Sorry, guest.r but I haven’t been able to look at the whole thread. I do recall you mentioning somewhere that you made an effort to account for the WRGB pixel format on OLEDs. Which masks are these? Sorry if my question makes no sense.
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These masks are 7 - 9 (BW masks), although masks 8 and 9 seem to be handled differently on AMD and nVidia HW for some reason. If you want some ‘colorplay’ then they are best used with deconvergence options or the NTSC version.
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HI, always thanks for your work. I got a question about color thing.
Is it still hard to get the color like crt TV or monitors? I heard that LCD had a narrower color gamut compared to crt, and that’s the main reason why it is impossible to implement. But now there’s a lot of wide gamut monitors came out. things would be different.
So I recently bought LG-27GP850 monitor, but the result was different from what I expected. I tried using the color gamut and color profile options from shader provided, but The color is not like the real crt monitor. (when It compared to my PVM-14L2, SONY CPD-G200J monitor)
It would be foolish to expect them to be exactly the same. But it’s disappointing that it’s not even similar. Something seems overly dark and dull… I want to know which setting I’m doing wrong. or this LCD monitor’s wide gamut still isn’t enough?
※ LG-27GP850
- Gamut Coverage - sRGB : 100%, AdobeRGB : 88%, P3 : 96%
- I Calibrated to 6500K, 2.2 Gamma
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The dark part can mainly be corrected by increasing the overall brightness setting of your LCD, it’s more or less a HW issue. If you crank up brightness within the shader then you basically don’t increase peak brightness but will have color clipping issues.
If the colors seem dull then you can increase saturation and play with color temperature, to match your appearance. Ofc. there are plenty of brightness correcting parameters within the shader to tune the brightness curve too.
I like to mention that the vanilla setting shader output is quite neutral regarding what the core/emulator provides. So just do the steps in your preferred visual direction.
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Well I think the shaders are as good as it gets on this type of display that emmits much less light.
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If you’re having a hard time getting things to look the way you want then perhaps you can try my presets available at this link. They aren’t perfect and are not even trying to be accurate simulations but you may or may not like them. There are video clips available so you can see before you try them. Note that I’m in the process of updating them so what you see there today may not be the same tomorrow.
Another thing. It’s one thing to calibrate a monitor for work and another for play. I use my eyes to calibrate my monitors as well as Windows built in display calibration tool. Maybe you might get better results out of your games if you set your gamma and colour temperature the way it looks best to you and not necessarily to particular numbers.
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Hello, I’m trying to play with colors. At this point I have the following question:
Are the crt-color-profiles to be used “together” with the lut-color options or only one at a time? Is it for example intended to use the trinitron option on the lut-color option and on the crt-color-profile at the same time?
I’m sorry if this has been answered in the past.
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Lut colors are basically ‘more’ color profiles. They can be used together with standard profiles for any reason, but the preferred way is to chose one option.
As a remark, trinitron LUT profiles are calibrated to D65 color temperature, for better authenticity color temperature option is best adjusted to cooler/blueish colors.
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Thanks for the quick answer. Makes it clear. I’ll try the trinitron-lut further editing…
Will post something then.
I have to admit the venom shaders are addictive 
Not the first to say that I guess. More addictive then all the others ahhahah I explicitly wanted to know if one makes the screen more trinitron by using color-profile and lut on trinitron setting but know I know.
Would it make “sense” in terms of accuracy to put lut on ntsc and color profile on trinitron?
Isn’t it a viable thought, that ntsc is the region and trinitron the tv-model?
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It doesn’t sum up in this specific case for accuracy’s sake. 
The ntsc LUT colors apply to an earlier standard with different phosphors, similar to the ntsc colors shader (found in the misc folder).
It should work better with the P22 color profile, trinitron LUT and color temperature set to ‘coolish’. The trinitron color profile is also a good option as a standalone choice.
Ofc. you can get the most accurate result if you set/calibrate your primary display to sRGB and don’t approximate your display gamut within the shader.
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This. Using the color profiles (in my case Adobe RGB) prevents me from having to inject with Reshade the calibrated LUT for my PC monitors to look like SRGB. These are an approximation for the display standard. One of my monitors is 98% AdobeRGB so I have no qualms about using it (they are also calibrated). The other is 78% so my expectations are lower. My OLED is 98% Display P-3 so I also feel comfortable selecting that option since it too is calibrated.
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@guest.r, there are green and magenta in your Mask 5.
And the RGB is seen in Mask 2 (it’s Aperture Grille too, isn’t it?).
Is the Mask 5 displaying correct?
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Yeah, mask 5 is the trinitron version of the mask 0 (subpixel correct spacing, mask width of 2). Mask 2 is the lottes rgb mask (mask width of 3).
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Okay thanks for the knowledge. I have no clue about calibrating a monitor hahaha. Just a macbook air 13 2013 monitor. I think I have to read in a bit about color spaces and srgb…
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Haven’t been seriously playing around with Guest Advanced for a while and did not know it has become so powerful!! I just spent a couple of hours and made a preset that looks pretty exciting (to me personally obviously) and I almost know for sure that I can make it look really really good, if I want to spend the rest of the week (
) tweaking and trying out all the combinations of different settings like I did with some of my custom presets that I use religiously.
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Hey @guest.r I was wondering would it be possible to add the “Rolling Scanlines” parameter from the newpixie-crt shader to your shader? I’m seeing the guys talk a lot about it in the show off your shaders thread and that made me curious. If for nothing else it’ll be just an extra aesthetic added to the best shader on Retroarch. Gives off a nice nostalgic organic kind of vibe and I would love to add that feature to my guest shader preset.
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@HyperspaceMadness kind of did this already with his excellent HSM Mega Bezel Reflection Shader which is based on the CRT Guest Advanced Shader with some further customization.
You can get it here:
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It’s up to guest what to add or not, obviously, but I think it’s nice for different shaders to have different effects. Not to mention that rolling scanlines aren’t really a thing, AFAIK. I’ve only ever seen one display that might have had them, and I think that was really just an optical illusion caused by interlacing/field-swapping.
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My shader presets which I originally started by extensively tweaking the New pixie clone preset has a very measured amount of deconvergence noise in them to achieve that same analog, organic feeling to the image that you might be describing. My most recent updates did away with the rolling scanlines and fake scanlines in favour of more accurately generated and aligned scanlines but the overall vibe and feeling is still there. They’re not too overly sharp and “digital” and they’re not too soft and blurry in my opinion.
I have several videos and screenshots but they are based on the version with the rolling and fake scanlines and need to be updated. I invite you to try them out and see if that’s the type of look you’re seeking. I have a feeling that you might like them.
My post also has several notes to help you get even more out of the presets by suggesting different core options and stuff like that. It might be worth a read.
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The only time I saw that rolling scanlines effect was when watching TV and there was another TV on screen. And I think it happens due to camera not matching refresh of the other TV (29/24 vs 60/50hz)
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