4k Scanline shader which allows non-integer scaling

[buddha2525]

Here's something I made. It allows scanlines that appear to line up by using variable width in both the vertical and horizontal. Sort of a hybrid between a Sony BVM and NEC Chromaclear. The intent isn't to mimmick a CRT but what I think looks good on digital and also reduces motion blur when on a digital.

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[fernan1234]

Looks cool! Yes, not so much like a CRT but more like a low res LCD like a GBA or PSP, which can also make old graphics look good by cutting through the hard edge pixels.

[buddha2525]

Looks cool! Yes, not so much like a CRT but more like a low res LCD like a GBA or PSP, which can also make old graphics look good by cutting through the hard edge pixels.

That's what I was going for. What a projector can do by deconvergance along with gaussian blur. It looks really good on my C2 oled. There's also overlap to each edge of the pixel (sort of a feathering effect) using special bilnear filter which blends uneven scaling that greatly reduces jitter so the pixels don't wobble.

Here's a zoom in. Notice how the scanlines are very uneven? Yet there's the illusion all the lines have even "black" scanlines.

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[buddha2525]

I was playing with the settings and got it to work with 1600p native resolution of my macbook.

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[neorichieb1971]

It looks kinda neat. Not sure I would like it on a big display though, but on a smaller display it could look well nice.

[buddha2525]

It looks kinda neat. Not sure I would like it on a big display though, but on a smaller display it could look well nice.

Then you increase the sampling rate as the resolution increases. This is at 4k optimized for my 42" c2 OLED. I know it's a bit dark, but there's an option for tone mapping which increases brightness so it looks real good.. 42" is equivalent to a 34" 4:3. That's bigger than the biggest real NEO-GEO arcade cab at which I thinks tops out at 27" for the Japanese Candy cabs.

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[Steven]

You'll almost never see a Neo Geo in a Neo Geo cabinet in Japan. After living here for over 10 years, I have only ever seen them in cabinets with 29 inch monitors like the (New) Astro City, Blast City, Egret II, and similar cabinets from Sega and Taito. I have not once seen an SNK cabinet in an actual arcade.

BTW I'd probably put those in spoilers tags given their sizes.

[buddha2525]

You'll almost never see a Neo Geo in a Neo Geo cabinet in Japan. After living here for over 10 years, I have only ever seen them in cabinets with 29 inch monitors like the (New) Astro City, Blast City, Egret II, and similar cabinets from Sega and Taito. I have not once seen an SNK cabinet in an actual arcade.

BTW I'd probably put those in spoilers tags given their sizes.

Here's at 11x. This looks even better the higher you upscale.

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[cfx]

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[Taiyaki]

I'm in the same boat. I gave it my all on PVM/BVM's and didn't like the look. I prefer the look of consumer CRT's where the scanlines aren't overly prominent. Still this is a very nice effort.

[Konsolkongen]

For me I think it is the vertical black lines that are too exposed. I don't remember them being that noticeable on a real BVM/PVM. In your last shot I find it difficult to easily distinguish Charlie's upper body against the background, the colors look undersaturated to me.

I think the shader looks nice otherwise

[buddha2525]

For me I think it is the vertical black lines that are too exposed. I don't remember them being that noticeable on a real BVM/PVM. In your last shot I find it difficult to easily distinguish Charlie's upper body against the background, the colors look undersaturated to me.

I think the shader looks nice otherwise

I set back the brightness and mask effect but kept the same 11x upscale. You then give up the 3d effect. I'll need to add a saturation feature. When you increase the mask effect the saturation decreases. My C2 goes past regular color gamut so I can adjust colors you can't see which are being shown on my TV. I wish I could show you how it looks on the C2 but the contrast and color volume is just too much for any camera to capture.

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[buddha2525]

I don't remember them being that noticeable on a real BVM/PVM.

You can think of it as my Panasonic ZT60 plasma and a PVM had a baby.

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[Steven]

My favourite is actually whatever the thing on my arcade monitor is.

[buddha2525]

My favourite is actually whatever the thing on my arcade monitor is.

The problem is, how do you get one? If you do get lucky, they want a ridiculous amount for something that may die who knows when.

My favorite is the B&O MX8000. Here's what it looks like by me tweaking the shader for that particular TV. But the size goes from 33.8" to 30".

Even though this looks real nice you lose a lot of the screen.

You can't make a shader look 100% like your favorite CRT without doing integer scaling. That's what I'm trying to fix.

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[mycophobia]

gotta up the gamma on them shits brother. too dark

[dojima]

Very nice work as always, buddha. You gotta release these somewhere some time.

[buddha2525]

gotta up the gamma on them shits brother. too dark

They look fine on my LG OLED C2. I use HDR, tone mapping, and black level/ highlight enhancement. The tv does a better job with its AI than increasing the gamma. Otherwise during fade to black the screen still glows, while blacks crush and highlights get blown.

If someone else has a C2, I can post the settings.

[buddha2525]

Very nice work as always, buddha. You gotta release these somewhere some time.

I'd like to, but the code is so messy and unoptimized. I need to find someone to help with that.

[buddha2525]

Here is more of a VGA mode ie sort of Commodore 1084s.

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[buddha2525]

Snes @1440p

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[buddha2525]

I improved the shader to work better in HDR and the tone mapping feature of a C2 @4K.

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[cfx]

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[buddha2525]

Your last two remind me of a consumer Trinitron, nice look.

Disclaimer: I haven't actually seen a consumer Trinitron in many years, so my impressions might be different than reality.

Either way, those two look good to me.

Thanks. I was going for the NEC/Mitsubishi CromaClear look.

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[buddha2525]

This is from the Sonkun shader. I was playing around with it in ways they probable didn't intend. But this actually looks a lot like the old arcade CRTs used in games like Yie Ar Kung Fu.

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