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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1 vote
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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 ...
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
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, ...
• 1,186
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=...
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 ...
• 183
606 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:...
1 vote
372 views

Geometry node booleon material [duplicate]

Hi any idea to insert color from other booleon object in geometry node.
• 447
1 vote
3k 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 ...
1 vote
159 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 ...
• 139
1 vote
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?
• 592
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 ...
• 51
1 vote
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 ...
1 vote
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
• 592
2k views

Is Volume distribution for Geometry Nodes available at the moment?

If it is, how can I achieve the effect?
• 592
39 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 ...
• 21
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?
• 377
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 ...
• 121
13k 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 ...
• 1,034
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. ...
• 828
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 ...
• 1,034
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 ...
• 76.6k
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 ...
• 1,034
1 vote
937 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.
• 121
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 ...
• 53
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 ...
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 ...
588 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?
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? (...
88 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 ...
• 60k
1 vote
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 "...
• 81
475 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 ...
• 143
1 vote
949 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 ...
• 11
1 vote
319 views

Geometry nodes attribute sample texture precision?

So i've been using the attribute sample texture node in blender 2.93. unfortunately it is very unprecise. in this image the red objects are scattered according to the texture while the white pattern ...
• 329
1 vote
587 views

How to remove shadows appearing inside material?

I've been following a tutorial on geometry nodes, which uses gumdrops and sugar for context. The geometry node set up for the gum drop is: For the material of the gum drop I used the following shader ...
• 121
1 vote
2k views

Geometry Nodes: How can I make some instanced object disappear when they reach a Z-scale of zero?

I have a geometry nodes setup that adds instanced cylinders across a circular plane - I'm using a vertex proximity modifier (driving attribute "Displacement") and a sample texture node to ...
• 31
1 vote
3k views

How to distribute objects ONLY on vertex groups in geometry nodes?

Thought this would be easy but have been struggling so much with this. I have created vertex groups (indicated with red color) on a big terrain plane and now I'm trying to distribute objects only ...
• 117
901 views

Can you use geometry node data to affect the material of instanced objects? (E.g. scale changes color)

Specifically, is there any way to change the color of the instanced cubes based on their scale attribute?
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1 vote
375 views

Instance Objects on a Line Mesh or Spline

I want to create an antennae for a wasp that I could move around easily for animation. I want to use cone objects that are instanced on a line and are oriented to the next point. I thought about using ...
15k views

Geometry Nodes - How to randomise rotation around just one axis

When using geometry nodes to distribute points across an object, and then instance those points with another object (i.e. the Point Distribute and ...
• 1,310
4k views

Influence Geometry Node "Point Distribute" density based on distance to empty

I've been playing around with the new Geometry Nodes features in the 2.92 version of blender, using it to distribute objects on another mesh. The way I have it set up is that when an empty gets close, ...
• 236
19k views

Is it possible to apply Geometry nodes? [duplicate]

I have used geometry nodes to scatter objects at the vertices of a plane. I'd now like to apply this so it becomes a mesh and then I can export it into other software. Is this possible in 2.92 or any ...
• 91
5k views

Using Materials with Geometry Node Modifier

Since experementing with the newest Verison of Blender (2.92.0) I work heavily with the Geometry Nodes. But the documentation is very low quality. I was able to model different objects and join them ...
• 153
1 vote
709 views

Attribute Randomize node is missing 'add'

i am following a tutorial and the node is missing the add option.
• 376
4k views

How can I use local rotation on objects created with geometry nodes?

I have geometry nodes to spawn in objects all over my mesh. Currently they rotate with the mesh, so on a sphere they all point outwards, which I want. But I now want them to be rotated around their 7 ...
• 229
1 vote
930 views

What is "Factor" in Point Scale (Geo Nodes)?

If I want to use this node on the "Attribute" mode, how can I use it? what is it used for? I tried to play by typing some built-in attributes next to the Factor input. It changed the scale ...
• 796
5k views

Geometry Nodes: "Attribute Randomize" - What are the Attribute Variables?

I am attempting to use geometry nodes to scatter stuff and I have a handle on the basics of the Point Distribute - Point Scale - Point Instance chain that allows for basic scattering. However, I am ...
• 724
2k views

How to apply driver based on geometry-node-generated coordinates

I had an idea that I'm attempting to implement with Blender geometry nodes. Basically, a swarm of scarabs, which should open and close their wings when their z-height is close to a certain value. I've ...
• 1,190
605 views

GeoNodes. Random Rotation from normals

Let's say I have a log and I need to place moss or lichen on it. I make a bunch of nodes as in the screenshot below. But how do I make this moss rotate along the conditional Z-axis, not global, but ...
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