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.
1,361
questions
1
vote
1
answer
9
views
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 ...
- 2,131
1
vote
1
answer
13
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 ...
- 1,732
1
vote
0
answers
7
views
How can I transfer instance UV after realizing without applying the modifier?
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?
2
votes
1
answer
9
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 ...
- 17.4k
2
votes
0
answers
12
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 ...
- 21
0
votes
0
answers
7
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 ?
- 135
1
vote
0
answers
13
views
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 ...
- 73
2
votes
1
answer
147
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 ...
- 17.4k
2
votes
1
answer
16
views
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 ...
- 17.4k
1
vote
1
answer
23
views
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 ...
1
vote
0
answers
10
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 ( ...
- 11
0
votes
0
answers
21
views
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?
- 9
2
votes
1
answer
62
views
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 ...
- 23
1
vote
0
answers
31
views
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 ...
- 11
2
votes
2
answers
46
views
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/...
- 121
1
vote
1
answer
16
views
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 ...
- 15k
1
vote
1
answer
23
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 ...
0
votes
0
answers
12
views
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 ...
- 11
0
votes
1
answer
23
views
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 ...
- 21
0
votes
1
answer
44
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 ...
2
votes
1
answer
59
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 ...
- 25
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 ...
- 13
2
votes
1
answer
31
views
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 ...
- 71
2
votes
1
answer
48
views
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 ...
0
votes
0
answers
37
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 ...
- 2,052
5
votes
1
answer
58
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 ...
- 17.4k
3
votes
2
answers
59
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 ...
- 151
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 ...
- 13
1
vote
1
answer
24
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 ...
- 11
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.
- 43
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 ...
- 1,203
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:
...
- 31
5
votes
1
answer
101
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 ...
- 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:
...
- 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 ...
- 593
0
votes
0
answers
41
views
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 ...
- 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 ?
- 259
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 ...
- 202
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 ...
- 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 ...
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 ...
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 ...
- 93
2
votes
0
answers
51
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 ...
- 21
-1
votes
2
answers
61
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 ...
- 492
0
votes
2
answers
41
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
...
- 967
0
votes
1
answer
42
views
Operator bpy.ops.node.tree_socket_add.poll() failed, context is incorrect after trying to create new socket in geometry input
i'm trying to create a Geometry Nodes->group input->new socket and it just shows:
...
- 1
4
votes
2
answers
81
views
Create a quadratic bezier from vertices of three different circles in Geometry Nodes
Im have three circles with the same resolution, and I was wondering how could I take a vertex from each circle and use it to create a quadratic bezier.
For example, take the first vertex of the three ...
- 169
2
votes
2
answers
37
views
How to link pixeled texture between Geometry nodes and Material?
I'm trying to make a procedural object where I can put a pixel art texture and get a voxel object. I want to be able to change one image and have either the geometry nodes or the material ...
1
vote
1
answer
21
views
Multires modifier and geometry nodes
I have sculpted a model using the Multiresolution modifier. This lead to pretty dense topology. Now I would like to use a ...
- 492