alt Hacker NewsVery cool, especially the accuracy improvements. But is GPU really necessary? SNES is so old I wonder why you couldn't get away with CPU-only. Even if GPU is more efficient, is it worth the headache of supporting way more hardware combinations?
Replies
> SNES is so old I wonder why you couldn't get away with CPU-only.
Depends what level of accuracy you want. higan (bsnes) does cycle-accurate SNES emulation on the CPU (and has for more than a decade) so that's definitely feasible.
If you want accuracy beyond that things get dicey. AFAIK when you get down to transistor level emulation, you can do pong but MetalNES runs nowhere near real time, so the limit for that is somewhere between those two systems.
> is it worth the headache of supporting way more hardware combinations?
no.
Probably is one of those of "because its fun" type of projects.
The visual enhancements the emulator is capable of doing (high-res Mode 7, texture replacements, shaders, that sort of thing) wouldn't run well with software rendering. The emulator uses Unity so they don't have to do all the low-level GPU support work themselves.