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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Does Geometry Nodes use Memory or CPU when instancing?

When using Geometry Nodes what part of the computer does it use when instancing, i.e., memory, cpu? When I try to instance large areas the computer is unable to process. My computer is 2014 ...
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1answer
30 views

Building Geometry Nodes

I followed Tutorial 18:44. In Divide and add node should attach wall and then I extrude should stay stuck on walls but it's not working. Every time I extrude the walls go further. As far as I know, ...
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3answers
336 views

Geometry Node - Strawberry seeds distribution (checker pattern)

I got help here just a few minutes ago to set up a geometry node that looks like this. Now I want to skip some of the instances. So it looks more like a strawberry. Like every other or every third. ...
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1answer
36 views

Why there are empty spots in distribute points with geometry nodes?

Why are there are empty spots even though I maxed the amount? Is there a better way to place multiple objects on another object without overlapping? The goal is to make something like this. Maybe ...
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1answer
45 views

How are these geometry nodes called in Blender 3.0? Or maybe you know a better way to achieve something like this (diamond on something)?

How are these geometry nodes called in Blender 3.0? Or maybe you know a better way to achieve something like this (diamond on something)?
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2answers
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Python Scripting: Assign existing geometry node group to newly generate object

I'm creating a number of objects in a loop, how can I assign an existing Geometry Node group to these created objects? I've tried to assign data.node_group.name the name of the group but that just ...
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1answer
69 views

Whether to support rendering multiple attributes at the same time?

For example, if I'd like to render Normal/Parametric in Geometry, Generated/UV in Texture Coordinate, View Z Depth in Camera Data, I am currently rendering one by one, is there any more convenient ...
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23 views

My model is non-manifold because of the eyelids

How do I model the eyelids without non-manifold vertices from multiple faces? I want my eyelids to look solid unlike the rest of the body. Should I just convert the eyelid to squares instead of cubes, ...
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94 views

Randomize position of point distribute geometry nodes

I have this procedural building I created with geometry nodes following a tutorial. I want to use this randomly distribute these objects on a plane while giving the inputs random values. The inputs ...
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27 views

SolidSolver for blender?

This is a question that is asked a lot, and the answers are generally of the "do 15 different things" that don't actually work. (the usual error being deletion of whatever internal vertices ...
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25 views

Dynamically Connecting Points with Curves

I'm running into an issue with the new geo nodes fields that you folks might be able to help with. I'll describe what I'm trying to accomplish first, then describe what I've gotten working, and then ...
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Simple way to verify all geometry on-the-fly?

I have reached a point in my model where I cannot proceed due to accumulated geometry problems. I am trying to do Boolean Differences, and my objects disappear. I've checked that there are no coplanar ...
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Why does my camera clips no matter the "clip start" value I enter? whether I choose 0.0001 or 200 it doesn't matter

Here's the problem for instance. The candy is the center is about 2cm large. But even then, the clipping should be ok with a clip start value of 0.00001. Even weirder, if I set the clip start variable ...
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1answer
27 views

Seperating object from each other [duplicate]

I'm a new blender user, and i would like to work on a motorcycle project. I downloaded a 3d model of an Honda Hornet in STL file, but I would like to be able to separate easily the different parts, ...
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1answer
20 views

Problems posing a kitbash cable run along a path/bezier curve using curve modifier [closed]

I've attached my blend file below https://we.tl/t-2aNH8RbZKT
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0answers
29 views

Aling two dodecahedron on their faces

I am using blender 2.93.5 and I am using the extra objects plugin to create those dodecahedrons. I want them to align exactly (position and rotation)on one of their faces so that everyone of the five ...
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1answer
235 views

making a volumetric XYZ array in geometry nodes

How do I make a geometry nodes setup that does the following WITHOUT using the array modifier, volumetric grid, of evenly spaced instances of a collection (containing two objects that need to retain ...
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1answer
238 views

Blender 3.0.0 - How to use a vertex group in geometry nodes?

Does anyone know a way I can utilize vertex groups to limit the instancing in v. 3.0.0 ? Here is a thread explaining nicely what I'm also trying to do. The thing is, 3.0.0 Beta apparently removed ...
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1answer
56 views

How to amimate bristles vibrating on water surface?

I'm trying to recreate this kind of animation (reference video below) but I'm wondering the best way to animate the water at the bottom and the water drops. It could be, particles, fluid simulation, ...
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3answers
298 views

How can I change a cross-sectional area of a solid by a percentage?

I have a geometry of an artery that I would like to expand, increasing the cross-sectional area by exactly 240%. Is this possible? The fatten tool allows this expansion only by a fixed dimension, not ...
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22 views

Blender Booleon affecting sculpting geometry

I am following a tutorial made by Grantt Abbitt and I added a Boolean to my axe head and when I enter sculpting mode after applying the Boolean I get really weird object shading. Ive tried different ...
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56 views

Geometry Nodes Animation to After effects

I have a scene with several replicated collections in Geometry Nodes which I want to animate and then export certain placeholders for Solids in After Effects. What I want to export are instances as ...
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2answers
29 views

Change Color According to a Location

So I basically ask for points of this cube to color according to their distance for the origin. So if the color ramp is black to the white furthest point should be black and the closest one must be ...
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1answer
130 views

Inflate geometry with fixed inlets and outlets

I am new to blender, and I am looking to inflate the geometry of an artery like a balloon. I have used the shrink/fatten tool and it produces the outcome I desired except for the inlet and outlets. I ...
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0answers
207 views

Obtain position of point in geometry node

I have a mesh in which I have two vertices in a vertex group. I would like to create a line between those two points. For that, I have tried to add a Line node ...
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1answer
66 views

how to close geometry automatically? [duplicate]

I did a mistake while modelling this object, i duplicated all parts but i forgot to fill the back faces before duplicating it. I would like to know if theres a way to fill all faces without having to ...
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2answers
21 views

what is the function of clear custom split data

I was making a model and then when I wanted to add Auto Smooth this weird thing appeared. Searching online I could fix it by going to Geometry Data and pressing Clear Custom Split Normals Data. I ...
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1answer
29 views

Geometry seems to disappear when attempting to separate objects

I'm attempting to model a .45 ACP bullet as a practice exercise, and am exceptionally new to Blender (if not StackExchange). The modified cone - the upper element - is the bullet, and he cylinder - ...
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1answer
35 views

Array modifier and rotating around geometric object (decagon)

I have a decagon that I'm trying to place 20 upside down "U" shape dividers around it using the array modifier but every other "U" shape is not matching up. How can I fix this so ...
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1answer
54 views

I need to find out how to add an UV map to a newly made face via a script

This code creates a simple mesh (with two polygons instead of just one), but I am unable to find out how to give each vertex in the mesh a proper and precise place within the UV map. The idea is to ...
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1answer
46 views

Creating gap in bottle like object

I am thinking of creating the gap first and then creating a separate object for the round blue plastic like hole or ring. But I can't seem to use a simple Boolean because when I add a subsurface ...
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0answers
16 views

Shader Nodes: Geometry Normals BEFORE displacement

Both True Normal and Normal act after displacement. How do I access the geometry before displacement? EG: I have a displacement that I do not want to act on the edges, therefore I would like to mask ...
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1answer
88 views

Geometry nodes: scale instances based on distance between two planes

I would like to use Geometry nodes to instance pillars (cylinders or columns with their origin at the bottom) on the lower plane. Then I want to scale these in the Z-direction so that the pillars ...
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1answer
38 views

Stationary Blender particles on rotating circular plane not rotating as if following planes rotation

I want my particles to rotate as the circular plane beneath them rotates in order to give the impression of ships or cars travelling in a circle. My particles normals are not orienting in the ...
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1answer
36 views

Coffee clips when rendering image [duplicate]

As you can see here the coffee starts clipping and suddenly becomes invisible. And I don´t really know what to do...
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0answers
32 views

Generative Water Rings

Does anybody have a recommendation of how to create generative water rings, non animated, I need to create many variations and simulation seems like an extra step if this effect can be done with ...
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1answer
52 views

Shading issue with object

I have created an object, when I render it in EEVEE the shading looks decent but when I render it in Cycles it seems to have clear lines where the shading falls. I tried a shade transfer from another ...
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1answer
28 views

Skin modifier applied to disjoint mesh

I have a mesh made only of edges. If the mesh have only one connected component, then I can apply a skin modifier and get something with surface that I can render. This is the input mesh Ahd this is ...
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1answer
33 views

Does Blender have a Solidify effect that offers variable thicknesses?

Is there a mechanism in blender similar to the solidify modifier that would allow me to apply thickness to a series of faces but have this thickness increasing or dropping off in certain places? For ...
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2answers
30 views

Forcing a flat edge when using the subdivision surface modifier

I'm trying to create a low poly bathtub in Blender that I intend to print off using a Resin 3D printer. I'm using the Solidify modifier to give the walls sufficient thickness to print, and the ...
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0answers
20 views

How to Link Materials [duplicate]

I have a geometry and 35 other similar shaped geometry. I want to transfer the same material to correct faces from that source to other 35. How to do it?
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2answers
62 views

Is there any way to fix the awful topology on curved text?

So I'm trying to make a license plate and have it bend around a shoulder like armor. Not sure if it's the best method, but I got the text on there by typing it out, bending both it and the backplate ...
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1answer
24 views

Why does the Attribute Sample Texture have 4 columns in the resulting attribute?

In the "height" attribute, why is there a column with only zeros? What does it represent?
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1answer
37 views

Shading issues showing in rendered Cycles viewport but not in solid viewport

For some reason when I render the object in viewport 3D Render I see these lines that look like weird shading or geometry. But I have fixed this in the Solid Viewport where they don't show up. Also I ...
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1answer
15 views

How Can I Erase the Strength of a Grease Pencil Stroke With a Solid--NOT Softened--Brush Effect?

If I use the Strength feature to erase a Grease Pencil stroke, even with a full brush strength of 1.0, I get the softening effect shown in the red square. I want a hard-edged erase effect, one that ...
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1answer
12 views

Vertex seem linked, will deform wildly if certain other vertex are moved?

I've downloaded a native blender model that somebody else created and put online and I want to make some changes to it to better suit my needs. The original creator isn't responding to messages so I ...
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0answers
33 views

Finding a bend angle

Frankly, this is a geometry-heavy problem that might belong in the math stackexchange, but it's very easy to describe through blender, which I'm using to experiment/try to solve it. I have a length of ...
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2answers
40 views

What do the axis values on the Point Rotate node represent?

When Y = 1, does it mean that 100% of the rotation is being influenced by the Y-axis? so when Y = 3 its influencing it 300%?
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1answer
131 views

How does the Attribute Sample Texture node work?? I'm a beginner at Geometry Nodes

Okay, I'm not entirely sure how to phrase this question but I'll give it my best shot. I've just started learning Geometry Nodes and today I tried out a course in which I learned how to make grass ...
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26 views

How to divide an object into several objects by loop cuts

I have here a cube that I’ve cut once along all three axes. I want to make 8 smaller cubes (individual objects) out of these divisions. How can this be done? The cuts did not create an intersection ...

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