Questions tagged [geometry-nodes]

Use this tag for questions regarding Geometry Nodes, a modifier added to Blender in version 2.92 to manipulate geometry in a Blender scene.

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Geo Node: Instance on Points and Rotation problem - I want to create something like the "yellow" for different shapes like pentagons and hexagons etc

The idea is to have different shapes like pentagons or octagons but I want to rotate the edges seperated diagonal so it will look like the yellow drawing. I tried to "instance on points" ...
falk's user avatar
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3 votes
1 answer
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How I can keep material slots when joining geometry with a geometry node?

I have the following model with two material slots assigned Now I'm trying to duplicate the model and assign a different material to the duplication, but I get this result It's ignoring the 'Set ...
ellipticaldoor's user avatar
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26 views

How to make sub clumps for geometry nodes based hair

In nature, hair often forms in clumps, however, often these clumps are made up of other clumps, if you want to make convincing animal fur you need to replicate this behavior. However I can't seem to ...
david warford's user avatar
3 votes
2 answers
358 views

how can I customize UV map the brick texture in geometric nodes

how can I make a kerpich texture so that it reflects correctly? For some reason, this method does not work. I want to arrange the texture in geo nodes, not in materials. is it possible? maybe I ...
Andrey Re's user avatar
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1 vote
2 answers
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Is there a way to output a mesh from an arbitrary list of meshes in geometry nodes?

This question shows how you can build a node tree to select between mesh 1, 2 or 3, but it's pretty manual. Is there some way to do this for an arbitrary number of meshes, so you can add extra meshes ...
Nickh129's user avatar
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Why while l am using blender new hair system in cycles render mode the hair curves seem like a tube rounded shape?

I am trying to make a hair with blender new hair system and when I go to cycles mode it seems like a tube-rounded shape. I checked the curve render settings but could not find anything useful. What ...
zisan's user avatar
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1 vote
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29 views

Looking to scale along normals using geometry nodes using a texture as a scaling factor

Not sure how feasable this would be but as the title suggests, I'm looking for a way to shrink a mesh along the vertex normals using a height map for the scaling factor. Context: This is for an animal ...
Jay Ott's user avatar
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3D Gussian Splatting looks strange after import

I am trying to import a 3D Gaussian Splatting scan into Blender using the plugin from this tutorial. But for some reason, the scan looks terrible in Blender (although in Unreal it looks like it should)...
Rumata's user avatar
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1 vote
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Bake generator animation?

Hi Im using a great generator called Flower Generator (bought from https://blendermarket.com/products/geonodes-flower-gen) It uses Geometry nodes to grow a plant. It animates the plant via geometry ...
Staiola's user avatar
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How can I create Texture Map from Geometry Node Instances/Mesh on surface?

I'm creating a product image of a can with condensation. The condensation is made through geometry nodes. To make the label feel realistic, I would like to use the location of the droplets to create a ...
j3d's user avatar
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2 answers
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simulation nodes not updating the value of named attributes

I'm try to create a particle effect, and the nodes that I've made accordingly should capture the radius, and on each frame the value of the stored attribute should be subtracted by ...
bzal's user avatar
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Is setting the freestyle edge parameter via geonodes possible?

I have found this question that addresses the reverse problem. But how do I set the freestyle parameter for my generated geometry? I tried looking in the spreadsheet for any additional attribute that ...
Cowbless's user avatar
1 vote
1 answer
35 views

Apply material based on Y position of instances

In this experiment, I am instancing some icospheres on points of a torus geometry. I then use a simulation zone to move them on the positive Y axis each frame. My intentions are to change the colour ...
Neil's user avatar
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4 votes
1 answer
57 views

Is there a way to create custom Node types or Nodes Categories using Python?

I want to create custom Nodes for my plugin, and I've found a few places on the web that say it can't be done, and a few places I've seen people say yes, but haven't explained how. So what is the ...
Golden Dragon's user avatar
2 votes
1 answer
76 views

Geometry Nodes: Chainsaw teeth or Tank Track or making instances to follow curve in motion

Didn't find a extremely simple nodesetup for this problem, especially concerning chainsaw's teeth or tank track. So, I ask: How to make Chainsaw teeth or tank track or making instances to follow curve ...
Manu Järvinen's user avatar
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How to make 3D model from spot elevation geodetic map

I need help, and I could not find the answer anywhere, so if anyone knows how to do it, please tell me. First of all, I know there are probably better tools to do this. But I would like to do it in ...
Babica's user avatar
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2 votes
1 answer
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Store Geometry Node attribute via Python in an evaluated object

I have an alembic in which the point number changes per frame and I want to store in each point an attribute via Python. Using the attr.data.foreach_set() gives me good results if the point number is ...
Artichoke's user avatar
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1 answer
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How to place letters without rotation on the faces of a torus with Geometry Nodes?

In addition to my last question, I have another question on the same topic. As you can see at the screenshot, the letters are clean and straight on the surfaces of the cube. The letters on the Torus ...
smice's user avatar
  • 173
3 votes
6 answers
393 views

Geometry Nodes: How to Read Last Digit of a Big Integer?

I have made the following setup: As you can see, the assertion fails. The Custom Group is what you would expect: (╯°□°)╯︵ ┻━┻ Some approaches I tried and failed I figured you can calculate the ...
Markus von Broady's user avatar
1 vote
1 answer
46 views

How can I animate these instances falling into position in a random order using geometry nodes?

Here are a bunch of instanced cubes. I am trying to get them to 'fall' above into this position using geo nodes. But I want them to fall in a random order. My theory was to first have some way of ...
yojimboyd's user avatar
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Use geometry nodes with a painted texture map, or a weight map, to control the thickness distribution of hair?

I would like to use a weight map or a painted texture map to control the distribution of the thickness of hair strands in the old particle mode or in the new hair system mode. I am trying to do this ...
Filat Nicolae's user avatar
3 votes
1 answer
76 views

Activating geo-node switch using a change in integer (or float) value

I'm trying to make an animation for a scoreboard, where the animation plays whenever the score value (I'm using an integer) changes. So, whenever it changes, the animation based on Tangent function ...
Demeterino's user avatar
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39 views

How to visualise overlapping lines and attribute color based on frequency

I would like to visualize the datapoints, or lines in this case, that are overlapping, and assign 1) a color based on how many overlapping lines there are. Data is an import of a shapefile where i ...
Stefanos's user avatar
3 votes
1 answer
89 views

How do I distribute more points at the end of a curve?

I am using the curve to points node. Is there a way to distribute the points along the curve so that there are more of them towards the end of the curve? Perhaps using a gradient or curve length node?...
yojimboyd's user avatar
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1 answer
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What is the best way to apply to all indexes after getting the attribute value in Geometry Nodes?

Thing you want to do After obtaining the maximum value of the cube's Y vector, move the ico sphere by the maximum value In the image below, the maximum value of the cube's y-axis vector was saved ...
vector man's user avatar
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38 views

Light particles/Light streaks effect

I am trying to recreate an animation seen here: https://www.youtube.com/watch?v=eTes6yYH4iU However, I am unable to recreate the light lines seen in the video. I have achieved similar to wanted ...
I. A.'s user avatar
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48 views

selecting geo node extrusion to loft to a 2nd mesh

I have a geonodes mesh and an imported .stl mesh and want to connect both meshes so they form a manifold body later for 3d printing. when working with nodes I cant select the voronoid edge created in ...
chubaka's user avatar
  • 15
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0 answers
50 views

Geometry Nodes Simulation: Make point cloud react to Objects moving at a certain velocity

I want the points to move away if certain objects are too close. But I want the points to change their velocity based on the objects velocity. This is the complete node tree: To reach my goal I ...
Lucho's user avatar
  • 105
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Exporting geo nodes animation of a deforming mesh to glb

I have a very specific question about exporting my blender geo nodes animation in a glb file. The issue I face right now is that part of the animation I built is not getting exported. I need it as glb ...
lenez's user avatar
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1 answer
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How do I change the length of the secondary bone segments with Geometry Nodes

I am trying to make spines generated on a Bezier curve and have it 95% working. The rotations are all correct and the scaling is how I like it BUT I cannot figure out how to change the length of the ...
Nik's user avatar
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1 vote
1 answer
54 views

How to reference rotation of every instance

I'm trying out simulations in geo nodes and I want to have the cones (instances) to move around and follow each other, similarly to a school of fish. I currently have this set up, I want to get the ...
Felix Groves's user avatar
0 votes
1 answer
75 views

geometry nodes proximity issue when target object moved

1st image = correct instance endpoints on object 2nd image = incorrect instance endpoints not on object at new location seems they still target the original location watdo
meep's user avatar
  • 11
-1 votes
2 answers
101 views

Geometry Nodes: How limit function and activate the said function with an integer change or a click?

I'm making a scoreboard, and I want it to have a rotating animation that is activated once an integer value is edited. I have tried to rotate with tangent function, and it looks good, but I don't ...
Demeterino's user avatar
0 votes
1 answer
32 views

Create a single value for all vector values in property panel

I'd like to know how to create a single value for a vector that I can expose in the property panel as a user input. For example, I connect a value node to a vector. I control the three vectors with ...
JerryT's user avatar
  • 103
0 votes
0 answers
46 views

How works Principled Volume?

I created a Geometry Nodes (GN) node tree that simulates the smoke trail from a missile. The simulation of fire from the nozzle is done with emission, which is limited by a gradient. Its position is ...
Dmitriy's user avatar
  • 11
0 votes
0 answers
73 views

Displace mesh laterally using noise texture in geometry nodes

I need help with replicating the 'Choppiness' setting of the Ocean Modifier using geometry nodes. I can displace the mesh on the z axis and get a very close approximation of the Ocean Modifier with a ...
Jon Rowe's user avatar
3 votes
4 answers
313 views

Connecting object vertices between objects in geometry nodes with lines

Using geometry nodes, can I create curves between all vertices of two objects? I'm hoping to produce the following result, where you can see all three vertices of each object are connected resulting ...
Thomas McMahon's user avatar
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0 answers
38 views

Loft Curve Using Captured index values

Problem: I cant find a solution to capturing the position of some index values set on some curves to correctly loft a curve over 3 other curves. I have had a lot of help from SOZAP on blender artists ...
ben's user avatar
  • 319
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0 answers
20 views

How can transfer data from the point domain to the face corner domain

I could use some help with transfering data between domains. I want a value stored in the point domain and value coming from the edge domain interpolate to the face corner domain,so I can adjust the ...
M3D's user avatar
  • 31
0 votes
1 answer
92 views

Geometry Nodes messes up Vector Displacement

Please help me check out the Maths of these nodes. I’m combining the Shader Nodes and Geometry Nodes to create something. This “Multiple Balls” object is using Geometry Nodes to assign “Individual ...
Orange Cat's user avatar
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0 answers
31 views

I am trying to make procedural spines but they do not work each time I draw a new curve

I am trying to create a quick way to make spines along drawn curves but am somewhat new to geometry nodes. The circled spine was the first and the other three are new. Each one seam to act differently ...
Nik's user avatar
  • 1
0 votes
0 answers
15 views

Blender Doughnut Sprinkles: Replacing points with Cylinder object does not preserve scale of Object

New to blender and doing the doughnut tutorial. For some reason, When I link the Cylinder Object Info node into the Instance on Points Node, the cylinders that appear on the points are microscopic ...
houstonium's user avatar
0 votes
1 answer
36 views

Distribute Points on Faces on small objects

Obviously i'm working on a donut. The points are huge, larger than the donut itself. Is there any way to adjust the point size? My donut is about 10cm in diameter. Yes i know my instance on points ...
Michael's user avatar
  • 101
0 votes
2 answers
65 views

Align all elements to point toward center

Hello I need to align the green arrow toward the center in Geo Nodes. I can not figure it out! Please could someone help me. I would like the green arrows to all point toward the center but I don't ...
Darrenjack's user avatar
1 vote
0 answers
30 views

Geo Nodes scattering is different in solid and rendered view

I am scattering moss assets on all the faces that face in z direction. I didnt get it to work until I changed from rendered view to solid view and there it is exactly how I want it to be. Not sure if ...
patrick823's user avatar
0 votes
2 answers
51 views

Color mapping instances of objects based on custom properties

I recently started learning blender to complete an assignment from work. I have zero prior background in 3D. I have this materials set up to color map an object based on a custom property that I have ...
Tototony's user avatar
3 votes
3 answers
265 views

concentric cylinders in geometric nodes

In Geometric Nodes, I wanted to build concentic cylinders that never stop growing, over 1,800 images. I succeeded, but the setup is very cumbersome. For each cylinder, you need about ten nodes. For ...
SergioHo's user avatar
0 votes
1 answer
66 views

Shrinkwrap Effect in Geo Nodes?

I am wondering if the following is possible. I am hoping to 'shrinkwrap' the Hexagon pattern to the surface of the model. Difficulty I have is it needs to be done in a non destructive way. If you take ...
Neil McNally Design's user avatar
1 vote
1 answer
36 views

I want to unify the x-axis of the selected face edge vertices to the minimum value x-axis

I want to unify all the duplicates created with repeat zone to the min value of the x axis I tried moving it using set position. Selection could control the minimum x vector of each replicated mesh ...
vector man's user avatar
0 votes
1 answer
38 views

Implicit conversion from "Position" to "UV map"

Could Someone PLEASE help me to understand this concept? I apologize for posting my question multiple times on this and other forums, but I’m still having trouble understanding it. I have read all the ...
Orange in Dark's user avatar

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