Dithering blending shader like Fusion's CVBS

[RetroGuy1980]

Hello, Dear Community!

I am a newbie and I need a shader like CVBS in Kega Fusion emulator that blends all adjacent horizontal pixels to eliminate dithering without CRT effects such as color bleeding. Mdapt and gdapt are not suitable, as they act selectively and produce artifacts.

That’s about what I would like to achieve:

[Cyber]

I have something like this. Will share with you when I get a chance.

What shader can give off the best effect of a Composite CRT TV?

Actually it doesn’t seem to load the CPU much. What it likes to feed on is GPU performance. I made a shader preset that does just this and does it well! I’ll post it later when I get a chance. I’ll also test and see how well it can scale down using the faster HSM Mega Bezel Reflection Shaders. Here it is: It still requires HSM Mega Bezel Reflection Shader! but it’s using a faster base preset. You can get it at the link I posted earlier but I’ll post it here to make it simpler. It goes up t…

You can also use this:

SGENPT-MIX - Sega Genesis Pseudo Transparency Mixer shader

Hello retrogamers, I’ve been working on a shader to specifically process those strange vertical lines (sometimes checkerboard patterns) used in sega genesis games to produce what’s called “pseudo transparencies”. As you know, there are already many solutions available, from ntsc composite and GTU shaders to advanced ones like gdapt/mdapt. It’s very hard to produce a perfect solution, so it’s good to have options. Each one of the solutions have its pros and cons. Some of them can degrade or blu…

My shader preset pack contains a Blending and Transparency preset that has MDAPT enabled using mode 3. All you have to do to get a similar effect to what you’re looking for is to switch MDAPT Mode to 0 which disables it and right below the MDAPT setting is the SGENPT-MIX Setting. You can enable that instead and voila!

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Also, take a look at this @RetroGuy1980. This is a relatively new solution that does an excellent job!

Custom preset para Blargg NTSC Mega Drive video compuesto

This filter is CPU based, so you can apply GPU based shaders such of slang or opengl glsp. To do this first set this filter in: settings > vídeo > vídeo filter > (navigate to fólder where is downloaded) Then go to: Quick menú > shaders > load preset > (Slang/CRT/…) I think about this like the first filter is about signal and the other to emulate screen properties. Excuse my english level

You can use it in conjunction with my Shader Presets!

[Nesguy]

AFAIK, SGENPT-MIX still produces artifacts that might be undesirable.

Another option is to use the NTSC GDV shader and set the NTSC mode to custom (-1.00).

@RetroGuy1980