Phyllotaxis Spirals With Geometry Nodes Blender 3.1 Tutorial

[@CBaileyFilm]

Here's the link to the original article where I found the code this tutorial is based on, enjoy! blender.stackexchange.com/questions/1371/organic-yet-accurate-modeling-with-the-golden-spiral

[@greydeepy]

I found this a few weeks ago trying to figure out how to do some stuff for a sunflower and found out how much that spiral shows up in nature. I was at a garden today, and was seeing the spiral all over the place! Thanks for sharing this!

[@jonWithaBlog]

This is literally the coolest thing ever. I am a cs major and seeing you translate python to geo nodes was really cool. Its funny that nodes are literally programming for non programmers lol.

[@psy237]

well that's just true for all the node systems, even material nodes you find in all 3D apps, or blueprints in UE, etc ;)

[@djmintyfreshful]

my new favorite tutorial channel!

[@CBaileyFilm]

Thanks so much!

[@LauertdasVerderben]

Thank you so much for the Phyllotaxis spiral nodes, brilliantly explained and simpler than anything I could find!!!

[@Fozz84]

I stumbled across this whilst googling Phyllotaxis. It's exactly what i need. Thank-you!

[@mymediterraneangarden]

Excellent tutorial! Really helpful. I´d love to see more on geometry nodes for creating plants

[@redline5921]

This is cool

[@CBaileyFilm]

Thank you!

[@psychic-transmissions]

First off, thanks so much for this amazing tutorial! If I could just give one note though - around the 27 minute mark the nodes start to get really hairy, so in the future if the nodes were a little better organized that would make a huge difference. Thanks again! Really enjoy your content!

[@james_r_frost]

Please can you update the other tutorials! I'd love to make the mushrooms one

[@seandarcy2351]

When applying the mesh primitive at 12:18 can I select the uv Sphere to create a pinecone shape?

[@SavingThrw]

pure genius! 👏

[@Bau-3d]

awsome tutorial, really appreciate it but i got stuck at a point, i want to use the spiral for a snail. somehow im not able to convert the starlike output in an actual smooth spiral without intersecting lines. Tried mesh to point and point to curve to convert it but getting similar results

[@trujillozhuhai5283]

is there a reason why whenever I delete the Icosphere node my entire plant disappears?

[@laraschmidt847]

where do you get you leaf texture

[@seandarcy2351]

Using a pinecone for an example the size also changes slightly from top to bottom with the center (equatorial plane) having the largest pinecone scales. Will I need to use the z function to change the size iteration for this adjustment?

[@lakshantharaka5932]

i hace a problem i did everything right. trible checked every thing. after connect combinexyz and position i only get a single line. im using 3.1.2

[@pigmentinoil]

You need to input the magic number, 137.5 (golden ratio). Input this number in the To Radians node; 5:50 > 6:50 timestamp.

[@chani7928]

Hi, I found this tutorial while trying to build succulents using Blender Geometry Nodes, and doing some research I came across the Parastichy numbers, but I couldn't figure out how to apply them to this workflow. Do you mind helping me out? Anyways thank you very much for sharing this, it is very nicely explained and helped me out a lot!

[@jolandanvt2379]

I'm trying to do the same, but I can't get it to work. Funny how we are trying to do the same thing 😅

[@belivaboy]

Hi, Can you please do a speedster running animation

[@facukin_]

Can you upload the link to the Python code?

[@CBaileyFilm]

Yes, I completely forgot, here's the link to the original article: blender.stackexchange.com/questions/1371/organic-yet-accurate-modeling-with-the-golden-spiral

[@hippapasworkshop146]

Link to the python code would be nice

[@CBaileyFilm]

Thanks for the reminder! blender.stackexchange.com/questions/1371/organic-yet-accurate-modeling-with-the-golden-spiral

[@psy237]

as i just saw from the comment on the very bottom (probably first one created to this video), he's having the same problems like me. It's possible because in the video, the unit system is set up differently than it's out of the box. That's also why I can have 1- unit radius on my ico spheres while you have to use 0.1-unit as radius...

[@neilmarshall5087]

Check the R Node (just after the Square Root node in the formula area). It needs to be Multiply for the scale to be correct. It cannot be the scale blenders unit system is set to - because everything is using the Geo Nodes scale.

[@psy237]

blender nodes are just weird. the dotted vs normal lines is one point of this. Why not give us the actual capability of making foreach loops ourselves... But I can't tell as I simply do not care that much about the geo nodes, so haven't used them really at all^^ yet also what about the gradient texture. Where does it start and where does it end, how does it know? If I do this position offset, it doesn't work at all like in your example. First of all if I set my ico sphere's to 1 unit as radius, it actually looks like when you set it to 0.1. So what's the scenes settings here? So I added a multiply after the color ramp and then a combine xyz and put that into the offset as my numbers have to be much bigger than only 1. Secondly it behaves not like expected. I have one line of ico spheres through the center of the flower that is at the very top and than it linearly goes downwards to the sides. But as said, it's a line, not even radial and straight, not rounded, in short: it resembles the form of a roof. Well, i still dislike geometry nodes a lot, it stays weird :'D I rather use the code, so thanks a lot for that :)

[@neilmarshall5087]

Check the R Node (just after the Square Root node in the formula area). It needs to be Multiply for the scale to be correct. The for-loop is coming... Yeah they should have done that first..... Check the formula area and make sure no nodes have the Clamp box ticked. That may be the cause of the roof shape.

[@psy237]

@@neilmarshall5087 thanks so much, I'll try that today when at home :D

[@The_Success_Script]

wow i done some thing like theta multiply with "z" value by using vector math and give it as a rotation and it did amazing but i dont know what i done 😂😂

[@OnaRocketship]

url is being mean

[@mainecoon6122]

code; import bpy import bmesh import math n = 1000 # number of points c = 0.1 # scale factor mesh = bpy.data.meshes.new(name="Spiral") bm = bmesh.new() for i in range(0, n): theta = i * math.radians(137.5) r = c * math.sqrt(i) bm.verts.new((math.cos(theta) * r, math.sin(theta) * r, 0.0)) bm.to_mesh(mesh) mesh.update() from bpy_extras import object_utils object_utils.object_data_add(bpy.context, mesh)

[@CBaileyFilm]

Thank you! Here's the link as well: blender.stackexchange.com/questions/1371/organic-yet-accurate-modeling-with-the-golden-spiral

[@mainecoon6122]

@@CBaileyFilm yw, a lovely piece of code. 137.5/2, 137.5/4 also gives some nice patterns.

[@peiyu1016]

why i cant open this link？？maybe i am the unlucky one.🥲