# 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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### How to bend/wrap geometry (fbx file) inside another object?

I've been working on a 3d modeling project for a feasibility study regarding O'Neill Cylinders. Part of my assignment requires me to wrap a model of manhattan inside part of the cylinder to represent ...
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217 views

### How can I create a sine wave on a bezier curve?

I've been playing with Geometry Nodes in an attempt to re-create a rippled wave effect which will follow a bezier curve. I want to be able to control the amplitude of the wave and the frequency. I've ...
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1 vote
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### Geometry Nodes: UV unwrap

Forgive me if this question is already asked. I'm trying to find a good way to UV unwrap procedural created meshes. Windows for instance, but I just can find the right way. Hopefully someone can help ...
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1 vote
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### Mask for procedural objects on plane

I have a plane with two objects distributed procedural. I use a random scale and objects going beyond the plane's borders. I want to restrict objects to only plane. I tried to use a mask by cube on ...
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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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### 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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1 vote
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### Preserving the width of a rectangular shape when extruding geometry at different angles

I am using Blender to create typography and 2D designs with basic flat shapes. I really like the general workflow for this; here's an example of one I made recently to get an idea of my goal. Right ...
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515 views

### 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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1 vote
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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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### Lost faces creating first donut

Hello not sure what I did or how to bring it back, but this space was empty when I went to start manually sculpting the drips. After saving and loading back into blender the area is filled but no ...
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### Blender Donut Tutorial - Part 9 and 10 - Improper Scale - Geometry Nodes in Blender [duplicate]

I've resolved my first problem with Geometry Nodes since it's my first time in Blender, but I ran into another problem. In these instances, the applied scale is smaller than the target object. I ...
334 views

### Using Geometry Nodes, how do I make modular fence components perfectly follow

I'm trying to make a generic geonodes wall generator. I'm going to be working almost exclusively in grids, and would like to be able to just draw out my walls including 90 turns. The above is using ...
1 vote
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### Rotation along curve in geometry nodes

I was creating a geo node for simple airplane to move along the curve and rotate along its +-y axis when the curve rotates in the 3d scene and set back to 0 when the curve line is straight. Airplane ...
112 views

### Why is Subdivision surface doing this? (unwanted bumps/creases)

Her head is meant to be smooth but subdivision surface is adding strange nubs and creases as shown below: The model is being mirrored if that has anything to do with it.
1 vote
84 views

### Geometry Nodes - Distance Comparison to trigger Geometry Switch

I've been working on a node setup for a while and I cannot for the life of me figure out how to trigger a boolean with a distance comparison. I'm trying to have the the instance geometry switched ...
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1 vote
157 views

### GN "Smooth" Solidify

I've managed to make a smooth solidify: I attach the file. But how could I do the same on a concave or convex mesh? Like, for example, this deformed half semisphere.I've tried adding the normal to ...
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### Overlapping geometry

I am modeling a tank in order to get used to the specifics of Blender (see attached image, although the texturing is not yet complete). After I finished modeling, I noticed that every single object in ...
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1 vote
240 views

### Is there a way to avoid geometry nodes calculating if the object is hidden via the Outliner

I observed that when the container geometry for a geometry node tree is hidden with the eye icon in the outliner, the tree is still evaluated. Is there a way to avoid that? I would have expected that ...
1 vote
117 views

### Fix non manifold edges for 3d printing a lego piece

This is my first ever using Blender and attempting to 3D print. I've cleaned up the piece by deleting edges (Limited Dissolve), intercepting faces (Knife) and deleting some of the non-manifold faces ...
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1 vote
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### all brushes draw differently on different sides

when I use any brush in sculpting mode, I have a problem with how brush work. All brushes draw differently on different sides. That how it looks after I draw. It's like I used CTRL with one side, but ...
52 views

### How to align/fix the uv grid?

I have a smooth grid on the model and I need to make the same smooth grid for texture overlay. I've always used unwrap, but now for some reason it rounds off the grid and the texture overlaps unevenly....
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1 vote
100 views

### How to compute Hair Curves tilts after Deform Curves on Surface node?

Hair object is incredibly useful for controlled scattering of anything along the surface of a mesh, like hair (duh)... unless you have to animate deformations of said mesh (Hair on a Character). Then ...
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### Filter edges from mesh in geomtery nodes

like on the image. I need to filter edges from crease. So I used equal float node but with no luck.
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### Custom DELETE/TRIM brush in Sculpt Mode

Could someone figure out how to create a custom delete brush in Sculpt Mode? So when you click on geometry it erases the faces. For example, delete the faces inside the red rectangle. So then you can ...
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### How would I create a flowing, gradually turning UV Map for a model? (Have pictures)

I am trying to learn how to do more complex UV-Mapping techniques, and have been running into trouble here. I'm not sure how to unfold/texture these sections (It's a zebra) Where the pattern gradually ...
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### Materials Issue: Weird Geometric Normals

Whenever I apply normals to an object, it gives me this bizarre mapping and reflection that follows the object's geometry. I don't know what's causing it. Hoping to get it fixed.
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### Face of roof somehow deleted and I can't put it back

I somehow deleted a face to my roof... I tried the fill (f) key but it doesn't fill it in all the way... The second picture is what it does when I fill it in... How can I fill it in like it was before?...
1 vote
48 views

### PBR Texture Direction

I'm trying to create a very basic page texture (over the top example used here for visuals) and I'm a little more than stumped. I am using a simple procedural texture and do not want to make use of ...
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### 3D inverse opaline structure - Geometry Nodes?

I'm trying to build on the previous questions asked: 3D Inverted structure and How can we create this gold nanoparticles structure? Here, I am looking to create a slightly more complex 3D inverted ...
197 views

### Make line art modifier more sensitive / pronounced

I am trying to make a render of a hand-drawn style face mesh, and to add the hand-drawn style outlines and sketch lines I am trying to use the line art modifier. Right now, my mesh with the line art ...
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### Best way to parametrically make a series/array of objects that linearly change size in one dimension

Blender beginner here. I have the following objects, which in this case I just created, copied, moved and sized them manually: I'm trying to figure out a way that I can make a series of geometric ...
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### How to make terrain under curve Geometry nodes

So I am just playing around with geometry nodes and looking for a clever way to generate meshes under the curve to form a terrain. I want to be able to play around with the curve itself to make ...
208 views

### How can I make these holes in the surface of my object (chocolate)?

I'm trying to make a chocolate bar that looks realistic and I'm looking for advice. This is my reference: Before reading the below, if anyone just has any tips in general for how to achieve this I ...
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1 vote
78 views

### How to create additional random object batches on the z-axis using geometry nodes

I learned how to randomly place the objects in the collection and let them be placed only once per object. This object was used to prevent the same object from appearing twice. Geometry node for ...
393 views

### geometry node random object placement index random value question

This is the geometry node I connected to. In addition to cones, there are several objects such as spheres in the collection. There is no problem in 3.0, but only cone is repeated in 3.2 and 3.4 ...
103 views

### how do you put feathers into the geometry with geo-nodes?

im Brand new to the Geometry nodes in blender, but it seems better than using hair particles. im doing these project of an 3d eagle, but i cant figure out how to stick the feathers in the faces, and ...
24 views

### Can I attach a Camera to a Sphere which was created with Geometry Nodes? [duplicate]

So basically I have an object with a Geometry Nodes Modifier. Within the Geometry Nodes I add a couple of UV Spheres and move them using the transform node. What I am trying to achieve is attaching a ...
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### Simon Holmedal style with Geometry nodes

Big fan of Simon Holmedal work. Wonder how can we do similar stuff as shown in the reference picture using geometry nodes? Please help to give some tips and tricks on how should I start it. The image ...
23 views

### How can I remove these unnecessary edges? [duplicate]

I somehow ended up with these two selected edges that I do not want. I tried dissolving them, but that did not do anything. Also deleting the two faces on either side and filling them again makes it ...
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473 views

### How to make this toroid-like mesh?

I'm talking about the stack of toroids in this post. My first attempt is on the left. I literally stacked up a bunch of toruses, overlapping them to create a "solid". It renders well enough....
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### How do I bevel a ridge around a ring?

I have made a ring lip around the top of a cylinder. I want to make each top face of the ring (the selected faces) be beveled to make a bumpy ridge around the ring. I tried beveling (CTR + B) and it ...
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### Controlled points on faces

I am new to Blender. I want to create a couple of 3D structures resembling the attached 2D porous structure for scientific publication I was able to create the first part with some help from this ...
130 views

### How can we create this gold nanoparticles structure? [duplicate]

How can we create the molecular structure (AuNPs) below? Using a volume cube can be a solution but I couldn't achieve it properly. Kindly help
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### How to stack random objects on a surface with a shape square Geometry Nodes

I have trouble to create geometry nodes that stack my rocks on a square shape. I would like to create a maya temple so I had the idea to use geometry nodes to do it using rocks. Here is the result I ...
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750 views

### Is having 2 or more Faces with all shared Vertices a bug or valid Geometry?

I stumbled upon an issue in this thread where I discovered that some of my same-sized overlapping faces did not merge with each other despite doing a M > Merge By Distance. But fortunately found a ...
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### Transparent object still shows detail inside

I'm trying to make a semi-transparent milk box that shows the pink liquid inside but not the actual detail of the box itself. I'm currently using a simple transparent and pricipled bdsf shader mixed ...
699 views

### Delete instances on particular points

I have this geometry setup and I’m wondering what would be an easy way to delete points where I have cylinders (red points)? Basically, my goal is to make space for the cylinders and not overlap with ...
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