An Implicit SPH Formulation for Incompressible Linearly Elastic Solids
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- Опубликовано: 19 мар 2018
- A. Peer, C. Gissler, S. Band, M. Teschner,
"An Implicit SPH Formulation for Incompressible Linearly Elastic Solids,"
Computer Graphics Forum, DOI: 10.1111/cgf.13317, pp. 1-14, Dec. 2017.
Presented at Eurographics 2018 in Delft, The Netherlands.
cg.informatik.uni-freiburg.de/
fifty2.eu/ 
Наука
I'm a simple man - I see a video about Implicit SPH Formulation for Incompressible Linearly Elastic Solids - I click on it!
Ditto
It's certainly the best video about an implicit SPH formulation for incompressible linearly-elastic solids I've seen this year.
Same
i love this comment
Seriously, who isn’t here for the Implicit SPH formulation for incompressible linearly-elastic solids
for those who dont understand, this is as simple as i could get it -
their math make bouncy thing bounce and jiggle more better
I thought anime solved that problem years ago...
Less jitter in balls is always a good thing
I literally read the title like 3 times and then I was like "Oh it's like titties!" in my head
jiggle good better best
A phrase I never thought I’d hear
the sound effects are just amazing
what's the name of the sound?
I'm glad they used John Cage's 4:33 as the song. Definitely one of my personal favorites!
@@limeking3587 hey same!
I can't hear anything, wtf
@@astafzciba you're deaf then sorry to break it to you
There is something comedic about incredibly well simulated squishy virtual bunnies rolling down a platform.
Amazing work.
Your formulation is clearly superior. What I want to know is how I got from Count Dankula Mad Lads talking about cannibal serial killers, to whatever this is.
you too?
...no kidding.
Holy shit how long does this very specific list go
WTF? You too?
Legit same exact story
Science is a perfect excuse for throwing inamimate squishy 3D models into a pit filled with water
because its very important to perfect how the jiggle
Gusty Yes, it is very important to get the jiggle perfect for the next generation of VR games.
A video made by intellectuals and geniuses aimed for an audience of intellectuals and geniuses but instead it is recommended to us...
I made it here just fine, i can answer any question with a great answer, litterally about anything
@@OnsideHaddock72 Username checks out.
@@drone_better7757 you are 1/3 photon so 1/3 of your composition is sunlight, its one of the many ways you are in a matrix, its simple boson physics, humans dont ask questions that profound, therefore any human question has a simple human answer
Yes Im Going To Be That Guy what are you?
Yes Im Going To Be That Guy that whole text was literally a block of scientific bullshit lmao
Them: stVK (t = 1 ms)
Me: ...
Them: Capsule hits bunny
Me: HAHAHAHAHA
4:41
Bunny funny heeheee
4:28 that is the single cutest thing I've ever seen in my entire life.
Scientists: Hmm, science
Me: Haha, bunny go *splat*
5:37 me and the boys looking for implicit SPH formulations for incompressible linearly elastic solids
Stop "my and the boys" this is dead bored meme
it wasn't 6 months ago, dumbass
@@lightbulb8888 you are a dead bored meme
@@grieferjones2237 are you fucking stupid?, this is a joke.
@@animationspace8550 read the message i send to it's ya boi
4:12 I can almost hear the GPUs bursting into flames trying to render this
Rendering was easy, I think. The baking's where the pain comes.
Implying he rendered the animations using a GPU :) Also, the CPU is used to only calculate sims. Fuck off 'gamer'.
@@juancarlosgzrz someones hurt
@@juancarlosgzrz
Simulations can be processed using CUDA... Which is on GPUs.
@@juancarlosgzrz What part of 'graphics processing unit' do you not understand?
Me: watches video*
Me: looks at pc*
PC: ...nononONONONOSTO-
5:36 My friends when I open a pack of doritos and they hear it.
its incredibly realistic looking and has a very natural motion, crazy, imagine this level of realism in VR video games in the future...it would be insane.
truly
Yep. If only technology could be better
Martin S+ unfortunately thats true, at least I think we have a chance of being able to run this in complete real time in video games in the the future of like 15 years away or so.
Sounds about right. To be honest, we're pretty close to that. I've always dreamt of making ultra-realistic games and always wondered why no one has yet. I'm realizing it's because we don't have powerful enough processing power yet.
I'm pretty excited for what the future of games will hold.
Official RXO+ well better and much faster computers are being developed as we speak, for instance there is that company called Optalysys which is developing optical processors which are significantly faster than traditional modern day PCs but unfortunately they are not aiming yet for mainstream and for gaming/CGI needs, its more for niche market and the likes, so right now its for scientists/medical tech/deep learning AI and so on, but maybe in the further future down the road so to speak we may see their optical processors being ultimately used by all for many purposes and even for gaming/VR simulations ETC...the future is exciting.
This is awesome! I can't wait for this to proliferate into the industry. It'll be awesome to see this move from demo to fully rendered in games and vfx.
What makes you think that will be possible? Moore's law is dead.
Nobody:
Bunny: I have appeared to have flattened, but I shall return to my true form.
03:54 when you have a serious twister session
4:55 me coming for a family breakfast
IamWAHID
i, too, roll down the stairs into a shallow pool for a family breakfast
SEVEN AM WAKING UP IN THE MORNING
LMFAO
(Mum shooting from down the stairs)
stop rolling down the stairs you fat glob!!!
I love how almost every one of these videos as a humurous "you did not expect that" near the end. Hear, the armadillos crash down. So cool!
As you can see...
There's science in this shit.
... and I understand none of it.
Lol
Its called Smoothed Particle Hydrodynamics. Very interesting stuff. Wiki it.
just keep buying the videogames and shut the fuck up, everything will be just fine
Just keep buying cgi heavy movie tickets and shut the fuck up everything will be just fine
I am also in the same situation
Video Creator: As you can see, we have models of different variables and how they affect vertical particles.
Me: hehe bunny goes bounce
2:07 Me on the left as soon as I would close my front door after arriving home from school
The news: There's oil in the water
The US: 5:36
An implicit formulation for S P O N G E Y B O Y E S
@Mike Anderson bold of you to assume we have mouths
Self Collision was absolutely stunning!
I'm sending this to all my friends.
And my enemies, too.
4:28 When ur pet rabbit is sick.
4:33 when he didn't take it the first time
4:42 *EAT IT YOU PIECE OF SHĮIIII*
This is an amazing simulation! It shows significant advancement over what is commercially available with CFD or explicit solvers.
I’d just like to take this moment to remind people what all the jiggle physics are going to be used for.
@@sriramn1809 3d anime tiddies
+@@elizabetheve940 Leave it to the weebs like us to use scientific simulations like these for porn.
*_science has evolved just for this cause_*
With all the negative space inside these models, do they take a long time to dry? Is mold a concern?
*all said with a strait face
1:20 when your coffee was too strong.
Watching the bunny get hit simulation was hilarious and amazing at the same time
i swear youtube keeps recommending me these academic physics simulation videos. i have no fucking clue whats going on but im strangely addicted to them now
That's really something! Great work!
Rolls right off the tongue
The pool party at the end is excellent!
Ich könnte mir dass stundenlang angucken. Jungs und Mädels ihr seid die besten.
Coolest = self collision
Most disturbing = phase collision armadillo dissolving ... just ... makes me feel not right
The music at 2:13 is awesome!
Absolutely magnificent
5:01 me, drunk, leaving the bar
There's something nostalgic about these simulations
Well done, amazing work
So tell me if I get this right:
I looked it up and found that SPH stands for smoothed-particle hydrodynamics. Basically it a way of simulating things that normally have trillions of particles - like water, by approximating it with relatively very few particles.
By Incompressible it just means details of whatever it is can't be grouped together to be a single input of the physics function. Like each particle has to takes into account the effect of every other particle?
Then a Linearly Elastic Solids is means that the elasticity of the object is the same throughout the entire object.
So uh.. what does it mean by "Implicit"? how can you imply physics?
Implicit refers to the method they're using to solve the relevant differential equations. Explicit methods calculate the solution directly from the current state, while implicit methods calculate the solution iteratively within some tolerance. Implicit methods are typically more computationally expensive, but they are also typically able to handle longer time steps than explicit methods.
@@kevinjohnson7142 I don't get it. If tolerances are being used, how will you get better results?
@@yaedo6035 study the basics of differential equations man.....
@@jorgevaldivia7482 I misunderstood his answer, that's why I got confused
I think incompressible means that the volume does not change, like with water, or a ballon filled with water
This was an awesome video!
Really nice improvement in efficiency, i wish that triple A games used these more.
This is Absurd.
Incredible.
HELL YEAH!!!!!!!!!!!!!!!! THIS RULES!!!!!!!!
Totally amazing !!!
4:46 legend has it that the ball is still rolling away
These people are doing gods work
I don't know what i'm looking at , but i think it's fascinating.
I have no idea what any of this means, and I have no idea why RUclips recommended it to me, but it's fascinating to watch.
Linearly elastic solids? More like “That bunny’s getting demolished!” This was very cool, and also fairly comedic. Thanks for sharing!
2:39 Don't you just hate it when you go through a phase transition? It is so painful and annoying.
Bet this took a crazy amount of time to render.
Imagine watching this video in VR.
this phase changing tech is nuts
hats off to the programmers
Beautiful
Yes!
This is amazing
very satisfying to watch
Kinda expected to see you here
As someone doing fluid simulation, I appreciate the math that goes into simulating realistic fluid behavior.
Looks amazing! What software is this?
Its an implementation of their research paper ( onlinelibrary.wiley.com/doi/abs/10.1111/cgf.13317 ) in their preferable programming lang and then giving the output to a research oriented renderer like pbrt ( pbrt.org ) or Mitsuba ( www.mitsuba-renderer.org ).
PS: Your videos are amazing!
The processing power of those computers must be insane to make this
i really like An Implicit SPH Formulation for Incompressible Linearly Elastic Solids
Ah yes, the good ol' incompressible linearly elastic solids.. what a classic!
How was the fluid modeled? Was it also particle hydrodynamics? At 0:21 it looks like there are particles of water, but I wonder how many paticles you had to used relative to the solid bodies.
I was really on the fence until 4 bouncy werewolves fell on some bunnies and balls in a kiddie pool (5:34). You just closed the sale Freiburg. Well done!
so nice!
4:29 Bunny: I AM INVINCIBLE
4:35 "you're a loony"
4:41 did you say something?
Me: minding my own business
RUclips: Hey kid, wanna see an explicit SPH formulation for incompressible linearly elastic solids?
Me: Wut?
RUclips: Don't ask questions, just get in.
A definitively fun person at parties: It's an IMPLICIT formulation :)
Amazing physics simulation! I wonder how much of a compute overhead this implementation incurs. It's one thing to brute force an accurate simulation in a very small system, it is another to come up with something that is practical to use on a commercial scale.
Don't know what i'm looking at but it looks a lot faster and cooler from what my research has gathered...
great where can I get this cuz i need this in my life
Totally Bonkers ♥
Are there any smoothed particle hydrodynamics applications already developed for industrial use? Like, I'd love to do some flow around a hull using this novel formulation.
Yes there are a bunch of commercial simulation softwares proposing SPH at the moment. It's not the most commonly used formulation because it's relatively young but it is for example used in conjunction with other formulations to simulate bird strikes on airliner engines.
I notice you're not getting tearing in your models. Does this mean the distance between particles does not play as significant a part in the bond strength between them as you see in other formula?
i dont know wtf is this but i like :)
Master engeenering work
I think you should consider the scale of the experiment. For instance, the first video is implausible for a normal scale, maybe it is correct for a huge object. The videos are awesome, keep up the good work!
SPH means Smoothed Particle Hydrodynamics. They are modelling solids as a type of liquid allowing for bouncier computer simulations.
The armadillo soup bit was equal parts amazing and disgusting
5:36 I didn't expect that
is this using blender3d? or cinema 4d? incredible sim
3d max)
Gotta love that they used the Ubuntu font here.
how much do these cost I would like to buy one for my child
Interesting to see up to 0.03 second gains on the BIT09 system using Freiburg's algorithm. Would like to do some follow up research on this.
Just created something very similar using blender :D It's so satisfying just cutting through some of these objects in Eevee whilst it is baking lol
the 100X slow motion reminds me of a titan transformation
how do you do something like this in blender
do you just use particles
they do ... but they use THEIR maths to compute the actions between particles themselves, and surrounding
I still remember the first time I play my unity 3d. I put 1k capsule in the air and let them fall into some container. It was quite satisfying, though lagged a lot with my i3.
3:34 I like
Aww, look at the cute bunnies.
I've always wondered whether they build up a proprietary 3d engine to show off these algorithms or they use something already available. No mention in the paper.
:o incredible
So this is basically the molecular script addon but with more control?
3:50 Good idea for kama sutra )))
5:36 Pool party!!!
1:20 left: depression. right: depression but with coffee