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More rollback testing! I think I finally fixed the determinism issues for sure. This is an example gameplay at 1f latency at around 170 ping

11,765 views • 7 days ago •via X (Twitter)

20 Comments

Este's profile picture
Este7 days ago

Dude just casually making rollback for smash games that desperately needed it

👋🐝's profile picture
👋🐝7 days ago

So the community had backlash towards the AI, and now what: you're all sitting there copying the homework?

NyxTheShield's profile picture
NyxTheShield7 days ago

The homework doesn't work, it literally cannot rollback without performance issues, that we optimized with our old (3 years old) approach lol

Stache Twentyfour's profile picture
Stache Twentyfour7 days ago

This is incredible. Can the delay be adjusted?

NyxTheShield's profile picture
NyxTheShield7 days ago

Sadly adjusting your own delay just makes the experience better for your opponent and worse for you, after extensive testing the formula we will use is Ping/100*3 - Rollback Window (3f) < 133 ping = 1f < 166 = 2f < 200 = 3f Etc

Armonté's profile picture
Armonté6 days ago

@StacheTwenty4 3f rollback window.. it's unviable..

NyxTheShield's profile picture
NyxTheShield6 days ago

@StacheTwenty4 We support up to 10f actually, but the resim cost of Dolphin is too high, so 3f-4f is the max to be invisible, anything higher increases frame time 3f of invisible rollback window lets you play offline between anyone in the continental US, btw

Armonté's profile picture
Armonté6 days ago

@StacheTwenty4 10f through gekkonet doesnt really mean anything though because as you said anything above 3f depth is unviable dolphin resim is going to work without some sort of dirty page watch or jit hack, what strides have been made on actual resim inside brawl?

NyxTheShield's profile picture
NyxTheShield6 days ago

@StacheTwenty4 4f is enough for the current approach , we will take it for now, if we wanna bring further windows down the road we will explore ingame rollback, shaving 100-133 ping is excellent already

Armonté's profile picture
Armonté6 days ago

@StacheTwenty4 4f is good to hear it means we're almost there. I need to comb through the discord to try and assess and understand what's blocking us on the brawl resim side because it's not clear to me

NyxTheShield's profile picture
NyxTheShield6 days ago

@StacheTwenty4 Just frame rate, we can run the game at 350~ fps on fast forward

CG | CLM Punk's profile picture
CG | CLM Punk7 days ago

@blobertthebob Just curious what’s brawlback current hurdle? Or is it just polishing stuff up

Hamadarody's profile picture
Hamadarody6 days ago

will that work with any dolphin game? or just brawl?

Brandon Mondaca Nogueda's profile picture
Brandon Mondaca Nogueda7 days ago

Where can I download it ?

mimiPuffurPish's profile picture
mimiPuffurPish7 days ago

170 with one frame? surely you jest, lad

NyxTheShield's profile picture
NyxTheShield7 days ago

If you see closely it's jumpy and performance isn't perfect, but this is the absolute stress test lol

mimiPuffurPish's profile picture
mimiPuffurPish7 days ago

wow

petrolleeeum's profile picture
petrolleeeum6 days ago

1f latency at 170 ping is insane. When do you think it will be stable enough for a public release?

Dulop's profile picture
Dulop7 days ago

Goat

SAUZ's profile picture
SAUZ7 days ago

my mouth.... watering....

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