I’m not sure what you’re replying to. . anyway, I don’t have a 4k display to test your settings.
Whats going on here? 
Just some new images 
3 Likes
Might as well drop some pics I took some time ago from my 15":
Usually, the mask is way more prominent than scanlines, but they’re a bit better to see in this shot:
5 Likes
2 Likes
Going to get rid of my 17" VGA monitor. Instead, I got a CRT TV of about the same size, one I indirectly mentioned in the composite thread: Blaupunkt PM45-15 VT (Grundig chassis, Philips tube, from around 1995). Big portables seem to went out of fashion as time went on (at least in Europe), the 14" inch ones are all over the place. Somebody was giving this unit away for free but still was willing to ship it, so I only had to pay for that.
Testing the composite input I was kinda shocked, contrast, brightness and blur were making it look like a mess. I didn’t have a remote yet, so no adjustments possible at first. The RGB connection looked considerable better, through software (shader) adjustments) it basically suggested that it was still usable. Very soft, but there were still noticable scanlines. Somewhat “paint” like. Interesting look, but for an RGB picture a bit too much lacking in crispness imho. I went ahead and got a remote, watched some videos and read about adjustments through the internal FOCUS and SCREEN knobs. (and CRT safety. these adjustments are relatively trivial, but working with the internals is still dangerous.). After doing these adjustments things became much better, composite was also fixed.
Encouraged by this I also opened up my Telefunken which is about 20-21" in size, but didn’t show any scanlines except in very dark areas. My crappy phone camera can’t quite convey it, but here are older photos:
Not quite as blurry in reality, but it looked somewhat dull. After opening it up and adjustments, also notably better.
And that’s today CRT story 
8 Likes
I absolutely love those metal slug shots man! I been trying to find a crt shader that looks like that, if it exists that is haha
2 Likes
If you take that shot and resize to 1080/1440p level with a lanczos filter, it’s almost the same pattern with lottes 1 (but lottes 1 subpixel RGB is wrong for LCDs, it creates a Magenta Green pattern with an offset, instead of R-G-B so in the end it doesn’t look anywhere near this). Of course you would need a 4K/8K to have all the details.
I’d love to try and recreate those screens in a shader. If you have any time and the desire could you follow the first post here?
2 Likes
I have a Bang & Olufsen MX8000 preset that might get close but it’s off in terms of colours. I intend to improve this situation with the grade shader and LUTs.
2 Likes
Here resized to 1440p level (one game pixel is 6x6 on LCD and four 3x3 pixels) with Lanczos. In theory this is the best you can get at 1440
2 Likes
I already had a look at it before I took the shots of Sonic here, and fiddled a bit around, but the phone I’m using is simply too old and the camera not good enough to fit the requirements, you can’t expect any better results than what you’re seeing there with different (also easier to photograph) TV. The Telefunken with the Metal Slug shots here makes a poor target anyway because there’s some color derivation between 50/60 modes even with RGB, I need to do more calibration with service mode eventually.
3 Likes
Fair enough - I was after much closer shots that was mostly all.
The zoom seems useless for this kind of thing on my end, but getting close, this might be better:
Maybe useful for something, maybe not. A bit farther away:
Possibly better Metal Slug shot:
7 Likes
Yes that close up shot at the top is exactly what I’m after - thanks! Ideally it would be straight on but I’m guessing you might be using an iPhone and it becomes overly bloomy because the ISO is too high. Anyway thanks for doing this the colours in this display are amazing!
2 Likes
That’s a standard Telefunken TV (a Thomson Brand) from around 2000 after adjustments with the FOCUS and SCREEN (G2) pots + what you can do with the remote/service mode.
2 Likes
This is basically a run of the mill slot mask CRT using RGB.
1 Like
Looks to be 1-2 triads per scanline (vertically), while the B&O photographed by @MajorPainTheCactus is more like 2-3 triads per scanline.
I’m not sure there’s a way to emulate this lower TVL at 4K using subpixel rendering methods, unfortunately 
1 Like