Fudoh wrote:The 720p image does not match my 1080p screen which is what I would expect. It's when I start trying to make it look perfect that I start messing things up, especially when going to a different game.
by "match" you mean fill ? Good scanlines require integer scaling. Most systems output 224 lines per frame, so you only get 672 active lines leaving a few lines unused on top and bottom. With 1080p (with profiles) you can use 4x integer scaling which has the same effect of 5x integer scaling which cuts off some more lines. Scanlines look best at 720p though, followed by 4x in 1080p. They don't look this hot in 1080p 5x.
I am still testing, but I have noticed a few things. For example, going through some n64 games, the ones that boot up right away tend to be pretty close to each other in video output/position. However the N64 games that are not in great shape and do not always boot up on the first try tend to deviate more from the expected output (display correct image but more off center). I was initially thinking this might be the way some games work, but now am leaning towards blaming the condition of the cartridges in question.
unlikely. Can you name an example ? Maybe these games are running in 480i instead.
Correct. They don't fill the screen, but that is not an issue as I find the image to be pretty damn impressive at 720p 4:3 ratio with scanlines.
Regarding the N64 games, I tested the following games:
Ogre Battle 64: good
Hybrid Heaven: good
Quest 64: good
Star Wars Rogue Squadron: good
Mischief Makers: image off center
Snowboard Kids: image off center
San Francisco Rush: image off center
Those top 4 games output images that are pretty close to each other in terms of position and being properly centered.
The bottom 3 were outputting images that were off center by different amounts/positions. I struggled to get each of these games to run (as can happen with cartridges over time).
The saturn and ps1 games I have tested look pretty good so far.