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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Limit boundaries of instanced objects to the face they are instanced on Geonodes
I'm trying to stop my instanced objects from overreaching the face they are instanced on so the edges of the 'buildings' dont reach into open air. How could I achieve this?
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How to generate bodies with different widths but have the same distance between them? [duplicate]
I try to make a procedurally generated bookshelf, using geometry nodes and I made the books have different heights, lengths, and widths given by random nodes, but now I want to make those books have ...
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Geometry Nodes: How can a line be turned into dynamic steps?
While most stair/step setups in geometry nodes are parameter driven, I'm trying to create stairs that can be adjusted via one vertex of a two vertex mesh-edge/line that is hooked to an empty:
an ...
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Why does this Capture Attribute node transfers zeros to another geometry?
In related picture I want to sample positions of a cone's verticies and transfer them to cube's verticies' positions. Why are all transferred positions (0, 0, 0)?
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Connected Y-shaped intersection using geometry nodes
I would like to achieve the following intersection between 3 pipes:
The final goal is to then extrude the centre triangle face outwards, and apply a subdivision modifier to get a smooth spike shape:
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Geometry Node Attribute Unusable on Density (Shader Nodes)
I've found something weird. I have an Fac Attribute in my geometry nodes (it's a simple gradient). When I use it in Shader Nodes, it works, but not for the density value on volume absorbtion or volume ...
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How to model the Tengai Shinsei Susanoo in blender using cell shading / toon shader?
I want to create an animation where Madara Uchiha is sitting on a rock and the camera pans outwards to reveal the Susanoo, I have modeled Madara but cant get to model the Susanoo as it is too ...
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Can one emulate the shape of repulsive magnetic fields from two like charges in GN?
I would like to move around two points that are projecting lines. As they get closer to eachother the lines bend further and further from each other. I can't seem to find the math that makes this ...
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Move a robot with geometry nodes
I am creating a robot that moves with Geometry Nodes.
It can move the body, an arm and a hand independently.
The problem is when it moves the hand and the arm at the same time. The hand comes out of ...
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Can't select Vertex Group for Density field for Geometry node
I am following the Donut tutorial and I am up to the geometry node density selection and it doesn't give me the option of selecting the vertex group, when I click to type it comes up blank.
I can see ...
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Geometry nodes: is there a way to create a centerline of a closed curve/mesh?
See above image for a reference. For this kind of closed curve I would like to create a centerline.
I have previously worked with an extension in Inkscape which creates a centerline but it is cutting ...
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Geometry nodes: I have a curve with multiple intersections. Is there a way to split each 'arm' into a separate closed object?
I have multiple curves that look similar to this. With random T or + intersections. Is there a way to split each of them into a separate closed curve or mesh using geometry nodes? I basically want to ...
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Flip Faces by Instance in Geometry Nodes
I have a set of Instances, some of which I want to mirror randomly. This works fine, but when I mirror the instances, their normals also reverse.
This seems like an easy fix with the Flip Faces node ...
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Geometry Nodes with Child Objects
I have an object with a Geometry Node that I can use to create instances and change their position rotation... I have now added children to this object and would like them to react in the same way as ...
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How to match Z coordinate for vertices from two different objects that share same X and Y coordinates?
I wonder if anyone know a tip to match Z coordinate for vertices from two different objects that share same X and Y coordinates ?
I work with very complex objects (a landcape and a road) and i need ...
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How to make (a piano) sound when instance is a certain location?
Currently I am creating pendulum waves in geometry nodes in Blender 3.4. Everything regarding movement works perfectly but what I want to add is a sound when each pendulum hits the ground or wall. I ...
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Align Camera to and Instance in Geometry nodes
I would love some help on this! I have made a GN set up that creates a UVsphere(generated in GN) and the orginal geometry where the GN is the modifier a CUBE. Is a simple Instance on points to create ...
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How to remember screen position in Geometry Nodes Editor?
Every time I switch between different geometry nodes groups node editor loses my screen position. It's very annoying. I just want to save space location for each geonodes group.
Do you know how to ...
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Earth connection lines
I've been looking for the solution on the Internet and the only thing I found is this tutorial for Blender 2.79 with Animation Nodes: https://www.youtube.com/watch?v=jEYI4lnOprY&ab_channel=...
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Geometry nodes: How to reduce point density on straight sections of a curve?
I saw this example where the straight sections of a curve are represented by just 1 face, while curved sections have more subdivisions. How can I achieve this effect in Blender 3.4?
https://twitter....
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Merge point on edge with Geometry nodes
With geometry nodes I Subdivide the mesh, but only the bigger surfaces.
I do that by separating the bigger surfaces, subdivide, join geometry, merge by distance.
But there are no points on the edges, ...
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Geometry nodes face count per instances
I'm trying to make a geometry node setup that displays the face count of each object of a collection, but I can get it to retrieve the count for each individual objects (it only displays the total). ...
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Group input without previous modifiers
Is there a geometry node like 'Group input' that gives the original topology of the object without any previous modifiers?
It's for a voronoi pattern. For most shapes it is needed to first do a '...
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Procedural Book Shelf geometry nodes
I am trying to make a procedural bookshelf that can be modified by some parameters I input. I was able to create the book with these variable parameters and duplicate it like an array modifier, but I ...
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Geometry node which allow me to skip every odd frame in the object animation
Geometry node which allow me to skip every odd frame in the object animation
Hi I need help to build a node tree which allow me to skip every odd frame in the object animation. Basically, I need a ...
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How can I delete edges/edge loops that are on a mostly flat surface using geometry nodes?
Here is an example image. I want to have one big face here instead of the many edges - is there a way to delete them using geometry nodes?
In Edit Mode I would use Limited Dissolve for this, but with ...
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Geometry nodes - Disappearing points on deforming surface
I have appearing and disappearing distributed points when deforming an extruded curve in GN.
I want the amount of points to remain constant. (Extruded curve is animated with AnimAll) . I attach the ....
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How to use the geometry proximity node as snapping tool
I want to use geometry nodes as a snapping tool. Here is a simple example of the problem:
The geometry proximity node uses the shortest distance. How can I make it use the distance in the direction of ...
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How can I create an edge-split modifier within geometry nodes?
I want to be able to split edges by angle within geometry nodes.
I have already tried the Edge Angle node connected to a Compare (greater than) but I can't seem to get it to work. It somehow splits ...
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how to get the custom attribute of a bezier point set by GN
I have changed my curve in GN like this:
So i simply set a "spline fac" to the control point (via store named attribute)
Now i want to read these values via python.
I tried this:
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How do I distribute points on faces based on face angle?
I'm trying to distribute points on a terraced object but keeping them only on the "floor" faces and not on the "wall" faces. In this case I'm trying to make a teraced city with ...
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Distribute objects with different sizes on face without overlapping - Geometry Nodes
I want to distribute some objects on a face, I'm using the "Distribute Points on Faces" node with "Poisson Disk" which allows me to change the distance minimum to avoid overlapping....
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can't rotate an object in z axis using transform node in geometry. causing rotation at the edges of the plane [closed]
was trying to make a working clock in blender and can't rotate its hands in geometry transform node. causing to rotate edges of the plane instead of rotation the whole plane
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Geometry Nodes set subset scale and interpolate others
I'm new to blender and am wondering how I can have n cube geometry nodes in a line where a random subset of x of them are given ...
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Do NOT want to use geometry notes for material assignment
I do not want to use a node in geometry nodes (GN) to assign a material to the object.
But when using GN, the object shows no color. It has to be done with the node "Set Material".
Is there ...
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Geometry Nodes: Retrieve individual object from an instance of a collection
I'm sure this question must have been asked before, but I can't find the right search terms.
Using geometry nodes, I'm creating multiple instances of a collection. I'm not using 'pick instance', but ...
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How do you change the instance color to match the object's procedural color? Using geometry nodes
I'm looking for a similar effect found here:
GN: How to pass an instancer's localized texture color to its instances?
Instead of an image texture, I'd like to use a procedural texture that can be ...
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Intersection between rotated plane and volume sometimes fails
I want to use geometry nodes to cut out the part of a 2D plane that lies inside a cube.
As a minimal setup, I just added a plane to the exisiting default cube and scaled it up by 3:
When applying the ...
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"Splash" with Geometry-Nodes
I am trying to simulate the effect of a "Splash" on the water. For the moment I've managed to make all the drops go up and down again following the Z axis.
Now I want all the water drops to ...
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Add node groups with python where the user is located
I am making an add-on in which many node groups can be inserted using:
...
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Geo Nodes curve to mesh node input multiple profile curves and multiple axis curves
I have a sequence of nodes generating something similar to natural animal scaly skin like curves. I want these curves to serve as profile curves on a curve to mesh node or some other node that can ...
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How to boolean union closed 2D curves within same bezier object with geometry nodes?
I'm working with a number of closed 2D curves within the same Bezier object and I've created a simple Geometry Nodes setup to preview them filled and extruded while keeping them editable at the same ...
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Connect multiple circles by chosen shared tangent lines in geometry nodes
Picture 1 shows an example of 3 circles combined through a convex hull node. All circles are connected by their shared tangent lines. Picture two shows what I'm trying to achieve, an additional circle ...
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Delete overlapping Instances
I managed to translate instances from the vertices of a sphere to the vertices of another object.
Unfortunately I have some overlapping instances that look ugly in the rendered animation.
Now, I didn'...
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Using Geometry Node output as a modifier in another object, is that possible?
I have created a spiral in Geometry Nodes and it is very simple, nodes included are Input, Spiral, Output, very simple and works as expected. I would like to add a Deform/Curve modifier to another ...
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Generating multiple curves with geometry nodes from the same object without joining them
I have a plane that I'm attempting to create a topology effect with. This plane has an array modifier stacked on top of a boolean modifier that intersects with a mountain/wave shape to create a "...
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How to create gradual face subdivide effect with geometry nodes? [closed]
Using 3.4.1 build, I want to create an effect that slowly adds geometry to the mesh, in the same way Subdivide node does to the whole mesh, but not in an integer way, but in float, so that in ...
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Geometry Nodes get rotation of Collection objects [duplicate]
I want to replace the objects in an collection with another object using Geometry Nodes.
I've used this to place trees on imported GIS data and it workd wonderful, I randomize scale and rotation and ...
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Growing scales in Blender
The screenshots below are of a tool in Houdini that simulates the growth of scales.
The scales start out as tiny round meshes.
A simulation makes the meshes expand until they collide with ...
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Applying geometry nodes doesn't work on a curve object
I made a geometry node where objects are placed on a curve at random distances.
I also used a realize instance at the end.
But the error "can't apply constructive modifiers on curve. Convert ...
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