can i add these values to the retroarch.cfg so they load for each game, like a shader?
save the settings via the menu
Thanks for trying it out and glad it works. I’m curious though why you’ve changed the overlay scale? That shouldn’t be set to 1.7. if you’re doing that then something is wrong as you’re basically telling it to scale the image to 1.7 time it’s size and as the overlay is exactly 1280×720 it should be set to 1 (no scaling).
Could you get some screenshots of an emulator running with the scanlines so that I can try and see what’s going on? It should be hotkey plus f8 on the keyboard (right shift is hotkey on the keyboard). If you could get one with the overlay scale set at 1 and one with the overlay scale set at 1.7 that would be great. (also set the opacity to 0.6 so I can see it clearly).
The screenshot will be saved in /home/pi/.config/retroarch/screenshots/