A 1,000,000,000 Particle Simulation! 🌊

[@pedrovisgueira]

All that goes through my mind when watching your videos is imagining when we get to the point of video games having these physics in real time, I hope I get to experience that

[@MushookieMan]

If if we were capable of that, video game designers still wouldn't use it. There are techniques that are much faster to program and execute. Video games still use 2d sprites, for example.

[@EnricoUniverse]

Yeah when I saw the baking simulation, I was thinking of making a baking game with that technique.

[@MarcillaSmith]

@@EnricoUniverse coincidentally, many gamers are known for getting baked, while gaming

[@sumitgupta2618]

@@MushookieMan It would be really cool though. Even if it is not feasible to use these in games if any game does this I would love to play it.

[@Eldorado1239]

I think we're not waiting for papers or hardware anymore, in this case it's more about standardisation. Maybe VR will be a good drive for creating one, adding hi-grade physics to everything 3D, because people will want to physically interact with things like in "reality", no matter what game you play.

[@trollocat]

the channel's name has never been more faithful than now, 3:47 is the start of the new content and 5:47 is the end, exactly a two minute paper

[@DirtEChip]

Thank you for this! Everything outside that time-frame has been in a previous episode.

[@jesusdesu2397]

holy cow you're right!

[@springchickena1]

im growing stupid reading and watching thanks!

[@Silkari]

Would love to see fluid simulations with drops of ink so we can see the flow and mixing.

[@SirLiamTheGreat]

Really nice idea

[@ARTofTY-TV]

I'd also like to see oil emulsify and eggs beaten.

[@joshuawilde6962]

You may be interested in a game I made for Android and iOS called "Splash Canyons". Some color mixing fluids in there

[@bernard9823]

& change inn color

[@monsoon1234567890]

Just a few more papers to go until I get my holodeck. Can't wait.

[@britishempires]

Ur already in it. 😂👍

[@VoxelMusic]

That's some of the best moving fluid sims I've ever seen. Usually water looks kind of gooey but this looks really impressive.

[@yadav-r]

The mathematics, physics and computer algorithms behind all these, and the folks with all the 3 skills and possibly more, wow.

[@TomCRitucci]

2:41 nothing cheers me up more than that when I'm feeling down 🤣😂🤣 I reach for my papers, cling on to them and think about simulations then everything is magically ok.

[@johntnguyen1976]

If there ever was a channel that exudes hopefulness and positivity...it's Two Minute Papers. Thanks for everything you do!

[@Chronowizpal]

His "now", "but", "yes", "so", "well" and "I" brings me unmeasurable inner calm

[@steNOT3]

imagine a whole game that was simulated with[ physics down to the very atom, that would just be insane

[@jonorgames6596]

@Steven Calise What if I told you, you're in one right now?

[@nmmeswey3584]

@@jonorgames6596 This game sucks. How do I change the cartridge? I want to play metal slug

[@mrlightwriter]

You're talking about the Matrix we're living in.

[@nullbeyondo]

No thank you. I prefer simulated down to the wave function.

[@RRRR-jr1gp]

A spherical area contains approximately 2.6E43 bits per kg per meter (radius) of quantum information. Issue is, you can't just increase that limit, your computer is also limited to that. Therefore you can't simulate things with more massradius than your RAM perfectly. You could employ active lossless compression to help with that tho, maybe.

[@JosueMartinez-ww1vj]

This is soo amazing, I can't wait for powerful enough GPU's that may simulate blood cells transporting oxygen from the lungs to the brain!

[@martiddy]

Technically, you can already, though it may take a lot of time to simulate it, depending on how powerful your graphic cards is and how many particles you're simulating in the process.

[@JosueMartinez-ww1vj]

@@martiddy Amazing! Thought it was impossible! Thanks!

[@carlosmspk]

@@JosueMartinez-ww1vj Like all of these things, you can simulate close to anything with the right model and simplifications. The simulations shown in this video, for instance, don't simulate atoms, that would be crazy hard to do. Same way, if you simplify blood cells, and even more, simplify clusters of blood cells, you can always simulate something. I think that's what ​@Martiddy - Sama meant to say with "you can simulate it"

[@JosueMartinez-ww1vj]

@@carlosmspk thanks for the clarification.

[@josephpaulson9495]

Maybe in a few decades... We could probably do something like this with each blood cell just being represented by a particle that can have a oxygenated and non-oxygenated mode, but right now I don't even think we are at the point where we could assemble a 100% accurate replica of a single bacteria or something like that.

[@10thletter40]

The moment I saw the boat and leaves, I absolutely lost my mind. That looked so real!

[@OperationDarkside]

When we're able to run it on a tablet, it will be the ultimate cat toy

[@haraldtopfer5732]

Question: Can we utilize AI to find some shortcuts or even deeper understanding on broader scale for physics by "reverse-engineering" their super-approximation for complex problems? I've seen something for CFD last year I think where they gained information about the underlying physics by extracting data from specific layers inside the NN.

[@Txepetxcc]

So the question would be how much of the physics is conserved , or if it is Engineering Quality simulation or Cinematic simulation or in between ?

[@Aldraz]

Yeah we can, although you are arguably always losing some quality. AI algorithms are almost like a compression that's not entirely lossless. For physics and chemistry simulations we will have to go with quantum computers as they will have no problem calculating trillions of particles in a real-time, but we still need to wait for that.

[@videodeculto]

most likely they also use it for psychologically intrusive advertising in the metaverse

[@ProphetJayWyatt]

@@Txepetxcc LISTEN! Did you know that actor/professional wrestler Rowdy Roddy Piper posted a tweet saying that the motion picture he starred in, THEY LIVE, was a Documentary & not a movie! Now Ya Do... Remember That!! "Just when THEY think THEY have all the answers, I change the questions!!!" ~ RRP

[@ProphetJayWyatt]

@@Aldraz LISTEN! Did you know that Jo Buyed-In announced his VP, KAMALA HARRIS on August 9, 2020 which also happens to be the same day that former professional wrestler KAMALA, whom of the same real last name, James HARRIS, passed away at the age of 70!?! Now Ya Do...

[@MrKoffeeKup]

I know I am going to be an old man before we get to see this stuff fully implemented in any real setting but the fact that we can run these with some ease is showing that soon we could have realistic lava flows, actual animations as food cooks over time, realistic forging where you actually drop the metal out of the ore once it hits melting point. I hope to be able to make something like that at some point

[@GreylanderTV]

I think it would be valuable to mention what hardware the performance is achieved on. Are these run on a PC with $600 graphics card, or on a $10,000 workstation... or something bigger?

[@7katter]

nasa supercomputer

[@philippey4918]

I know that Nvidia uses graphic cards that you can buy on the market from them

[@SuperWiiBros08]

Can't stop thinking that this technology is gonna upgrade the realism in visual effects

[@holl7w]

Standing here, I realize

[@orphixigl1476]

@@holl7w you were just like me trying to make history

[@almachizit3207]

I think it might be time to go through a few rounds of figuring out how to get the same results from fewer particles

[@deividux12]

exactly what i was thinking, just storing (x,y) position of a trillion particles is starting to get into tough territory, how much more can we increase the particle count?

[@almachizit3207]

@@deividux12 1 billion particles alone has to be using 10s of GBs of RAM to store the position, velocity and force vectors of each particle, which is already a fairly prohibitively large amount

[@skyemegakitty]

What do you mean by "same results" though? It largely depends on the reason you're doing the simulation. For real-time interactive physics in a game, of course its fine to lower the granularity to maintain performance.

[@jollygrapefruit786]

3D monster porn is going to be insane in a few years

[@erikals]

mixing this new code with the recent interpolated Ai tech will be extraordinary !

[@Ardoy9761]

Ever few seconds I feel like he says a word backwards then reverses it so it makes sense.

[@CodeF53]

I can't wait to tear bread in half realistically in vr.

[@onlyonSiMPLE]

the only pain i got with 3d simulated liquids is that they don't get to have long stringy strings and the thin transparent flat bubble whole when you stretch it out for slime or honey.

[@christianhumer3084]

Does it look good inside? Me: oh no, thats still unbaked dough! Him: yummy!

[@ShiroiAkumaSama]

These simulations looks so beautiful that I hope someday there will be an implementation into a software or even a sandbox game just to play around.

[@renbo7362]

you can SEEEEEEE bOOOOth tHREEEE OOOn a computer WEeeeLL

[@syntexpr]

That's funny

[@Seraphim190.]

two minute papers that gos for six minutes. i love it!

[@lilep666]

Let's see if you can count how many times he says "..AND" in this video.

[@GrubySeba2137]

This guy has so nice warm and happy voice

[@lucasrojers336]

Everytime I watch a video on this channel, I am blown away by the script. Such a phenomenal understanding of communication. There are no fluff sentences, and everything is said extremely precisely and simply, but with a complex inflection. It sounds wonderfully knowledgeable without sounding condescending or dumbed-down. Wonderfully spoken!!

[@Leukick]

I've always wondered... what software is being used in all these Two Minute Papers videos??? Seriously have never heard a word about where we can even try these things being showcased.

[@SuperSmitty9999]

Bahaha read the paper linked in the video

[@kimtae858]

if you wait a bit, this will probably get picked up for the next version of Houdini. They've been integrating the latest simulation papers into the software within a year.

[@minty_macaron]

This is eye candy!! This is exactky what I want to watch. Subbed!

[@fooseball131]

THE BREAD SIMULATION THO

[@overthinker8959]

Love your way of words

[@abhijeetbehera3694]

Hey man thanks a lot. I was really overwheld and confused but now it all makes sense. Thank you.

[@Chris.Davies]

2:04 - YUMMO! That's pretty good, Károly! Quite impressive in fact.

[@lethaldumpster2699]

These papers never cease to amaze me, but my enthusiasm is unfortunately waning. So many years of incredible feats of ingenuity, just for it to see no usage in the industry. Common 3D softwares do not put any of these papers to use, and some find themselves a decade behind. Even something as beautiful as blender does not touch the modern power we have papers for, and is several years behind on the used techniques.

[@pmmm712011]

Neural networks were invented in the 1970s. It took 50 years till we are finally seeing mass industry adoption (Stablediffusion). Industry being a decade behind is totally normal.

[@lethaldumpster2699]

@@pmmm712011 this is true, but the limits of our technology which have caused this have closed the gap quite recently. We shouldn't be seeing a decade difference anymore.

[@little_lord_tam]

Those simulations will be very goof to teach physics in school. Makes it much more interactive and requires far less imagination based on interpretation which is hard for someone whos just learning smth. Glorious

[@chuatrum17]

I…. Love It !!! Thank you for the videos !!!

[@KrasBadan]

It's amazing how technique became 30+ times better in just 2 years.

[@boogeyman8099]

Moores Law!

[@jamesbizs]

@@boogeyman8099 no. Not how that works.

[@KrasBadan]

@@boogeyman8099 Except it is 15 times faster and has nothing to do with transistor density.

[@boogeyman8099]

@@jamesbizs moores law is a projection of the seemingly exponentially of human engineering and intelligence. I didn’t mean it in its literal transistor sense!

[@boogeyman8099]

@@KrasBadan moores law tells us that every 2 years roughly, the number of transistors on microchips doubles… again didn’t mean it literally more of an expression to explain the sheer ingenuity we’ve accomplished over the years!

[@youbutstronger1453]

Very cool. If we could catalog and simulate virtually every element and mineral known to man, then run combinations through a super computer we could probably discover so many new combinations and cures for things too

[@anonymousbob8445]

I like it when he says « what a time to be alive »

[@Romanticoutlaw]

that very first one got me, I had to think a moment and realize it had to be a simulation

[@Life_42]

Wow imagine a virtual world completely made of these powerful animations! What a time to be alive!

[@nullbeyondo]

I wish not. These are horrible, not powerful. They compute the 1b for 10 minutes per 1 frame. More like virtual hell.

[@ogge8375]

@@nullbeyondo you could probably optimize it by a good margin and also computers will be way more powerful in the future. I mean just look 10-20 years back.

[@AurelienCarnoy]

Ok. The leaf and the boat in the water was amazing

[@perodactyl490]

WHenn we hit the highest quality simulation we will be simulating quarks to such perfection that it will be perfectly accurate to the universe.

[@chasetuttle2780]

Kinda makes you wonder if that’s already happened

[@perodactyl490]

@@chasetuttle2780 If it has, it probably wouldn't be at a large enough scale to do something like these honey simulations.

[@chasetuttle2780]

@@perodactyl490 I guess what I meant was like what if some civilization has already created a simulation perfectly accurate to the universe like you described and we’re in it right now, creating simulations within that simulation 😂.

[@TheNoerdy]

I can’t wait for 100 years in the future to see how powerful these are

[@noahsomeone1938]

if you are alive, it is statistically improbable that you'll be alive to see these in 100 years, unless they have them in some sort of afterlife

[@georgejenson7402]

simulating baking on your computer will make your computer bake itself

[@Velossitee]

Not only that but the fact something breaks perfectly instead of partially 100% of the time needs to be worked on as well.

[@charlescoult]

I dreamed about things like this while taking computer science in high school...

[@campbellmorrison8540]

Wow, I have no idea how to even begin to simulate something and display it, mind blowing stuff.

[@HelsenbergFan]

anyone gonna talk about how his voice sounds like 2 people talking

[@benmcreynolds8581]

These projects are what really gets my juices flowing. Physics effects and finding ways to utilize them utterly fascinate me. This will be good for scientific research projects. Tho when transferring over to video games, we would need to discover new ways to make good physics, but without taxing the tech so much because we were trying to render so many individual particles.. I'm sure there is a way you can sort of roughly understand how that object will move and then have techniques that break apart the object into multiple structures that roughly understand the approximate outcome. So it gives the look of good physics responses in the game but in a manner that isn't too taxing to the hardware. *BTW I just gotta say, there is nothing more fun to me about gaming, then being able to just go around and dork around with the games mechanics when they are built to make a very reactive, responsive, impactful effect to it. It's really fun to just mess around with random things and see what abstract unknown creative things occurs with that games physics effects. It's so much better than a game that has preset animations for every action... That's what can bore me in a game.. I hope the gaming devs really realize that it really can be so much easier on them to make players happy again. That is just focus on plain old simple FUN! Heck most of us would tinker around with a game that's not super over the top, but gives you a creative environment area to play around in this sorta physics based sandbox area, and if the devs give players options and freedom within that, it can create a very addictive fun experience. I just saw this new sword fighting game that's historical and brutal, you die super easy like if it happened in real life. But. Those devs did a great thing where they provide completely open customizable modes that let you try out and practice all sorts of things against a cpu bot that is customizable, and when you get a kill/win, it smartly just spawns in the opponent again so you don't have start and stop breaking of the momentum and it entices that itch to keep messing around in these training sandbox modes and see all the things you can learn and it just gives me vibes of the games back in the 2000-2010's era type games. That had all these options for playing against the CPU bots if you were alone and couldn't play split screen, or online. Idk why that has ever fazed out of gaming but we really need to realize what makes games FUN AGAIN because if these game devs want to keep making lots of money? They HAVE TO MAKE THE FANS HAPPY. You make the players happy by creating (at their core) Fun Games!

[@noahsomeone1938]

wow. nice comment

[@jesper9622]

This is what im doing. Though im just a one man team and not working on it full time.

[@soupborsh8707]

I know it's impossible but imagine infinity powerful computer. We could simulate the Universe realtime and even speed it up

[@jamesbizs]

I mean; you just described the universe. Lol

[@noahsomeone1938]

no, we don't need the matrix to turn to reality

[@reddiamond_1753]

So how do you keep your pc from disintegrating itself while doing this?

[@skullies3580]

2:06 *Ichiban heavy breathing*

[@ZacharyRodriguezVlogs]

I know you tell people to hold onto their papers, but I just dropped mine in awe.

[@jeriko2982]

half of the videos i'v just seen was already uploaded by you, long time ago.

[@knl654]

Thank you for these videos, they keep me in the loop.

[@DandandanTelevison]

I’ve actually created very similar simulations to the one you see here on my PC. I’ve got a GTX 1060 3GB and I know it’s not the most powerful but it can surprisingly do a decent amount of things like the jelly cube you show here. I’ve always struggled with achieving perfect water animations tho. Maybe one day I’ll have a PC that it will be possible on. 😂

[@malirabbit6228]

I don’t know tech stuff, but each time you run the simulation do you always get the same results?

[@michaelleue7594]

No. Even if you choose a non-random seed, random effects like the temperature of the silicon you're running on will eventually cause enough chaos to be observably different, when you're talking about hundreds of trillions of computations.

[@malirabbit6228]

@@michaelleue7594 I didn't think so. Thank you for your timely response! I enjoy sure channels even if I don't totally understand them! Live long and prosper, y'all.

[@flynntaggart7216]

@@malirabbit6228 yes it's random

[@jameshughes3014]

This channel never fails to make my jaw drop.

[@Vesohag]

To be more precise, it is one thousand million particles, not a billion. But that it is still insane!!

[@elijahjohn7115]

2:30 A little confused about what exactly is a real photo. Aren't we looking at a simulation? Regardless, what a time to be alive!

[@jamesbizs]

@ModuMaru really weird how it was done tho. A tiny little picture, that no one was even wondering about.

[@mihajloperic7737]

This guy saying what a time to be alive fuels my life

[@Fr4nk4000]

Every day I am trying to understand the powerf of computers. This is honestly breathtaking. I am so fucking proud that people made this.

[@Freddisred]

Glad we're simulating all this honey, now technology has finally caught up for a sequel to The Bee Movie.

[@StarForgers]

I think that there should be ways to make these simulations extremely fast or Realtime no matter their size as long as you can make the program properly multithreaded or multiprocessing in a way that effectively makes particles store information on each particle in a box. Then depending on each particles speed to prevent particle clipping register their direction and radius or whatever kind of shape it theoretically has to determine how many areas/particle box sections or whatever we wish to call it to simulate the outcome. If you have 1 thread/cpu simulating each of the particles speed or possibly individual gpu cores if someone finds a way to use their specific architecture for physical simulation, then as long as you can get everything to communicate properly during the checking phases it should scale nearly infinitely as long as you can get enough cpu cores to maintain whatever fps you want. Of course an approach like this would make it hard to work out the simulation kinks or hang-ups when things want to go insanely fast causing particles to domino multiple other particles into yet more partitioned areas during a single simulation frame or cycle. Still i think depending on how it is done it is possible with the scaling of cpu cores and possibly gpu cores if someone finds a way to utilize shaders in that fashion! I'm actually quite interested in the idea of someone making program that can utilize gpu cores to mathematically simulate or rather emulate cpu calculations in a way to make it act like your cpu has an extremely large amount of slower cores to do if you have the right drivers. Maybe there is something like that out there already?

[@emanuel3617]

Now, let's get to 1 trillion!!! I believe in you, little scientists!!! 🎉

[@julcrm]

Please give him so many likes, this channel is so great!

[@Lippeth]

Thanks, I always wondered what a ransom note would sound like.

[@xtreemgamer129]

imagine when we'll be able to play videogames running like this in real time and everything is particles instead of triangles.

[@Fernanda-wo5gz]

i love it that he's a doctor but he's excited like a freshman 😭

[@BadAverageGamer-BAG]

This is unbelievable...

[@TheAMadMan]

It looks like we're hitting the uncanny valley with these simulations. Crumbling and smaller breaks are missing that little something, akin to video games before valve realized eyeballs should be slightly football shaped to look right. That's pretty darn close to looking real! This could even be considered a human issue, since adding irregularities and other noise that occur naturally would do the trick.

[@bluestonecreeper720]

What a time to be alive

[@Kingpizza21]

Your voice is the best asmr

[@vedritmathias9193]

My wife and I were going to go to SIGGRAPH when they were in town last month, but we both completely forgot about it and didn't realize until like...2 weeks later. We had purchased tickets and everything....

[@Gyfrctgtdbhf]

A baking simulator with honey and butter melting into a perfect croissant,I would definitely buy it to save money,time,and ingredients from my futile efforts.

[@djkaeh5673]

Yeah, fluid simulations in different viscosities are cool and stuff, but the baking simulations in particular really blew my mind. How is that done?? Does the animator manually add the air bubbles to expand, or what? Absolutely blows my mind.

[@Speak_Out_and_Remove_All_Doubt]

We are getting closer to simulating our simulation!

[@redfyresasoiaf]

I understand maybe 50% of the technical jargain in this video. I'm here for the visuals and I thank you for what I got, lol.

[@harrazmasri2805]

the results are most amazing!!!

[@happyhippoeaters4261]

What about a 1/2 particle fluid simulation?

[@PovSlacking]

is it just me, or did the video glitch to the point where an ad popped up and now its stuck as the video itself?

[@F17A]

One thing that’s always missing in these photorealistic simulations is the slight flaws of using cameras in real life. The lens’s effects and whatnot. If added, these simulations would seriously be impossible to differentiate

[@hippotripo6145]

“Hold on, I just gotta bake these textures”

[@carlosmspk]

I can see one day being able to simulate these things so fast that we go to the point of simulating real life faster than real time and have all sorts of automata that can approach predicting the (very) near future

[@scottmiller2591]

> Shows shear simulaton > Says "sheer human ingenuity: I see what you did there.

[@luke.perkin.online]

It's totally amazing work, I just wish they'd get some artistic help on the aesthetics. What scale are the shallow blue ponds? The viscosity or surface tension looks wrong at that scale. And why did they use such badly coloured water?

[@tomasgarza1249]

If they are measuring the efficency of the algorithms, its a good idea to take external variables off the measures

[@luke.perkin.online]

@@tomasgarza1249 Of course. The benchmark is always reality though.

[@whatistruth_1]

Genuinely wonder if and how long it will take for blender to incorporate these papers

[@joe-rivera]

I’m always hopeful these new fluid sim methods will make their way into common software packages (Houdini in particular), but they never seem to. Is it because they are patent-encumbered or are ideas in papers too untested and theoretical to be used in production? What has to happen to close the gap?

[@ProjectPhysX]

Sometimes the author's do not provide all the details in their papers to reproduced results and do not share the source code. Sometimes they do but noone takes the work to re-implement it. Sometimes you see only the 0.1% of simulations that actually worked, and 99.9% of parameters run unstable, so it's not really usable. And sometimes - that's the case for my CFD software - it's a standalone software that is not really feasible to integrate in existing software, because they are too inefficient and would kill all performance gains.

[@michaelh4227]

I can't wait to play this on my PS8.

[@ltsglitch]

I can also simulate baking in my computer just by playing any graphically intense games

[@mertmurat13]

fire video, thanks bro

[@williammanning5066]

I've been learning about real-time fluid simulations, in particular two techniques: a simple grid-based one using the momentum formulation (meaning each grid cell has density and velocity), and another hybrid particle-but-sometimes-grid using the vorticity formulation (so each particle has vorticity). What approach is usually used for offline graphics?

[@IAmNumber4000]

My dream is to be a master chef of simulated foods

[@SigmaMale558]

Honey Sim was a B. 3 way is the way to go for that type of sim

[@tobi-98-31]

AAAND AAAAAND AAAAAAAAND

[@bms_beats6729]

It's so God damn annoying

[@Lando_idk]

I also like the smoke particles coming from my pc

[@Lunageldia]

I always wonder if or how these fluid simulations account for the movement of the negative space that should be air particles.