Shader causes vertical lines on CRT monitor

The lines only appear on this shader, everything else, even the original Hyllian shader looks normal.

CRT: https://i.sli.mg/9HNSw3.jpg https://i.sli.mg/s2XRFA.jpg https://i.sli.mg/zUxiEK.jpg

I already tried integer scaling and changing the aspect ratio. Any ideas?

it must be something with the mask of the shader. Since it is a CRT monitor i think you should switch off the mask.

Yes^^, the masks are usually designed to be dependent on LCD subpixel behavior. CRTs (and even some other varieties of LCDs/flat-panels) act differently and can cause that sort of problem.

Thanks for the answers, I think I’ll keep using the shader. The lines are only visible if I get really close to the screen, and overall it looks really good, better than anything i’ve tried on my 1080p LCD.

You can still use the shader just without the mask. Go into the shader parameters and look for “CRT - Phosphor ON/OFF” and change it to 0.0 to toggle the mask effect off and see if this gets you fixed up. If so, open the CRT.cgp file in a text editor and change line 48 from: PHOSPHOR = “1.000000” to PHOSPHOR = “0.000000”