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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How do you offset instances using geometry nodes
I'm trying to make cartoon style hair with geometry nodes, to be more specific, a pony tail, by instancing a bezier curve. The issue is the stands pass through each other at the top. How can I Vector ...
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Geometry nodes: How to align all object faces to camera position?
Hi Geometry nodes friends.
I would like to seperate all faces of an existing object and then align them individually to the camera pos. Like the billboard technique you may know from game engines.
It'...
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Is there a way to have an adaptive uv on a curve?
I am working on a rope sculpture where I will hand draw several curves. I have found an answer (Texture coordinate on geometry nodes rope from Default Cube's tutorial (texture coordinates over ...
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Scale instance on points?
I have geo node with curve to points and then instance on points. I have managed to get my objects rotated along the curve. I would like to scale the instances to have them smaller at the ends of the ...
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Random colors to geometry node
I started by creating a simple Rubik's Cube and randomizing the colors for each face of the cube by using a geometry node for the single cube. I then added a second object, a plane mesh and made a ...
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Transform deforms a simple cylinder
The cylinder is deformed when I try the transform node in Geometry Nodes as the attached picture (the current selected object).. It rotates correctly (from vertical to horizontal, 90 degrees), but the ...
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How to select Linked mesh using geometry nodes
I want to select linked mesh in an object using an empty in geometry nodes.
As soon as the empty sphere touches a face it becomes black, after that want to check if the current mesh has any black ...
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Geo-Nodes Extrude Mesh different amount
I am trying to control the amount of extrusion from the extrude mesh node. I am extruding the edges. I tried this setup to to have some thinner and some thiccer parts, but it does not work.
This is ...
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Access instances attributes from collection info node
I was trying to access attributes from objects outside of the node graph but I'm having some problems and I don't know if it's meant to work like that or not.
I have two different node systems. The ...
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Is there a way to use distribute points on faces/volume on animated geometry?
I like to animate geometry using noise texture/scenetime and then set position in the offset but when I do this the points will randomly change every frame unlike with mesh to points which works with ...
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How to find out if geonodes's viewer is active?
Using python i can access the node
bpy.data.node_groups["Geometry Nodes"].nodes["Viewer.001"]
But how can I find out if it is currently active ...
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Fill grid with instances for puzzles
Is there a way to fill grid with instances like on picture. Different colors are different plane instances.
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How to scatter objects only on the topmost faces of the topmost layer of voxels of a multi-layered voxel grid?
I created a geometry node setup that "voxelizes" objects using the 'mesh to volume' and 'distribute points in volume' nodes, the voxels are instances of a '1m x 1m x 1m' cube which are ...
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How can I generate occlusion effects in meshes
I have meshes representing complicated fields of views of observers (positioned at local origin of the mesh). I would like to calculate new meshes that take into account occlusions inside the fields ...
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Recreating Surface from Curve Network in Geometry Nodes
Many CAD programs (for example: Rhino, Moi, FreeCad) have command Surface from Curve Network, which create mesh from separate curves, like in bellow images:
This command work for many shapes, from ...
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Geometry Nodes: Objects with different dimensions follow curve and snap next to each other
What I am looking for is a way to snap multiple objects from a collection next to each other while they follow a curve.
I found this great example from Frank Firsching. However, I can't seem to get ...
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creating a cube mosaic
I started by creating a simple Rubik's Cube and duplicating it several times into a collection and randomizing the colors for each face of the cube. I then added a plane and made a geometry to ...
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Array deformed along multiple disconnected splines
Hello :) I found this great answer by @Kuboå regarding deforming along multiple curves at the same time. [https://blender.stackexchange.com/a/282932/146028][1]
And I was wondering if there was a way ...
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Fibonacci Spiral curve with Geometry Nodes?
I've seen a few posts about creating a "golden spiral" with python but have so far failed at being able to convert the math and code in those posts into a geometry node tree that works.
I'd ...
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Maelstrom Profile
A node-noob calling all node-geniuses!
This is what I'm after:
However, at present, points are only being generated on the curve profile of the object specified below. These points are then being ...
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Audio Peak Meter
I’m trying to make an accurate audio peak meter in blender and can’t seem to get it right. So here’s what I want to do… The Z scale of object B is being animated by an audio file which I imported in ...
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How to properly set a UV map on generated faces in Geometry Nodes?
I have a group of faces generated in Geometry Nodes. They will be procedurally arranged in different shapes and the grid size will vary, depending on the image I use and the number of faces I need (it'...
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Particle trail path in geometry nodes
I'd like to create a particle trail path that follows a certain object in geometry nodes. Let's say each trail path has 15 points. In code I know I'd store the position of each point for the next ...
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How to apply image to geo nodes instances?
as you can see in the image below, I'm instancing a number of rectangles on a plane:
What I'd like to do is add an image to the top of the blocks, so that when seen from above it shows the world (...
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Geometry Nodes: extrapolate faces, but beginning at a random initial offset distance
I'm generating a load of noisey lines from a subdivided icosphere that extend to a certain length. However, I want them to begin extruding above the surface of that icosphere, aka I would like there ...
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Vertex Group in Geometry nodes set to another object
I am trying to use Geometry nodes to control the position of a vertex group I have. I am able to recall the group and I am able to move it but I want the vertex group to be assigned to either a point ...
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Create a sphere mesh, subtracted of a load of points using Geometry Nodes
Calling all nodes geniuses.
I'm trying to subtract a load of points from a UV sphere of radius $R$. I'm seeking the end effect of something that looks like a planet cracked in two.
Please note I'm ...
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Problem with instances on curve
I have 4 objects (each as a linked .blend file) that I have running along a path in the sequence of blue, green, orange, red. As you can see, some of the objects are overlapping. How can I get them to ...
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Texture coordinates on 3 profile curves within 1 geometry nodes setup (Default cube rope tutorial) [duplicate]
I must preface this by saying that I have a very limited knowledge of Geo nodes, so this may come off as quite stupid.
I followed Default cubes GN rope tutorial( https://www.youtube.com/watch?v=...
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Pinning cloth physics to multiple objects in Geometry Nodes
thanks to the help of some good people from this group, I was able to create procedural window blinds with moving slats.
Now I want to add some ropes that are connected to each slat and apply Cloth ...
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Shaded view shows extra surface?
I'm new to Blender and Geometry Nodes. In the images below, the wireframe one looks correct, but the shaded one does not: it has a "surface" inside the crater that isn't expected.
Any ideas ...
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In Blender 3.5, how to make a braid?
It is hard to precisely control the location of the virtual Hair Tie by changing the values on the Braid Hair Curves. The official Blender online document lacks of the detail about this issue:
One ...
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remove animation data from geometry nodes tree
I've unfortunately keyframed some values in a geometry node tree to show some of its capabilities, but now I don't know how to delete them. I've tried in the NLA and the Dope Sheet Action Editor, but ...
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Randomizing position of duplicated (non-instance) elements with Geometry Nodes
I have some edges, I want to have a number of duplicates of these edges so that they are offset in space but keep their direction. Should be simple? But I'm scratching my head over it for too long now....
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New grooming system load problem
When I load a test project from blender website for 3.5 version, presenting a few heads' hair styles created, I don't see any hair. I'm using 3.5 blender. What could be the reason? It just doesn't ...
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Blender Geometry Nodes to make a crater
I'm learning Geometry Nodes and I'm trying to make a procedural crater or concentric ripple mesh (like a rock being dropped in the water makes). I can use the Cone node with 0 depth along with a ...
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Changing material with Geometry Nodes
I've created a ring that changes the material of a pill based on its position.
What I don't understand is why I have to raise the ring so much to change the material of the entire pill.
I expected ...
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How to modify the radius of the curve based on the proximity with several instanced points along its path ? (geometry nodes)
Okay so; I'm pretty sure this question hasn't been answered here, but I might be wrong and just not know how to formulate my problem. If it is the case, I am extremely sorry.
I am rather new to ...
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Geometry Nodes - Rotate legos based on Normal Faces
I make a Lego model using Geometry Nodes from this tutorial: https://www.youtube.com/watch?v=LrEHoaq6QFE.
But now all the legos have the same rotation and face in 1 direction. If I want the Lego ...
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Convert UVmap attribute to UVmaps using geometry nodes
What I want is to make a mesh ready to be exported with its UVs after applying the geometry nodes modifier, it can be done manually (converting UVmap attribute to UVmaps), but is there any way to do ...
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How to run a python script when geometry nodes group input changed
Is there any way to run a python script the moment that the user changes a value of a specific input in geometry nodes group? for example a Boolean input.
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How to use script to connect Random Value node to Extrude Mesh node in geometry node tree?
The following code create a geometry node tree correctly, but can't create the link between Value and Selection. The the two lines between ######## should have the same effect; either line should ...
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Curve animation with Geometry Node
I made a mobile hand tied to the body by a chain.
When you move your hand, this chain can be made longer or shorter.
Moving the hand...
The GN I use.
Now I need to make it look like the hand chain ...
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"Instance Point on Faces" is not carrying over the proper textures in blender geo-nodes
I'm using geometry nodes in blender 3.41 and instancing a bunch of object on a plane to create a really complex scene. This is a technique learned from Max Hay on YouTube.
https://www.youtube.com/...
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Cannot read value from named attribute geometry node
I've been working a product configurator based on a CSV file that assembles something like a rack-system with different sized compartments per rack.
Somehow I figured out the complicated part for the ...
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Geometry Nodes: aligning one vector to another
I have a vector A that continuously varies direction using simulation nodes. I try for vector B to always point antiparallel to A. My idea was to calculate the angle between vector A and B using the ...
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Geometry Nodes: rotate each instance individually after resampling curve
First off, I am new to geometry nodes and am trying to understand what is going on.
I think my setup and question is pretty basic but I can't seem to get it to do what I want.
So I want every log to ...
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Morph between two objects along the curve (geometry nodes)
I have two objects with the same number of vertices. I need to array them along the curve but the first object has to morph into the second one evenly during the array. So each next copy will be ...
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Blender 3.5 hair system UV map
I am trying to create carpets for my asset browser with the new blender 3.5 hair system.
When trying to shade the hair, the UV map doesn't match the surface - eventhough it should have the uv input of ...
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Calculate the angle between two edges using geometry nodes
Calculate the angle between two edges using geometry nodes.
How can I calculate the angle between two edges using geometry nodes.
When I try and calculate it, it says 90 degrees (...
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