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Questions tagged [geometry-nodes]

Use this tag for questions regarding Geometry Nodes, a modifier added to Blender in version 2.92 to manipulate geometry in a Blender scene.

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Select positions of points in Geometry Nodes

I am trying to attach some instances (of a sphere) on some specific points of a disc mesh (say some specific points on the top portion of this disc) using geometry nodes. Is there any way to attach ...
Arun Nura's user avatar
  • 419
6 votes
1 answer
732 views

Align Euler to Vector (recreating follow path with Geo Nodes)

Trying to make a simple follow path node setup with Geo Nodes and having issues with the Align Euler to Vector. Result should mimic the follow path (with banking and rotation) modifier. No matter what ...
GifCo's user avatar
  • 163
1 vote
0 answers
107 views

I can't randomly distribute the contents of a collection in Blender 3.0 geometry nodes [duplicate]

In 2.93 I can easily randomly distribute the contents of a collection within a geometry nodes graph. In 3.0 how would I now achieve the same result? I've attached an image from both 2.93 and 3.0 to ...
Gavin Whelan's user avatar
0 votes
1 answer
574 views

Geometry Nodes: Distribute on texture in a grid

I would like to distribute evenly spaced geometry (like in a grid) on a globe so that only the black marked area is filled. Currently, the objects are only randomly distributed via the Geometry Nodes ...
michael-kiss's user avatar
12 votes
3 answers
7k views

Where is a proper way to get back UV map after Realize Instances? [duplicate]

Where is a proper way to get back UV map after Realize Instances? So let's say I have a distribution of the instances: When I enable "Realize Instances" I completely lost my UV data, while ...
Crantisz's user avatar
  • 32.4k
10 votes
1 answer
2k views

Import data (x,y,z + attributes) from file into geometry nodes

I have some data with cartesian coordinates + some attributes (e.g. size, rotation, and/or color) outside blender and want to use that as basis for geometry nodes. For example, I want to use the ...
Phann's user avatar
  • 447
2 votes
1 answer
671 views

How can I drive the vector input of a texture in geometry nodes?

So I'd like to remap the texture generated by a noise texture node in geometry nodes, similar to how I'd do that in shader nodes by plugging texture coordinate+mapping into the vector input of the ...
Szilárd Egyed's user avatar
0 votes
1 answer
72 views

Randomize material on procedural cubes in new "Fields" Geo nodes in 3.0 alpha

Below is an example setup of my geo nodes. How can add a random material to faces of each cube with latest geo nodes fields update?
drejohnson's user avatar
0 votes
0 answers
1k views

I can't find "instance on point" node, just "point instance" [duplicate]

I'm following along with a "game-like" tutorial using version 2.93. There comes a point where the guy says use the Instance on Points node, but I can't find it, I can only find Point ...
RichRareRefined's user avatar
4 votes
1 answer
175 views

How to slide a box with Geometry Nodes over rollers?

First picture a cube animated to be moving in the y direction. As it moves, it passes over conveyor rollers. Each roller then begins rotating because of the contact forces. I am trying to animate ...
JB Riley's user avatar
  • 467
0 votes
1 answer
196 views

is there a modifier that can smooth geometry but keep boundary vertices position unchanged

Is there an modifier that can smooth out vertices while preventing its boundary vertices from moving? What I am searching for is basically smooth modifier but with "Pin Boundaries" ...
nena's user avatar
  • 107
1 vote
0 answers
55 views

Use Instances Names to create custom render file names

I am trying to render many frames of a character with different accessories and characteristics, I would like to give each image the name of these characteristics which I am instancing with the ...
Bosco CQ's user avatar
6 votes
1 answer
900 views

Assign random material to instances on points

With the new Geometry node network (Blender 3.0.0 alpha downloaded today), how can I assign a material to a random selection of my instances? I only managed to assign two materials to a random ...
fabmeyer's user avatar
1 vote
0 answers
266 views

Custom textures in new "Fields" Geo nodes [duplicate]

Does anyone know how to use custom image textures in the new Fields refactor of geometry nodes? There used to be a node called attribute sample texture, I cannot find the equivalent now. Thanks in ...
Blue Torch's user avatar
1 vote
1 answer
849 views

Blender 3.0 did they change the geometry nodes structure?

I've been checking 3.0 alpha builds for a few months already and there appeared one major change in Geometry nodes: all the attribute nodes have gone (except two). I thought it might be just a ...
3DBear's user avatar
  • 665
9 votes
2 answers
5k views

Geometry Nodes: Is it possible to merge multiple curve segments?

I am using Geometry Nodes in Blender 3.0 to generate a bunch of curves and I would like to join them together - ideally converting them to a single curve object. The Join Geometry node allows me to ...
Sebastian Feistl's user avatar
1 vote
2 answers
741 views

subdivision surface is not working on geometry nodes

I've added a mesh subdivide to the cube, but it doesn't work. how to add a subdivision surface through geometry nodes?
clinton's user avatar
  • 29
0 votes
1 answer
119 views

Translating a geometry node changes its color

I have a pretty simple geometry node based on a plane: What it does, it takes an hexagonal polygon as mesh, places it on a grid (yellow hexagons on the picture below - same color than source object), ...
Laurent Crivello's user avatar
2 votes
1 answer
145 views

how to make this kind of rope [ with bristles ]

i want to make this kind of rope. any ideas how to do it , especially the bristles
Abdullah Salih's user avatar
0 votes
1 answer
152 views

How do I randomly add points across geometry nodes

I was making a geometry node tree and I was wondering how I can use the point distribute an Icophere across my mesh?
Quantian2's user avatar
1 vote
0 answers
471 views

Blender 3.0 alpha: Geometry Nodes deprecated node alternatives [closed]

I am working through geometry node tutorials and am finding nodes in version 3.0a that have already been deprecated within 2 weeks of a tutorial being uploaded along with, of course, the other 'legacy'...
David Gonzales's user avatar
7 votes
3 answers
2k views

Dashed link lines in node editor

While testing a change to an add-on that automatically creates node groups I noticed that the links in the group in the Geometry Node Editor window were dashed instead of solid. It seems to be related ...
Rich Sedman's user avatar
  • 43.8k
2 votes
1 answer
783 views

Texture over geometry nodes array

I have a series of cubes generated by a "Point instance" geometry node over a simple grid. The texture is assigned to the source cube (on the right). How can I add some UV coordinates, so ...
Rafael's user avatar
  • 318
1 vote
0 answers
356 views

Geometry Nodes: Align rotation to vector with fields [closed]

The align rotation to vector node was removed in the 3.0 alpha and I was wondering what the math was behind this node to achieve the same result in Geometry Nodes with fields.
TheJeran's user avatar
  • 1,784
5 votes
1 answer
16k 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 ...
jjcasmar's user avatar
  • 309
1 vote
1 answer
404 views

Generate a mesh given a vertex group from another mesh

Lets say I have a square meshed with a lot of triangles. I would like to generate a box following the position of a vertex group of the square mesh. This is my input, with the vertex group selected. ...
jjcasmar's user avatar
  • 309
4 votes
1 answer
1k views

Geometry nodes: How to distribute points on valleys only?

I want to add vegetation to my rocky semi-desert scene of Himalayan mountains, using geometry nodes. In that scenery, vegetation only grows in valleys, where water would sometimes flow. Note that by '...
naftali10's user avatar
  • 115
0 votes
0 answers
100 views

using random face corner attribute value for radomized color faces

Trying to use face corner attribute to randomize mesh face colors (grayscale at the moment). Seem not to work properly so far. Its weird that similar concept have done using python and bmesh, worked ...
barakooda's user avatar
  • 163
0 votes
0 answers
30 views

Colorize Point Instance from texture _ Geometry Nodes_ [duplicate]

I'm working on 3d carpets assets with Blender, i'm using Geometry Nodes for scattering the fur. I wish colorize the instances with the pixel color on my "emiter" shader difuse texture. We ...
Bretbar Baron's user avatar
5 votes
3 answers
2k views

How to do a recursive Shrink/Fatten with Geometry Nodes?

I want to create an effect where a mesh is duplicated and then shrunken down by x amount, recursively y iterations. Something like this (for visual reference): I came pretty close by layering ...
Mentalist's user avatar
  • 18.5k
2 votes
0 answers
55 views

How to distribute points on valleys only? [duplicate]

I want to add vegetation to my rocky semi-desert scene of Himalayan mountains, using geometry nodes. In that scenery, vegetation only grows in valleys, where water would sometimes flow. Note that by ...
naftali10's user avatar
  • 115
1 vote
0 answers
101 views

creating a landfill [closed]

I would like to create a large landfill in blender but I'm not quite sure how to go about it. I would like to create something like this: I have this low poly trash I have downloaded that I would ...
Eva's user avatar
  • 65
6 votes
1 answer
272 views

How to Make flower petals compressed INSIDE a Sphere

i want to make flower petals compressed INSIDE a Sphere. just like this image. i just want the petals inside , not the sphere part nor the upper part
Abdullah Salih's user avatar
4 votes
1 answer
835 views

About getting vertex positions between two models by geometry node

I want to do the following. I want to acquire the vertex position information of two models A and B with the same structure at the geometry node, blend them, and then reflect the result in the model. ...
BBQ's user avatar
  • 43
3 votes
1 answer
381 views

Sinusoidal damping from distance object (Wave function - Geometry Nodes)

I am attempting to replicate blenders wave modifier using geometry nodes but have run into a hurdle trying to implement damping(fall off), due to a limited understanding of maths. I'm combining these ...
special_frog's user avatar
1 vote
1 answer
1k views

I want to change between geometry nodes via script instead of the dropdown menu in the properties section

i added a Geometry Node Modifier via script to a grid i have, now i want to change this modifier from the default empty geo node to a geo modifier i already finished, which sits on an object in the ...
blender_n00b's user avatar
0 votes
1 answer
91 views

Vector Rotate random on two axis (geometry nodes)

I'm learning a bit about geometry nodes, and they are great, but it's not always clear how to control them the way you want. So, in the scene I'm trying to align the human figures in front of the ...
Jack Fisherman's user avatar
0 votes
1 answer
701 views

How to add color based on height of a single geometry nodes mesh

what can i do to get a effect like this https://www.youtube.com/watch?v=F1kBax6Z8s4 . i have made the animation in geometry nodes . how can i then affect the opacity of the single letters according to ...
Mohammed Faihan's user avatar
1 vote
1 answer
140 views

Geometry Nodes for Manipulating the shape of animal scales

I am currently working on a way to cover a model with scales in a modular way. Therefore I’m using a triangulated mesh, where every vertex gets replaced by a Scale. So far, everything works quite ...
nico.lindenlauf's user avatar
1 vote
0 answers
87 views

Texture coordinate isn't working as desired when shading distributed plane with icospheres using geometry nodes

I'm trying to create an animation using a plane distributed with icospheres that is affected by another shape using the proximity attribute in geometry nodes. Now the problem is when I use a texture ...
Kenji Bailly's user avatar
1 vote
1 answer
256 views

is there is a node, among geometry nodes, that outputs an object ( orange slot )?

I would like to make a grid of lines: how to transform lines into objects that I can plug into "Point instance" ? I have inspected all the nodes, there is no node, in the current release of ...
user356815's user avatar
2 votes
0 answers
80 views

Is there a way to force blender dynamically calculate the (random values of) Geometry nodes for instances used in another geometry node modifier? [duplicate]

Currently just playing around to learn ins and outs of geometry nodes. I am trying to make a bush-like plant - that potentially could be used as a branch for a tree, and possibly the trees would be ...
Moridio's user avatar
  • 17
2 votes
1 answer
313 views

How to copy object's name to that same object's Geometry Nodes modifier's object input with Python? [duplicate]

I'm following this tutorial and it requires some intense manual labor in the section where the video starts in the link. How can I copy object's name to that same object's Geometry Nodes modifier's ...
Manu Järvinen's user avatar
1 vote
1 answer
848 views

Geometry nodes - Trim Curves with different values

I've created geometry containing of 3 overlapping circles (pic 1, pic2), and rotated each circle 120deg on Z axis (pic2). Then I've generated a mesh line of 2 points, and instanced my previously ...
Kotanet's user avatar
  • 111
0 votes
1 answer
751 views

Geo Nodes: Align point instance to normal - tangent

I am attempting to replicate blenders particle system alignment using geo nodes. the issue I'm having is that I cant get the particles to stay upright, is it possible to align to something like normal ...
special_frog's user avatar
1 vote
1 answer
1k views

Count of instances in Geometry Nodes

I am using Geometry Nodes in Blender, based on an input image, and scaled instances based on the image color. Is there a way to know how many instances are display (scale > 0) ?
Laurent Crivello's user avatar
0 votes
2 answers
2k views

Geometry Node : Point Instance with normal

I'm using Blender 3.0.0 alpha. I want to copy object to line (point instance) with maintaining object's normal, but I can't find how to it. Someone said using Align Rotation to Vector, but it doesn't ...
Youdi's user avatar
  • 65
2 votes
3 answers
2k views

How do I enter rotation values in radians?

I personally prefer to use radians instead of degrees whenever possible, is just more comfortable to me. Is there any way to set blenders UI in a way where I never have to use degrees ever again and ...
JPR's user avatar
  • 21
0 votes
0 answers
254 views

Using geometry nodes rotate a displacement texture around object

With the displacement modifier you cannot free rotate the displacement texture around an object it is limited to specific axis. I want to use geometry nodes to rotate my displacement textures around ...
Shawn Becker's user avatar
1 vote
1 answer
209 views

Cycle through integer input values in geometry nodes

I am searching for a way to cycle through my input values in geometry nodes but can't find a simple way. Lets say my inputs are integers from {0, 1, 2, 3}. What i want to achieve is that if the value ...
blender_n00b's user avatar

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