CyberLab Death To Pixels Shader Preset Packs

[soqueroeu]

Thank you very much for the clarification!!

[MIKEBLK]

Whts up Cyber.

Regarding your CyberLab Megatron miniLED Epic Death To Pixels 4K HDR Shader Preset Pack 05-12-25, I saw you’re now including a couple 11/2025 releases of the guest adv shaders in the download.

Are these presets now compatible with these two November versions or is the 2.29.24 version still the one?

[Cyber]

@MIKEBLK

Whts up Cyber.

Greetings @MIKEBLK, all is well. Hope you’re enjoying the new presets!

@MIKEBLK

Regarding your CyberLab Megatron miniLED Epic Death To Pixels 4K HDR Shader Preset Pack 05-12-25, I saw you’re now including a couple 11/2025 releases of the guest adv shaders in the download.

Are these presets now compatible with these two November versions or is the 2.29.24 version still the one?

@Cyber

From my W420M Preset Pack onwards, the correct version(s) of CRT-Guest-Advanced are self contained.

My presets don’t even reference the default CRT-Guest-Advanced folder except for my first Sony Megatron Colour Video Monitor Preset Pack.

My newest presets reference very recent versions of CRT-Guest-Advanced.

Users don’t need to worry too much about which versions of CRT-Guest-Advanced to use or install because they’re all included and individual presets reference the appropriate version of the shader.

Even if you update CRT-Guest-Advanced manually or using the Online Updater, it won’t affect my preset packs since the W420M pack.

[MIKEBLK]

@Cyber

Users don’t need to worry too much about which versions of CRT-Guest-Advanced to use or install because they’re all included and individual presets reference the appropriate version of the shader.

Very cool.

Is it as simple to just drag and drop ‘shaders’ folder into my RetroArch setup and I’m good to go?

[Cyber]

@MIKEBLK

Is it as simple to just drag and drop ‘shaders’ folder into my RetroArch setup and I’m good to go?

For the most part, yes. Custom Aspect Ratios are another thing that you can read about in the later posts in the thread.

[MIKEBLK]

Awesome brother.

Do the Megatron shader parameters get adjusted in your individual shader preset parameters or do they need to be adjusted in the Megatron shader parameters and saved as an override for your presets to work as intended?

Always a big fan of your work

[Cyber]

@MIKEBLK

Do the Megatron shader parameters get adjusted in your individual shader preset parameters or do they need to be adjusted in the Megatron shader parameters and saved as an override for your presets to work as intended?

I’m not sure if I fully understand this question. Don’t spare the details including screenshots and examples.

Sony Megatron Colour Video Monitor is one of the shaders that I use in my Sony Megatron Preset Packs’ shader stack.

The usual Sony Megatron Colour Video Monitor setup instructions apply here as well. Remembering that subpixel level shaders need some adjustments to suit individual display types and likewise HDR setups need optimizing per display, when finished adjusting a preset, you can then save a Core, Game or Directory Preset or if you’re using RetroArch v1.21.1 newer nightlies or v1.22.1 or higher, there’s now an option in the Manage Shader Preset menu to update the currently loaded preset directly.

If you know your stuff you can also manually mass edit multiple preset files directly using an app such as Notepad++.

Hopefully this answers at least part of your question. If not don’t hesitate to elaborate.

[MIKEBLK]

So when I use any one of your presets, if I go into the parameters and the Sony Megatron ‘parameter instruction set’ is present, I set tht up in the way I think is “correct” to the instructions based on my hardware?

It was a year or so ago tht you welcomed me here and I was able to jump into the hobby. Appreciate the patience with questions tht might be off or asked incorrectly

If you have any tips for the monitor Samsung Odyssey Neo G8 S32BG85 (Ls32bg852nnxgo)

[Cyber]

@Cyber

Follow the Sony Megatron Colour Video Monitor Setup Instructions properly for these presets to look as intended.

Instructions are in RetroArch under ‘Quick Menu->Shaders->Shader Parameters’

@Cyber

You have to follow the Sony Megatron Colour Video Monitor Setup Instructions properly for these presets to look as intended.

Please see instructions in RetroArch under ‘Quick Menu->Shaders->Shader Parameters’

See here for further info:

Sony Megatron Colour Video Monitor

[Screenshot_2022-10-22-22-34-48-80_92460851df6f172a4592fca41cc2d2e6] [Screenshot_2022-10-22-22-34-17-34_92460851df6f172a4592fca41cc2d2e6] [Screenshot_2022-11-09-19-48-09-02_92460851df6f172a4592fca41cc2d2e6] [Screenshot_2022-11-09-19-45-40-42_92460851df6f172a4592fca41cc2d2e6] [Screenshot_2022-11-09-19-47-23-51_92460851df6f172a4592fca41cc2d2e6] [Screenshot_2022-11-09-19-44-41-29_92460851df6f172a4592fca41cc2d2e6] The Sony Megatron Colour Video Monitor was the greatest CRT Sony never made. Stor…

https://www.youtube.com/watch?v=yNmJ0n-QMCY

https://www.youtube.com/watch?v=VghduLw79-E

https://www.youtube.com/watch?v=UjJIfLSxxeM&t=12s&pp=ygUYY3liZXJsYWIgbWVnYXRyb24gNGsgaGRy

Seems like it might be time for a little refresher.

If you’re using an HDR setup, you need to find out your display’s peak luminance value. You can then set the paper white luminance value by eye using games or the 240p Test Suite.

You also have to adjust the Display’s Subpixel Layout and if you’re not using a 4K Display, the Display’s Resolution and possibly also the CRT Resolution (TVL) parameters.

[MIKEBLK]

yea, those are the ones. nvr tweaked TVL before

[Cyber]

@MIKEBLK

Samsung Odyssey Neo G8 S32BG85

Subpixel Layout RGB

Real Scene 422 cd/m²

Peak 2% Window 824 cd/m²

Sustained 50% Window 559 cd/m²

Sustained 100% Window 317 cd/m²

Samsung Odyssey Neo G8 S32BG85 Review

Besides my Sony Megatron HDR ready preset packs, you can also check out my Mega Bezel 4K HDR Ready presets in my Mega Bezel Preset Pack. They use a hybrid approach and are geared towards dimmer HDR Displays around HDR 400.

There’s no one magic value for peak luminance or paper white luminance because they’re all conditional and based on the scene being displayed. The Peak Luminance values we seek via RTINGS and the Paper White Luminance values are just to get an idea or ballpark value of what our individual displays might be capable of.

In some cases the values that are saved in the presets might actually happen to look good on your display, especially if it is calibrated in HDR mode.

If using my Mega Bezel HDR ready presets, you would need to set your Peak and Paper White Luminance values in the Settings–>Video–>HDR Menu.

These presets are in the Mega_Bezel_Packs\CyberLab\MBZ__1__Advance_Full_Reflections\CyberLab_4K_HDR_Presets folder.

I use a 24/7 HDR setup on my PC. If you’re using Windows 11 and run the HDR Calibration Wizard, that should help immensly with getting your HDR and even non-HDR content including shaders to work more seamlessly.

[MIKEBLK]

@Cyber

There’s no one magic value for peak luminance or paper white luminance because they’re all conditional and based on the scene being displayed. The Peak and Paperwhite values we seek via RTINGS are just to get an idea or ballpark value of what our individual displays might be capable of.

I usually set this somewhere 200-400 and call it.

@Cyber

I use a 24/7 HDR setup on my PC. If you’re using Windows 11 and run the HDR Calibration Wizard, that should help immensly with getting your HDR and even non-HDR content including shaders to work more seamlessly.

[MIKEBLK]

@Cyber

I use a 24/7 HDR setup on my PC. If you’re using Windows 11 and run the HDR Calibration Wizard, that should help immensly with getting your HDR and even non-HDR content including shaders to work more seamlessly.

yea I’ve been on HDR since getting the monitor. What would be the use case for switching to SDR when talking emulation gaming?

[Cyber]

@MIKEBLK

What would be the use case for switching to SDR when talking emulation gaming?

I really can’t say because I’ve long moved on from that type of switching back and forth scenario. I run everything in HDR so I’m used to it. I’m always looking to reap the benefits of getting the maximum brightness out of my screen because it benefits any shader scenario that I encounter, not just Sony Megatron Colour Video Monitor.

Maybe someone who’s more concerned with colour accuracy and creator’s intent might prefer switching between modes which match the content. Also, in the early days of HDR on PC, there was no HDR Calibration Wizard so initial impressions of anything that was created for SDR when viewed in HDR mode might have been that things looked horrible.

Over time, this aspect of things has improved considerably however.

That’s one of the reasons why some might say that Windows 11 handles HDR better than Windows 10.

[soqueroeu]

@Cyber

Subpixel Layout RGB

Real Scene 422 cd/m²

Peak 2% Window 824 cd/m²

Sustained 50% Window 559 cd/m²

Sustained 100% Window 317 cd/m²

What information from this technical sheet should I consider when configuring my RetroAch?

[anikom15]

I don’t know the details about how RetroArch’s HDR system but works, but the standard is supposed to work at absolute luminances and it’s up to the display to figure out how to map those luminances to what it’s actually capable of displaying. 1000 and 100 are the reference values but you can still have values over 1000.

Since we don’t exactly know how the displays are compensating for their limitations, using measured values isn’t too useful. I think it would be more productive to start with 100 and 1000 (because the standard dictates that those values should work for any ‘HDR’ display) and tune by eye with test images for the content you’re actually going to use as needed.

[Cyber]

@soqueroeu

What information from this technical sheet should I consider when configuring my RetroAch?

This information is not for you it’s concerning @MIKEBLK’s display. It provides RTINGS’ test results for HDR Brightness, which he can then use to help continue Peak Luminance settings for his display according to the Sony Megatron Colour Video Monitor’s setup instructions.

[Cyber]

The best people to answer the questions of how it’s supposed to work and what’s the correct way to set things up might be @MajorPainTheCactus and @Azurfel.

We can also go with the setup instructions which have been embedded in the Shader Parameters menu.

There are many parameters which can skew the results if trying to treat the Peak and Paper White Luminance values as absolutes, for example Gamma, Scanline Dynamics, even Colour temperature settings and Phosphor choice.

I’ve always felt the instructions to be a bit vague and inadequate because it says go to RTINGS to find out your Peak Luminance but when you go to RTINGS there’s no one value called Peak Luminance. There are several values each depending on Window Size, which leaves ambiguity and things then end up being subject to the user’s interpretation.

In the past @MajorPainTheCactus has mentioned that certain parameters should be set to neutral/default before attempting to adjust things like Peak and Paper White Luminance.

As for me, I just do what works for me. I just tend to experiment and play around with the knobs until I get things the way I like.

These are some of the “test images” I use:

New CRT shader from Guest + CRT Guest Advanced updates

I can give you a few games and scenarios off the top of my head: Donkey Kong Country - SNES The gradients in the green Nintendo Logo. I like them to gradually fade to black without crushing the darker tones. Similarly the speakers in the boom box, I like to be able to see the speakers without raising the black levels. Super Metroid - SNES Blend dithering on the letters on the Title Screen. Super Mario World - SNES Blend checkerboard dithering on blue background and water. Super Double Dr…

I think the idea behind Sony Megatron Colour Video Monitor is to harness as much brightness as possible from your display without clipping things or messing up the tonal balance and accuracy.

[Azurfel]

Peak 2% for “HDR: Display’s Peak Luminance”.

The correct “HDR: Display’s Paper White Luminance” setting is relative not only to the max brightness of your display and you target “CRT” max brightness, but also the “R/G/B Scanline Min” settings, and the “R/G/B Scanline Max” settings, and cannot be calculated based solely on display capabilities.

For example, with an aperture grille mask, if you set all the mins to 0.650000, and all the maxs to 1.000000, a paper white setting of 668 will result in an approximately 100 nits on an LG C1 set to D65. (At D93, a lower paper white of 625 is sufficient.)

Alternatively, with a slot mask, all mins set to 0.980000, and all maxs to 1.330000, a paper white of 614 results in 100 nits (610 for D93.)

[Cyber]

@Azurfel, thank you very much for this. Even after asking these types of questions seeking this level of clarity in the past, the responses seemed a bit vague to me so like I do in many situations, I just relied on trial and error and trusted what I was seeing with my eyes.

It is long overdue but this should be added to the official documentation of Sony Megatron Colour Video Monitor in my opinion.

No pressure but don’t be too shy about adding your azurfel mod to the repository including all of these, it’s current and other recommended improvements.

Thanks again. I appreciate anything that removes room for ambiguity, doubt and possible confusion to the end user.

@Azurfel

The correct “HDR: Display’s Paper White Luminance” setting is relative not only to the max brightness of your display and you target “CRT” max brightness, but also the “R/G/B Scanline Min” settings, and the “R/G/B Scanline Max” settings, and cannot be calculated based solely on display capabilities.

Not to mention “CRT Resolution (TVL)”. That also skews brightness significantly.

@Azurfel

For example, with an aperture grille mask, if you set all the mins to 0.650000, and all the maxs to 1.000000, a paper white setting of 668 will result in an approximately 100 nits on an LG C1 set to D65. (At D93, a lower paper white of 625 is sufficient.)

Alternatively, with a slot mask, all mins set to 0.980000, and all maxs to 1.330000, a paper white of 614 results in 100 nits (610 for D93.)

By chance do you have data for Shadow (Dot) Mask? Also, can you add the “TVL” and 'Display’s resolution", “Gamma” and “Saturation” used in your testing as those would have an effect on relative brightness as well.