New CRAZY fluid simulations in Blender! 

If you got to moving the points and discovered they’re moving vertically, instead of staying on the surface, here’s your solution! It’s because the noise texture we used way back at 7:40 to set the initial velocity (v) attribute is three dimensional-it has a Z component. That means when we use these velocities to move the points at 23:53 they move vertically. When @BadNormals previews the velocity attribute at that timecode (23:53), you can tell he’s removed the Z component because there are no blue colors in the preview. Blink and you’ll miss it, but at 22:18 you can see a Vector Math Multiply node has been added, multiplying Z by zero to remove that component just before storing the velocity (v) attribute in the fluid grid.

i like the node groups thingy, it allows you to make tutorials about more complex stuff without needing to waste time explaining all these little things, so you can instead focus on the more important bits.

i love the extra visualisations! those must've taken a lot of work

The two issues most will get are Moving points vertically:- can be solved by 22:18 you can see a Vector Math Multiply node has been added, multiplying Z by 0 Flickering:- Animate Radius node group and remove multiply math node above Float curve Happy Blending Artists Thank you Bad Normals for the wonderful tutorial 🤩

Absolutely insane. I'll definitely be coming back to this. So impressed. The instructional visuals were top notch and made the whole thing so much easier to understand. There are sooooo many free beginner tutorials on RU-vid, but so very few intermediate+ tutorials (I have several assumptions for why that this). This was great and helped me feel a lot more comfortable and informed about Stored Named Attributes.

I really don't know what we could do without you, look at that style of explanation, i wish we were taught like this in school and university. Relly thank you. 01:35

This is awesome! I followed a similar tutorial to create a 2D fluid dynamics simulation in Touch Designer a little while ago. I followed the tutorial to a T and was very pleased with the result but I didn't fully understand each component until watching this video. Your visuals are really awesome! I appreciate you taking the time to put this together.

This is insane! Really cool to see a lot of Houdini microsolvers remade in Blender

This is so good and really CRAZY. Thanks for explaining the math behind it so easily.

anytime you upload I know for a fact im gonna get humbled with my knowledge

You're such a brilliant mind. Never cease to amaze. Thanks for sharing your great work and insights with us.

As always, amazing tutorial!

This is mindblowing bro. Pure gold. Such a gift.

Wow the tutorial and editing itself had gone next level.

Super well done! Video, and explanation and so much packed into 40 mins!!

This is a great tutorial on geo nodes in general. So much learning!

Man i was about to sleep, accidentally i find out your channel and i’ve been watching your videos for 2hours.. someone help me i can’t stop watching 😫 you are a genius frfr can’t wait for the course

Beautiful! Clever and interesting watch, thank you!

I wonder when Blender foundation will start updating their physics simulation engines. Donors nowadays only focus on UI and render engines. I hope we see more real world physics simulations in Blender.

the quality of this tutorial is just amazing !

You’ve blown my mind a few times in the first minute, I’m ready for the rest lol 😂

Beautiful video @BadNormals, thanks to you im confident to start a journey into simulation nodes.

Thank you so much.💕💕💕💕💕💕 Would you please consider making a longer video about this topic? The swirly effect looks awesome.

The quality of this video is absolutely insane

This is really dope stuff

Man, I really need to play around with Blender; these simulations and tutorials are awesome!

Quality! Thank you

Just finished a 3d implementation, thanks for laying the groudwork out for me!

The gold fluid coming out of the eyes at 38:38 looks awesome!

great video, nice dreadlocks, big up!

this will be great for making flow maps for rivers in games

amazing!

beautiful animated infographics

A ground up geometry nodes course will be really appreciated and is needed. That’s where most blender users still lack knowledge and understanding. I just signed up.

Funny thing: when you were making the pressure calculation using iterations and you said that we started to see a pattern, it seemed to me like the pressure was more than just a pattern: it was the perfect negative of the divergence. So on a whim, I tried replacing the entire pressure calculation with just the divergence multipiled by -1, and it actually worked perfectly! :)) Another note: instead of adding/deleting points continuously, just fix the velocity in the border cells at 0. I did this by making a boolean attribute for edges with more than one face neighbor (so now border vertices are zero, others are one) and multiplying this by the advected velocity in the sim zone. This causes the borders to become walls, and the particles stay inside them. With these improvements the sim is even more performant.

you make awesome content! I was testing and the advect node is different from the one I downloaded, I just changed it to how it is in your video and now it works

Awesome geo node stuff

amazing work bravooo 🙌👐👏👏👏

Awesome!

Ok I rarely leave comments glorifying tutorials, but not even half-way through this one is on another level.. the humorous touches here and there are definitely the cherry on top !

You are absolutely genius

Damn what an amazing tutorial thank you ❤

nice hair dude, i love it!

Helpful!!!!

Amazing!!!!!!!!!!

놀랍습니다. 강좌의 수준이 다른 채널과는 차원이 틀리네요. 👍👍👍

so cool! I wonder if it is possible to create a 3D fluid simulation? I'm very much looking forward to it!

Fantastic!! It could be another way to make Apple Events logo.

i did not expect my boy to have dreads, thanks for the dank video.

that is next level shit bro, I doubt few universities in the world have this level of teaching method I seriously doubt it thanks for the great tutorial the blender comminuty is unbelievable I can't believe this is free!

Very cool. I've already used this to make some cool fluid animations. One thing I'm curious about: When it's updating the velocity properties, does it overwrite the same properties that it's reading from? It seems like that could add some inaccuracy depending on what order it's evaluated, which you could avoid by using some kind of double-buffering. I'm not sure if it does that automatically in the geometry nodes, though.

it's just like magic

Tremendous video. Easy to follow along, and I learned a ton. Made the first simulation and it is awesome (IMO)! I now want to try to make the simulation you show on the face with the gold coming from the eye. You mention that you show on the full length video how to do that but I don't see it in the 2 hour video. Can you give me the link to the video that shows how to do that? THANKS!!!

6:13 if you dont see it moving and you've been pausing and backing up to follow exactly because some actions don't get said, and you deleted your group output like he did before making the simulation zone - add it back and this should fix it

14:00 Usually this is where I give up because I don't know why something like that is happening LOL

tried to follow didnt go well ( probably my skill level ), but great content and love to see more

There are TWO move points noe groups, you need the one with the object instanced

I think it is the time now blender people should use and make Premade node that are optimized becuase at the end everything in computer is code and libraries that we use knowingly or unknowingly. thats why my long-term goal is to shift to linux as well.

I really love how amazing your tutorials always are! I was just wondering how could I adjust the speed of the overall animation? I can't seem to be able to adjust it without messing up either the pattern or something else? Thank you!

Like, how genius of a mind does one need in order to, let alone create something like this, but to just understand what is being taught here?... Asking for a friend!

Crazy big brain

you are the GOAT🐐🐐

I'd like to create a similar swirling texture, but with a solid material instead of points. Is there a way I could store the velocities of each point as a named attribute, and then use the result as a vector map in shader nodes?

你的视频教学内容总是充满了惊喜和惊艳，非常硬核而有趣味，讲解清晰明了，期待你的课程。但是，我最终还是学习不到，用这样的方式使用几何节点，对于数学基础较弱的人，这太难了。

Amazing Tutorial!!! Thanks!!!

Hi, I’m very new to blender. I made it up to 6:22 where you try the animation. Mine didn’t do anything but I noticed that the advect on your video has a 4 on the right side and mine has a 2. I don’t know what this means but, could this be the reason why mine doesn’t work?

look at all those cool stuff my old gpu can't handle lol

Brilliant tutorial. I'm using this technique with multiple cameras, though, and every time I change the start frame to render a new shot, the simulation resets itself - it basically starts from having 0 particles, rather than having the particle count it would have if I'd started rendering from frame 0. Is there a way to add a "run-up" variable somehow that will run N steps of the simulation before it evaluates the first frame? I tried using a repeat zone with the mesh part of the geonodes setup (distribute points on faces, store og_pos etc) but couldn't get that to work.

Pagan, mul on ikka hea kõrv. Kuulasin ja mõtlesin, et natuke nagu eestlase aktsent. Aga polnud päris kindel. Mõtlesin, et äkki on lätlastel sarnane aktsent või oled hoopis skandinaavlane. Siiski vana video reetis rahvuse ära. Olen juba kunagi varem ühte sinu tutoriali järgi teinud ja siis polnud mul aimugi uurida kust autor pärit. Tänud ja Thumbs up.

Hey all, quick question: How would I transfer this across files? As in how would I attach this to another model. I've followed the tutorial in my Goe Nodes Asset library file and am wondering how I would have them marked as an asset. Do I need both the Fluid object marked and the secondary sim tree marked as well? And do both need to come along when I use it on another model, like the face example our esteemed teacher showed off? Thanks sir, stunning tutorial, awesome work as always!

That's what I'm talking about!!!

amazing tutorial! quick question: i was trying to find a way to slowly change the flow patter during time, but seems hard to achieve. changing the seed of the flow sim noise texture obviously doesn't work. any idea?

This is looking fantastic!!!! Is it possible to make a fire sim with simulation nodes? Something that would be faster than regular sim in blender?

Bruh are you a Wizard?! 🤯

Thank you for this great tutorial. Im working on art project with artists and im would like to know if it s possible to do this with a picture. Start with picture and liquify blending color, image ? My final objectif creat a fade on fx and fade off fx, and maybe between image A and B. blend oil painting fx

🤯🤯🤯🤯🤯

This is a triple-A level of tutorials

Hey my graduate mathematical physics course is going to be handy now (jk I will still use Chat GPT)

Would love to know how you created the animation with the fluid flowing out of the eyes of the head model?

Я плохо говорю по англиски, но я все понял. Чувак ты гений, так держать)

I finished the tutorial and the fluid works but no colors are showing in the viewport or render. Not sure if there was a step I missed or it was cut out. Blink and you can easily miss something. Overall, really cool tutorial, kinda hard to follow with couple steps cut out and the side demonstrations but thankfully the comments section figured most of it out.

is simulation wery cool and crazy

Nice, work and tutorial! What computer hardware are you using? I want to learn blender, but my computer is too bad

Excellent tutorials,but it could be better if you don't use those preset node groups because personally I think it‘s not beginner-friendly😂

what if I want to add an object that goes through the field, and the particles interact with it? How would I do that? Should I add a geo info into the simulation zone?

You mention that Delta Time was not working. This might be due to that Delta Time (in blender 4.0) is 0 at the first timestep. So if you scale using Delta Time from the simulation node, you clear your velocity field. If I replace the initial dt for frame 1 by 1/fps it works for me.

Amazing Tutorial! one Question: How come my points are moving great at first, but after some seconds they start moving in one direction only, as if the vector math subtract node stopped working?

Freaking cool, but next time plse.. keyshort viewer (mouse and keyboard) or explain what you press, because in 4:00 I was so lost how you put that position Name in the Named Atribute and then the viewer.... but yeah, great

How might I go about adding physics into this, so a 3d object can interact with the scene?

This is awesome! I try to do the same effect in Touch Designer and failed. Now I made it! Still have a question: I try to change the size of it. So I change the grid. But the effect didn't follow. Are there any other node need to be changed? Hope to be answered! Thanks！

would be possible to construct this but in 3d - a 3d vector grid ?

When i want to bring in the Named Attribute dt nothing happens and the projekt stops working. Can someone explain me how it get the Attribute dt in my Projekt?

ive done exactly the same thing and still having issues with the material it wont show up for those particles just for the floor mesh

is there a reason to disappear the gird when try to undo?

I am unable to follow along. For some reason my grid is black and white and not black and red and can't see the animation happening. What am I doing wrong? :/ edit: after a long time, I finally managed to understand it. thanks

Увеличение и уменьшение точек выглядит как костыль. На первом кадре стоит найти точки сетки в которых дивергенция не 0, и потом в этих точках создавать новые точки или удалять старые, тогда жизнь точкам можно не ограничивать временем и она будет более интересна

hey mr. bad normals, how can i integrate that ripple animation you taught on the bonus content to this point cloud animation?

Would it be possible to make the new particles inherit the mapping coordinates of the average of nearby particles at the time of birth, so that it don't get reset past a certain range?

Might be the only one, but im having issues with the Pressure attribute storing for some reason even with the node

I got to the part where you scale the velocity by delta time for the Points geometry nodes, and all the sudden the points started moving vertically. I don’t know why, because all my nodes are the same as yours. Only weird thing is that when i searched for “dt” it didn’t show up as a pre-existing variable