I understand perfectly what the interpolation algorithms do.
What you don't understand is that taking the output from the game engine and applying post-processing to bump up the pixel count will deteriorate image quality. Image resizing algorythms guesses are aproximate - that's why upscaled DVD's don't look near as good as proper 1080p footage.
If NG2 game engine can only produce 585 lines, filling up the gap with interpolated lines will not look as good as if the game was rendered in 720. Otherwise you are claiming that the upscaling can produce a more accurate guess for pixels than the game own engine and I'd have a hard time believing that.
Current-gen game collection uploaded on the profile, full of win and good games; also most of my PC games. Lucasfilm Games/LucasArts 1982-2008 (Requiescat In Pace).
