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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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Hide occluded vertices

Background Using Blender 4.1 and a wireframe modifier to project a mountain mesh as a blueprint. Subterranean structures must remain visible. I'd like to remove parts of the mountain that aren't ...
Dave Jarvis's user avatar
2 votes
1 answer
76 views

Curve Tangent direction always changing depending on extrude

my problem is that the curve tangent changing all the time the direction depending when I extrude one of the edges of a pre existing face: How do I prevent it from changing all the time?
Shiv0r's user avatar
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0 answers
18 views

Keep Stroke Width of Curve in GN [duplicate]

I want to add some stoke along curves, they have some angles. It can be done in panel Bevel.They have the same width. But when I use Curve_To_Mesh in GN, the width changed. How to get the same result ...
NatureK's user avatar
  • 943
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0 answers
39 views

Project Curve on Mesh - Geometry Nodes

I'm using geometry nodes to project an open curve on a mesh that is not flat. I have used raycast node but can't project the curve along normals (like a polygonal object). I have tried connecting the ...
Abdullah Al Sarfaraz Md Yeasee's user avatar
0 votes
0 answers
30 views

How can I get the orbs to stop jumping around?

Made with GeoNodes. How can I stop the orbs from jumping around? Version is Blender 3.1. Video Link: https://youtu.be/asyiEA4VYm0 File Link:
Martin Marino's user avatar
1 vote
1 answer
42 views

Spawn unique instance per point

I'm trying to instance a collection of images, such that each point has a unique image. When using a mesh to points node to create the points, everything works fine when set to Vertices, Corners, or ...
Black Fox's user avatar
  • 180
2 votes
1 answer
35 views

Is there a way to select the vertices of a mesh by the local axes of another object in geometry nodes?

I want to split the objects in a collection with a boolean and transform one side. In this case, it seems to be common to use mesh islands to separate geometry. But this is not useful in this case, ...
Misago's user avatar
  • 25
3 votes
1 answer
70 views

Constrain a Bounding Box Within Another Using Geometry Nodes

First post and very new to geometry nodes, so I might be way out of my depth here. What I want to do: Here is two bounding boxes generated in geo nodes from two different objects. I want to constrain ...
Max Johansson's user avatar
3 votes
1 answer
54 views

How do I delete all vertices above a line with Geometry Nodes?

I am learning to use Geometry Nodes. I have a triangulated grid with corner vertices at $(0, 0, 0)$, $(1, 0, 0)$, $(1, 1, 0)$, and $(0, 1, 0)$. I want to delete all vertices (and faces and edges) ...
Lawton's user avatar
  • 275
2 votes
0 answers
39 views

Geometry nodes reorders UV layers when using Join node

When using the Join Node and a vertex group of geometry I duplicate and join, UV maps are reordered. How can I ensure the UV layers maintain the original order when using Join Geometry Node? When ...
Zak Nelson's user avatar
1 vote
0 answers
39 views

How can I preserve Driver links between an add-on and Geometry Nodes?

Blender 4.1 makes it possible to create a Driver between an add-on driven value ("Copy as New Driver") and a Geometry Node value ("Paste Driver") but the link is working only ...
Alio's user avatar
  • 85
2 votes
1 answer
155 views

Menger Sponge Fractal creates weird outline on Cube surface when using Cycles

So I have very recently began to mess around with Geometry Nodes in Blender and since my scene required the usage of a Menger Sponge Fractal, I followed a YouTube tutorial to make sure I learned some ...
Stormfly's user avatar
3 votes
1 answer
70 views

Mesh created with Geometry Nodes is slightly shifted compared to mesh created with XYZ Math Surface

I was trying to complete my answer for this question. I'm creating an XYZ Math Surface via Add > Mesh > Math Function > XYZ Math Surface using the following parametric equations: ...
Harry McKenzie's user avatar
0 votes
0 answers
21 views

Why Does Geometry Node Mesh Boolean Work for Some Objects But Not Others?

I am using Blender 4.1, and am trying to create an animation in which an object is only visible while it is in the interior of a cube (which will be made transparent). To do this, I've created a very ...
RonE's user avatar
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1 vote
0 answers
35 views

Geometry Nodes: Is it impossible to make precise dimensions in this steel frame prototype method?

The goal with this node setup is to add geometry to edges and make them look like steel frames. The method bellow works well, but there's a problem, it's only precise for cubes. Anything different ...
Felipe Balmant's user avatar
0 votes
1 answer
36 views

How to reset or reverse instance transform without Realize Instances node?

I'm trying to reset or reverse instance scale. I have 3 Instances attach on Main object. Main object takes A as Instance, A takes B, B takes C. I set a group input named Scale Fac to scale instance (...
Velo Song's user avatar
4 votes
1 answer
188 views

How to create border outline?

I tried many different ways to create a border outline for my objects. The outline helper add on, to duplicate the meshes and convert the border edges to grease pencil and I tried Geometry Nodes. But ...
Pascal Meger's user avatar
2 votes
0 answers
42 views

How do I add delay to the effects of a geometry node?

I am creating a robot with 8 identical arms arranged in a circle (a bit like an octopus). I have modelled and rigged one arm, then I made a simple geo node modifier which rotates the arm separately by ...
Felix Groves's user avatar
0 votes
1 answer
49 views

How to get a random number only once per instance, in stead of for each vertex, in geometry nodes

I've built this rather complex way to create a box with tape on it in geometry nodes. This is because I need to create many different boxes according to specific size profiles. The setup works but I ...
Smitje's user avatar
  • 110
0 votes
0 answers
20 views

Geometry nodes: problem with intersect boolean of mesh and instances

I`m making a roof generator, and I have a little problem with intersect of meshes: And there is the result Here is nodes and geometry:
TosiX's user avatar
  • 1
1 vote
2 answers
48 views

Proximity colors between instances of a same pack

I'm trying to do a little effect where instances (any kind) on points would change their color based on the proximity of another instance. Thanks to some tutorials and questions here, I've ...
Zazou Z's user avatar
  • 13
3 votes
4 answers
262 views

Geometry Nodes - Fill Quadrilaterals That Intersect

I have a basic setup with two quadrilaterals that intersect in a sample blend here to demonstrate what I think should be a basic concept, but I cannot figure it out. For example, you can just create a ...
ChrisN's user avatar
  • 143
4 votes
3 answers
423 views

Create repeating geometry across a face

I'd like to create repeating instances of geometry over a single selected face of an existing mesh. Such as the small square cutouts in the pictured panel: I cannot use a material because the result ...
Jay's user avatar
  • 161
2 votes
0 answers
42 views

How can one randomize both instance topology and instance shading variation across object instances?

I created several parallel instances of a wooden beam object using the following Geometry Node Tree: And with the following Shader Node Tree: As expected, each instance of the beam has the same ...
Andrew's user avatar
  • 61
0 votes
0 answers
41 views

Geometry nodes simulation doesn't show in render

I'm trying to learn VFX in blender and decided to place my geometry node simulation inside a video. Unfortunately, despite everything working fine in viewport, the simulated object doesn't show in ...
some dude's user avatar
3 votes
1 answer
121 views

How to make instanced primitives' max/min coordinates to not be higher/lower than input mesh? (geometry nodes)

The goal here is to not let each instanced cube's position to go beyond the input mesh'. The cube primitive node is added as instances into points of the input mesh. However, the cubes are placed from ...
Felipe Balmant's user avatar
3 votes
1 answer
149 views

How Do You Randomly Translate Vertex Groups for Individual Instances for Instances on Points?

I've created several instances of an object on points along a mesh line (see below). I would like to disrupt the uniformity by translating the vertices at the left and right ends of each instance by a ...
Andrew's user avatar
  • 61
2 votes
1 answer
40 views

How can I add a Geometry attribute/ parameter to a Modifier Geometry Node and name it?

How can I give a name to a parameter of a Modifier Geometry Node? I have read: https://docs.blender.org/manual/en/latest/modeling/modifiers/generate/geometry_nodes.html https://docs.blender.org/...
Torsten Knodt's user avatar
1 vote
1 answer
50 views

How can I split and remove partially overlapping faces without Mesh Boolean?

I have managed to remove overlapping faces using the Geometry Proximity node. However, for intersecting overlapping faces, I couldn't figure out how to partially remove the overlapping face without ...
Harry McKenzie's user avatar
1 vote
1 answer
38 views

how to use geometric nodes to deform geometry instances with curves?

I followed this tutorial, but ran into a problem creating instances. What I want to do: I want the geometry nodes to create instances of the object I place as a reference and deform it along curves. ...
AquaMan's user avatar
  • 11
0 votes
0 answers
23 views

Repeat zone with raycast issue

I'm trying to follow this tutorial for creating a ball(s) bouncing inside a cube using geometry nodes. I figured I could go a step further and instead of repeating raycast nodes manually I could use ...
Broly's user avatar
  • 113
1 vote
0 answers
22 views

Instances moving along path want to duplicate and create an echo like effect

I have this set up which I like, it simply lets me slide the object along the curve. I was interested in knowing if it's possible to duplicate then offset the effect plus scaling down or up the ...
It's Just Chris's user avatar
3 votes
2 answers
147 views

Is it possible to animate a transition between two XYZ Math Surfaces?

Using the Add Mesh: Extra Objects add-on, I have set up a group of XYZ Math Surfaces Add > Mesh > Math Function > XYZ Math Surface which generate various parts of a single mesh object, with ...
Lawton's user avatar
  • 275
0 votes
0 answers
52 views

Maintaining collection structure when appending assets with Geometry Nodes modifiers applied to them

I marked an object as an asset. It has a complex Geometry Nodes modifier that uses "object info" and "collection info" nodes to import other objects. These referenced objects are ...
Pieter Léon's user avatar
2 votes
2 answers
111 views

How can I make the edge geometry fully join?

I want to convert edges into steel frames and ensure they are connected. On the left is a default cube with Geometry Nodes - the problem is that the new geometry of beams/edges doesn't fully join like ...
Felipe Balmant's user avatar
7 votes
3 answers
539 views

How to make an Equilateral Triangle Grid with Geometry Nodes?

I’ve been dying for an equilateral triangle grid mesh within geometry nodes for a while now! I was attempting to make an equilateral triangle grid that can be controlled by the input parameters ...
Obfuscate's user avatar
  • 647
0 votes
0 answers
41 views

How to append collections with GeoNodes in Blender while reusing data and maintaining object control

I want to append a collection containing objects with geometry nodes modifiers applied to them. After appending, I still need to be able to manipulate the individual objects in the collection as usual....
Pieter Léon's user avatar
2 votes
1 answer
119 views

How can I decrease the leaf amount by branch size?

I am trying make a branch with leaves, but there are 2 problems: I decrease the branch size by spline parameter, but the number of leaf Instances (Icospheres) doesn't change. How to decrease the leaf ...
Velo Song's user avatar
5 votes
2 answers
333 views

I don't get how the “edge angle” node works

I'm trying to figure out how the “edge angle” node works: I can't get the right angle on the right line, there's always an offset and I can't figure out where my mistake is. In the attached example, ...
Humfred's user avatar
  • 55
1 vote
0 answers
34 views

How to prevent Blender from renaming appended objects' shared data blocks

I'm running into an issue with appending objects in Blender. I have a file (File A) with several objects that share the same Geometry Nodes modifiers, Node Groups, and materials. When I append these ...
Pieter Léon's user avatar
0 votes
0 answers
27 views

Using a greyscale image as a weight map for point distribution

I imported this image with blender GIS using the basemap on mesh option. I'm trying to use this image as a weight map that distributes points randomly on my mesh, where darker colours indicates a ...
Samy Dupont's user avatar
2 votes
2 answers
194 views

Merge Curves via Geometry Nodes

I'm trying to create speech bubbles using Geometry Nodes, allowing for different shaped tails and positions of the tail. I can't figure out a method to join the curves in a smooth way such that the ...
Black Fox's user avatar
  • 180
2 votes
1 answer
220 views

Understanding The Purpose - Capture Attribute

I've been learning to use Geometry Nodes lately & stumbled upon a question. In the simple setup I made (showed in the screenshots) I use the Capture Attribute node in "Float - Point" &...
Nik's user avatar
  • 23
0 votes
1 answer
62 views

Geometry nodes: How to snap curves points to nearest surface?

I would like to snap all distributed curve points to the nearest surface of the source. See my example. In my example I'm distributing generated mesh lines on a source mesh (Torus). My goal is to ...
Christoph Werner's user avatar
3 votes
1 answer
484 views

How can I make text look like a digital message board with geometry nodes?

Here is what I am aiming for: Here is what I currently have: As you can see i've tried using a basic distribute points of faces node setup to turn my text into “pixels” but i don’t know how to make ...
Drawlistics's user avatar
0 votes
0 answers
35 views

in blender 4.1 is it possible to add vertex groups without pre-existing geometry with pre-existing groups?

I have only seen blender 3.0 workarounds. Is this no longer issue in blender 4.1? if it is no longer issue, how does one create group? I have tried 'named attribute' but does not work so assuming it ...
Matteh's user avatar
  • 23
0 votes
0 answers
34 views

How can I rotate the face normals in this way in geometry nodes?

How can I rotate the face normals in this way in geometry nodes?
mikhail lomakin's user avatar
1 vote
0 answers
35 views

Disintegration effect on several parts of the mesh using geo nodes

I have created Geo nodes with a simulation for a disintegration effect (I followed this video: https://www.youtube.com/watch?v=xlVuIh3td9g ). Currently, there is a boolean that determines where the ...
N03's user avatar
  • 455
1 vote
1 answer
48 views

Scattered objects are too small and moved to the side

I'm using Blender for the first time and I'm following the donut tutorial by Blender Guru on YouTube. I want to distribute 4 different types of long sprinkles on my donut icing. It worked with the ...
S12345's user avatar
  • 11
1 vote
1 answer
53 views

Trouble with point visibility at boolean intersection edge with Geo-nodes. Trying to make a disintegration effect

Im trying to make a disintegration effect using geo nodes. My plan is that when my boolean intersects the plane, particles appear at the intersection. My problem now is that when I’m trying to make ...
N03's user avatar
  • 455

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