Is a Realistic Water Bubble Simulation Possible?
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- เผยแพร่เมื่อ 20 ม.ค. 2020
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Their blog post and report on 3D segmentation is available here:
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📝 The paper "Unified Spray, Foam and Bubbles for Particle-Based Fluids" is available here:
- pdfs.semanticscholar.org/72ec...
- cg.informatik.uni-freiburg.de...
The FLIP Fluids plugin is available here:
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If you wish to understand and implement a simple, real-time fluid simulator, you can check out my thesis here. It runs on your GPU and comes with source code:
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If you are yearning for more, Doyub Kim's Fluid Engine Development is available here:
doyub.com/fluid-engine-develo...
Ryan Guy's notes on their FLIP Fluids implementation differences from the paper:
- The paper mentions gathering data from nearby particles in some calculations. Our simulator does not perform a nearest-neighbour particle search so we've made some modifications to to avoid this search.
- Our whitewater generator uses the Signed Distance Field (SDF) of the liquid surface to derive the surface curvature for locating wavecrests.
- The SDF is also used to test the depth of the particles, such as if they are located inside or outside of the liquid volume.
- Instead of using the particles to calculate velocity difference (trapped air potential), we are using velocity values that are stored on the grid.
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This is an insane channel.. the amount of dedication is unbelivable..
Just found it! Also totally blown away by the work input into it. Definitely going to share!
@Two Minute Papers. Thank you and Congratulations on your growth and certain future successes.
This is a man who makes the Navier-Stokes equasions (Fluid dynamics, allso reputed as some of the hardest mind bending math in physics) interesting.
I don't want to seem like I don't think he deserves the praise, but he doesn't research these things in order to do a TH-cam video, probably. He researches them because it's part of his field and he's interested in them, and does TH-cam videos on them after that. I'm just saying he is definitely interested and that deserves to be praised, but I don't think his dedication is as much to TH-cam as it is in his own research, regardless of TH-cam.
that said, I've never done a single TH-cam video and I keep being told it's more work than it looks, so, who knows
Keylanos Lokj Game and simulation are two totally different things, most of Game effects are actually cloned. For example bullet holes, explosion, muzzle flashes. Those are pre-rendered and cached property. It’s mighty be possible for game Engines to run real-time simulation. However it’s impossible to render real-time fluids in the foreseeable future. Especially when rendering materials like fluid( refractions, reflectivity, transparency, etc)
@CBEdits He is a computer graphics researcher, Dr. Károly Zsolnai-Fehér.
If you're doing serious stuff, you are not praising other's stuff blindly and just use them. You study them thoroughly and think of ways to improve them, even if it is beyond your knowledge, you have to know something about them.
I'm not a 3D artist, I just enjoy watching these simulations.
Same. I just like to poke my head in to see how different arts and technologies are progressing.
@@steviebob4 Since this is open source software the progress goes faster every time when more people join the development.
@Octopus Of the nine realms You dont have to be in Uni to work with software like this. I only went to college, but learned the most about this software by simply watching youtube tutorials.
I'm not a musician but I listen to music
@@twintyara6330 im not a chef, but i eat food
It's truly amazing that something like Blender exists - and it's talented researchers and coders who make that happen.
Indeed. So good!
This is the intellectual commons. People do things because they love doing it. However Capitalism will tell you that's not possible. These days every new thing is getting patented. We must protect our common treasury.
@@ShubhamBhushanCC copyright will tell you it's impossible. capitalism would be a lot better without it.
@@voidofspaceandtime4684 luckily you can't really infringe copyrights in a free open source project.
@@HAWXLEADER I'm saying generally. copyright has destroyed the public domain.
I didn’t know there was an uncanny valley for liquids
I was trying to find these exact words. Very cool.
what you saw are just test scenes. check what ILM did for the movie Battleship 8 years ago
That is a truly accurate description.
LMFAOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOO
imagine what the R18 gaming community could do with those fluid simulations....
I wish so much that in Blender you could do water sim interacting with dirt requited, smoke and rigid body physics T.T
CGI is so pretty, you take for granted that in real life things like those exist but to figure them out, program and render them it takes a hell lot of time and effort T.T
Thank you for upvoting,
just seeing this video put me in an obsessive mood to learn physics and programming to make my own physics simulations but I'm just a really big idiot with no practical skills and just a lot of passion, very little patience. I'm just very admirative of those things
This is comming up in one of the next updates. The entire physics system is being reworked right now, and in the end, everything should be able to interact with everything.
@@johanaantjes2000 hope the mantaflow integration gets to be that good
@@arescet You can give it a try at builder.blender.org by downloading the beta version.
have you seen the engine physics destruction volumetric smoke and fire from Dennis Gustafsson @tuxedolabs its amazing , combined with this fluid simulation graphics for games will be near photo realistic especially with the advances in monitors , still there is a ways to go before matching the human eye resolution
Blenders own fluid solver is getting a replacement soon. (Might already be in 2.82 builds, not up to date on that.)
Its called Mantaflow and can also do spray/foam/bubble particles.
I've heard it's based on the FLIP fluid sim
@@fabbrobbaf Mantaflow is not related to the FLIP Fluid Addon.
Both Mantaflow and the FLIP Fluid Addon use the "FLIP" (Fluid Implicit Particle) method to use particles instead of geometry for the core simulation, final geometry gets generated after.
Mitsuma's Animation and Stuff thanks for the rectification
Mantaflow is there in the newest builds - along with the old method :P bubbles, foam and spray exist
yes, it is in 2.82 beta builds
oh god this is so good i cant believe it
This paper challenged my way of thinking about the universe / physics in general. It's like - is surface tension even real - in a way. We come up with all these insanely complex models and interactions to describe phenomena that are magical but what creates these phenomena is so simple. It's like we're looking at the surface level of everything not seeing the black and white 2+2 beneath the surface.
The most unrealistic thing in some of these clips that makes them look not real is the background
"Yes, they are possible. Thanks for watching"
It would've been hilarious if he said that in the first 10 seconds.😄
@@ZA-ui1sv Jeez, you don't belong in this channel anyways.
@@3rdvoidmen594 that's why we are not subscribed
@@Space_Wanderer. Good for you
This is the definition of elegance in computer science.
It wouldn't be possible without the math though!
I just love those rather quick summaries that are made for everyone. Yours are in fact so well done that I am slowly starting to feel like I am addicted to them.
Thank you ~
Adding to this video, as you said, it's a elegant solution that goes 80% of the way, but of course there are lacking elements.
The most glaring is the simulation of bubbles in static fluids, on cups and so on on; only recently the mechanism by which bubbles attach themselves to the inner surfaces of containers has been explained, as the largest take.
When i'm watching the simulations on 1.25 x speed, it looks way more natural. This is something i've noticed with water simulation before, it doesn't look "fast" enough compared to real life water.
Depends on the size, some of the simulations are oceans. We have yet to have very small vessels that lack foam
@Christian William Sorry, what?
MindTreat yes somewhere between 1.25 and 1.5 X speed seems more realistic to me
@@wyvern274 I took that in consideration, but i see in my comment it looked like i meant every one of them, but i really meant just some examples of them. Some were almost spot on tho, its getting really good. But i still see in movies that they don't always nail water simulation perfectly, some studios have a bit to go, and some have miles left.
@@mindtreat He means that a wave in the ocean is slower than a wave in your tub
I don't even use blender. I just come for the insanely satisfying animations
just the sort of thing I've subbed for, absolutely mind blowing how far we have come
I love this channel. The tone of the presentation, the enthusiasm and admiration ... binge worthy
Thank you for another great video. Great to hear you getting excited about quality work by others.
You make the most remarkable videos ever. It's no wonder you're in my top 10 subscriptions list on my channel! 😍 Thank you for everything you're doing. Please never stop. Also, I look forward to the insane graphics of video games in about ~10 years time, with the advancement in speed of everyday computers, processors, ram, etc. 😁👍 Mind blowing stuff!
Mind blowing graphics. Thanks for the beautiful research paper and your detailed explanation. I have become your fan. All the best for your future endeavors 💐.
I checked out the FLIP Fluid reel and it's amazing!
Blender is like the Wikipedia among encyclopedias!
The amount of love and care that goes into this application is really incredible.
Thank you for the shout out!
Amazing discovery. Love your channel and thank you for all your work and dedication
Just wow! I love this content ^-^ please keep uploading!
Man. With this channel u make my dream come true with muscle video, water etc. Good job man!
Thanks Fr. for all of your incredible content !
I really appreciate someone broadcasting this stuff. Nice to see more people recognising good learning from journals that aren't the big obvious ones
So happy I found this channel. The simulations are amazing and so damn satisfying to watch.
This is becoming my goto channel for my Internet WOW moments! Thx for making them!
Fantastic content. Thanks so much for making these papers accessible to the fans!!!
I’ve been thinking about getting FLIP fluids but this really sealed the deal. Looks soooo good
I love the enthusiasm and love that this man has for his subject. It is genuinely inspiring to see such passion for and appreciation of knowledge.
I love this technique and the visuals so much that I keep re-watching it.
Thank you very much! What a great video :)
Hey there Blenderphysics! Thank you, happy to have you around! :)
Thank you so much for sharing your work. Your passion for the subject matter shines through and you generate some truly spectacular content! Keep up the great work - I'm excited to see what you come up with next.
Manta flow, blender’s new flip fluid system (now included with 2.82) , also allows you to add bubbles, spray and foam after the fact too. I’m not sure if they’re calculated in the same way as this plugin though.
I just have to say that I literally don’t do any 3D things and I don’t totally understand everything said in your videos but it’s so entertaining and I’m learning more and more with each one so thank you for making such an amazing channel
Wow. Your channel is incredible. Your passion for what you do is equally as incredible.
Thank you very much for this incredible plug In!!!!
Genuinely insane. I love your work, always fascinating every time.
Thank you for your effort and your work! Keep like this :)
Love your videos. Thanks for sharing simulations are gorgeous to look at!
I've never used the mentioned plugin but I looked a little bit online and the method used seems very similar to the method used inside Houdini, so definitely it has some potential! Keep up the good work
You have just literally explained a dream about this very subject the other night, sooooooooooo good :D
this was very inspirational for someone doing research. thank you
This is so cool!! I've recently compiled an Unreal Engine 4.19.2 build from source with Nvidia Flex (It's no longer maintained and doesn't support more recent versions) and this is exactly what that does among some other things. It's so cool to play around with Rigid body, soft body and fluid simulations in realtime and the fact that it's possible in a game engine is amazing!
for me the only purpose of this channel is to hype and make me dream about all the possibilities that these researches can bring. I LOVE IT!
GREAT tutorial! thanks for sharing!!!
I love this channel. Thanks man.
Amazing work, both the presented research and this video!
I have mad respect for the plugin authors for open sourcing this work. Dealing with closed source libraries is a major pain point my firmware team has at the moment.
Watching while my water simulation is running...
Very good channel, keep it on!
Thanks so much for your efforts and the beautiful videos and explanations!
that looks great. it's amazing how realistic those particles make it
Love your animations they look great
Amazing rendering! I wonder how hard it would be to determine under what conditions the underwater and foam bubbles merge with each other to be come "larger" diffuse particles and include that as well.
The lighthouse at 3:30 just looks gorgeous! The added bubbles trapped under water just add so much to realism. They perfectly convey the huge forces involved in the collision. I expected the building to collapse every second.
I'm in love with this channel already
Your videos are my inspiration to researching.
That was amazing. thank you for sharing!
This is mind blowing!
This chanel is amazing!
Never dared to step into fluid simulation before... And now a paper offered with intuitive explanation on the topic? What a time to be alive!
Looks incredible 😍
Great video! Thank you!
This is just so incredible!
In the new version of Blender (2.82) the built in system is revised to work with this simulation method (Flip particles and Mantaflow). This version is planned for february this year, so you dont need to purchase the flipfluids addon.
I think the greatest tool for artists is one that gives them a level of control between approximated solutions like this and more physically based ones. I really want to see more from the 2 minute papers series actually implemented as plugins, so i am glad for once this is actually something i can play with.
I did not realize until now that some of my favorite fluid sims already use FLIP fluids
you deserve more traction!
very interesting and visually stimulating, thanks
meglepően alig látok magyarokat itt.. nagyon érdekes videó, köszönjük!! :D
3:35 -- that one got me, amazing stuff
Thanks for sharing once again!
Holy moly... Can't wait for this to be seen in games. Thank you for the video!
Great piece of art 🖤😎
It sucks that TH-cam's compression makes the bubbles slightly less amazing looking
one of the most amazing channels on this website, your passion is incredible. out of curiosity, what are some of the most prestigious journals , that this paper might've been qualified to be in?
my mind blowned with all of these discussions... i like it when its like this. all about effects and stuff.
Tnx to this YT channel exist cuz people researching can easily watch and learn from this.
Thanks for doing what you do
Meanwhile, real-time water simulations in games look like a few spheres moving along a parabola into a prerendered puddle. We have a long way to go.
@Interdimensional games have pre-baked graphics because of optimization you can play it at a playable rate
This video can be implemented in games right now. Yes, right now. The takeaway is that you would have 60 SPF. Not frames per second, 60 seconds per frame. That is, if you have a decent enough graphics card, and the fluid being simulated is not that great in size.
You dont want to wait 80 hours for the river you're trying to cross to render
Yes, but some games do it quite well, take a look at Sea of Thieves for example, which despite being multiplayer does it quite nicely:
Links to game footage:
(gfycat.com/keenunsightlyflyingfish-sea-of-thieves-seasick-tyvan-tv-gaming)
(steamcommunity.com/sharedfiles/filedetails/?l=german&id=1273602336)
(th-cam.com/video/aGogFt4bhTM/w-d-xo.html)
@@oleksiishekhovtsov1564 thats because, i believe sea of thieves uses an animation for the sea, rather than a simulation
2:05 "It is unreal how good it looks" Unreal?
Unity
Blender is getting mantaflow soon which is similar to the flip fluids addon in 2.82, should be by the end of february.
Breathtaking!
thank you very much for making these knowledges accessible for us.
If the bubbles look really bad on the video, try upping the resolution cause the bitrate will be higher. I am using a 1920X1080 monitor and it did improve the quality!
bro this is actually so enjoyable
great video, thak you man
The fluid simulations look so good, the crazy long hours of render time is worth it.
You’re so enthusiastic you make me want to learn this stuff but I don’t understand any of those equations
I never really thought about it, but to make water look and feel just like real in a simulation or render is an extremely complex task. I’ve yet to see something that looks perfect, but they’re getting really close, and look great
Very impressive work indeed!
Getting excited for the time when (not if) simulating and rendering these kinds of environments is feasible at runtime. Certainly not tomorrow, but certainly not never!
You are not just a coder, you are an artist :)
Thank you for sharing.
Flip fluids is now the standard fluid simulator in blender. I have used it a ton and i love it
Regarding the business model of Flip:
*All* plug-ins are required to provide source and to allow redistribution. Otherwise they would be in violation of Blender's license.
It's perfectly legal to solicit funding, but closed-source plug-ins are only legal if they are developed and used in-house.
Without closed source, there are no anti-piracy measures because if you annoy people enough they'll veto those features by using the source. This means that the viable business models are gift-ware, "pay what you want" shareware, paid development ("bounties" for features, in-house development), and paid technical support.
So thank the developers for the software, but thank the Blender community (especially those who purchased and liberated the codebase) and the Free Software Foundation for the license and business model.
You’re so kind:)
You know what's awsome? Few years ago raytracing was time consuming process used only by big companies ie. in movie industry, and now we can have it right on our desk, in real time (granted, maybe now it's still not the highest quality, but it's first iteration!).
The same way this state-of-the-art fluid simulation that takes 8h to render will be processed in real time, on our PC standing on a our desk. Or by phones that fit in our pocket. It's mind blowing, can't wait for it to happen.
This paper deserved a "What a time to be alive !", where is it ?
You are too persistent. I love it!
I love this channel.
Blender is getting new fluid simulator "mantaflow" in version 2.82
Im not too familiar, how does it compare to flipfluids?
@@skyr8449 It has some options same as flipfluids, but flipfluids has more advanced options and it is more stable.
I cant do shit with current Manta Flow builds, i hope its more stabe In the offical release
@@skyr8449 "how does it compare to flipfluids" You mean the "flip fluid" solver/addon or flip fluid method?
Mantaflow also uses flip fluid.
Flip-fluid addon is more mature, stable and guess faster and in short better - at least for now.
Mantaflow in suitable also for smoke and fire. FLIP fluid Addon seems a bit more refined