/vr/ - Retro Games

>>5753416

Shaders are an attempt to adapt an image intended for a CRT display at SD resolutions to a digital display at HD resolutions. They are fundamentally different. Typically the image is scaled 4x or more, which causes pixilation. I am rather annoyed that we have a whole generation of people who think that old SD games were pixilated. It's merely an artifact of using digital displays.

Shaders attempt to deal with this pixilation. Rounding shaders try this by rounding edges, but as you can see they cause many, many false positives.

CRT Geom is another attempt, which I think does it better. It only looks good with some distance and in motion. Screenshots do not give a good enough impression. These CRT

https://github.com/libretro/common-shaders/blob/master/crt/crt-geom-flat.cg

Try it on an LCD/LED/etc tv in your living room, while sitting on the couch. It looks good in motion:

http://www.youtube.com/watch?v=Vr8zLbqAAFI

.cg shaders work in OpenEmu, and RetroArch. Technically they work in Snes9x too, but I've never gotten them to. I think you have to install other things.