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 control the selection in "Clump Hair Curves" Node for the "Guide curves" and "Curves to be clumped"?
I've watched the video blender studios have made, but I'm still rather confused on the topic as they quickly go through clumping. How do I control which attributes are "Guide curves" and &...
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Share vertex information across the geometry node [closed]
I'm creating an application where we have a cube which position follows the vertex position of another element of the scene. I was thinking of doing this using geometry node but I don't know how to do ...
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Make profile curve resolution variable across the spline
With geometry nodes I would like to convert spline into mesh in a way, where result mesh (tube) profile resolution is based on the main spline factor. Like for example on start of the spline (factor 0)...
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Geometry Nodes - Get Index of corner conected by an edge
What I am trying to achieve with geometry nodes:
Generate curve for each corner of a mesh - Done.
Set start and end points of these curves by positions of Next and Previous edge of a coresponding ...
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Expanding particles by the normals of the sphere they are scattered on GeoNodes Simulation zones
I want to instance points on a sphere and use the normals of the sphere to make the particles expand from that point, if possible make them collide with objects around them using simulation node in ...
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Can I convert liquid foam or bubbles to point cloud and use it inside geometry nodes?
Can I convert liquid foam or bubbles to point cloud and use it inside geometry nodes ?
I'm trying to spread objects on liquid object , and I would like these scattered objects look like they are stick ...
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Morph between vertex color from instancer
I have some trouble to morph between two vertex color.
I made a morphing between two point cloud without problem, but when I try to morph vertex color, the first one is ok but second one stay black (...
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Geometry Nodes - Delete mesh line verts based on the offset
I'm learning geometry nodes by creating a node for chairs. I want to make a backrest with rungs and I want to delete the rung if it would get higher than the actual backrest.
So for now I created a ...
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How to correctly use the new Create Guide Index Map node in blender 3.5
I am trying to figure out how to use this node as shown in the example video. Ideally I want to be able to output values as shown, based on strand proximity to my guides.
My initial attempt was to ...
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How do I select curve endpoint of multiple segment of curve [closed]
I know how to select using endpoint selection of a start and end of a curve but cannot figure out if there's multiple segment in the curve....
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Delete curve points if they lie in a certain area
I have some number of curves.
I want the points starting from those in the 4th quadrant to be deleted (except for the points whose edge lies on the X axis). Like this:
I've tried this setup
and it ...
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Geometry Nodes - Sample unit scale
Pretty much as the title states, I would like to sample file unit scale inside geo nodes. This is to foolproof my node setup if shared with other users. Is there any way to do this?
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Viewing just the lighting effects without the object
Viewing just the lighting effects without the object.
Example:
I have a scene created with geometry nodes which an object (the sphere) creates an animated lighting effect (see below). How can I keep ...
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How to have the same material applied on multiple objects, but control the material parameters for each object individually?
I am making a modular road system where I want to apply an asphalt material with white road markings on many different roads (objects).
Now I want to be able to apply the same asphalt material to all ...
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Rotation value is different in Geometry nodes
I have a question about the instance in geometry nodes. I built a rig for a popping up book as I showed in the screengrab. I made the group input so I can choose the objects in the scene as my page. ...
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Export animated vertex color as .fbx
Is it possible to export animated vertex colours, here created with a geometry nodes graph?
The values animate from 1 to 0 and from 0 to 1, and the Color out is assigned to the colour attribute. The ...
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How do I animate the movement of my curve in geometry nodes to to match the movement of my instances?
I'm currently working on a loop animation where balls move up and down connected to lines. I have built everything in geometry nodes but cant figure out how to make the meshed lines move to copy the ...
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GN object distribution and rotation; tree creation
I have a tree (mesh) created from the "Sapling Tree Gen". I am trying to populate hand crafted branches. I've tried Geometry Nodes and a Particle system with different problems. Both ...
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How to put white road markings on the asphalt of a highway in Geometry Nodes
I ask this question in relation to my previous question on this topic: link here
This was resolved by Quellenform (many thanks!), but now I am encountering another problem:
When the road/curve is ...
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Float/Integer overload?
Attached is a Geometry nodes timer in days, hours, mins, seconds. The clock is... nothing special. It takes the days, hours, minutes seconds input, evaluates everything into seconds, adds the frame ...
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Use Geometry Nodes to reproject onto camera view
I want to use geometry nodes to reproject 3-dimensional objects as 2-dimensional shapes against a camera view. Wherever the camera goes or does, the 2-dimensional shapes will follow, change, and ...
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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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27
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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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22
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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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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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