Questions tagged [geometry-nodes-fields]

Fields are a feature of Geometry Nodes added in Blender 3.0, "a function: a set of instructions that can transform an arbitrary number of inputs into a single output". Fields make 3.0 Geometry nodes very different than 2.93's version. Use this tag for questions related to the use of fields in Geometry Nodes

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Geometry Nodes Flower Grow - How can I control the CURL of the flowers' petals individually

It is possible to realize instances and still control their rotation individually later on (or that's my impression, at least), like so (the individual petals are rotating, but not all at the same ...
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Geometry Nodes - instancing a node group, how to change input value based on instance position? [duplicate]

I am instancing a node group. How can I control an input of the node group based on instance position? In this example, I want the "age" parameter of the flower to become smaller the higher ...
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How Do I Add Objects To A Specific Part of a Geometry Node Object?

I followed a tutorial by GC Obaid where I created a chocolate bar utilizing geometry nodes. I'm new to geometry nodes and I'm not sure how to add, for example, fruits, nuts, etc to the back of the ...
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Geonode setup to create a multi-object radial array

I'm trying to build a Geonode setup that allows me to create and properly rotate a multi-object radial array in Blender 3.1.1 and I haven't found any tutorials on Youtube that can rotate the object ...
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Geometry Nodes Flower Grow - How can I bloom the flowers via animated vertex weights or vertex groups

I have this: But cranking a value opens or closes all the flowers at the same time. Connecting a vertex group into the value doesn't do anything. How should the nodes be arranged so that it works? ...
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How to get Hair Curves as Instances in Geometry Nodes

I would like to use the new hair curves (Blender 3.3) as an input for an already existing geometry node. This node expects a collection of curves (i.e. curve instances). I don't see how I can change ...
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Use a Geometry Nodes Instance Attribute in the shader?

Is it possible to get any of the Instance level Attributes into the Shader without Realizing Instances? If you use Instanced Objects, you can have different Object level attributes and access them ...
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Showing geometry node fields in a custom UI is grayed out for collection

I'm trying to create a custom UI that shows some geometry node modifier settings, So far it's working for the most part but Collection and Objects fields are grayed out : Is there a way to make them ...
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Radius-Variable Screwing, possibly involving nodes

a novice here looking to be ambitious (and presently failing). I'm trying to take a polygon plane (approximately circular and with radius = R) and screw modifier it with an R that reduces in size with ...
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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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geometry nodes data transfer

As seen on the images i have 2 planes one subdivided with geometry proximity set up and second plane with one face the question is how do i somehow transfer that data from the geometry nodes to show ...
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Cycling /looping through a set of index values using geometry nodes to create animation

Cycling / looping through a set of index values using geometry nodes to create animation. Since they are still working on adding loops in geometry nodes how would I cycle through a set of indexes to ...
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Animate / turn lights on and off in a specific order using geometry nodes

I'm trying to Animate / turn lights on and off in a specific order using geometry nodes. The numbers are the order I wish them to turn on/off. So when 1 is turned on all others are off, when 2 is ...
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How to create position-cells from scratch?

The geometry proximity-node position output is quite mysterious to me, it is able to dynamically split space into position cells, as shown in the gif below. I would like to have a better understanding ...
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GN; Capturing attributes of Bounding Boxes

When you take the Bounding Box of a collection of instances, each unrealized instance is bounded independently. For some reason, despite the boxes appearing to be instances themselves, and having no ...
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Geometry Nodes: How to slide mesh across other mesh? (Especially a donut-shape mesh)

I would like to make this happen with geometry nodes. The blue polygon should go all the way around the donut and loop.
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how to instantiate object on certain positions geometry nodes?

I have the following setup, the plane rectangular thins is road, the the scattered object is grass, the following is the node setup, if I don't want like the instances of grass to appear where there ...
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How can I use the same Noise Texture in Shader Editor to distribute points with Geometry Node?

I have been trying to distribute points on a plane and make the density correspond to the the Noise Texture I am using in the Shader Editor, using the "Generated" texture coordinate output. ...
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Shortest Edge Paths between two empties

so I'm trying to get the shortest path between two empties using the "Shortest edge paths" node, but I can't figure out how to get the vertex of the mesh where the object is located. I ...
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Geometry Nodes. How do I shift a plain's vertex position based on whether or not a selected object hits it/ lands on it?

I've made this simple plain, and used it's noise attribute to guide positions of instances, Wherever the ground is lower than a certain z, The grass is thicker There are pebbles Node Trees Below Is ...
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how to insert text with multiple lines in string node in GN?

I want to display text with several lines in GN. Especially my text is in the text editor, i copy paste it into the string node and i got...one line. Is there a trick to insert more lines? What am i ...
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Using geometry nodes to Snap / move two vertex points from different objects together

Using geometry nodes to snap / move two vertex points from different objects together. I can get the vector of the index of the two vertex points on the objects I want to move which is at index 224 ...
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How to place objects in a grid pattern with geometry nodes?

I'm trying to place objects in a grid pattern but I don't want a regular grid where I set column and row count. Instead of column and row I want to set the column and object count and if the count of ...
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Raycast on Geometry generated by Geo Nodes?

My problem arises when I attempt to use the raycast node on geometry created in the same node setup. I would expect the result to be effectively a hemisphere of instances on the top of the cube, ...
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Create 2D cutout of 3D object using geometry nodes

Create 2D cutout of 3D object using geometry nodes. I'm trying to create a 2D cutout from a geometry node generated 3D cone (and make it procedural) See red arrow pointing to 2D image that I'm trying ...
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Problem with rotation along curve Geometry Node

I want those cylinder segments to be perpendicular along the curve. This geometry node is making the segments a bit tilted towards joints.
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How does the new geometry node Deform Curve on Surface work?

Does anybody have information about the new Deform Curve on Surface node? How does it work?
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Geometry Nodes - Scattering inside a scattered object (using vertex groups)

First time asking a question here ! woo. I've tried to look for an answer.. I must be missing something very basic. I started using Geometry nodes a few days ago (finally) I'm trying to scatters stuff ...
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Egg using geo nodes not working

I am trying to make an egg using geo nodes not regular modelling. I did that because I just wanted to test out the attribute statistic node. Here is my work: the result is all the points in the ...
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GN: Each tri of instancer mesh is randomizing instance colors differently. How to make distribution uniform?

I tried to assign different random colors to instances based on this answer, but for some reason each triangle of my instancer mesh produces different color for the instances. Each face triangle of ...
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1 vote
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Calculating next point position per spline

I'm trying to do some fields calculation to avoid creating a "limited" sequential loop but I'm facing a little problem. Pretty sure this can be done but I've yet to find the solution. Here ...
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1 answer
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Is there a way to scatter objects with its animation with geometry nodes?

So, I'm making a crowd generator, and I've set up the scattering already, but I cannot get the base object's animation to get played on the scattered ones. So the base one's animation is playing, but ...
4 votes
2 answers
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Bevel the top half of an object or just the top half of a selection using geometry nodes

How can I Bevel the top half of an object or just the top half of a selection. I have a well plate object created in Geometry nodes. When I use the Bevel modifier it of course does the entire object. ...
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How to make instances, points appear only inside the empty cube volume?

I have this long plane full of points that I'll turn into cars on a road. But I want a cube/empty cube to act as a mask and the cars should appear in from an invisible boundary of that cube empty.
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Pulling faces out while remaining connected using geometry nodes

Pulling faces out while remaining connected using geometry nodes In "normal" modelling mode I can select specific faces and hit the G key then the X key to pull out the faces along the x-...
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Trying to duplicate instance effects of a distributed plane on an emitted plane

I've set up a little example blend with two planes, the middle green plane has points distributed on faces for the yellow cube on the left to be instanced on. The right violet plane has old particle ...
3 votes
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how to get the center point of a letter?

I am using this GN setup here: result: but unfortunately i cannot get the bounds of my different convex hulls... I tried attribute statistic -> no values and i tried bounding box -> no values (...
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GN: Is there a way to check if geometry intersects with its neighboring geometry?

When adding a new piece of geometry to a collection of other pieces, is there a way to check whether the new piece intersects with its neighboring pieces? As a simple example, the following could be a ...
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2 votes
1 answer
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Creating a displacement texture for 3D printing using geometry nodes

Creating a displacement texture for 3D printing using geometry nodes I'm trying to recreate a pattern within a shape and include a displacement in geometry nodes so I can 3D print it. The pattern / ...
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Geometry Nodes - Failed to Apply error "Transform curve to mesh in order to apply constructive modifiers"

I am working on printing a model that has the below chains generated with geometry nodes. However when I try to apply the geometry nodes to turn them to mesh I get a failed to apply geometry nodes ...
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why does this geometry node tree not work if i make a nodegroup out of it?

This is a follow-up question to the great answer of quellenform here: Texture map to a beveled curve or path I only wanted to make a nodegroup out of it, then i created a plane, added a geometry nodes ...
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How can I create a field of numbers that repeats the times of itself?

I got a geometry node (GN) related problem here. The project that I'm working on requires a field input of random numbers that have to repeat the same time of itself. They will be used as selection ...
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Blender Geometry Nodes Instances only partially

how can i make the instances with Geometry Nodes only partially in Rings like on the Plant in the Picture? Thank you very much!
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How to create a heatmap with geometry node?

I'd like to create a heatmap in geometry node from given points (vertex) At first glance it looks like the GeometryProximity node could be useful, unfortunately this node is giving us distance cells ...
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Using empty and raycast node in geometry nodes to shrinkwrap / debossed / control location of text on object

Using empty and raycast node in geometry nodes to shrinkwrap / debossed / control location of text on object. Example of debossed text. I know I can use mesh boolean and GN to create debossed text on ...
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Round / smooth the end points of curve in geometry nodes

I'm trying to recreate an image below in geometry nodes. I'm having trouble getting the ends of the spiral curve to be rounded any ideas? See nodes setup below.
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How to connect, by closest distance, vertices together in geometry node?

I have a bunch of points (vertices), they may, or may not be aligned to form a path they may, or may not be at regular interval distance from each other they have a completely random index value How ...
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Put scaled instance in the center of each edge in Geometry Nodes

I want to create sort of a engineering structure. I want to model an object "the traditional way" and then, in Gemoetry Nodes, put a joint in each vertex of the original model and then truss/...
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Billboard to scene camera?

Most of the various tips I've seen on constructing billboards (at least, without the use of the old legacy particle system) involves constraining them to the camera. This works fine for a scene with a ...
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Rotate edges in global space around their first vertex in Geometry Nodes

I have some mesh edges and would like to rotate them around a global Z, using their first vertex as the origin for that rotation. So far the setup has a couple successes: I can rotate around the ...
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