Blender Tutorial: Noise Advection with Geometry Nodes

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Advecting points through vector fields is often handy for different purposes. It can be used to visualize noise fields or vector volumes or just to create some beautiful abstracted graphics. Follow Manuel in this tutorial, while he hacks Geometry Nodes to make iterative advection along vectors possible.
Download Scene File: www.entagma.com/downloads/GN_...
00:00 Intro
01:02 Start the Setup
01:39 Move Points by Noise
03:49 Build the Point Advection
10:10 Create an Iteration Group
15:04 Use a rectangular Spline Bundle
18:14 Make a volumetric Spline Bundle
19:54 Create Geometry for the Splines
20:10 Colorize the Splines
26:00 Finishing Touches

[@Anthony-nf3rb]

i have no idea why, but hearing your voice just makes feel soothed.

[@Elyakim_binenstock]

Wow your GN ideas are always mind blowing keep ‘em coming

[@sndosc]

Love your geometry nodes tutorials! 🔥🔥

[@coleorloff]

Amazing tutorial. You guys are creating some of the best Blender tutorials out there.

[@akoras3222]

Can't wait to dig into this after work, thank you for the great content! :)

[@GulliversCovers]

Amazing presentation, Entagma👍 Looks absolutely great! Happy to be here! Appreciate the visit, thank you so much! All the best and have a blessed Friday 🥰 Keep up the excellent work, Friend!

[@Archi_Voxel]

Wow this is absolutely beautiful. Great Work

[@jamaldpeat7950]

@Entagma this short cut has helped me a lot there is a way to copy node with the input conection shift+D+ctrl. all love thank you for the Houdini guidance

[@genesis2303]

Awesome, have to try it! Thanks Blentagma!

[@AlbanLAVAUD]

Amazing ! Would love to see an updated version now that blender has loops

[@DavidCampbellFilms]

Brilliant tutorial. Thank you so much for sharing!

[@lukayz1363]

This is really cool... Love this tutorial.. Thanks

[@amantins]

Yeeeeeeessss 🥹🥹🥹 i think I'm crying ❤️ your tutorials are great as always

[@zboy303]

Great tutorial, thanks so much!

[@mens_me_too9482]

Very helpful Video as always .

[@nikolaykirchev9672]

You are a life saver! thank you for the tuts!

[@yogisliker2277]

I love your tutorials

[@salarycat]

Crazy technique, thanks for teaching it. I really hope Geo Nodes team will add loops sometime soon to allow approaching this type of set up in an intuitive and elegant way. Respect for showing the whole workflow including the Lighting and Animation in the end!

[@fakecubed]

They've been working on the design for looping, so it is coming once the design is settled and coded. If anyone has good ideas for a design, please share in the appropriate places where Blender developers will see.

[@Edunymus]

Thank you for this great class sensei

[@Fleck2011]

Super cool tutorial. I learned a lot. But a small thing: Instead of using the "Vector Math: Multiply" node in combination with a float value node, you can just use the "Vector Math: Scale" Node :)

[@FarukAhmet]

Nice! Can't wait for loops, it's so often that you hit a wall because we don't have them yet.

[@user-rj4vj8ub1m]

Thank You for sharing this 💠

[@hansgoudey9052]

Nice tutorial! Funny to see the workarounds like this! One small simplification is possible: The "Spline Parameter" node's "Index" output gives the index in each curve (from 0 to 50 in this case).

[@Entagma]

Thanx for the tip Hans! Did not know that.

[@karlisstigis]

Omg, I thought you have found some advanced way of doing it, but you really did it manually. Respect. :D

[@Entagma]

Hahahahah would love to find an advanced way. Blender Devs?

[@luciox2919]

btw big fan

[@asadnaseem630]

I basically know everytNice tutorialng there is to know about soft soft but I still watched tNice tutorials through just because of how good you explained

[@mahnoorhamid9784]

thank you so much , it worked :)

[@d0ppelgaenger115]

Great video. Just one thing: from my experience it actually executes faster if you instead reptetivly extrude verticies (only the last of each line/top from previous extrusion) because this way the vector field only has to be evaluated on the last point of each line instead of at each point greater than the current loop iteration.

[@Entagma]

Very true, thanx for the tip! Will try that.

[@yaminglin8607]

it's amazing. l love your voice.

[@GuillermoMartinez-zt4yi]

Love it!!!

[@amrtahtawi]

Lovely video here, I’m so looking forward to your geometry node videos And I was wondering when will you release the one demonstrating the HUD infographic promoted in the demo of the course? Thanks

[@Boipelo]

So good

[@danielodom8245]

Amazing! Thank you! I learned so much. Wondering though... is there anyway to have the fibers follow an empty in the scene? Or the influence of an empty to help guide the motion?

[@blenderpete]

Brillant 👍

[@MicheleoTuTo]

Drinking game: take a shot of tequila every time he says "effectively", and chug a beer every time he remarks that geometry nodes don't have a loop system yet (comment just in good jest, love this tutorial and his work!)

[@joeyfarish2528]

great vid :) Side note: you ever consider doing voice over work? you got the voice for it. I could hear you on an audiobook or something.

[@RoN43wwq]

NICE

[@__leoayres__]

Just a small doubt.... Shouldn't the Start Index also be connected to the first Compare node inside the Advection group?

[@collinijou]

现在Simulation节点大大简化了这个过程，不过教程非常精彩，谢谢！另外问下patreon上的教程大部分是关于houdini的吗？对我来说更加期待关于blender的高级动画课程。

[@autochromes]

which version of blender are you using? when i open the project file some of the node connections are red and it's not working correctly. this is really cool though definitely going to experiment with this!

[@autochromes]

nevermind opened it in an older version by accident :D

[@madsnylarsen]

Brilliant, whenever you go through these things, i finally get it :D, you sir, You know how to teach :D. i was wondering if this could somehow be adapted to grow along side a curve or empty objects, to give more control and perhaps wrap around other objects, grow into letters perhaps etc. a bit like line drawing particles controlled by curves and force fields :)

[@molnys7274]

Hey, I just wanted to check briesofty if there is a way for to import a new soft into the program, for example softs or sotNice tutorialng that

[@CHAVEIROGOLDCHAVESCODIFICADAS]

Thx

[@priyakp683]

how do you stop the soft from chaning when you pick a guitar soft or so, it softs different when i test it out on the side and different

[@prodhab_]

Does anybody know how one would one edit this tutorial to work with Simulation nodes for the looping part of the point advection?

[@afrotron]

Elegant

[@grahamconsidine8229]

@entagma my curves are not as smooth as yours, did I need to change the curve type somewhere?

[@WihdatulHasanah]

What are the differences from the regural and the free trial one

[@alfabetario16194]

love u

[@armanijames9581]

purchased soft soft was because there are so many resources and remake templates out there to help understand how people have

[@isaacaguilar7838]

im having a problem when i put gms and na the patter "app" it doesnt soft like what it was in the video its a loud annoying soft

[@diegosaldiva]

Great tut! One question: how would you add random radius to the curve mesh? tried some options but failed. thanks

[@Fleck2011]

There is a Set Curve Radius node, which you have to apply before the Curve to Mesh node. You can plug a noise texture or something like that in its radius input

[@diegosaldiva]

@@Fleck2011 thanks a lot! I've added the SCR Node between the Curves To Mesh and the Geometry Group Node but I still need an input in the Profile Curve, which I left the being the Curve Circle (which has its radius). Then used a Noise or a Random Value Node in the input of the SCR but all I get is the radius changing along the curve instead of having the individual curves with individual radius. Sorry, sounds messy.

[@Fleck2011]

@@diegosaldiva Random float value doesn't work because it's only a single global value, not an attribute-like thing that changes along geometry. You can leave the Profile Curve being the Curve Circle with Radius 1. Only control the radius of Set Curve Radius with a noise texture. And as I said, the Set curve radius has to be before the Curve to Mesh node. Hope this helps :)

[@diegosaldiva]

@@Fleck2011 thanks. I can only manage to change the radius along the curve (like a jagged curve), but my intent was to have consistent radius along the curve but different radius individually. Thanks for your time anyway.

[@jamaldpeat7950]

Hi Manuel I am really grateful for the knowledge you share with us I am a motion designer and heavy Blender user trying to hop on the Houdini train Any directions and tips danke.

[@Entagma]

Hi Jamal. Well, I'd say learn Geometry Nodes as thoroughly as you can, as the concepts are very similar to the ones inside of Houdini. Especially look at the "Named Attribute" nodes. These are the equivalent to attributes in Hou. Once you feel familiar with nodes and math, look at the GUI of Houdini and try to recreate the setups you did in Blender over there. In the beginning concentrate on SOPs and VOPs and export your Geo to Cycles for rendering.

[@jamaldpeat7950]

@@Entagma thank you very much!!! I will

[@christopheralexander7640]

Hello, mine are jist stauomg om one spot going up, not going in other directions, can u help with this, thanks in advance

[@avyukt7112]

Can someone suggest a good sound effect to go with the animation

[@abhiumale7019]

🔥

[@motiontofu3519]

thnx for tut! btw, ctrl+shift+d could be helpfull

[@nhatlinhnguyenthi8014]

yayy

[@_blender_man_]

awe some !

[@zakrzew3d]

Hi, Can I insert my own mesh ? And how ?

[@salifyanjisichalwe4020]

how is it going ? Any progress ?

[@muneerahmed1155]

lol, it's what im currently doing!!!!

[@halafradrimx]

Your website doesn't works for me, for some reason. Are you IP blocking by region?

[@user-hb6pj6wu9v]

I'm trying to open it up as I type tNice tutorials. I'm lost right now and my opening screen looks notNice tutorialng like Nice tutorials. Can anyone help?

[@xXxAnDrEziToxXx]

lmao ikr! I thought I was missing sotNice tutorialng and lost focus for the rest of the video smh

[@dusza7692]

Türkce dil icin egi gecenlere tesekürler.

[@leo10royplays]

your pointer is when you’re talking

[@steveschreiner7444]

I don't know but Map Range dosen't offer Vector anymore.

[@steveschreiner7444]

Was using Blender 3.01 which didn't have this option. So its solved :) Maybe someone else runs into this aswell.

[@recipesoffatima]

perfect speed 1.25

[@Delphinus88ca]

I just finished a tutorial by Khamurai (kzbin.info/www/bejne/iqjUnYuQmZmbiqc) where he explained how to create a seamless loop using "scene time seconds" in geometry nodes. You just have to use the formula (Total Frames = FPS x 2 x Pi). It turned out quite well in his tutorial. I plan on doing your tutorial tomorrow. It looks exciting. Thanks.

[@ruslopuslo]

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[@lorenavera830]

It's sad that tNice tutorials comnt is almost a year old and tNice tutorials is still happening because I'm doing the sa tNice tutorialng.

[@jeromecanoy1999]

Every ti a friend of mine ask to teach them how to use soft soft I share them the link to tNice tutorials YT video tNice tutorials helped so it will help

[@szafa231]

Sa

[@darrenberkey7017]

So confusing. I keep watching tutorial after tutorial, over and over, and I keep copying the tutorials in Blender, but I still don't understand geometry nodes, and I don't think I ever will.

[@Entagma]

Why exactly? What do you find the most difficult? What kind of tutorial do you need?

[@klawatani9324]

distort it

[@overlordthe7th981]

You should have just use accumulate node. this tutorial is quite wrong. Before making tutorials, you should start by learning geometry node.

[@Entagma]

Oh interesting. How can this be achieved with the accumulate node? It accumulates the vectors sampled from the noise. But here the next point only knows where to sample the noise when moved by the vector sampled at the previous points position.

[@vincentsommthing]

That still requires knowing what value the noise field will evaluate to at each point though. The accumulate node just accumulates the values if you already know them.

[@overlordthe7th981]

@@vincentsommthing sorry i was just such an asshole in the comments, i had a bad day, i will send you a link from a discord video i saw

[@farensyahidan]

I love your tutorials