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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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 ...
• 37
187 views

Instances are shaking when using geometry proximity node

I am making a simple animation using the amazing Geometry Proximity, and I have a little problem: the instances shake weirdly when the proximity target object moves ahead. Here is the node tree:
1 vote
377 views

Why is my material black after using geometry nodes

Hello I'm not sure when my material went black, but it is showing in the preview in the right panel. If anyone can help me figure out why this is doing this, it would be much appreciated. Thank you sm,...
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1 vote
111 views

I'm working in MATLAB on a problem involving the motion (translation and rotation) of a superquadric in a 3 dimensional space. I've written a code that computes the position (3 Cartesian coordinates ...
• 111
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Morphism using geometry nodes without the Transfer node [duplicate]

In this new version of blender3.4 they take away the transfer node. How can we make a morphism without using it?
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30 views

How do I make a shape-key out of two meshes with identical geometry but with different facial expression?

I have two meshes of the same character which I extracted from a game. One mesh is eye open, another's eye is closed. Say the eye_open one is mesh_A, and the eye_closed one is mesh_B. A and B have ...
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1 vote
86 views

Capture the shortest path order

After banging my head multiple times against the wall I've decided to reach out to this community again because I'm sure the answer is simple and it's me who is missing something. So I have this very ...
• 105
109 views

How can I recreate a model with multiple view angles?

I have a image of a head from 3d.sk that shows 3 angles with the polygon faces easily visible. I had the idea to set up multiple cameras and try to eyeball the placement of the vertices but it's ...
120 views

How to make FLAT grass in particle system, without template multiplying

i achieved effect of flat grass with particle system, and can not replicate it, even with Blender file Could anyone tell me, how particle grass is flat, and not round?
196 views

3D Voronoi with Internal Geometry?

I want to 3D print a model of a vertebra for my brother but I wanted to spice it up and print it in a voronoi style. I'm aware that this can be done by adding wiremesh and sub surf modifiers. The ...
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Strange shadow being cast/ lights not diffusing correctly

I'm having an issue in one of my scenes where a half of the wall is darker than the other and the lights aren't illuminating it. There are no objects in the scene that could be making this darkening ...
93 views

Moving rigged/animated object breaks it?

I am trying to move a rigged and animated mesh to the origin, since when I export it to fbx and import it in unity, as soon as I hit play it shifts to the offset it has in blender. Unfortunately, if ...
• 101
1 vote
392 views

Using Realize Instances node in Blender distorts/deforms/messes up/ breaks original shape (Curve based mesh)

I'm trying to generate pipes from a shapefile I loaded in Blender via the Blender GIS plugin. So far I have exactly the result I want from using geometry nodes, and now I want to convert it to a mesh. ...
• 11
208 views

Blender Face Weigted Normals using manual face selection sets

I have been using a super powerful script in maya created by Etienne Nadeau called the Normal Toolkit. Basically it allows you to pick out your chamfers manually and run the script on your mesh to ...
1 vote
13 views

Randomize values for each nested Geonode? [duplicate]

I have a nested geonode of generated plants, and I want to randomize these plants with another geonode. But once I plug into a random value into the instanced plant, it shows me an error. Is there a ...
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How would I combine these two models in sculpt mode?

I'm trying to merge this box onto this helmet using sculpt mode. I've seen this done before but I don't remember how. I tried using a boolean but there were some edge errors. I might be wrong but it ...
• 175
42 views

Question regarding the Geometry node "Curve to Mesh" [duplicate]

I'm trying to make a sweep with the geometry node but I can't achieve the result I want. My final object is totally deform.My goal is to obtain the left object. For the left object I use the 2D curve ...
109 views

Trouble creating procedural wave geometry like Maya Lin's wave field sculpture

Hi I'm trying to recreate this kind of geometry in blender procedurally if anyone knows how to do this for an beginner/intermediate blender user. Thank you!
• 13
207 views

Geometry Nodes: how to calculate custom normal deformation?

GN currently doesn't support Custom Normal input, however you can import them as some other data. Once. If however the mesh is animated, those normals need to get deformed too. It seems that having ...
• 623
1 vote
54 views

what is the best way to smooth the loop in a mesh like this

the loop in (and around) this object is very low-poly and I want to change that. I have tried subdivision but that only causes more problems this is what happens when I do Ctrl + V > Smooth ...
• 602
199 views

How to prevent overlapping when moving meshes?

Is there a way to prevent overlapping when moving meshes? I'm trying to emulate the assembly of planks in a furniture or cut stones in a wall. EDIT : It is a GUI manipulation that I'm looking for. A ...
• 755
1 vote
350 views

Output amount of instances in Geometry Nodes

Let's say I populate a plane with points, each point is a rock, is there a way to count exactly how many instances are generated?
301 views

How can the pillars of a looped bridge be stopped of touching the road underneath?

In a previous question (Link to Question) I asked about letting the pillars of a bridge automatically touch the ground. This was solved by @Chris Now I am wondering if there is a way to avoid that the ...
• 335
993 views

Create mesh from four curves (Loft)

I want to create a smooth mesh using four curves. I want to animate the curves so that it changes the mesh. Basically, I have the four curves(black lines) in the picture. Just want to cross link ...
• 113
91 views

How do I get a selection of points, which don't have another point above them in a certain Z distance?

I'm doing some mesh to voxel geo nodes and want to transform a given mesh into a blocky shape. Then I only want to colorize the top layer of the blocks. That's where the problem begins: How can I get (...
1 vote
62 views

Make distributed points on faces' rotation follow a curve orientation - Blender GeoNode

I have troubles making distributed instances rotation follow curve orientation. This is what I got: (red arrow is showing the unwanted orientation) This is what I want (red arrow is showing the ...
300 views

assign objects with their children, as seperate instances, to random points of a geometry, using geometry nodes

I want to put objects with their children, that are positioned in a collection, as instances to some random generated points. I don't want to add all the objects of the collection, but a portion of ...
50 views

How do I combine these two Geometry Node trees?

The goal was to make curves with round ends and also animate the "start factor" and "end". I found 2 tutorials demonstrating the same thing. There is 1 video on how to make round ...
105 views

Weird results using Solidify tool

I am in the process of creating an asset for a character model, and when I try to use the Solidify tool to thicken the surface, I get a strange result where some faces thicken in the opposite ...
305 views

Trying to align multiple instances of an object normal to faces using geometry nodes

I am trying to align instances of an object normal to faces using geometry nodes. The one in the circle is the only one correctly aligned. I have tried all the solutions I have found on youtube or ...
• 23
292 views

Problem with object geometry when applying bevel

When I apply bevel modifier to the mesh, some vertexes merge to the Origin point of the mesh blowing up the geometry. There are no doble vertexes, faces, ngons. The Normals, Scale are correct. I ...
• 35
546 views

How to eliminate obvious proximity crease intersections?

I've created a geometry node setup where instanced objects act as proximity objects used to displace a ground. Whenever the proximity objects are close together, there is a glaring edge between both ...
• 129
1 vote
29 views

How do I remove this weird geometry from my lens

so here is the issue guys: is there any way I can remove that geometry effect from it, making it clear?
1 vote
49 views

Blender 3.x screw across uneven cylinder

So I've been following along at https://www.youtube.com/watch?v=Ys_8P9Et28I to make a leather handle for my war hammer. However, my model has a handle which tapers which means the geo get's a bit ...
• 113
1 vote
15 views

How to clean up FBX. files imported from VectorWorks CAD software [duplicate]

The .fbx files I import into Blender from my CAD program seem overly complex for simple shapes. Is there a way to simplify the geometry/remove vertices so I have easier planes to work with for ...
• 11
28 views

Fade in Object, but without the need of animate the texture or material

Is there any way to Fade in and Fade Out an object via ID or Group? (not Material itself?) I'm doing an scene on Eevee by rendering everything via viewport render (the quality is schematic so that's ...
• 5,307
429 views

Extruding Roofs out of Surface in Geo Nodes

. Hi Iam trying to build a building generator. For this i need to extrude the roof from a flat surface. The Input to the Nodes: The optimal Result: (With a mesh subdivision and a triangulate modifier)...
• 130
25 views

Rotation of rigify doesn't work even with modified weights

I have made a model of a cartoon character with a pointy nose but unfortunatly when I applied automatic weights it didn’t work properly so I then changed those weights and it works for most of the ...
188 views

Thicken walls in geometry nodes properly, accounting for concave corners

I have run into situations where I wanted to do this multiple times now, but I have yet to find a way to do it. Lets say I have the following geometry, generated using geometry nodes: And I want to ...
• 97
330 views

Baking normal map causes weird shading

why does shading look better when normals are inverted? I baked the normal map of my sculpted rock onto the low poly mesh. Best regards EDIT: bevor baking I enabled Auto Smooth on both the meshes (...
189 views

Custom Spiral with end and start line - Geometry nodes

I want to create a spiral with the start and end points extended, as shown in the image:
• 447
152 views

How would you model this cloth seam/border?

I am trying to model this outer seam boundary. I tried half pipe and shrinkage modifier, also curves, but it all looks crappy.... I don't know how to connect it to the main model. I appreciate any ...
• 23
511 views

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 ...
339 views

Set Curve Radius of **Realized Instances** by Spline ID

I have a series of Splines (10 in the below example), created by realizing the instances generated by an Instance on Points node: I am attempting to randomize the radius of these Splines. If I ...
• 931
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How do I extrude faces inwards without creating bad geometry on the outside

I want to create a stair-like feature on the roof. To do this I have been using loop cuts and extrude to build out the stairs. However I encounter numerous problems each time. 1. is the outside which ...
664 views

Is it possible to export 'Instances' data from Spreadsheet viewer?

Until patch https://developer.blender.org/D12546 is available, is there an existing, alternate method (e.g. third party add on, python script) for exporting the geometry node instance positions from ...
66 views

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 ...
401 views

Geometry getting ruined when doing cycles rendering?

The geometry of my model is being destroyed when I try to render it using the Cycles render engine. The normals are not the issue. When I try to render it using Eevee or conduct a material preview, ...
193 views

Geometry Node Bridge Fill

I'm trying to create a procedural way to connect paved areas of varying elevations and slopes to a terrain model. There are excellent plugins such as Archipak to do this with flat building slabs and ...
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1 vote