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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Can't find the node! Which node is available in which Blender version?
It's not hard to lose track of all the Geometry Nodes in Blender, especially since names and function have changed over time.
...But honestly, it's getting pretty tedious.
Many tutorials talk about ...
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How can I instantiate a procedural node group with different parameters?
Suppose I have a beautiful node group that procedurally generates a plant (or building or whatever) for me:
PS: This plant is available here: Staggered palm frond leaves with Geometry Nodes?
Now I ...
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how to bend geometry with geometry nodes
I want to create array on curve with geometry nodes, but I am unable to merge the instances so I get a continuous mesh, like a rail.
I tried to use the weld modifier but it does not work with geometry ...
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Why is there a red line when I try to connect one node to another?
I'm trying to connect one node to another here, and I get a red line:
I just can't figure out why and what this is.
What I have tried so far to solve the problem:
I made myself a cup of coffee
I ...
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2
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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 ...
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5
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How can I re-sort the points/indexes of an object in geometry nodes?
I wonder if there is a possibility to re-sort the indexes of a mesh according to a certain criterion?
Again and again in Geometry Nodes unfavorable situations arise where the point distribution or ...
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Where is Transfer attribute in 3.4?
Where is Transfer attribute node in 3.4? I don't find it in the list of nodes:
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Geometry Nodes instantiate mesh primitives at points
I'm trying to instantiate line meshes with a random number of segments at the vertices of a mesh.
Blender 2.93 has shiny new mesh primitive nodes to instantiate meshes in your geometry nodes network. ...
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Uneven Profile Curve Thickness with Geometry Nodes Curve to Mesh?
I've been trying to build a Geometry Node group that in part is able to create a mesh of even thickness around a three-dimensional curve that features sharp corners.
After much research I'm aware that ...
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Modify instance geometry based on the location of the instance
I'm trying to use an attribute generated from an instance position to affect the geometry of the instances. For example with the below setup, let's say I want to shift just the 4 top vertices of each ...
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How to apply Geometry Nodes with UV maps?
I am trying to scatter a textured object with Geometry Nodes. After applying Geometry Nodes, my objects lose the texture coordinates.
Is there any way to get UV maps on these scattered objects?
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Geometry Nodes: How to use the Random Value node? (Output is red) [duplicate]
I've created a Group node that acts as a geometry switch. Plug in a few different geometries, and the integer you give it determines which geometry actually comes out. It works fine with a Value input,...
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Assign vertex group in Geometry Nodes (v3.3)
This is my Geometry Node Setup. (EDIT: Here's a .blend file showing my nodes, modifier, vertex group, etc.) I create a grid, rotate it vertically, and then select out the topmost vertexes to assign to ...
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How can I rotate these instances along a curve in geometry nodes
I am trying to make a procedural bridge, is their a way that I can rotate these planks along the curve.
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How to position random instances one after another with Instance on Points based on the dimensions of the previous Instance WITHOUT OVERLAP? (Fence)
Objective
I want to create a procedural fence with Geometry Nodes, where the fence may have random plank types.
The planks must be positioned one after another, without overlap, right after the ...
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How to create a simulation in Geometry Nodes pre 3.6?
UPDATE: Simulation nodes are now available in B3.6β!
In the recent week the Blender community became crazy on the particular geonodes hack, that allows you to create a simulation in Geometry Nodes ...
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How to assign a different material color to each geometry nodes instance
I need to be able to some how color each instance in a geometry nodes tree a different color.
Each instance in the geometry nodes network is loose geometry. If I apply the geometry nodes modifier and ...
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2
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Control Instance Color with Geometry Nodes
I'm excitedly playing with the new Geometry Nodes system, but I've run into a limitation.
I would like to control the color of object instances created with the ...
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1
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Passing GeoNodes attribute to Shader frame offset
I am trying to pass a geometry nodes output attribute (an integer) to the shader editor to control the offset of an image sequence.
I have succesfully done this to pass the attribute and change , ie: ...
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duplicating buildings using geometry nodes [duplicate]
For the purpose of creating a city scape randomly, I have been trying to randomly scale procedural building instances on a grid using geo nodes.
The problem is that if you are instancing the same ...
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How can I get a new random seed for every object using the same geometry nodes?
I'm making a small medieval city using geometry nodes in Blender 2.93, where each building is a separated object, but they all share the same modifier list (and the same geometry nodes). I added some ...
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How do I create a 3D parametric surface using Geometry nodes?
This question asked how to plot the graph of 2D parametric equations using Geometry Nodes. But how about parametric surfaces generated by parametric equations of the form
$$ x = f(u, v)$$
$$ y = g(u, ...
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How to create Shape Keys in Geometry Nodes, including support for curve handles?
I am trying to replicate the functionality of Shape Keys but in Geometry Nodes. At the core of the setup I am using the technique quellenform introduced in this answer, but I am adding the ability to ...
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How to add a unit in the input field of a node group (also Geometry Nodes modifier)?
Some nodes like Vector Rotate or Mapping have scalar and vector fields with $°$ symbol or $m$ or yet another unit in them:
This also affects how the value is stored in memory – without the $°$ symbol ...
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Set group input to attribute in geometry nodes python without ops
I'm creating a script for data visualization and I want my data thats been loaded into an attribute to be selected for an input.
I like to write my blender code without using ops and context where ...
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335
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Set exponential spline resolution (or one based on float curve) in geometry nodes?
I’d like to set a curve's spline resolution nonlinearly, ideally with a Float Curve so I can have fine control over the delineations of this Curve to Mesh.
This is because I want the profile curves ...
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5
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2
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looking for a way to evenly space objects instances across mesh
I'm wondering what the best way is to evenly distribute objects onto another object. I have a circular object that I would like to evenly distribute these instances onto. I was thinking geometry nodes ...
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2
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Combine two position nodes from different mesh primitives inside a geometry node tree
I'm trying to understand how to use two positions nodes relative to two different meshes. In the following example, I thought that the grid would be translated relative to the coordinates of the one ...
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4
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Apply a copy of an object to each disconnected curve using the curve modifier
The curve modifier allows you to specify a curve object for a given mesh with the modifier applied. However, when the curve object itself has multiple disconnected curves, the modifier seems to pick ...
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Geometry objects disappear
In version 3.0 have Christmas lights connected to the leaves of my tree with geometry nodes. In the modifier it says "no group output attributes connected." When I apply the geometry node, ...
user134022
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2
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How can I bevel the edges of a cube with geometry nodes?
I would like to use Geometry Nodes to add beveled edges to a cube, exactly (!) like the modifier Bevel would do.
I am interested in reconstructing the effect as ...
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Where is a proper way to get back UV map after Realize Instances? [duplicate]
Where is a proper way to get back UV map after Realize Instances?
So let's say I have a distribution of the instances:
When I enable "Realize Instances" I completely lost my UV data, while ...
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11
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Is where a way to pass data to material without realizing instances?
So, I have set up like this (3.1):
I generate some color (random is just for example) and send it to output to use it in the material. But the only way to make this work is to use realize instances ...
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8
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1
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How to correct curve tilt, tangents and normals of a curve?
If you separate the faces of a mesh with Split Edges and convert them to curves with Mesh to Curve, these curves are twisted in ...
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Is it possible to calculate the distance between the vertices of two objects in Geometry Nodes?
If I have two cubes (with the same vertices and indices) and they are animated to move on their own paths, can I calculate the distance between v0 of one cube and v0 of the other cube to drive ...
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Texture map to a beveled curve or path
I've been trying to map a beveled curve properly.
It look stretched out of the box:
Converting to a mesh, marking the seams and unwrapping everything looks nasty.
The trick with the curve modifier on ...
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5
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3
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GN: How to pass an instancer's localized texture color to its instances?
How can Geometry Nodes be used to generate instances that inherit the texture color of their emitter/instancer?
Reference image of desired result:
(Above: screenshot by quellenform)
There is already ...
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5
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1
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Animate Instance Points on a curve in a Loop (geo-nodes)
Is there a way to animate instance points on a curve in a loop in geometry nodes? I have a curve object on which I want the instanced objects to slide along, without creating a gap after them. The ...
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Using Geometry Nodes to create and plot equations / functions
I know we can plot equations / functions with the Math Function - XYZ Math Surface Option in Blender and then use a ...
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How to pass individual values to each instance of the object generated with Geometry Nodes 3.0
Input object: Generated with GN.
Some value makes it higher.
Generated geometry of instanced Input objects:
Each of them should receive some value to create an individual shape.
For example, each ...
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2
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spiral slide with geo nodes
I'm trying to make a spiral slide with geometry nodes.
I've been able to do what I want with Instance on Points, but I cannot find a way to extrude from each instance or similar. I've used Align to ...
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Geometry Nodes - Incremental increases & controls
I found this youtube clip which shows exactly what I'm trying to do. At about the 10 second mark of the linked video, he shows controls working as integers. That in a nutshell is what I want to do.
I'...
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Sort points by distance from object (expanded: sort any field)
I have two sets of points and I need to connect them with curves using geometry nodes. The problem is the that curves need to connect two points based on their distance from two objects.
Example, a ...
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How to select the outer edges of a plane in Geometry Nodes?
I have made this shape in geometry nodes. How would I go about making a selection of just the outer edges excluding all the other edges within the shape?
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Staggered palm frond leaves with Geometry Nodes?
I'm trying to create a procedural palm frond style plant with geometry nodes that has instanced leaves staggered along a stem (curve object). And these staggered leaves are roughly 180 degrees ...
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2
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1
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How can I get the flowers to open while growing
I'm trying to create a setup where I can control the growth of multiple flowers by scaling and moving an empty. So far so good but I can't find a way to get the flowers to open while growing.
With ...
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2
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How to instantiate objects on individual/selected points in geometry nodes?
Let's say I have a simple Mesh Line and use the Instance on Points node to make an instance of a given object on every point of the line. How can I decide for each individual point if it should have ...
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Why are my donut sprinkles distorted?
I am following the Blender 3.0 Tutorial: Donut part 9/10.
I created a second mesh to practice on, but the sprinkles look kind of flattened. I don´t know why. I tweaked the Scale Settings in Instance ...
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1
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How to string objects of a collection along an axis depending on their size, applying random rotation and scaling without overlapping?
Sorry for the long title, but I had to elaborate somehow, because the question is now a bit broader.
Basically, it's about instantiating objects of a collection along a line.
This question has also ...
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2
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How to subdivide a selection of faces in geometry nodes
In Geometry nodes I am trying to make a selection of where I want the subdivision to be applied, the only way I have been able to do this so far has resulted in the subdivided section being ...
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