Retropie + 480p = Love
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Thank you @dankcushions!
But if I switch to 1080p wouldn't performance take a (little?) hit on Dreamcast for example or on N64 or some heavier MAME games? -
@segaages in theory a simple upscale to 1080p is a 'free' GPU operation, but there definitely situations where lowering resolution can help. for me, i'm keeping everything at 1080p and trying to identify and resolve the bottlenecks.
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Are you implying the GPU is little used by emulators in Retropie or not at all?
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@segaages not at all. i don't know of any significant performance gains on available emulators for pi3 or 4 that you can get from lowering the resolution if the emulator is set up correctly.
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That's good news for me, helps me understand how things work.
So speaking about resolution emulators performace are basically tied to their rendering resolution and not retropie resoution.
Gotta try 1080p. -
@segaages I must add, time spent on configuration tweaks aren’t of my interest right now.
So I’m happy with saving a lot of time when doing things a little different this time on the PI4:
- Setting 480p globally.
- Use USB 3 for roms.
These two actions take 4 minutes. I can’t even imagine how many hours I’ve spent on configuring 1080p trying to get emulators working well and fill the screen with output resolution and rendering resolution.
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I spent ages trying to force my setup out of 4K because the emulators ran too slow - and whatever I did the TV and the Pi kept negotiating 4K. Turned out in some of the boot config settings, the order of the values in the config file is quite important though I hadn't found anything that would tell me that, or which was the right order...
It has been a shame to drop out of 4K because the Retroarch UI looked very crisp and nice, including all the SVG collateral, and on 1080p it's merely "nice". But Fuse and the BBCB under MAME-Advmess ran too slowly at 4K...
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@dankcushions It seems that if you lower to 720p then you can use an overlay and the zfast CRT shader simultaneously without any stuttering. In 1080p it's really noticeable
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@sad_muso yeah i've heard that overlays tank performance for whatever reason. this feels like a retroarch bug to me, as a static overlay surely shouldn't be that much of a performance drain.
do you have an example overlay and file so I can see the issue and log it with them, please? -
scratch that, it's been logged! https://github.com/libretro/RetroArch/issues/10688
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