Getting the best N64 experience on a Pi 4
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I look forward to seeing that.
Does anyone know why the graphics on worms: Armageddon look so blurry on the N64 compared to say the Ps1.
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Is it ever worth using the 16:9 screen resolutions and the two settings for it? Do any games actually make use of it?
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@George-Spiggott said in Getting the best N64 experience on a Pi 4:
Is it ever worth using the 16:9 screen resolutions and the two settings for it? Do any games actually make use of it?
some games had anamorphic widescreen modes, so i guess it would be worth it for that: https://www.racketboy.com/forum/viewtopic.php?f=2&t=41744
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@quicksilver said in Good news regarding tearing and low EmulationStation performance on Pi 4:
@George-Spiggott Without getting too far off topic. Try mupen64plus-gliden64. It seems to run full speed for me. Generally it is faster than lr-mupen64plus-next.
Thanks @quicksilver. I hope you don't mind me replying here instead. I tried mupen64plus-gliden64 but the game seems sluggish and the sound is distorted. IMO lr-mupen64plus-next definitely plays SotE better as only the sound is affected.
As an aside I tried running SotE with the CPU overclock turned off. It made no difference to the game speed whatsoever.
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@George-Spiggott Yes this seems a better place for this conversation. It plays full speed for me with gliden64. Can you post the contents of /opt/retropie/configs/n64/mupen64plus.cfg and /opt/retropie/configs/all/autoconf.cfg? Perhaps our settings are different?
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Thanks @quicksilver. Here they are.
mupen64plus.cfg
<iframe src="https://pastebin.com/embed_iframe/Ph5wcRp4" style="border:none;width:100%"></iframe>
[edit] new link
autoconf.cfg
"8bitdo_hack = "0"
es_swap_a_b = "0"
disable = "0"
mupen64plus_audio = "0"
mupen64plus_compatibility_check = "0"
mupen64plus_hotkeys = "1"
mupen64plus_texture_packs = "1"" -
@George-Spiggott are you sure that is your mupen64plus.cfg? It's not fully populated. That looks more like mupen64plus.cfg.rp-dist.
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@quicksilver Oops yes it is. Fixed the link above.
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In the audio-sdl section change resample to "trivial" that should help with the audio issues.
Are you running in 4k mode?
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@quicksilver Will check the audio settings. TV is 1080p. Mupen is running in 320x240.
I don't understand why the audio cuts out when there is so much spare processing time. I assumed that audio is processed by the CPU.
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@George-Spiggott said in Getting the best N64 experience on a Pi 4:
@quicksilver Will check the audio settings. TV is 1080p. Mupen is running in 320x240.
I don't understand why the audio cuts out when there is so much spare processing time. I assumed that audio is processed by the CPU.
if the gpu can't deliver frames in time, it bottlenecks everything else. cpu power is mostly irrelevant with n64 on raspberry pi. even the rpi 2 has enough grunt most of the time.
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@quicksilver I went for a variation on your suggestion, I had a look at the audio settings for lr-mupen64plus-next and increased Audio Latency (ms) to 512 (from 64). It seems to have smoothed out most of the audio issues I have. The game still doesn't run at 100% speed but it is well playable.
I have also pretty much completely turned off my CPU overclock. I am tempted to see how far I can push the GPU to iron out the frame rate issues on N64 and PSP.
@dankcushions thanks for the explanation.
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@dankcushions I found a list of the games that dk benefit from 16:9. There seems to be about half a dozen of them.
The only one I have is Perfect Dark. It will take advantage of 16:9 adjusted. You have to have a fairly sharp eye to notice the difference e.g the moon is actually a cirle at the start of level 1. Nice to find a game with that option though.
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Does anyone know how to gwt Mario Cart 64 to run in 640x480 without the graphics breaking up on the character select screen?
Currently running:
Retropie 4.7 on a Pi 4B 4GB (Overclock Settings: CPU 2100, GPU (V3D) 850) - On hiatus
Emulationstation on a NUC 8 (i5, Windows 11, 16GB RAM) -
@George-Spiggott can you post a screenshot? Often times there are issues with 2D objects having lines in them when you increase the resolution beyond the original render resolution of that system. This happens with a number of emulators, not just mupen64plus.
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@George-Spiggott i belive:
# Render 2D texrects in native resolution to fix misalignment between parts of 2D image. (0=Off, 1=Optimized, 2=Unoptimized) EnableNativeResTexrects = 0to
# Render 2D texrects in native resolution to fix misalignment between parts of 2D image. (0=Off, 1=Optimized, 2=Unoptimized) EnableNativeResTexrects = 1in /opt/retropie/configs/n64/mupen64plus.cfg
or the equiv core option in lr-mupen.
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@dankcushions I had not noticed that option before. Do you know if there a performance hit for using it?
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@quicksilver there presumably will be otherwise it would default on.
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@dankcushions Thanks that solved it. There were a few N64 games that ran well on a stock Pi3B+ I think most of these will be good candidates to run at 640x480 on a Pi4. So far Mario Cart 64 and Donkey Kong Racing are the only ones I have tried. I also managed to fix my Worms Armageddon problem by running the game in Mupen64plus in 640x480.
This is the graphical error in Mario Cart 64 so people know what to look out for.
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Hello together,
First of all, thanks for the efforts to bring a first release out for the RPI4.
I tried to run Goldeneye and Pilotwings 64 on first official RPI4 release.
Currently, I got weaker performance as on my RPI3 with old rice core for these two titles.Pilotwings rans nearly at 100 per cent on RPI3.
On RPI4, i tried all cores. At most of the time it stuckes and there are artefacts and glitches on the screen.Goldeneye rans also i would say only 70 per cent of speed.
Addititional, I tried also lakka in the past on RPI4, with nearly same behaviour.
I guess the emulator cores and/or gpu drivers are currently not very optimized so far.I will ask some questions in the round, which I currently do not know, maybe one of you have here already more background info:
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Are there any improvements possible, what could be said by today?
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Would a coming vulkan gpu driver help for better N64 performance?
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is there any ongoing optimization for the N64 emulators/cores, especially for the RPI4?
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