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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Geometry nodes UVMap Point distribute mask

Having some trouble with Point instances not appearing where expected using a UVMap as a mask. Using a simple Black,White image and UVMap to denote each Faces edge, so Points should only appear on ...
Sir_Scofferoff's user avatar
3 votes
1 answer
2k views

How to add material to mesh generated by geometry nodes

What I did is the following: I created a new material and set the attribute "material index" on every face to 1 (0 doesn't seem to work). However this does not seem to have an effect on the ...
TheFibonacciEffect's user avatar
6 votes
1 answer
1k views

Geometry Nodes: Is it possible to transfer an attribute from point cloud to instance?

One situation that I often encounter while making animations with geometry nodes is the transfer attributes from a point (in a point cloud) into an instance that's created using that point. A typical ...
nikokoneko's user avatar
4 votes
1 answer
4k views

Get Point Coordinates generated with Geometry Nodes?

Say you generate some random points using Geometry Nodes, how can you get all those point coordinates using the python api? The only hint I have is that the point coords are located under Point Cloud ...
Armored Wolf's user avatar
3 votes
1 answer
4k views

Geometry nodes: how can I get a different random float (or seed) for each object?

I've never used geometry nodes before, but in a project I'm working on I want to randomize the scale of about 200 copies of the same object so I figured I would try geometry nodes. In shader nodes you ...
Alexandre Marcati's user avatar
4 votes
3 answers
3k views

Assign random material to whole object using Geometry Nodes

I have a Geometry Nodes setup which distributes a cube on an icosphere. I want each of those cubes to have a different material and so on the original cube I created several materials (images of a cat,...
hellocatfood's user avatar
2 votes
0 answers
623 views

How to turn an attribute to an integer output with geometry nodes

I want to use a custom attribute as float/integer output, is that somehow possible? e.g. drive the radius of a Circle by an attribute. Like this:
Chris's user avatar
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8 votes
1 answer
2k views

Geometry Nodes - rotate point along curve tangent

How can I rotate each point so that each follows the tangent of the curve using geometry nodes? Right now, every point’s rotation is the same.
waylonion's user avatar
  • 429
4 votes
2 answers
2k views

Geometry nodes after Array

I am exploring the new geometry nodes, my goal is to create a very simple procedural tree: a brown cone and a few green pyramids on top of it 🌲. I would like to apply random variations to the ...
Isolin's user avatar
  • 251
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0 answers
186 views

Is it possible to add boid behavior to a Geometry Node point distribution?

Specifically, I would like to know what the vector is to the closest other point created in geometry nodes. I created them with the standard Point Distribute. This is basically Boid behavior, where ...
Michael Macha's user avatar
0 votes
0 answers
52 views

I can't find UVdata from shadernodes [duplicate]

I made a UV position of a square mesh, which is located at 0〜3 lines in the spread sheet, in geometry nodes.But I can't find it from an input UVdata node in shader nodes. How can I find it?
KaraC's user avatar
  • 71
2 votes
1 answer
1k views

Can I set an instance's custom property with an attribute node?

I've successfully created a little "pointed cube" object with geometry nodes - a cube with a pointed "roof", where the roof height is controlled by the node setup: so there is an ...
KevinS's user avatar
  • 21
2 votes
1 answer
530 views

Angle issue in Point Rotate node. [Blender 2.93.0]

I am trying to generate a circle from points turned towards the center and for some reason magic (or a bug) happens. As you can see, for four elements the angle is 90 degrees, but in radians, ...
Den Ya's user avatar
  • 23
5 votes
1 answer
3k views

Geometry nodes convert to instances

Can I convert the instances made with geometry nodes into real instances? If so, how? When I apply the modifier, it becomes one mesh instead of separate instances. I am using Blender 2.93 LTS
Zak Nelson's user avatar
0 votes
2 answers
2k views

Choose to display one item in collection with geometry nodes

I have a simple collection with meshes named 1-3. How can I create a geometry node graph such that I can animate the selection between these meshes? In other words, how can I display meshes 1-3 like a ...
Warlax56's user avatar
  • 211
1 vote
1 answer
3k views

Geometry nodes How to fill the object with particles?

How can I fill the object with some points in geometry nodes? Point distribute node place dots on the surface, but I need them to be inside the object randomly
3DBear's user avatar
  • 723
9 votes
2 answers
4k views

Flip Normals with Geometry Nodes

I have geometry being created through geometry nodes and I am am trying to flip the normals on this duplicate geometry. However, it appears that normals are a read only attribute in the geometry nodes....
BenignBrett's user avatar
3 votes
1 answer
2k views

Geometry Nodes - Incremental increases & controls

I found this youtube clip which shows exactly what I'm trying to do. At about the 10 second mark of the linked video, he shows controls working as integers. That in a nutshell is what I want to do. I'...
Burnart's user avatar
  • 33
1 vote
1 answer
2k views

How can I align my points/models rotation along the model surface

I'm using geometry nodes, and trying to align my instance geometry around a sphere, however my geometry is not rotating along the surface of the sphere. The geometry is sticking straight up. I know I ...
Steven DiLeo's user avatar
4 votes
2 answers
1k views

How can I use nodes to make a Genshin-like grass material?

I have tried to make grass just like in Genshin, but it is still not like how I want it in EEVEE. Game Screenshot My Grass
Orange Cat's user avatar
8 votes
1 answer
2k views

Is there a way to create a dual mesh using geometry nodes?

I'm trying to create a dual mesh, as described by Alessandro Zomparelly, but procedurally using Geometry Nodes. I've only come this far, but now I need to dissolve the vertices of the original mesh, ...
wout's user avatar
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2 votes
0 answers
741 views

How to fill an object with curve/splines using Geometry Nodes? [duplicate]

Such effects are possible by using Extra curves addon (Add > Curve > Knots > Bounce Spline] and by animation nodes add-on (As explained in this tutorial: https://www.youtube.com/watch?v=...
Aizaz ul Haq's user avatar
3 votes
1 answer
6k views

Scaling along normals in Geometry Nodes

I'm trying to use geometry nodes to scale up a duplicate mesh along each faces' normal to "thicken" up the mesh. This can be achieved manually by scaling a mesh with Alt+S (Scale along face ...
BenignBrett's user avatar
2 votes
1 answer
603 views

Help: cannot find vertex_normal as attribute in 2.93 beta

I am following this tutorial on geometry nodes https://www.youtube.com/watch?v=DQVYieRfQBY&t=12s which is using 2.93 Apha. I couldn't find the alpha so I downloaded the beta. My issue is that at 3:...
pavelgreen's user avatar
1 vote
1 answer
356 views

Geometry node booleon material [duplicate]

Hi any idea to insert color from other booleon object in geometry node.
Mateusz 88's user avatar
1 vote
2 answers
2k views

How to draw Inputs from Geometry nodes modifier in a panel

I am trying to draw the inputs of the Geometry Nodes modifier to a panel, and I tried doing this ...
Rakesh choudhary's user avatar
1 vote
1 answer
157 views

How to instance geometry rather than Objects? [duplicate]

I'm trying to reverse engineer the awesome setup of Felipe del Rio here. I got as far as setting up an XY array with geometry nodes that instances objects using Line primitives. I want to repeat the ...
Rob van Wees's user avatar
1 vote
2 answers
3k views

Geometry Nodes - How to assign vertex group in geometry nodes?

I added a plane. Instanced objects on it. Assigned vertex group on it. (I'm stuck at this step) How do I make it look exactly like this by using Geometry Nodes?
Ian Ambrose's user avatar
4 votes
1 answer
3k views

Geometry Nodes sample texture attribute and materials

Using Blender 2.93 Geometry Nodes; I have a sample texture attribute used for scaling multiple point instances. Is there a way to use this "scale" to control the material color(s) on these ...
Ge53's user avatar
  • 51
1 vote
3 answers
5k views

How to distribute points along a single edge with geometry nodes

I have a mesh with a single edge/two vertices, which I've added a point instance geometry node instancing the "circle" mesh. What's the most practical way to change the amount of circles ...
ElOtroMiqui's user avatar
1 vote
1 answer
2k views

Geometry Nodes - How to procedurally subtract the unwanted part of a mesh after applying it with particles?

This is how everything looks at the moment This is what I expect the result to look like (partially instanced particles, partially original mesh) The nodes setup
Ian Ambrose's user avatar
3 votes
1 answer
2k views

Is Volume distribution for Geometry Nodes available at the moment?

If it is, how can I achieve the effect?
Ian Ambrose's user avatar
2 votes
0 answers
38 views

Exclude one point distribution from another [duplicate]

I'm an absolute newbie at Blender and 3d, and I'm trying to build a scene using geometry nodes. My problem is that this grass intersects the trees. Is it possible to mix point distribution nodes to ...
aywan's user avatar
  • 21
3 votes
1 answer
3k views

How could I set the dataType of a value in group input/output geometry node?

The default socket type is float, but I would like to set it into other types, as I marked in this picture : How could I do that?
Daedra's user avatar
  • 367
0 votes
1 answer
72 views

How to properly place Geometry in Geometry Node

I am looking for a way for the cutout object to be displayed on the vertical edges of the cubes in the blend file. I achieved this for now by creating a vertex group and by moving the cutout shape ...
copy paste's user avatar
13 votes
3 answers
12k views

How can I get a new random seed for every object using the same geometry nodes?

I'm making a small medieval city using geometry nodes in Blender 2.93, where each building is a separated object, but they all share the same modifier list (and the same geometry nodes). I added some ...
Dalibor-P's user avatar
  • 1,034
7 votes
2 answers
5k views

Geometry Nodes instantiate mesh primitives at points

I'm trying to instantiate line meshes with a random number of segments at the vertices of a mesh. Blender 2.93 has shiny new mesh primitive nodes to instantiate meshes in your geometry nodes network. ...
null's user avatar
  • 828
5 votes
3 answers
6k views

Using geometry nodes, how can I toggle between different geometries, similar to shader editor?

One feature that I use frequently in shader editor, is an option to toggle between different shaders or textures. It can look like this: Changing the value node on the left within the interval of 0.0 ...
Dalibor-P's user avatar
  • 1,034
10 votes
2 answers
7k views

Geometry Nodes: Rotate positions about a point?

I've wanted a Simple Transform modifier for ages.. using an Axis/Origin object, by vertex weight. I'm thinking Geometry Nodes will make it possible to construct our own. I would like to have been able ...
Robin Betts's user avatar
  • 75.7k
6 votes
2 answers
12k views

Using geometry nodes, is it possible to transform vertices, that are in a specific vertex group?

Let's say I create object primitive plane and I create a vertex group. I add one vertex of the plane into the group but leave the other 3. Is it then possible to transform that one vertex in the group ...
Dalibor-P's user avatar
  • 1,034
1 vote
1 answer
918 views

Where is the geometry nodes modifier?

I couldn't find it anywhere in the dropdown, I also couldn't find it in "experimental" tab in user preference.
Agil GA's user avatar
  • 121
3 votes
1 answer
1k views

Particle system not working with geometry nodes

I was working on a scene, and I wanted to try the new geometry nodes with rocks. I already had a particle system on the same plane. The problem is, when I enabled the geometry nodes modifier, the ...
RAVI's user avatar
  • 53
4 votes
1 answer
1k views

Creating a half tone like pattern with cylinders using Geometry Nodes

I want to create a pattern consisting of different cylinders. I definitely could create them row by row, but I am also planing to animate them - getting bigger and smaller and so on. In the next step ...
butterschleuder's user avatar
3 votes
1 answer
2k views

How do I assign to a vertex group with geometry nodes?

I'm working in Blender 2.93 Alpha (more details if needed), and I'm looking for a way to apply a solidify modifier to only a specific vertex group. However, I can't figure out how to assign pieces of ...
Caleb Chervenka's user avatar
0 votes
1 answer
578 views

Can I find Geometry Nodes in Blender 2.91?

I am new to geometry nodes and don't know whether they're in Blender 2.91 or not. If not, can I add them into 2.91 somehow?
7P ZOHA FATIMA's user avatar
0 votes
1 answer
248 views

Followed Blender Guru's Geometry Node tutorial (gumdrops), have some issues with how it looks

I followed the tutorial as closely as possible, have the exact same settings (according to my knowledge) but it does not look nearly as good. It's too transparent. Can someone tell me how to fix it? (...
PeteThePugger's user avatar
0 votes
1 answer
87 views

why are my cylinders stretched if i use this geometry setup

i have this very simple geometry nodes setup: result is: my cylinders are stretched. I would have expected that the cylinder form is the same, but the just got bigger distances. Why is that? blend ...
Chris's user avatar
  • 57.8k
1 vote
1 answer
1k views

How to use Vertex Groups to determine the distribution of an object in geometry nodes?

I am using the new Geometry Nodes to put chocolate chips on a cookie. I have weight painted the cookie shape to keep the chocolate chips on the top of the cookie. If the vertex group is named "...
Soup's user avatar
  • 81
4 votes
1 answer
466 views

How to drive a node group in Geo Nodes Blender 2.9.3a?

I’m struggling with geometry nodes. I had a node group that generates a flower-like object based on parameters. Each copy of the node group generates a separate set of geometry which I can join to ...
Val's user avatar
  • 143
1 vote
1 answer
907 views

How can I call the individual parts of the position attribute vector (X, Y, and Z) as values in geometry nodes?

When working with geometry nodes, I know that Separate to XYZ can be used to separate vectors such as Object Info > Position Vector into its three individual components, but I'm unsure how to ...
Zinteger's user avatar