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.

Filter by
Sorted by
Tagged with
1 vote
0 answers
8 views

Geometry Nodes - Array of objects with caps

I'm attempting to create a lightweight skyscraper generator to use for a scene. Which I intend to use different collections of various meshes to make up the bottom, middle, and top sections to make ...
AxiDes's user avatar
  • 244
1 vote
1 answer
14 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 ...
ben's user avatar
  • 11
0 votes
1 answer
25 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 ...
vector man's user avatar
2 votes
1 answer
21 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 ...
frankytenmen's user avatar
3 votes
2 answers
115 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 ...
Alex's user avatar
  • 1,813
0 votes
1 answer
40 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 ...
Nuri's user avatar
  • 3
0 votes
0 answers
44 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 ...
Jess's user avatar
  • 1
3 votes
1 answer
44 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 ...
sinwar's user avatar
  • 203
1 vote
1 answer
27 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 ...
Stengy02's user avatar
2 votes
2 answers
142 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 ...
Homelander's user avatar
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 ...
Lutzi's user avatar
  • 317
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 ...
Todes Digga's user avatar
0 votes
0 answers
29 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 ...
Todes Digga's user avatar
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 ...
Roman Tanasienko's user avatar
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 ...
M.N.Raia's user avatar
  • 111
0 votes
2 answers
53 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 ...
Alio's user avatar
  • 15
-3 votes
0 answers
38 views

how to create a cement geometry between bricks [closed]

how to create a cement geometry between bricks
Andrey Re's user avatar
  • 147
0 votes
1 answer
46 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 ...
Andrey Re's user avatar
  • 147
3 votes
2 answers
230 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 ...
Metal3d's user avatar
  • 133
-1 votes
1 answer
72 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
Nishchay Gawai's user avatar
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.
Homelander's user avatar
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&...
Robin Sebbag's user avatar
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 ...
jacobo's user avatar
  • 165
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. ...
Pitiwazou's user avatar
  • 101
0 votes
1 answer
52 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 ...
stonks3141's user avatar
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=...
Stengy02's user avatar
0 votes
1 answer
53 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 ...
Adiora's user avatar
  • 1
-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. ...
SSR's user avatar
  • 13
4 votes
1 answer
108 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 ...
madscribbles's user avatar
3 votes
1 answer
76 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 ...
Abraham S.'s user avatar
-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 ...
cschryer's user avatar
0 votes
0 answers
35 views

I would like to save my amount of instances generated to an ID, so that I can use it later for training purposes

I am trying to make a random amount of instances appear. I would like to count these and connect it to a seed, such that I have a number for each ID. I have tried all I know, but can´t get it to work! ...
Martin Engberg's user avatar
0 votes
1 answer
29 views

Objects 3D face corner positions to UVs

Is it possible to convert a 3D objects face corner positions to UVs? I want to deform an objects mesh, save it as UV and then reapply those as UVs. I want to create a UV map in geometry nodes without ...
rbx 775's user avatar
  • 45
1 vote
0 answers
36 views

Variable extrusion strength based on "depthmap" image

I'm a Blender beginner and already made some progress with the help of this forum. I'm designing vector graphics in Illustrator and export them (DXF) to Blender. I learned how to use Geometry Nodes to ...
superno's user avatar
  • 43
1 vote
0 answers
29 views

How to create a vertex group with the intersecting edges of mesh node boolean?

The store named attribute that I put after my mesh boolean doesn’t find the vertex group that exists on the object. No matter how hard I look, I can’t find why it doesn’t work. The goal would be to ...
MoustikBleue's user avatar
2 votes
1 answer
55 views

Randomise the endpoints of parallel curve lines (Geometry Nodes)

I'm looking for a solution how I can switch start and endpoints of parallel curve lines randomly with Geometry Nodes. What I have so far is this: 10 parallel curve lines, divided into 10 segments by ...
emeff's user avatar
  • 23
0 votes
1 answer
38 views

Carve geometry according to alpha

The thing I want is to carve out pieces of a mesh based on an alpha texture. It's not a noise texture, it's a specific alpha texture I have that is UV mapped, and I want to delete the parts of the ...
Red's user avatar
  • 103
1 vote
0 answers
19 views

Randomising input of geometry node, instantiated via "Instance on points" [duplicate]

I have a geometry nodes setup to procedurally generate a tree. The nodes take a series of values for group input to modify how the tree is rendered; some of these are fields, some are simple values. ...
Matt Fletcher's user avatar
0 votes
0 answers
24 views

Add Mesh issue after creating a Geometry node to scatter

I decided to have a go with Geometry nodes (Distribute points on faces) to scatter 500 water droplets randomly across a flat plane. All went well, or at least I think so. Unfortunately now when I try ...
chris freeman's user avatar
1 vote
1 answer
83 views

how can I connect the points of the lines in order?

how can I connect the dots with a line in order? in geometric nodes
Andrey Re's user avatar
  • 147
0 votes
1 answer
28 views

About the "Selection" of the Distribute Points on Faces node

I wrote these nodes to test the functionality of Selection. My grid has four faces. I used a mathematical operation node and wanted to control the threshold to distribute points on the specified ...
Leoheart's user avatar
2 votes
1 answer
52 views

Circle equation using sin and cos

I'm learning how to create plots with geometry nodes and math nodes but I'm confused why this isn't a circle that is created with 0,0 as the center axis.
Still's user avatar
  • 159
2 votes
2 answers
206 views

Extrude curve with height proportional to position on path

I use this geonode setup to thicken and extrude a Curve/curves. Now I'm exploring if it's possible to alter the height of extrusion along the curve. (e.g. the position on the curve should alter the ...
superno's user avatar
  • 43
0 votes
0 answers
29 views

Unwanted extrusions Inside geo node structure

I'm fairly new to all of this and have had most of my fun in geometry nodes. I would like to know what I can do to get rid of all this internal mesh-stuff happening inside the object as well as the ...
Bea Bara's user avatar
0 votes
0 answers
26 views

Repeat Zone is not adding values as expected

I want to plot a freefall function with drag. Because I have two variables that rely on each other I need to solve it numerically. For some reason the passed velocity in the repeat zone is not being ...
TheJeran's user avatar
  • 2,581
1 vote
0 answers
71 views

How to manage duplicate geometry in Repeat Zones?

I am trying to achieve the building in, and animating of elements of a pressure gauge. In particular, I am trying to use a repeat zone in geometry nodes so that I can animate in the tick marks and ...
MrOfnoctonod's user avatar
5 votes
1 answer
83 views

Geometry Nodes: How to find the 2 vertices that are furthest apart?

For example on an object like a banana, a snake or a C shaped object. Is there a way to find the 2 "endpoints" or the 2 vertices that are furthest apart using geometry nodes?
muckyu's user avatar
  • 179
0 votes
0 answers
24 views

Donut Tutorial: My long sprinkles are looking thin and weird. How do I fix this issue?

I've been stuck on this issue for a long time and I've redone the tutorial twice and still get the same results. The long sprinkles are weirdly shaped and aren't sticking properly to the icing layer ...
MELT UP's user avatar
  • 55
0 votes
1 answer
40 views

Control of instance parameters through sockets (geometry nodes)

I created a primitive torus using geometry nodes. Then i created an array of such rings using a line (Instances On Points). I need the diameter (socket "Main Diameter") of these rings to ...
arachnoden's user avatar
  • 1,179
1 vote
0 answers
47 views

How I can tell if an input of kind object or material is empty?

I want to be able to tell if an input for a geometry node is empty or not. So far I found I can check if an object that is set from an input is empty or not like this. This feels like a hack and I ...
ellipticaldoor's user avatar

1
2 3 4 5
80