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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Geometry Nodes - Array of objects with caps

This post was originally asking to solve a different issue with this node setup (gaps in between stacked GN objects), but as that issue has been solved by myself, the question has been edited, with ...
1 vote
1 answer
20 views

how do i mimic the result of color ramp in map range? also tips regarding map range on how to use it easily

I have been using the node tree in the image to have a Bezier curve displacing the geometry on a plane. I would like to know how to mimic the results of the color ramp in the map range? Also the ...
0 votes
0 answers
18 views

how to fill open loop polygon in geometry node

I want to make a polygon using "curve line" so the polygon is open loop ; then I used "Merge by distance" ; then I wanted to fill the polygon but i couldn't success ; then I saw ...
0 votes
1 answer
60 views

How to resize a cube to match the negative space between two planes in geonodes?

Edit: To be clear, I know how to resize a cube just by changing the the scale or dimensions of the model. I'm trying to figure out how to have the scale and rotation of a cube dynamically update to be ...
1 vote
0 answers
14 views

Generate Column and Line Charts Procedurally [duplicate]

I'm new to Blender and wanted some help with creating column charts and line charts, like you would in Excel. The need to be procedural I have hundreds of values for some charts, and altering each ...
0 votes
1 answer
64 views

Nose mask customized to 3D scanned faces, we want the edge of the mask to change depending on the face used

We are trying to make a model for a mask that we can fit perfectly to different faces. In the pictures below you can see that we have marked a black area, that should touch the skin on the face. We ...
1 vote
1 answer
33 views

Geo nodes: object color

I've been trying to find a way to get the object color in geo nodes, but can't find a way to read or write this property. Can anyone help me out with how this could be done?
0 votes
0 answers
12 views

When I put Object Info into Group Output In Geometry Nodes It say geometry cannot be retrieved from the modifier object [closed]

I think It maybe because I added a boolean modifier Is it because of this?
0 votes
2 answers
22 views

Using SVG image as curve profile in Geometry Nodes

I have a question regarding curve profiles in Geometry Nodes. Does anyone know if it is possible to use an SVG image profile directly as a curve profile in Geometry Nodes? (The SVG is already imported ...
0 votes
1 answer
17 views

Scaling instances along curve

Float curve node marked with red doesn't work as it should. It does so only when i delete group of nodes marked with yellow, but then i don't get random istances destribution in volume. Any ideas how ...
0 votes
0 answers
12 views

Append geometry nodes object with linked objects in object info nodes

I have a geometry nodes object that has several object info nodes. The objects in those nodes are all linked from another file. When I append the geometry nodes object in a new file, all the objects ...
0 votes
0 answers
25 views

How would I apply an image texture to a 'procedural object'?

I have created a node tree that uses a number of simple shapes (based around a cube or point) to create a more complex single shape (futuristic vehicle as seen below). I would now like to apply a ...
2 votes
2 answers
69 views

geo node: Specify index freely

I don't know how to specify the index like in this image. When using mesh island node, an unintended index is assigned. I ultimately want to control this tooth mesh along a curve using an instance on ...
3 votes
1 answer
41 views

How can I mix between two rotations in Geometry Nodes?

I have one object (Object A) and a second object (Object B). Object A's rotation is 0 degrees on the Y axis. Object B's rotation is 720 degrees on the Y axis. I want to blend between them in geometry ...
2 votes
1 answer
25 views

Bake a geometry nodes simulation and then offset in time

I'm trying to find a way to loop a geometry nodes simulation. It's a bunch of self-colliding objects, so I suspect the answer is going to be slightly hacky. My most functional idea is to bake the ...
0 votes
2 answers
54 views

Geo Nodes: Separately UV meshes created from a set of curves

I am creating a set of curves on an object using "Add/Curves/Empty Hair" then adding some hair curves in Sculpt mode. I am then using a Geo Nodes modifier on these curves generating a set of ...
10 votes
2 answers
5k views

Curve to Mesh with UVs in Blender 3.x?

How can I use geometry nodes to turn curves into a mesh and create UVs at the same time? When I use the Curve to Mesh node with a base curve and a profile curve, no ...
3 votes
2 answers
140 views

Geometry Nodes: Select profile and length loops independetely after curve to mesh

I am trying to capture the profile and length loops independently after converting a curve to mesh. So far it only works when the profile resolution is even. When the profile resolution is an odd ...
0 votes
1 answer
42 views

Animate instances rotating individually in Geometry Nodes

I'm trying to animate a series of tiles arranged on a grid that would flip over and show the bottom side. I want them to rotate in sequence but I can't get that to work. No matter what I do, the tiles ...
3 votes
1 answer
45 views

Geometry Nodes: scaling random faces does not work, scaling manually selected faces does. Why?

I used the curve to mesh modifier to instance a square grid into a curve. I want to uniformly scale random segments of the resulting "tube" in the xy plane. Capturing the indexes of the ...
1 vote
1 answer
28 views

How to use float curve node to flatten geometry from two sides rather than all four sides in geometry nodes

I am trying to show this vein being compressed from only two sides so it "pancakes" and flattens out rather than compresses circularly from all sides. As of right now I have two float curve ...
2 votes
2 answers
143 views

How do I get the index of both mesh lines to size them based on index?

so I am trying to make the points on my 2 mesh lines sized by index but the problem is that something weird is happening were one is working but the other is like now exactly how it should be, here ...
0 votes
1 answer
48 views

how can I apply the index to all objects at once?

Hi how can I apply the index to all objects at once? I want to remove some faces from many cubes at once. Now this is happening in order 1.2,3,4, etc. I want to leave the upper and side face of all ...
2 votes
2 answers
154 views

Curve tilt of instanced curves to follow sampled geometry

I have a node set up that requires curves to follow a plane. (the plane is manipulated outside of geonodes and the curves follow) Is it possible to have the curve tilt follow the normals of the plane? ...
1 vote
0 answers
20 views

Adding a simulation zone mess up previous nodes

I'm trying to animate the opening of a book (especially the pages), and the pages turning. For some reason, I can't add a simulation zone without messing up my current node tree. As if it was ...
2 votes
1 answer
145 views

How do I rescale parts of a text defined with geometry nodes?

I'm trying to remake the LUCASFILM logo with geometry nodes. I can set the position of the text, but I want to set its height. Except it's not just the height of each character; instead, the height of ...
1 vote
1 answer
42 views

How can I insert a custom implicit equation in blender, draw its associated 2D curve and then create a revolution solid out of it?

I want to write down a parametric equation for a curve and then create a solid out of it. I would like to know the procedure (the pipeline/workflow) on how to do this. Let me explain. I have an ...
0 votes
0 answers
24 views

Triangulated Edge Subdiv for Differential Growth in Geometry Nodes - Improvements?

I tried to create a Geometry Nodes Tool similar to this destructive Add-on https://github.com/inca/blender-differential-growth This is related to my question here: Capture Top and Side Boolean from ...
0 votes
0 answers
30 views

Mesh Self Collision in Geometry Nodes?

I was wondering if anyone has already succeeded in building a self collision for simulations (or Repeat Zones) in Geometry Nodes. I have seen several videos for particle collisions on Youtube but none ...
3 votes
3 answers
264 views

Creating / 3D Printing large O-rings using geometry nodes

Creating / 3D printing large O-rings using geometry nodes I'm trying to create and 3D print large connected O-rings given its length, width, and height (that won't fit on the print bed circularly) ...
0 votes
0 answers
30 views

Blend curves in Blender like Illustrator does, but with more steps inbetween

I found here this interesting solution. That's great node solution! However, I would like to ask you if it's possible to push that even further. What I mean is that here we have only 2 curve shapes ...
-1 votes
1 answer
95 views

All curves emerging from a single origin point following up on Plexus effect

I followed a couple of tutorials for creating a Plexus effect using Geo-nodes in Blender. But all my curves(connection) appear to come from a single point source and other dots do not connect at all. ...
3 votes
2 answers
234 views

Compute on all points in geometry nodes

I try (for a while now) to make a gravitation simulation with geometry nodes. The computation is not complex, and I get something that is almost OK. The problem is that it seems that it's not possible ...
-3 votes
0 answers
38 views

how to create a cement geometry between bricks [closed]

how to create a cement geometry between bricks
1 vote
1 answer
49 views

Accessing Geometry nodes Socket Names

I'm trying to make a modifier list and for the Geometry nodes modifier, I cannot find a way to access the Socket name I have in my group input node. I'm currently using this code. ...
-1 votes
1 answer
75 views

can someone explain me the node setup in red and why does the -0.5 value keeps the plane from moving up and down?

I am trying to understand why the value of -0.5 stops the plane from moving vertically and how do
2 votes
1 answer
910 views

Turning interactive geometry nodes into interactive web asset

I've been following some tutorials to make some cool stuff using Blender's geometry nodes. I really like this model that reacts to the proximity of an empty - here's the youtube tutorial for a visual ...
3 votes
2 answers
220 views

Blender Geometry Nodes: Rolling disc Simulation

I have a question about a different version of the GN setup topic as discussed in this thread I've been struggling to make a wheel version of this setup, unfortunately to no avail :( The ball tries to ...
1 vote
1 answer
60 views

Why can't I connect the duplicate index output into the curve circle radius input?

I am trying to make the radius be based on the index of the duplicate instances, but Blender is showing a red line. I am a beginner not sure what is going on.
2 votes
1 answer
1k views

Geometry Nodes: How to access data-block properties?

It's a long shot, but is there any way at all to directly access properties stored in vertices/control points data-blocks? There's stuff that doesn't show up in the spreadsheet that I'd love to be ...
3 votes
1 answer
65 views

Geometry Nodes - Controlling Direction of Displacement

I have a flat cube with some subdivisions that I ran a simple noise displacement node setup through. I'm not using a flat plane with no fill because I want to have the sides of the terrain "cube&...
3 votes
1 answer
169 views

A rolling ball with simulation nodes

Does anyone want to help me with some GeoNodes? I have a keyframed ball moving on a plane. I figure it should be possible to make the ball roll correctly using simulation nodes. In my mind, you ...
0 votes
1 answer
394 views

Retrieve rotation angle with Geometry Nodes

With Geometry Nodes I move the rotation angle Z of an object with a function. And I need to know if the angle of rotation Z is nearly to zero before applying the new value in the node 'Transform'. ...
1 vote
1 answer
38 views

Trying to simulate keyframing with geometry nodes to produce a repeating animation

I am working on a project to show a vein being compressed, pinching off blood flow, and then decompressing. I am using Ryo Mizuta's procedural blood vessel project (https://youtu.be/whh1QblAGEo?si=...
0 votes
1 answer
53 views

Use positions of geometry nodes instances in procedural shader

I have a geometry nodes sphere with several objects instanced on its surface in a spiral. I want to shade a circle on the surface of the sphere at the location of each instance. How can I get the ...
-1 votes
1 answer
32 views

How do I generate connected shapes into a given volume?

I'm an amateur 3d modeler / printer who's been using Blender "the hard way" for years and I'm just scratching the surface on geometry nodes and such. I'm trying to develop a model of a ...
4 votes
1 answer
109 views

How to select a boundary edge and generate an outline

I'm looking for two features in Geometry Node: Is there a way to select edges and convert them into a curve/solid outline Is there a way to specifically select edges that are on the border, as in ...
3 votes
1 answer
1k views

how could I get the neighbor faces of a face in GN?

For the face F, how could I get the ID/Index/any information of f1-f4 in GN? The Face Neighbours node only provides face/vertex count, just doesn't help.
3 votes
1 answer
77 views

Apply different materials to same geo node setup

Currently working on a small render, which has a very basic geo node setup to round fillets, so my knowledge is extremely limited on the geo node subject (to say the least). I was wondering, what's ...
3 votes
1 answer
355 views

Create different Fresnel lenses from different curves using geometry nodes

Create different Fresnel lenses from different curves using geometry nodes. I'm trying to create different types of Fresnel lenses from different shaped curves (to see what they look like when "...

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