AI Learns Table Tennis

ragdoll overcomes it's spherical disabilities by violently shaking it's pelvis
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[@synt_axe]

AI: So what am I learning today? b2: Ping pong AI: Cool! b2: *pulls out taser and a bag of Doritos* AI: ...

[@gamering149]

and a unholy amount of jelly beans constantly being launched out of a tube

[@ehmaree]

@@gamering149 And each jellybean is $33

[@AndroCubed]

@@ehmaree it costs 400,000$ to feed this ai, for TWELVE seconds.

[@orangeduckduck2996]

He eats jelly beans like heavy shoots bullets.

[@cassidy_and_evan]

You forgot about the truck of gummy bears.

[@Sirpwnsalot]

ready to watch an intense table tennis match with someone spasming on the floor for the first 12 hours

[@jonasheikkila8204]

yeahs

[@Tarvitan]

Fr

[@toblobs]

Not much different from regular table tennis

[@Subscribe15387]

HOW IS THIS 8 HOURS AGO WHILE THE VID IS 1 HOUR ago

[@Astropine]

@@Subscribe15387 it was a premiere, you can comment before you watch it

[@dylandgs]

As an american I really appreciate you converting kilos to something I can understand

[@Anothergingerman]

🇺🇲🦅WHAT THE FUCK IS A KILOMETRE🦅🇺🇲

[@redstonemaster10]

@@Anothergingerman Obviously a kilometre is a milli-megametre, that is, a thousandth of a megameter.

[@nathantan4603]

@@Anothergingerman you mean kiloMETER

[@MachoDavid]

Hamburgur

[@tomohawk2177]

It’s normally the opposite way around in my experience

[@toblobs]

I seriously can't wait for an entire series of PPO based AI to win at the Olympics in 2078.

[@richmail]

That would actually be sick. Researchers VS researchers. Who can make the best table tennis AI?

[@SSukram_]

​@@richmailthere is a competition where researchers try to make an ai that mines diamonds in Minecraft, the fastest ai wins

[@richmail]

@@SSukram_ Whats the competetion called?

[@SSukram_]

@@richmail I don't remember rn, I'm not even sure if they do it anymore

[@Elemental...]

@@richmailthey have a competition like that in the game “Rocket League” where coders code bots and then make them face off.

[@thewiseoldfox]

If I had tennis balls instead of feet, I'd have a similar walking method

[@kittleo3614]

"You can think of me as an AI, trying endless amounts of random shit and occasionally learning something new." Story of my life.

[@Helios8170]

Isn't that just all types of intelligence?

[@necrolycoris]

i love the choice of NOT giving the AI flat feet, opting for spheres JUST to make it fun. Worth the 3 months wait 👍

[@bugzilla318]

The sphere feet are somehow easier to balance on, as explained in a previous video. I do not understand why or how this works, but it does make it look like they’re skating which is funny.

[@NopeNaw]

​@@bugzilla318Without knowing the exact intricate math, I would guess that the reason is that the feet would effectively require two additional joints and the AI would need to be trained to use like actual feet (otherwise it would just be tippy toeing around and be pretty much the same as the ball feet AIs). The ball feet are likely a case of "good enough" approximation of what humanoid locomotion would be, without needing to spend an inordinate amount of time replicating the functions of ligaments and tendons that allow us to use our feet the way we do.

[@puppergump4117]

@@NopeNaw Also, reducing the number of inputs and outputs speeds up the learning and thinking process by an order of magnitude, especially on non-specialized graphics cards or cpus.

[@no_dogs]

but most importantly, they kept fazing through the floor

[@hexagon8899]

give the AI a reward for longer distance strides, should help with more realistic walking

[@hansstrudel9614]

I think something more important would be giving them some actual feet

[@aljon5947]

yea i think actual feet would be better(imagine walking with wheels as foot) but i remember he said something about it in the bowling video being too hard for the AI

[@xxizcrilexlxx1505]

​@@aljon5947if i remember it was that is too complex for the IA and it made imposible the smallest leaps on the IA

[@randomblock1_]

If you had softballs for feet I'm pretty sure this is how you would walk too

[@Roflcopter4b]

Great. Um. How? The fuck is a stride? The AI knows location and angle.

[@redacted0_5]

Don’t know if you’ll read this, but the humour here lands a lot better than the previous video, so good job :)

[@b2stud]

tyty

[@DaRandomCommenter]

​@@b2studhehe, funni

[@aguyontheinternet8436]

the big funni

[@DaRandomCommenter]

@@aguyontheinternet8436 the bigger funni

[@derpyderp5396]

4:26 "the most active pelvis since wilt chamberlain" got me rolling💀

[@TabletPencil]

2 parts within an hour??? this is amazing, can't wait for next years upload

[@johngellare3507]

I love how you had to specify for it to stay on it's side of the table because it would 100% climb on the table and just violently shake around

[@alexisb3829]

I would like to see it without that specification lol

[@diamonddudeygo]

"Table tennis is harder to solve than bowling or being spider-man" this one starts strong

[@pedronunes3063]

6:29 This scream is so cute

[@Moonlight_Drawing]

Just a suggestion, you should add a timer that shows the real time hours to the sections where the ai learns

[@b2stud]

good idea, ill be sure to implement it in the next video

[@bazem]

1:41 - Measures the height in feet Makes fun of North Americans for not using kilos

[@TunaBear64]

Worst of all, it used Kilos, Kilos is basically mean "a thousand" A thousand what? Use KiloGRAMS next time.

[@nullmeasure6155]

I started chuckling when the continuous stream of rainbow candy started going into your guy's mouth and nearly stopped breathing when the taser animation came in. All I can say is so true.

[@jespervanbommel]

i love the accurate simulation of the magnus effect at 5:11

[@foxlive420yes9]

As a American I do appreciate how he translates kilos into hamburgers it’s much needed for me to understand it

[@Pain.enjoyer]

How are there no reply’s on this amazing comment

[@archaniac529]

did the math on this actually. if we're going off of McDonald's burgers, 85kg is about 405 hamburgers

[@stephenaulin8298]

Xd

[@jimibunni]

I know you have hundreds of thousands of subscribers, but i still dont think you have nearly what you deserve. Your content is so expertly made, being funny, entertaining, and informative all in one. Keep making such great content!

[@b2stud]

Thank you so much! I will do my best!

[@gamermanh]

Goddamn hilarious to watch that AI struggle with the spherical feet you gave it, wow Does perfectly well standing in a small area but the second it needed to move any kind of distance without control over the arms (which did practically ALL of the balancing) it flopped over

[@henningerhenningstone691]

man this video is just perfect... the consistent art-style, the explanation and animations to go along, the humour. Absolutely bloody brilliant

[@ataready8810]

Fellow Aussie here, I'm proud that you've gone from one successful video on BTD6 AI to one banger after another. My favourite so far has to be the cannons that never miss video because of the personality in the scenarios. Keep it up man, your animation skills and video production are excellent.

[@thatweirdphoneguystickman5596]

As an American, I'm so glad he converted kilos to cheeseburgers, otherwise I wouldn't be able to know how many Kilos he weighed.

[@DeuxisWasTaken]

I think the jerky small movement is because you punish distance travelled by limb, not acceleration which is what actually wastes energy - a single big movement of a leg is less wasteful than constantly jerking it back-and-forth and having to apply a lot of force to achieve that acceleration. Nice video anyway, subbed.

[@thesnailmachine7181]

My partner and I have formed a strong emotional attachment to this little guy. We call him Gregor and we just want him to be happy with his work.

[@gr1ffyyn351]

I love this channel, you’re the reason I got into coding, so glad you’re back!

[@sodancookie2905]

This is one of the only channels that I genuinely get excited every upload. Keep up the great content!!

[@forlape]

mans going thru the entire wii catalog gotta do boxing next

[@spainwithoutthes101]

Why is this a dhar mann title without the instantly regrets it

[@diegodoesnothing6092]

AI is forced to play table tennis, what happens next is unbelievable- b2 studios

[@biscade]

is_shocking

[@yeturs69420]

That is such a good idea for backers, making a little background character for videos.

[@Clop]

you're now one of my favorite creators. i love stuff like this it's fun. keep doing you man, you're awesome.

[@MrMeoow91]

I just could not stop laughing at the silly movement by the AI

[@lpsp442]

b2, yours is the first youtube channel I think I've ever encountered (certainly the first AI channel) to consistently make pause the video because I'm *creased* up laughing. The witch's spell got me in the bowling vid, and now.... Will Chamberlain, eat your heart out! 🐟❤

[@BroudbrunMusicMerge]

"Smuggling extra information into its neck" is my new favorite context-free phrase

[@widojay2048]

I think these kind of 3D rendering videos are awesome. You’ve built a whole world a character and you animate it

[@Yippee-sk1fm]

1:47 If four burgers equals 1 pound then 773 divided by 4 would be 193. But 85 kg equals 187 lbs. so there’s a 6 pound difference. So technically 6 x 4 would be 24 then 773 - 24 = 749. There should only be 749 burgers as 749 divided by four is 187.

[@Cutielove9770]

The dedication to do something this unnecessary is voila 😂😂😂😂

[@GDnobrain]

GG you passed your maths test! (Not making fun)

[@Izayoink_Saccuy]

People say ai will take over the world and yet they can't even play ping pong

[@Unknown-yt2hb]

This was really well edited.

[@SkyBreaker321]

YOU FINALLY POSTED 😍 I love these videos bro, much love

[@Wizzkidwas]

As a left handed person this video makes me feel left out lol Also 6:29 Love their yelling

[@gaopinghu7332]

It makes you feel "left" out? Lol.

[@Wizzkidwas]

@@gaopinghu7332 Somehow I've never actually heard that one before, I'm impressed!

[@israelt.hernandez8612]

6:24 ._. HeadShot (diying fish noises)

[@luketrzeciak6967]

Wow man, super entertaining. The math, programming, graphic design. Everything man, perfect!

[@TheInfamousLegend27]

"trying endless amounts of random shit and occasionally learning something useful" i've never felt so understood in a programming video lmao

[@Splarkszter]

amazing work, interesting, educative and extremely funny. You skills are extemely good.

[@b2stud]

Thank you :)

[@BrakeCoach]

0:58 bro looks like hes dancing gangnam style

[@inoobboi5438]

i have never been so entertained by physics explained by ragdolls and fish in my life

[@joshuapatrick682]

I think this raises a bigger question about what constitutes programming? Because you aren’t actually programming anything, you’re just defining the parameters an algorithm used to program something.

[@scoper7897]

love this AI videos man. keep it up

[@GlitchGames_A]

I feared the fast limb movement punishment would make the ragdoll walk by taking rapid, short steps. It did end up doing that, but looking at how the face is moving, maybe it's not that big of a deal

[@djentlover]

Why are these my absolute favorite videos in a long time

[@CliffThePerson]

1:48 thank you for giving measurements that we will understand.

[@The-EJ-Factor]

To make it more human you need to teach it what would and wouldn’t be energy efficient. Which is harder to do than it sounds.

[@dogethefirst1]

3:10 i named that 1 guy watching him "Gerald" unless you already named

[@brennansmith4670]

These videos are hilarious, your channel is so underrated

[@ThatOneHacker305]

“The ai will have to have full control of its right hand to succeed” good luck

[@AlexJoneses]

This is going to be epic

[@alaggs7279]

next: AI learns competitive yugioh

[@SRHtheHedgehog]

I cannot begin to tell you how much i love these videos i cry laughing every time i love them so much

[@shaurmiath6719]

I like that it doesn't so much "walk" as kick the ground over and over as quickly as it can.

[@near5148]

It looks goofy as hell

[@creepyscaryskeletons3034]

Nobody: That one person in the stands: 👀3:50

[@OmniSync]

thats an ai toddler

[@multiarray2320]

why are there two parts instead of just one video?

[@b2stud]

cha-ching

[@OhioanOrganDonor]

@@b2stud secure that bag, b2. you deserve it.

[@disassembly4147]

​@@b2studshut ub

[@luditheuber]

​@@b2studheheheheeeeeeeeeeeeee

[@Wacky0zack]

Half of the impressions for this video must have been used on me. I see this video everywhere I go and all the time. I didn't look like a bad video but just a video I wasn't in the mood for. I finally caved and clicked on it. I enjoyed it

[@shayaharon5015]

When b2 uploads its a good day

[@Xizilqou]

you should use stencil shadows for the lighting in your videos instead of shadow mapping, shadow mapping is noticeably blurry and low res and sometimes leads to the "peter panning" shadow bias effect at 0:29 where when the ragdolls fall you can see the shadows disappear into the ground. Stencil shadows, often called "shadow volumes," are based on the actual geometry of the meshes instead of a camera image taken from the light itself and as a result have none of these problems. There's probably a plugin for these in whatever game engine you're using, it'll look so much better.

[@Xizilqou]

This video has an example of stencil shadows in the same sort of indoor lighting style that you often choose to do youtu .be/CCIwiC37kks

[@HappyGingerWolf]

If the AI is sneaking data into the neck movements, why not just give it a stored value it can edit? Wouldn't that achieve the same result without the jittering?

[@isaacgreen9495]

Incredible! I love the fish interactions XD

[@waffleclan1831]

Adding the square green box made it look like he's fighting an unruly weasel

[@nikkiofthevalley]

5:17 Hey, it's a SUVAT equation! Didn't expect that, I would've expected a Euler integration with Newton's laws of motion, which is the usual way people do this.

[@natbia5362]

🤓

[@nikkiofthevalley]

@@natbia5362 You are literally watching someone make an AI that plays table tennis. The fuck are you judging me for?

[@OmniSync]

​@@natbia5362🥸

[@Mahonokage]

I'm curious to see how an AI would handle an "energy consumption" problem. Seeing them walk with as many taps and movements as possible in the arms and head is funny, but also only possible in a state of infinite potential energy. It could force the AI to learn how to use assumed positioning with bigger (more natural looking) movements, in other words, kinda like rollback netcode in online games

[@jdhgeui2838]

This is such an amazing channel

[@bunnyonabunwithagunnicepun5689]

Can’t wait for Part 2!

[@GeorgeDCowley]

4:50 It's probably because you punished it for big movements (like lifting the legs).

[@alansmithee419]

2:25 I have never seen one of your AIs so despondent.

[@nemtudom5074]

1:10 Gotta love how its going to be the most dexterous creature alive once its finished training .....But only in its right arm lol

[@JWhite-qi5zv]

The Wilt Chamberlain joke made me audibly laugh. Completely unexpected. 💀

[@szynke9553]

3:00 its me enjoying capitalism

[@GamerChad_EaturBalls]

4:35 he's having a seizure help him

[@shawnakervin]

i love the background music. simple and fun!

[@MaskedDeath_]

"the AI is smuggling extra information into it's neck" is not a sentence I ever expected to hear. It is strangely resourceful, though.

[@nocluebruh3792]

1:28 honestly... I would have made the same mistake lol

[@bluey-next777]

6:29 HEADSHOT

[@youtuner9031]

Final part of this serious is gonna be spiderman playing bowling and table tenis at the same time

[@jaygvswrld]

love when you upload

[@ricopuper]

Pls make ‘AI learns to play soccer’ next.

[@rappyrap2819]

I see these walking AI videos often, and I notice they are never given feet, they always either have spheres or the end of a square leg. I wonder how it would go if they were given feet, even just simple rectangles that they could move.

[@ts4858]

I think spheres work better than rectangles though

[@braydentreleaven9370]

I swear someone needs to make a movie about ai learning like this, it would be awesome

[@nidhu595]

Ah yes... a video that starts with epileptic AI, my FAVOURITE!

[@sirgoosehonk2716]

0:50 bro tweakin💀

[@citratune7830]

2:30 AM??

[@citratune7830]

stayed up to see this

[@theomnipotentweeb4891]

The second learning montage made me laugh a lot.

[@MostmajorofLs]

I watch your videos during school. 10/10.

[@Learn_The_Cube]

5 am est 😢😢😢

[@DANNYonPC]

6:16. you forgot a N in front of the U T z

[@String_noodle]

Nutz

[@lemagicbaguette1917]

From what I’m understanding, I need a jellybean firehose, a bag of Dorito crisps, and a taser to teach a toddler to walk. Gotcha.

[@mattybrunolucaszeneresalas9072]

I didn’t see no Doritos chips

[@lemagicbaguette1917]

@@mattybrunolucaszeneresalas9072 well yeah. They were all eaten.

[@zachsmith3761]

“With the most active pelvis since Wilt Chamberlain” now that is a great joke that may unfortunately fly over many peoples’ heads

[@ohhi687itsme8]

8:24 he finally admitted it

[@hexa1905]

1:47 funny bru but you just measured length in *feet*. Use meter, 1/300.000 of what light travel in 1 second. Pretty intuitive right ?

[@catomax26jeev]

One thing to make it stop jittering so much is to punish it by moving too much, and reward it for not going so slow.

[@MihajloCiric]

8:23 Lmao, this resodated with me more than I admit to say xD