Blender Tutorial: Geometry Nodes Simulation: Relax Points

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Often you'll need point distributions with non-overlapping points. Be it that you want to pack scales onto the surface of a fish or distribute vegetation on your procedural terrain. Although the "distribute points on faces" node comes with a poisson disc mode to remove overlapping points, that is not always the ideal solution. Relaxing the point positions through simulation can help in these situations. In this tutorial Manuel uses one of the experimental Geometry Nodes Simulation builds to implement a point relaxation simulation.
Here you can download the experimental Geometry Nodes Simulation Build builder.blender.org/download/...
Download Scene File: www.entagma.com/downloads/Rel...
00:00 Intro
00:32 How the Algorithm works
02:53 Implement Relaxation in Blender
03:10 Set up Simulation
04:09 Merge by Distance
04:35 Calculate Displacement Vectors
06:11 Instance Geo onto the Points
07:00 Put the Points on the Surface of a Torus
08:04 Reproject the Points onto the Surface
09:55 Add Points over Time
11:35 Stop Emission of Points after a certain Frame

[@knyle7266]

When I was in college, I have a classmate that use to write long codes in the board in programming classes. Me, and our classmates as well as our teachers stare in awe as he writes the codes without any notes or stopping to think about the next lines. It all comes naturally from him. Every time I watch Mr. Manuel 's tutorial, I felt that awe again back in college. Just wow! 😁

[@rekad8181]

You moving onto the new industry standard software is the best news ever!! #BlenderLovesEntagma

[@UstedTubo187]

Man, the great ones always make it look easy.

[@zboy303]

Was waiting for an Entagma GN Simulation tutorial with baited breath! I love the look of the intro with the arrows depcting the relax direction. Looking forward to simulations getting its own clock. Until then, in order to resolve the simulation quicker, we'll have to make do with increasing the project frame rate.

[@fakecubed]

Few things are coming down the line. One step per frame is the first version of this. But they'll add in the ability to do sub-steps eventually. We're also going to get various kinds of loops, which will work similarly, but offer some other functionality, and independence from the frame counter. They did a whole write-up on the development blog if anyone hasn't seen that. It's going to be really interesting to see what Entagma does with the new things when this stops being an experimental feature and becomes a core part of Blender's geometry nodes in the master branch.

[@zboy303]

@@fakecubed Yeah, exciting developments ahead for GN :)

[@fakecubed]

Oh, heck yeah! I've been playing with the simulations branch myself, to some great results, but I've been really hoping you'd jump into it before it made it into master.

[@ThadeousM]

Thank you guys!

[@stefanguiton]

Excellent!

[@collinijou]

非常棒的视频，解释的如何清楚明了，并非每个人都能做到的，谢谢你，受益匪浅！！！！

[@user-qo2dy7fj5y]

excellent

[@Kregori]

Can imagine this would be great for visualizing cell division. 💫

[@_blender_man_]

I like what you are doing

[@3drwny]

thank you very much

[@wissammmax]

Thanks

[@yonlaycabrera4431]

Wow. Now we are talking seriously. Thanks a lot for sharing.

[@BoboTheImp]

Have been dying for a point relax node, this will suffice haha

[@alexvith]

Ths is cool! I tried implementing a similar system, but using the radius of the particles to determine if they are intersecting. I am facing an issue though, the particles seem to relax, but not according to their radius, which I have randomized beforehand. They are all equally spaced from their origin, but they should be spaced equally from their boundaries. The radius attribute, which is unique for each point, is being ignored in the Simulation Zone and the same value seems to be attributed to all particles when simulating their displacement. Any idea on why this might be happening?

[@pascals5408]

@Entagma can you please show how to diplay the vector and lines between points

[@pabloangeles3638]

Thank you very much for this tutorial, it's amazing. Is it possible to define a custom point radius, maybe based on object bounding box? I tried using the set radius node but it made no difference.

[@eugene.nikitenko]

Would someone suggest how to setup materials for the spheres to have a similar green outline and glowing arrows inside at the moment of collision like shown in intro? Thanks!

[@guruhegi9707]

How can i change ico sphere with another object?

[@codedvoxels]

Is there a way to also align the instance rotation to the normal of the face that is used on the proximity? i can't figure out as it only works on the first frame and then it just resets the rotation for all the instances

[@plasid2]

its possible make inifnite different shape trees using tree generator group and simulation nodes?

[@pascals5408]

Thank you alot. It should be possible to simulate differential growth with this, right?

[@fakecubed]

Yup. This is really the biggest new feature to Blender since geometry nodes itself. I've been playing around with the experimental branch since last month, and it's incredible the things you can already do with it.

[@bonifacioreyes4074]

donde localizo Nodes Simulation ?

[@kasali2739]

is there a way to use that for floor plan generations?

[@ItsWesSmithYo]

I think I’ve seen some tutorials using it for rapid urban landscape creation, maybe search that 🎉

[@globglob3d]

Builds 3.5 and 3.6 are just crashing on me and corrupting files. I can't open them back unless I go way back, several hours, to the firsts autosaves. If anyone has a fix I'd love to hear it, I don't mind crashes but I do mind losing 2 hours of work :(

[@dickie_hrodebert]

The Blender 3.5.0 - geometry-nodes-simulation branch seems to be broken.

[@fakecubed]

The December 10 and December 23 versions worked for me. The builds are buggy, though. I advise saving constantly to make sure you don't crash and lose your work.

[@FarukAhmet]

Could you implement your Point Portraits ( kzbin.info/www/bejne/bGmkgIKCpNGigbc ) using this, I wonder?

[@user-rc6li4sh9u]

How make this model in blender? kzbin.info/www/bejne/d56rdWiqpZJrZ6c

[@AMdvij]

C4D