Introducing CyberLab Megatron miniLED 4K HDR Game BFI Turbo Duo_DC S-Video CyberTron Epic CAR9x8x or CAR7x6x W4.slangp
Hope more and more folks are viewing these on their properly calibrated HDR setups now and you should definitely be viewing them at 1:1 scale or zoomed in. SDR users you need to brighten your display in order to view properly.
Bonus Content:
Hey @Cyber, Thanks a lot for you shader pack!!
Are their shaders an evolution of each other or are they a different experience? Can I use them with newer versions of Guest Shaders?
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.
You’re free to update to the latest CRT-Guest-Advanced via the Online Updater or Manually but there most likely won’t be any benefit in using other versions of CRT-Guest-Advanced than the ones I intended to be used. In many cases things won’t look as intended.
I don’t know. It can be either. Sometimes changes can be minor, sometimes changes can be major. Sometimes an older preset can be better in many ways than a new experimental preset. I simple share what I use. Down to the folder structure is the same.
It helps to refer to specific presets and / or packs if you want less general answers to your questions.
Thanks!!
One more thing: what is the meaning of these values, and are there any specific instructions for their use?
In a nutshell, I found out that slot masks, shadow (dot) masks and scanlines align differerently depending on the vertical scale factor so I started testing and adjusting my scanlines and vertical offsets differently depending on the vertical scale factor.
Thank you very much for the clarification!!
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?
Greetings @MIKEBLK, all is well. Hope you’re enjoying the new presets!
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.
Very cool.
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.
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 
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.
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)
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.
yea, those are the ones. nvr tweaked TVL before
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
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.
I usually set this somewhere 200-400 and call it.
yea I’ve been on HDR since getting the monitor. 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.
