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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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1 answer
22 views

Geo Nodes - Deform Object to Curve

I have found the setup to imitate the curve modifier with geometry nodes. And sofar it works great. I have however one problem. The curve modifier keeps "looping" the object around the curve,...
2 votes
1 answer
764 views

Self-collision particles Geometry Nodes - Simulation nodes

Could somebody figure out how to detect self-collision on particles created in Geometry Nodes? I'm using 3.5 alpha-simulation nodes. UPDATED(I'm using geometry proximity node and the attribute "...
0 votes
0 answers
15 views

Geometry Node not working

So, I've recently installed Blender 4.2 and geometry nodes aren't working. I don't know much in geometry nodes or how to use them so maybe if someone can help me add water droplets on my can.
0 votes
0 answers
26 views

Create procedural triangles based on a given angle and length using geometry nodes

Create procedural triangles based on a given angle and length using geometry nodes. I'm trying to create triangles given the angle and the length using geometry nodes but when I check the angle with ...
1 vote
0 answers
29 views

How do you Combine Multiple Transformations into one Transformation Matrix with Geometry Nodes?

Stupid Question here, I want to combine multiple transformations into one total transformation. In my example, I have two Object Info nodes whose transformations, I ...
1 vote
0 answers
14 views

Vibrating liquid

I'm trying to re-create this scene: From the following showreel between seconds 12 and 14. https://youtu.be/W37A0YmkXTc?si=Nt8fJqB4K2mgIDts In real life this looks like what happens when there is a ...
1 vote
1 answer
565 views

I made a Node group in the Geometry nodes but it does not appear in the templates

I have the file saved in the asset library, but it does not appear whenever I try to add it in other projects
0 votes
1 answer
51 views

How do I import an SVG as one path object instead of many?

When I import my svg file, that I created in Inkscape, every shape in that file gets turned into its own path object, rather than one path object with all my shapes, as seen in the Outliner: This is ...
0 votes
2 answers
954 views

How to use collection of armatures with children meshes in particle system or Geometry Node Instancing?

I'm having a little problem right there: I have 5 different rigged zombies with different animations, so in the outliner they're armatures with a child mesh of the zombies: What I want to do is ...
0 votes
1 answer
19 views

Geometry Proximity - Permanent vertex attribute value switch ("Permanent/Temporary proximity trail")

Objective: Toggle/Trigger attribute value permanently/temporarily, even after controller object left the proximity area. Examples: Controller objects leaving fading trail in material color Controller ...
0 votes
0 answers
12 views

Geometry Nodes: Is it possible to rotate a point?

Is it possible to rotate a point or points in geometry nodes? I mean before using the points to place instances on them? I know how to rotate instances. But would the animation framerate increase if ...
2 votes
1 answer
897 views

Shade Smooth with Geometry Nodes not working on Rendering (Cycles)

I'm new to Blender and I'm trying to learn Geometry Nodes but I'm facing an issue: When I try to Shade Smooth with Geometry Nodes seems to only work on Viewport. I've generated Cylinders and Spheres ...
0 votes
1 answer
33 views

Geometry Nodes Simulation: Create a simple explosion

I would like to know how to create a simple basic explosion effect in Geometry Nodes using the simulation area. Example: I press play and all instances move away along the normal directions of the ...
0 votes
0 answers
19 views

Creating a trail of instances behind an object that moves along a curve in geometry nodes

I've been trying to create an effect that replicates droplets of water falling down a surface. I have droplets of water (as ico spheres) that move along curves that are on the surface of the object. ...
0 votes
0 answers
18 views

Geometry Nodes: How to get new geometry to face away from the geometry it is spawning on?

I'm super new to geometry nodes and Blender in general. I'm making the forest scene using geometry nodes and was hoping there's a way to calculate the leaves rotation such that they always face away ...
4 votes
2 answers
1k views

How do you invert a transformation in geometry nodes?

I need the inverse of a transform matrix, geometry nodes seems to have abstracted away all the matrix math. Is there an intended workflow I'm missing here? In the following image I'm pulling in the ...
0 votes
0 answers
23 views

How do I delete instances that overlap? [duplicate]

I'd like only one overlapping instance to be deleted. thanks in advance
1 vote
1 answer
36 views

Geometry Nodes: How Can I make an Organic Vein system?

I want to make a geometry system that takes the volume of a mesh and first makes a bunch of sphere instances in the volume (these are stars) then the system makes pathways and organic vein-like ...
2 votes
0 answers
23 views

How to animate a Balance Spring with Geonodes

It seems the question on how to animate a Balance Spring (or Coil Spring / Hairspring) as used in a watch escapement using Blender has been asked a few times before (here, here and here) but ...
0 votes
0 answers
23 views

multiply an object inside another one [duplicate]

I need to multiply one object (hexagons) inside another (as in the photo). So that it is strictly within the boundaries, also so that it is higher in the middle and lower at the edges
-2 votes
1 answer
22 views

Instance scaling up randomly with no random node using geometry nodes

I've been trying to make some capsules distribute on a surface, and it seems to be working fine, but the scale is weirdly skewed, as some of the instances are scaled differently from my actual model, ...
0 votes
0 answers
20 views

Disable geometry node for Shrinkwrap objects

I have a bottle and i put some drops of water on it with geometry node. But when i want to use Shrinkwrap modifier for put stikers on bottle, geometry node affect on those too. How can i fix this?
1 vote
0 answers
46 views

How to create a railing using geometry nodes?

I want to create something like this using geometry nodes to make it more flexible, currently im using array modifers. Now I have a bezier curve and a setup to add posts in it, but the problem is I ...
-4 votes
0 answers
30 views

4.2 Render paradox and trying to stop grass instances short along driveway [closed]

I loaded 4.2 and was working a shader/geonode setup to add grass. I'm trying to get the grass to stop at the driveway but the instances have rotation and flow onto the concrete. I tried splitting the ...
0 votes
0 answers
21 views

Tree Branches extrude out then in according to wire frame

The tree branches extrude out, and then back inwards, or are they simply confused about start and finish? i.e. which end is which? I am not sure how to fix this as I followed a guide that did not go ...
1 vote
1 answer
262 views

Geometry nodes: Falling Tetris blocks into position

I'm pretty new to geometry nodes and Blender in general.I've made a collection out of Tetris blocks in a 4x10 rectangle. Then I used a Instance to Points node on a plane to repeat this collection a ...
0 votes
1 answer
48 views

Making conjunction between instances and objects nice

I'm looking for a way to make the connection between instance and object in geometry nodes appear more natural. The edge at the connection is often hard, straight and artificial. I know that the ...
0 votes
1 answer
383 views

Scale object vertex groups by proximity to other object using geometry nodes

What I want to achieve in my scene: A dolphin is moving towards an object (the sphere in this case). The Distance to the sphere should determine the scale of the Dolphin but not by just uniformly ...
1 vote
1 answer
118 views

Peeling Effect: geometry nodes

How to make a Peeling Effect on geometry nodes for any geometry without using paint tools? In fact, I would like to make a geometry node like the image below, with cracks and peeling (curled in and ...
3 votes
1 answer
203 views

How to Create a Halftone Dot Effect in Blender Similar to This Reference Image?

Hello Blender Community, I'm trying to create a halftone dot effect in Blender similar to the one shown in the reference image attached. The goal is to have a series of dots that appear uniformly ...
0 votes
1 answer
24 views

geometry nodes hair refusing to render / set hair curve profile doesn't work

Trying to make grass that looks like carpet. I can't figure out how to add bulk to the geometry nodes hair curves so that it will render. The set hair curve radius modifier just wont show up at any ...
0 votes
0 answers
31 views

How can I stop the Geo Node particle system from falling through objects when collided?

I'm following this tutorial to create the particle collide simulation. Some of the particle did stop falling when particle is detected near the object, but most of them still fall through:
0 votes
0 answers
33 views

Creating Distinct Tree Crown Zones of Different Sizes with Geometry Nodes

I need help creating a procedural geometry nodes tree with splines. I want to distribute three "crown zones" of different sizes, from the biggest to smallest, like the tree on the left. Can ...
1 vote
1 answer
393 views

Donut Tutorial ep.10-Icing disappears from viewport but still in outliner

My icing shows in outliner but not in viewport or renders. I think the error happened after I cut and deleted “icing” object node in geo node editor and attached the sprinkles collection.. I’ve ...
3 votes
2 answers
248 views

Extrude mesh based on proximity to faces

I am learning Geo Nodes and trying to understand this: Why is the extrusion uniform and not based on the empty controller's position and different faces? I expected to see that the greater the ...
2 votes
1 answer
44 views

Need help with creating space between books (Geometry Nodes)

I need you guys help with creating space between the tilted books. In my geometry nodes, it does create the "correct" amount of space when the books are rotated to screen left, but not ...
1 vote
1 answer
1k views

im working with the hair curve and trying to attach the curve to a new mesh

I created a hair curve on a mesh and im trying to add the curve to a new mesh. when trying to play with the curve and make it look better a node show an error: ...
4 votes
1 answer
137 views

'noise value' in geometry nodes

I have this nodes setup in geometry nodes - using instance on points : I got as expected : but now , I want to generate 'noise' rather than 'random' but I can't find something like 'noise value'. ...
0 votes
1 answer
276 views

Geometry Nodes (3.0) Stable ID port is missing

There used to be the Stable ID socket on the Distribute Points On Faces node. Where did it go? My instances are "jumping". The manual says to use the ID > Set ID Nodes, but I cannot ...
0 votes
1 answer
297 views

Transfer Attributes from One Geo-Node to Another

TL;DR How do I transfer attributes from one geo node on one Object to another geo node on another Object? Hey guys, trying to ...
1 vote
1 answer
39 views

How do I do instance coloring with nodes in Blender 4.1?

For the life of me, I am unable to get instances of different colors using geometry and shader nodes. From what I've seen of other answers on here, there are two ways to get information from the ...
3 votes
1 answer
117 views

How do I maintain Bezier circle resolution when selecting fill mode "none" for processing with Geometry Nodes?

I have some (2D) Bezier circles (with resolution > 1) that I am transforming into nice smooth objects with a GeoNode stack: Fillet Curve (poly, as Bezier creates a ton more vertices and ruins the ...
0 votes
0 answers
29 views

Geometry Nodes conform array to curve - stretches when using multiple curves

I followed Erindale's Curve Deform tutorial (https://youtu.be/uv0E_FQLQYI?si=9VAH5HPmUdYv3C_y) which shows you how to deform an object along a curve (as the name suggests). I'm trying to extend it so ...
0 votes
1 answer
36 views

How can I best join more than two curves in Geometry Nodes?

I am trying to join three curves that are part of the same figure (joined using the join geometry tool). When I use the merge by distance tool, the join is correct if I merge any two of the three ...
1 vote
1 answer
32 views

How rotate instances to align with wall on geometry nodes

I'm making a procedural rock wall, the problem is that I can't make the columns align to the wall: Some columns are aligned but after a turn they continue to face the same direction. The base ...
3 votes
1 answer
72 views

Rotate instances randomly along Z-axis in Blender 4.1+

I'd like to rotate a bunch of instances randomly along Z-axis in Blender 4.1, but I don't want to use the deprecated Rotate Euler node. Also with the introduction of the new Rotation socket, things ...
4 votes
2 answers
254 views

How can I merge overlapping faces converted from a text string in geometry nodes, to avoid Z-fighting issues during rendering?

I'm using Geometry Nodes to create a string shaped plane. Here is the node setup and viewport: The english letter "X" is correct, but the intersections of the Greek letters are empty, so I ...
0 votes
1 answer
33 views

find vertex with highest value of named attribute

Here's a node setup that I thought would find the vertex with the highest value of a named attribute, namely the noiz attribute produced by a noise texture. Each ...
0 votes
1 answer
40 views

Geonodes texture doesn't show in viewport

When I'm using texture to adjust geonode, I can't see the intermediate result in the viewport. Is this a bug, or am I doing something wrong? The gradient texture works properly, as you can see from ...
1 vote
1 answer
5k views

How to align the rotation of an instance to object normals?

I am having trouble with Geometry Nodes in Blender. Basically, I'm trying to create some cables that have additional instantiated objects at the ends. I want the rotation of these objects to be ...

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