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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Creating knurl on certain faces using geometry nodes
Creating knurl on certain faces using geometry nodes for 3D printing.
I know I can create a knurl in "normal" Blender.
Easy way to model spiral engraving (knurling) that is usually used on ...
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Using an edge for one axis and its neighboring faces' normals for the other two axis, how can instances be oriented on right-angled geometry?
On only one axis (the x axis in this example), I'd like to orient instances so that they are all rotated uniformly around right angles, like this:
I think this is theoretically possible if the axis ...
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Can't boolean with geometry node'd object?
It doesn't appear that you can do boolean operations with an object that has been generated from geometry nodes, and I'm trying to understand why - or am I doing something wrong?
As a simple example, ...
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Mesh To Volume - Applying Voronoi geonode to custom shape
I've been looking at several tutorials showing how a voronoi texture geonode can be applied to a Volume Cube to create something like this:
What I'm looking to do is to apply the same Voronoi texture ...
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Using VDM Brushes procedurally in Geometry Nodes?
I am fascinated by the new possibilities to use VDM Brushes in Blender. I used the VDM Baker Addon to generate a VDM Texture.
I thought it might be interesting to use these in Geometry Nodes, to ...
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How to visually number meshes with geometry nodes?
I have 26 meshes for each letter of alphabet.
I want to put a number directly under each one of them.
How can I do it with geometry nodes?
Thanks.
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Alignment of instances
I have created a test system in which I want to cut a grid into separate faces where perpendicular on each face, I create cylinder that needs to stay perpendicular when the individual faces are ...
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normal after using mesh to point [closed]
When I subdivide an object by using split edges and then put an object perpendicular onto the new faces (using the normal), this works well in combination with "Distribute Points on Faces", ...
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limit displace mesh to one uv face
I have a dem (baked texture)
which I'm using to displace a uv face (projected from view, bounds and aspect)
the issue being both the front face AND the back face are displaced, how do I only target ...
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Passing parameters from Geometry Nodes of different objects
I have a Geometry Node group named 'Main' where I defined a vector and connected it to the group output.
On another object I have a Geometry Node group named 'Sphere' where I want to position the ...
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Edit string input for geometry nodes?
How can I edit a string input in geometry nodes from the modifier properties? It seems to be the only type that cannot be edited (other than "Geometry" which just doesn't display at all).
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Duplicate hair curve Raidus control
What is connected to the Radius socket in this video?
https://video.blender.org/w/es5bkTNvRwrvUFdjuK1UvB?start=1s
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Are "sample curve" and "simulation zones" nodes incompatible?
I'm trying to sample a curve in the new simulation node, but without any result...
I attached 2 screenshots, one of a functioning node setup and one a that doesn't work. I would like the second setup ...
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Mirror multiple objects
I have 2 joined objects that I'm trying to mirror on the x axis. But the points of one object cling to the points of another object.
This question isn't about how to mirror the objects differently, ...
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How to export Geometry Nodes animation with UV map
I made an animation of a flower growing and blooming, that I want to export as an alembic file and render in 3D Studio Max.
The problem is that I can't seem to export the UV map with the animation.
...
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How to outset faces in geometry nodes
So essentially I need to scale edges so that the offset after transformation is constant distance away from original geometry (something like the opposite of inset). I need it to be procedural, so it ...
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Remove sections of a point cloud with Geometry Proximity or any other node setup
I am trying to create slits in this point cloud model (.ply filetype). The geometry I would like to use to delete the slits in the point cloud is a plane with an array modifier (to control the ...
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How to use 'Realise Instances' node without losing multiple colours on object [duplicate]
I have a donut here which I have made. The sprinkles are made using geometry nodes and have NOT been applied to the object yet:
I would like to apply the geometry nodes and convert the sprinkles into ...
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Selecting pair of edges in geometry nodes
Given a mesh geometry consisting of edges, I want to select the pairs of adjacent edges for each vertex.
For vertex a there is only 1 pair [1,2]:
For vertex b there are 4 pairs [1,2],[2,3],[3,4],[4,...
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fill gaps of a mesh only made of edges
I have a bunch of edges which are the result of spliting a curve into splines and getting those splines trimed and convert them to mesh. Now I need to create new edges in order to close those gaps, I'...
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GN: overlapping curve points with float attribute - select points with min / max values at the same coordinate
I have complex curve object (mesh converted to curve) with overlapping curve points (every former edge becomes curve line - mesh with quad polygons will have 4 points at each former vertex)
This curve ...
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How do the "Collection/Object Info" node options affect its output?
So a few simple questions around an area that keeps tripping me up in two areas that are related. I guess I need a good tutorial on these very specific areas...The bottom line is that if I can ...
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How to access scene camera rotation data in a context driver in geometry nodes?
This question refers to the feature introduced here: https://projects.blender.org/blender/blender/commit/c26566ad
The path listed in this link, camera.matrix_world[3][0], allows for accessing the ...
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Using multiple face islands with differing rot/pos as the "Target Geometry," how can the Raycast node's "Is Hit" boolean be used to separate geometry?
I'm attempting to remove the points which are in front of instanced planes of various sizes:
That way, the remaining points can be used for instances that won't overlap:
The task is almost solved ...
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Reverse time/direction geometry nodes
I have instances traveling along a curve based on the factor of 0 to 1 in a circle. I would like to click the switch and have the instance start traveling backwards from it's current position on the ...
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Geometry nodes: number of distributed points per face
I'm trying to get the number of distributed points per face. In the following node tree I get the number of points for face 0, but how to calculate this for each face (face_index in this example) of ...
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Geometry Nodes do not pop up
I'm a complete beginner in terms of Blender, never worked with it before, so I'm probably missing something.
Anyway, I'm trying to make some models for a future game, and so I followed a tutorial for ...
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25
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How can I scale instances to hair lengths?
(Using Blender 3.3)
Since particles seem to be deprecated, I am trying to use hair curves to allow me to precisely position instances on a model. (Consider feathers, as an example.) Specifically, ...
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How do I apply a pre-existing UvMap to a color attribute? [duplicate]
I'm working on a viva piñata styled fur in geometry nodes, but ran into an issue, I'm trying to make the fur use the same Uvs as the base mesh, but I don't know how to add the map to the color when it'...
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Achieve similar effect as curve modifier in Geometry Node
Here's the problem I have with geometry node:
And here's the effect I wanted to achieve in geometry node:
So basically is there a nodesetup that allows me to make the distributed instance/mesh ...
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How to make the rotation of instances in geo nodes follow their motion path?
I created a scene with instances randomly following a noise texture, and now I want their rotation to align along its motion paths. I am not succeeding though and would appreciate any help.
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Geometry Nodes, creating a ruffle effect - changing mesh along a curve profile?
I am trying to recreate this ruffle (see ref image), I have a bezier curve profile that is thicker on the outside and would like to add noise or waves for movement, however only on the thicker bit and ...
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How can I create an outline around an object?
I want to use a geometry node to place a fixed number of instances on the outline of an object based on the camera's viewpoint. How can I place a fixed number of points on the outline of an object ...
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Geo Nodes: Change the H/S/V of an Instances Material per Mesh Island (without realizing them)
I work on a Node Setup with which I can spawn Houses on Faces. Now I want to make the instanced House Fassades the same Color as the Face it´s been spawned on while only using one Mastermaterial for ...
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Geonode : Display instances scales as text
I need to display a bunch of fish instances with randomized scale.
They are generated with geonodes.
Under each fish, I need to display its ( randomly generated ) scale.
As you may know using a ...
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Object in Rendered Mode is different from Material Preview Mode [duplicate]
So I'm making a running train in Geometry Node but the object looks different when switching between Material Preview & Rendered View.
This is my node setup
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Turn 2D shape into a Point Cloud
A project I'm currently working on requires turning a 2D shape (simple but random 2D shape, typically a face extracted from another object, can be tilted) into a Point Cloud of some specific specs (...
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Adjust edge length with Geometry Nodes relative to center
I was following this tutorial and it was great!
But I would like to modify it little. When I find the corner vertex, is it possible add new vertices at a certain (constant) distance in the same ...
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1
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Calculate middle between two vectors with Geometry Nodes
I need to calculate the coordinates of the middle between two vectors and I'm sure it's very easy to do, but I don't see how.
I draw a line between two objects but I couldn't find the middle.
Any ...
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How to make skirting boards in Blender geometry nodes?
I want to add skirting boards to all my walls and I thought geometry nodes would be the fastest way to do it. A flow like:
Duplicate Elements the wall object, so ...
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Random Rotation in Opposite Direction
How do I set up random rotation in Geometry Nodes in a way that enables me to rotate the individual arrayed instance in opposite directions? Currently, the random value node only randomly rotates in ...
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Metallic Object Are Not Showing Up
I was trying to follow Ducky 3d tutorial, and I added a metallic surface but when I try to view it on render the metallic does not show up.
Its all black I messed up a bit with the lighting world but ...
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Need help with Geometry Nodes edge selection
I have a closed line of connected vertices without faces in GN. This is the outline of a road which I'm using to create a guard rail along the sides. I need to delete the end edges so the rail won't ...
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How to export Blender spreadsheet data into .csv file without applying GN?
I created this geometry in Blender GN, and I need to export the 3d coordinates of a list of points(These points are not on the input geometry), the data is already shown in the "Blender ...
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Is there a way to make object always face the active camera or just viewport with geometry nodes? [duplicate]
Is there a way to make an object always rotate towards 3D view or active camera using geometry nodes without manually choosing targets, so it would work with multiple cameras in you scene?
I saw the ...
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How to know what number should be input in From Min and From Max in Map Range Node?
This node Map Range takes a min and a max from incoming data, but as far as I know, GN has no nodes that can return the domain of the incoming data.
So how come one knows which number should be input ...
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Stretch and skew planes between posts or points on a bezier curve with geometry nodes
I am trying to stretch and skew a series of planes between cube posts on a bezier curve The bezier curve is set to vector to give only straight lines, but in all possible directions.
The plane will ...
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geometry nodes: how to assign an image texture to a geometry [closed]
if i create an image texture node, the output is a color. what do i do with that?
i cannot figure out where i should use this as an input.
online i have only found more complicated methods where an ...
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How to model machicolations using geometry nodes? [duplicate]
So years ago, early in my CG learning journey I had trouble trying to understand how to model machicolations. As in these things:
and eventually learned how to get really good at modeling in general. ...
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Wiggle Path Effect in Geometry Nodes
Hi would love some geometry nodes help. I'm trying to recreate this effect in geometry nodes. Wiggling noise along a path. This was done with the wiggle paths layer effect in After Effects. Any advice ...
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