# Questions tagged [geometry]

Questions pertaining to creating, generating or editing an objects geometry. Object geometry is defined by editing and creating the location and rotation of vertices, edges, and faces.

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### Randomise seed of distribute points in volume for instanced volumes

I'm trying to generate a piled stone wall that follows a curve with geometry nodes. Currently my approach is to generate points along a curve, then instance volumes along that curve. From there I use ...
• 23
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### Augmenting a mesh

I am quite new to Blender and I wonder if the following is possible: I leveraged Photogrammetry to create a 3d mesh with texture of my office plant: However, now I want to augment my plant to have ...
7 views

### Blend Mean Radius for Skin modifier

I'm working with the skin modifier. I have a line were the mean radius is 2 on one end and 0.3 on the other. Is there an easy way to make the points in between have a progression from one radius to ...
• 1,911
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### Shading lines/artifacts in the viewport/render mode

I don't know why, but some lines appear in the shading on the object representing a triangle. All points of this side lie on the same plane (in the same X location). Tried to add weighted normals but ...
19 views

### How to fill hole in mesh cleanly

i'm trying to model a crankset, I have left a ref picture but when I want to connect 4 extruded groups of faces I can't seem to get a clean mesh to fill the hole. I'm quite new to modelling so any ...
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### Node setup geo/material for randomizing visibility in a grid

Does anyone know a way to use i.e the Musgrave texture to randomize visibility of an item arrayed into a grid? I've tried applying the array, and then separating by loose parts and adding the Object ...
14 views

### How to get one face of 3D shape to match the surface of another

I have an STL file of a complex geometry (shoe-like object) and I am trying to create a separate object to fill the inside of that geometry (simulated leg). I have tried to use the shrinkwrap modifier ...
23 views

### Geometry Nodes Merge Proximity

I'm trying to create two 3D objects like this: but with their edges merged like this: using geometry nodes. Can someone point me to some resources that will let me do this? I tried convex hull, it ...
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1 vote
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### Geometry Nodes: How Can I make an Organic Vein system?

I want to make a geometry system that takes the volume of a mesh and first makes a bunch of sphere instances in the volume (these are stars) then the system makes pathways and organic vein-like ...
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### Is there an easy way to merge all faces and vertices together, since I may have went about building this terribly

I built this planter pot starting with a cylinder, then built off that in various ways, mostly extruding vertices, making sure to have at least 2 vertices snapped to the main object, and then created ...
261 views

### Extrude mesh based on proximity to faces

I am learning Geo Nodes and trying to understand this: Why is the extrusion uniform and not based on the empty controller's position and different faces? I expected to see that the greater the ...
• 485
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### How to select non-manifold edges in geometry nodes?

I have a piece of clothing geometry that has arm and leg holes, I would like to create a selection of these parts programmatically in geometry nodes, is their an elegant way to accomplish this or am I ...
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### Set Position by using mesh islands in GeoNodes

I've divided my geometry into multiple mesh islands and stored a named integer attribute to identify which vertices belong to the same group. Then, I split edges to make some offset adjustments, and ...
23 views

### Correct use of Merge by Distance in Geometry Nodes, with smooth joining sites

I´d like to effectively merge two curves at their ends in Blender's Geometry Nodes without creating angles at the joining sites, while maintaining the smoothness of both curves. I wonder what is the ...
1 vote
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### Geometry Node: how to offset vertex position in world space [duplicate]

I want to offset vertex position of multiple objects in one direction only, regardless of their own rotations. This is very simple in Unity or Unreal Engine (for example: using a noise texture to ...
148 views

### Object Library for basic geometry

For example in Houdini : Where can I find this Library for basic geometry (box, sphere, plane, torus etc) ? So I can just simply click them rather than using keyboard SHIFT-A -> /mesh/cube
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### Deforming instances along a curve geometry nodes

I'm hoping someone can help as I can't work it out and can't find the answer anywhere. What I have is an object instanced along a spline, and I want to deform these instances based on a curve, which ...
• 1
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### Snap individual elements to - snap verts to *Edges* on other mesh?

Is there such a thing as 'Snap individual elements to edge'? I know about Snap individual elements to nearest faces. This is helpful in some scenarios e.g. where you have a group of verts and you're ...
206 views

### Bic Lighter - Solving subdivision warping issues while cutting holes

I have been a little stuck with this model and I can't seem to figure out how to ground these cuts in the proper way so that my mesh does not warp. In my mind the way it is modelled now should be very ...
• 551
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### Rope modelling with screw modifier

I'm modelling a rope using screw modifier (applied) on a circle (and unapplied curve modifier), so I've made a knot and tied it around a pole-like shape. The issue is I have no idea how I could edit ...
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### Vertex Weight Proximity - Weight gradient shape difference

Hello Blender experts, I am following a YouTube tutorial from a creator: Dobpen Here I am lost about managing the weight gradient shape while the target object passes through the main obejct like ...
1 vote
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### How can I solidify this awkward geometry?

I have a realistic head scan that I want to turn into a doll head to 3D print, by giving it thickness with the solidify modifier. However, because of awkward geometry around the eyes, mouth and ears, ...
1 vote
36 views

### Geometry Nodes: Is it impossible to make precise dimensions in this steel frame prototype method?

The goal with this node setup is to add geometry to edges and make them look like steel frames. The method bellow works well, but there's a problem, it's only precise for cubes. Anything different ...
43 views

### How to clean triangulated model?

I don't know how to clean this triangulated model if anyone know please tell me.
68 views

### Converting a 3d model into a square-dominant mesh with same sized faces

I need to create a quad-dominant mesh for a 3d model such that all quads are approximately squares and all non-quads are triangles. An additional requirement is that all square faces have to be close ...
218 views

### Merge Curves via Geometry Nodes

I'm trying to create speech bubbles using Geometry Nodes, allowing for different shaped tails and positions of the tail. I can't figure out a method to join the curves in a smooth way such that the ...
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### How can I fill this without filling the holes?

I'm trying to convert an image to a 3D object, I wanted to make it solid but I can't figure out how to fill it without filling the holes with it. Any help is appreciated. This is the geometry I want ...
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### Blender 4.1 Geometry Proximity Part of the Target Mesh Coming close to Effector Mesh

Why did some parts of the target mesh coming up to the effector mesh when they get closer to each other like this? Geometry Nodes setup: I want it to be fully down like a bowl or satellite dish. How ...
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### Calc factor for multiple curves using Sample curve node

I'm working on a Geometry Nodes setup and need help calculating the Factor for the Sample Curve node. The goal is to distribute points along multiple curves such that the longest curve gets the ...
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### How can I remove overlapping points on a grid in geometry nodes?

I am trying to generate a heterostructures of a crystal using geometry nodes. As a starting point I have "core" crystal which consist of red (anions) and white (cations) atoms. Then I want ...
59 views

### How can I fix the number of repeating unit issue in geometry nodes?

I am trying to generate a crystal structure wich is basically a repetitipn of objects in a set manner. I am using the nodes as attached: As shown in the images below, in this setup what I am aiming ...
53 views

### Modify a segment of a spiral with geometry nodes

I need to deform o modify a segment of a spiral curve with geometry nodes: to turn the last loop into a closed circle. ¿Is it possible?
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### Bevel problems | Geometry nodes

I'm trying to make a procedural Lego brick generator and I have gotten it to work for the most part. The last step in the process is to apply a bevel modifier to the brick to round the edges, ...
18 views

### Allowance modifier or technique?

Is there a modifier or a technique to add customizable allowance to selected geometry? I can use the Shrink/Fatten modifier on selected faces, but this is a destructive operation. The possibility to ...
33 views

### How can I make a cutout on face of plane?

I accidentally deleted geometry on my plane that was forming edges for a cutout, shown in yellow in the screenshot. How can I redraw the yellow lines and make it a cutout through the plane?
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### How to reverse simulation in geometry nodes?

I wanna make this bottle start like small rocks floating from the ground and then come together to reveal the bottle so I used geometry nodes for that I followed a tutorial on YouTube but I couldn't ...
161 views

### How to animate/increase scale of instances on points one by one, using geo nodes?

I'm trying to create kind of a neural network representation and need to make appear each of the spheres (which are instanced on each of the mesh nodes) one by one, so at frame 0 non on the spheres ...
30 views

### Is there a way to take into account the scale(Random Value) when using Poisson Disk?

Is there a way to take into account the scale(Random Value) when using Poisson Disk? I would like more density but still have a randomized rotation and scale without overlapping. The file:
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### How to easily access geometry node attributes of parent object within children without using drivers

Hi fellow Blender artists! I am working on a procedural planet generator that I would like to sell as a commercial product. My focus is on usability and that is where I currently face a problem: I ...
59 views

### How do I detect and fix overlapping geometry in 3d text

I'm creating a text object for use in a boolean modifier but I'm having trouble because the letters are overlapping, causing the modifier to fail: Because the overlapping vertices are all exactly on ...
1 vote
57 views

### how to set normal curves (free control) and transfer for mesh

i would like to make a stadium but have some problem with setting normals here's what I got with geo node: And this is how I want to control the angle I would be very grateful if someone could tell ...
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1 vote
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### Can I select and bevel the top edge of the letters in this model?

I spent several hours retopologizing the letters for this model, and then doing a Boolean Difference extrusion onto a block. However now the top edge of the letters is creating a weird geometry and I ...
• 4,723
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### Hide instances that intersect with an object

Dear Blender community I am new to geometry nodes, and can't figure one thing on my own. I have those roof tiles as instances on points, nothing too fancy, but I want to hide some of the tiles in case ...
167 views

### How to select all the vertices on one side of an edge loop?

I would like to select all the vertices on the character's hand from this edge loop down. Are there any quick ways to do it?
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### Is there a (PDF) manual for geometry nodes?

I am looking for a manual of sorts. The Blender one only gives the name of the nodes, but not much info as to their functions or examples of their use. Tutorials are great, but very few explain the ...
46 views

### geometry nodes: translating curve object radius to cube position/translation

I am trying to detect the curvature radius of a closed bézier curve and translate those changes into moving a cube and its position. So, performing a mapping between the curve radius and the position/...
43 views

I was making a football stadium in blender, and I wanted to make the roof of it something like you can see in the reference, I thought if I pull edit the vertices a bit upwards and sculpt it smooth to ...
50 views

### Create concentric scaled rings with individual noise translation to each instance

I am attempting to create the following outcome using a generated Curve Circle in geo nodes. What I want to do: Duplicate the Curve Circle a few times. Then scale them down concentrically Be able to ...