818

Could CRT Beam sim have different scan directions simultaneously?

I was messing around with CRT Beam simulator via shader glass on my XL2720. My monitor can only handle a 1092 vertical total at 180hz. I have been utilizing the phosphor fade BFI to great effect, enjoying panning shots at 1920 pixels per second. This has been massive for enjoying my monitor.

Anyway ...
by blurfreeCRTGimp
25 Oct 2025, 23:26
Forum: Area 51: Display Science, Research & Engineering
Topic: Novel Backlight inspired by Nintendo virtual Boy and DIY perks
Replies: 0
Views: 3460

Novel Backlight inspired by Nintendo virtual Boy and DIY perks

https://youtu.be/IMd35q5PWFw?si=9NsynxMo6MSU_FKR (How The Virtual Boy Display Works)

https://www.youtube.com/watch?v=qXrn4MqY1Wo (DIY Perks infinite contrast LCD Using an old DLP projector and OBS filters to make a light map that solves all the alignment problems of dual cell LCD attempts.)

I was ...
by blurfreeCRTGimp
17 Sep 2025, 18:39
Forum: Area 51: Display Science, Research & Engineering
Topic: A question for the CHief about the CRT Beam SIm
Replies: 1
Views: 2854

A question for the CHief about the CRT Beam SIm

As you know I have been enjoying using the shaderglass alpha to do a Phosphor fade BFI on my BenQ XL2720 LCD overclocked at 180 FPS. I was using it today, and thinking about something John Carmack had said during the 1st Oculus connect conference years ago.

He mentioned using sliced time warp for ...
by blurfreeCRTGimp
23 Aug 2025, 00:35
Forum: Area 51: Display Science, Research & Engineering
Topic: Combining XL2720 Blur Reduction with BFI (hybrid of CRT+BFI)
Replies: 2
Views: 11588

Re: Combining XL2720 Blur Reduction with BFI (hybrid of CRT+BFI)

"Improved motion blur reduction it does not give, but it's all in the settings nuances and how it's configured."

I wouldn't exactly say that my title was red herring, hype, or "bait" that's a bit harsh chief lol. I'm not a computer vision scientist, a physicist, or an engineer. I am a hobbyist. I ...
by blurfreeCRTGimp
16 Aug 2025, 00:19
Forum: Area 51: Display Science, Research & Engineering
Topic: Combining XL2720 Blur Reduction with BFI (hybrid of CRT+BFI)
Replies: 2
Views: 11588

Combining XL2720 Blur Reduction with BFI (hybrid of CRT+BFI)




I too have tested the newest version of shaderglass on my BenQ XL2720 that I have overclocked to 180 hz. With the standard strobing implementation on this monitor I can resolve 1200 pixels per second in motion, which is insanely good for this monitor.

Here are some pursuit shots that I have ...
by blurfreeCRTGimp
14 Aug 2025, 13:52
Forum: Eliminating Motion Blur — BFI / ULMB / ELMB / DyAc / framegen / LSS / etc
Topic: First Test Results are in for Shader Glass (CRT Beam Simulator) on Universal Screen Capture Software.
Replies: 6
Views: 8250

Re: First Test Results are in for Shader Glass (CRT Beam Simulator) on Universal Screen Capture Software.



I too have tested the newest version of shaderglass on my BenQ XL2720 that I have overclocked to 180 hz. With the standard strobing implementation on this monitor I can resolve 1200 pixels per second in motion, which is insanely good for this monitor.

Here are some pursuit shots that I have ...
by blurfreeCRTGimp
13 Aug 2025, 12:40
Forum: Eliminating Motion Blur — BFI / ULMB / ELMB / DyAc / framegen / LSS / etc
Topic: First Test Results are in for Shader Glass (CRT Beam Simulator) on Universal Screen Capture Software.
Replies: 6
Views: 8250

Re: First Test Results are in for Shader Glass (CRT Beam Simulator) on Universal Screen Capture Software.

I too have tested the newest version of shaderglass on my BenQ XL2720 that I have overclocked to 180 hz. With the standard strobing implementation on this monitor I can resolve 1200 pixels per second in motion, which is insanely good for this monitor.

Here are some pursuit shots that I have taken ...
by blurfreeCRTGimp
18 Jun 2025, 19:38
Forum: High Frame Rate Video (HFR, UltraHFR, 120fps, 240fps, 1000fps)
Topic: Lossless Scaling LSFG + 48 FPS video is insane
Replies: 12
Views: 37409

Re: Lossless Scaling LSFG + 48 FPS video is insane

Ok, so maybe this just looks better to my eyes but I just discovered a bit of a trick.

If I am on youtube and watching a 30 fps video, I can put playback speed up to 1.20x or 1.30X and it doesn't distort the audio noticeably, but it does give me an additional 3 base FPS to do frame generation from ...
by blurfreeCRTGimp
15 Mar 2025, 20:33
Forum: Area 51: Display Science, Research & Engineering
Topic: MEMS based Backlight for LCD in light of DIY perks latest video
Replies: 1
Views: 8468

MEMS based Backlight for LCD in light of DIY perks latest video

This video demonstrates the DIY perks youtube channel using an old DLP projector to get so close to near pixel level dimming for on an old LCD without the drawbacks of all recent attempts at dual layer LCD.

At 13:05 in the video below he solves for the main alignment problems of dual layer LCD ...
by blurfreeCRTGimp
02 Jan 2025, 20:20
Forum: High Frame Rate Video (HFR, UltraHFR, 120fps, 240fps, 1000fps)
Topic: Lossless Scaling LSFG + 48 FPS video is insane
Replies: 12
Views: 37409

Re: Lossless Scaling LSFG + 48 FPS video is insane

Ok Chief I just downloaded the latest nightly build of Retroarch to try the rolling scan BFI implementation with my XL2720 overclocked at 180hz.

Holy Crap! rolling scan looks way better than global strobe, especially with that brightness adjusted soft roll off you have going on. : )

These ...