what emulator can play ps1 games at 1080p? doesnt it just upscale them?
Upscaling happens when a lower resolution image is stretched to fit the native resolution of the connection medium or the final display. There will be some filtering possibly added so it's not as nasty as just taking a 640*480 image in paint and stretching it out to fit your monitor.
EDIT: For example, Battlefield 3 on the PS3 renders at only 1280x704 internally, but it 'upscales it' to fit the entire screen on your 1080p capable TV.
In contrast, any and all emulators have the capability of *internally rendering* at any specified resolution. It's the equivalent of going into a PC game and changing the res.
This is Sonic Colors (for the Wii) emulated in Dolphin at 1080p with 4x AA and 16xAF (but downscaled for the jpg.)
Of course, on the Wii itself, it looks nothing close to that.
A lot of this generation's games, even the Wii's, have graphical assets that would look tremendously better with the right filtering and even more so if rendered at the native resolution of the common television (1080p). If they released BC compatibility in any console of the next generation which the capability of playing games from a previous console in HD, I'd be all over it.
Of course, they'd never do it, because you can bet there will be an HD REMAKE EXTRA UBER EDITION of Battlefield 3 remade on the PS4 that will use 1080p as a selling point.
People bitching about BC are just old geezers living in the past. Keep your PS1 if you want to play PS1 games.
The same people complain about how ugly the next generation of cars look, or use the phrase "back in my day...." to explain how everything used to be better.
The rest of us buy new consoles to enjoy new games.
Gee, thanks for your two cents...
Although back in my day, you'd only have to have given one cent.