(08-29-2015, 02:03 AM)masterotaku Wrote: I wonder if it would be better trying to improve the widescreen hack to make it just render more geometry at the sides and not stretch anything.
It's possible for some games already with the existing widescreen hack. It depends on how the interface is rendered, I'm sure. For example, if something just renders at a specific coordinate, then it will scale nicely with a widescreen hack. However, if something renders at, say, a fixed 20% from the left, then it will be stretched with a widescreen hack.
If you just use Dolphin's basic widescreen hack, you'll see that some games like Super Smash Bros. Melee and Kirby Air Ride maintain a proper UI aspect ratio in widescreen. Conversely, games like The Wind Waker do not.
Changing the behaviour may or may not be too difficult in theory, but it would be tedious nonetheless. I'm not the kind of person that's ever done ROM/ISO hacking, though, so I don't know just how difficult it would be to change a generated value to a fixed constant.