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[ReZ]

I know this emu is full speed already and all but i was wondering about smoothing... can this be done on GP32 or is it a gfx option that gp32 doesnt have?

 

[Tobriand]

The problem is lack of pixels, which kinda makes it awkward...
There's 3 options;
a) Stretch and be damned - who cares about distortions (What's done atm)
B) Filter it with Anti-aliasing (very very CPU intensive; if emulation ever got down to 66MHz wthout filtering, it might be doable at a random guess, but the remaining 66MHz left (to clock it back up to 133) would be the least it'd need)
c) Stretch but clip the edges (Check out GPVGP - it's got this option; usually leaves you without a status bar, but other than that looks fine).