Questions tagged [geometry-nodes]

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

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How to animate a box opening using geometry nodes only?

I've read quite a few questions here about animating a box opening, but is this possible to do using only geometry nodes? The animation can be a box opening from any side, so I guess even a simple ...
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3 votes
1 answer
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Why can't this simple object be fed with a float value?

I want to get the length of the Y axis when a circle rotates dynamically changing the length of a cylinder, but the connection of the geometry node doesn't seem to work, I see both the output and ...
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3 votes
1 answer
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How to duplicate a collection of meshes along a drawn curve?

I have a collection of different objects (for the sake of this example lets say a sphere, cone, and cube) as separate objects in the same collection named "primitives". I want to be able to ...
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Geometry Nodes - Align Monkey head to random placed Bodies

How to get rotation of instances? I want to place monkey head on bodies with proper alignment
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1 vote
1 answer
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What's the best source/way of learning geometry nodes? (Except of the basics) [closed]

This question could be marked as opinion based or off-topic, but to be honest, there are few places to ask this. There's this question which could be an answer, but I feel it's too related to ...
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2 votes
1 answer
72 views

How to connect, by closest distance, vertices together in geometry node?

I have a bunch of points (vertices), they may, or may not be aligned to form a path they may, or may not be at regular interval distance from each other they have a completely random index value How ...
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How can I transfer instance UV after realizing without applying the modifier? [closed]

I need to export an Geo nodes animation as alembic file without loosing the UV maps of the instances to use the animation in Unreal Engine 5?
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3 votes
1 answer
39 views

GN: Can we do backface culling for points/instances?

With Geometry Nodes, is it possible to create a backface culling type effect for instancing faces? That is, prevent faces the camera will never see from populating with instances? Really the question ...
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2 votes
2 answers
50 views

Given an outside curve object, how would I fill it with quadrilaterals using geometry nodes?

I am trying to make the inside of the curve be filled in with quadrilaterals, using the fill curve node does not work well for me because it creates tris or ngons, which in my experience do not work ...
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0 answers
12 views

Rigging instances of a character

I have a rigged character that I want to duplicate many times using geometry nodes, but with different postures. Can I apply random rigging using Blender geometry nodes ?
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1 vote
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Displaying an output attribute in the Properties window of the geometry nodes modifier

I am creating a tool inside Blender using geometry nodes. To display the view frustum of a camera I let the user enter the vertical field of view. My nodes compute the horizontal field of view (see ...
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2 votes
1 answer
159 views

GN: What would this legacy "snow" setup look like in 3.0+?

I'm looking over a CG Cookie post from last year when 2.93 was released and there is a section dedicated to Geometry Nodes with a node tree I would like to recreate. But it uses nodes that are now ...
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1 answer
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How to display calculation time above nodes?

I was watching a video tutorial in which the author has his Geometry Nodes looking like this (screenshot): Notice the 0.17ms and ...
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1 vote
1 answer
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Trying to colorize by instance max height in Geo Nodes

My doubt is pretty straight forward: I have geo nodes grid with a bunch of instances with randomnized height. I want to colorize each instance depending on their height. I know that I need to somehow ...
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1 vote
0 answers
11 views

Can i convert a textured mesh to a pointcloud for rendering purpose?

I was wondering if there is any way of converting a 3d mesh model with textures into a point cloud that could be rendered as a png? Im a blender begginer so I have been trying it with geometry nodes ( ...
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Export geometry nodes to FBX

We have made a animation using geometry-nodes and want to use this in an AR setting. For this we need a FBX or GLTF file. Is there anyway to export a file like this without losing the modifiers?
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Intersect edges in geometry nodes

Sverchok nodes have node: "Intersect Edges", which create vertex on intersetion edges (in one object), like on the picture below: Is it possible for Blender 3.1 or 3.2 to get this solution ...
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1 vote
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Make quadrilateral curves the exact size of the faces they are on in geometry nodes

I guess that I can get an area of each face by using "face area" node but what I do not understand is how to use this information. I need each point to have the exact size of the faces they ...
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2 votes
2 answers
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Put scaled instance in the center of each edge in Geometry Nodes

I want to create sort of a engineering structure. I want to model an object "the traditional way" and then, in Gemoetry Nodes, put a joint in each vertex of the original model and then truss/...
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1 answer
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How can I create some geometry for each material slot of an object with Geometry Nodes?

Is it possible and if so how could I create a piece of geometry for every material slot in an object using Geometry Nodes modifier? For example let's say I have a cube and it has 5 different material ...
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1 vote
1 answer
24 views

Non-destructive method to subdivide cylinder lengthwise (i.e. replacement for loop cuts)

I'm currently using a non-destructive workflow to build models for product photography. Here is my hollow cylinder/tube, constructed from a subdivided 2D mesh, with a boolean to remove the center ...
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Geometry nodes instances animation, then apply Physics?

I'm trying to add Physics to some Geometry Nodes instances. I have an animation in GN, where the instances moves up, then to the right, and then I would like to apply Physics to make those instances ...
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1 answer
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Blender Geometry Nodes - error No Named Attributes

On 3.2.0 - Attempting to follow tutorial https://www.youtube.com/watch?v=CwOHqH60X-0&t=28s In the image: Fence GEO is a cube; Object info is a curve of the chain link; Modifier shows two error ...
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0 votes
1 answer
47 views

Geometry nodes: sampling Z position from curve to mesh

I have a mesh that I want to bend along the curve, then move all vertices to match its Z position. Here's the process: Mesh in X length of the curve Bend the mesh to curve on XY plane Align mesh's Z ...
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2 votes
1 answer
61 views

How to unify the direction (Tangent direction) of the curve?

How to unify the direction (Tangent direction) of the curve, so that the size and face orientation of each window frame are the same after the curve transferred to mesh? ps:The above is the provided ...
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1 vote
1 answer
31 views

Delete the bottom half of a geometry along the Z-axis using geometry nodes

I just can't figure it out why it does not delete half of a mesh. Trying to do so in geometry nodes. I want to delete the bottom half of it along the Z-axis but I can't, it acts like it has only 6 ...
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1 answer
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Rotate edges in global space around their first vertex in Geometry Nodes

I have some mesh edges and would like to rotate them around a global Z, using their first vertex as the origin for that rotation. So far the setup has a couple successes: I can rotate around the ...
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1 answer
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Geometry Nodes: allign object based on procedural geometry

Hello! I'm working on a Geometry Nodes procedural project, and I would like to improve something within the system: as simplified in the picture shown, I'm starting with a cube with some subdivision ...
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0 votes
0 answers
39 views

Geometry Nodes : handle each spline individually

using Geometry Nodes on a curve object, is it possible to handle each spline separately ? For instance, I would like to compute some stuff depending on each spline's length. But the Curve Length Node ...
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  • 2,052
5 votes
1 answer
59 views

GN: How to Transform (scale or rotate) relative to a "pivot point"?

Often when modeling I will transform with the 3D Cursor as my Pivot Point. This is very useful, but I don't know what the equivalent method would be using Geometry Nodes. How can I scale or rotate ...
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  • 17.4k
3 votes
2 answers
61 views

How to make a circular grid in geometry nodes?

I was following Blender Guru's latest tutorial of LED in geometry nodes (https://youtu.be/_TYD-CRDGXI). I wanted to get the same results but on a circular grid. [Model Below] Blender Guru uses a grid ...
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1 vote
1 answer
14 views

Geometry Nodes - Weight Paint is not affecting "Set Position" smooth

I am trying to make a procedural terrain with GeoNodes. My weight paint is not affecting the Set Positions Node in the way, that it takes any weights into account for the translation/sculpting. It is ...
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1 vote
1 answer
25 views

Why are Points not Generated on the Mesh Surface?

How do I properly instantiate objects onto the surface of the mesh? I just started to do a blender youtube tutorial but when I try to recreate a geometry node the objects that I want to appear on the ...
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4 votes
1 answer
88 views

How to influence the material with Geometry Proximity?

How can I use Geometric Nodes to make the cubes glow smoothly as the sphere approaches the cubes? The closer the sphere, the brighter the cubes glow.
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1 vote
1 answer
26 views

Create points on faces around the location of another object

Using 3.1. I can't find how to use the geometry nodes to distribute points around the location of another object in spite this is demonstrated in this tutorial (at 45:40) made with version 3.0. The ...
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3 votes
2 answers
43 views

Randomly grouped objects in one line

I want to create a random grouped number of objects (from collection) along a straight line. Unfortunately I can't do the grouping so that there are the same objects next to each other. Currently: ...
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5 votes
1 answer
103 views

How do I set value node to #frame using python

when adding a Value node through the geometry node tree editor I can enter #frame in the value field to have it synced up with the animation frame index (for ...
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  • 108
2 votes
0 answers
40 views

Using python to batch export geometry node generated objects

Using python to batch export geometry node generated objects. I can export an object to an STL file using python with the script below: Script: ...
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  • 2,610
2 votes
1 answer
42 views

How to hang curves between two points using Geometry Nodes?

I'm trying to create a procedural power line generator with Geometry Nodes. I have a single pole which I instance across a plane. The pole object has separate materials on the faces where wires are ...
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0 votes
0 answers
42 views

Cross Road in geometry node [closed]

I'd like to do corss road in geometry nodes any ideas.
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0 votes
1 answer
22 views

Control (move) vertices in a vertex group by a control mechanism with Geometry Nodes

I would like to create a general control mechanism for a vertex group. As the image shows, I would like to be able to move vertices (they belong to a vertex group) with some control mechanism (a ...
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  • 176
0 votes
1 answer
34 views

Trim by length in geometry nodes

Hi I'd like to trim curve by length but geometry nodes shows the same length for all curves. Any Idea how to fix it ?
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0 votes
1 answer
23 views

Where is named attribute blender 3.1.2?

Sorry for this real nonsense question of mine but can someone tell me where is (or how to accomplish ) named attribute in blender 3.1.2 ? the reference question is here where it has been used : How to ...
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2 votes
3 answers
180 views

How making only small hills flatter in landscape?

I have a landscape where I only want to make the small hills and bumps much smaller. However, the basic shape and larger rocks should be preserved. Is there any tool etc. with which you can only make ...
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  • 327
1 vote
1 answer
37 views

How to create faces of cubes missing their top and bottom faces in Geometry Nodes?

I'm still working on a way to create modular houses with geometry nodes. This is the result I have and the input geometry I use. I'm currently getting stuck at creating floors. Here is the geometry I ...
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2 votes
1 answer
24 views

How to apply geonodes while retaining UV mapped geometry materials?

I've seen similar questions but this one is probably the most edge case. I have geometry with UV mapped textures: But when I toggle realize instances: Moreover I'm instancing meshes with dual slots ...
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3 votes
1 answer
32 views

Geometry Proximity with Instances as the Target

I have setup a simple scene to try and achieve this effect. I have two sets of mesh objects distributed on faces and instanced on the same grid. The first set, the cylinders, cover the whole grid. The ...
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2 votes
0 answers
52 views

Apply material / texture to each generated mesh geometry (face) individually

With geometry nodes, I generated a more complex mesh procedurally from the faces of an ico sphere by splitting edges. Here is my node geo node setup: Now I wanted to apply a certain material, created ...
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-1 votes
2 answers
63 views

Separate disconnected geometry with geometry nodes

Is it possible to separate geometry, that is not connected, with geometry nodes, similar to Separate -> By Loose Parts in ...
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0 votes
2 answers
42 views

Why does Script not add Input to Active Modifier?

Make sure the Geometry Nodes editor area is visible then select the default cube and execute the following script to add a Geometry Nodes modifier to it with id name GeometryNodes ...
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