Hey there,
Wish everyone here all the best for 26! This week I realised using Gnome on Linux there’s a built in scaler named “Fractionnal Scaling” in the settings that was messing things up when I used 4K.
It’s a fast scaler I started to use when I tried Wayland and had issues with GTK UIs. I left this naughty boy on and forgot it existed until recently when I tried to investigate issues I had with OBS and my 4K screenshots being way too soft in Lutris.
Turns out this fractional scaling, despite being set to 200% integer in 4K, was the culprit all along.
And I’ve been living in a 4K lie… Lesson’s learned, should always read the fine prints… XD
But the good thing is, now I got to go back and tweak all those shaders once again. And this time I’ll stuck my nose on the screen for good! At least I dont think that scaler was affecting Retroarch, which has its own fullscreen res setting.
So I’m back today with Heroes 3 Complete Edition, upscaled from 1066x600 to 4K with Scale2x and bilinear sharper from the great HD mod, gamescope/FSR and CRT-Guest-HD on top. Here’s the FX file if you want a go at it with Reshade or VKBasalt.
And here’s a close up showcasing the scalers, the mask and thin scanlines.