Questions tagged [geometry-nodes]

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

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0answers
79 views

Custom UI List consisting of only Geometry Nodes type of modifiers

I wanted to draw a UIList consisting of modifiers. This UI List should only contain GeometryNodes modifier and those starts with a particular name like Terrain_ I have gone through multiple resources ...
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1answer
70 views

Tetradecahedron / polyhedra in blender [duplicate]

How can I go about creating a Kelvin’s Tetrakaidecahedron Cell / tetrakaidecahedron. I'm willing to try it using Geometry nodes, Python, etc.. For more background on what it is. Tetrakaidecahedron (...
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1answer
41 views

Issue rotating points in the geometry node to center

I have a bunch of "Crosses" that I am attempting to point to the center of the object that holds the geometry node (so (0,0)) which is just a smile equation of (Tan(y/x)) but for some reason ...
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0answers
40 views

How to scatter objects based on texture color data with Geometry Nodes?

So the idea is to interpolate a heavily pixelated image into 4-6 tints of grey. Based on the value of that local pixel I want to add a specific object. The plane will be subdivided into the ...
3
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1answer
151 views

Is there a way to Bridge Edge Loops with Geometry Nodes?

Is there a way to Bridge Edge Loops using Geometry Nodes? Like if I have two edge loops, each assigned to a different vertex group of the same vert count, is there a way to get Geometry Nodes to ...
5
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1answer
122 views

How to put an attribute value in "from Min" from "Attribute map range" node?

Is it somehow possible to put an attribute value in From Min/From Max? What i want is to have control over e.g. scales of all distributed instances. i want to scale them randomly... e.g. from start ...
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0answers
24 views

How to animate plane to sound falloff in animation nodes lastest version (Blender 2.93)?

For Blender 2.93, i tried to recreate the sound falloff on a plane from the Animation nodes 2.0 Documentation: So far i came up with this, but it does not work, i can not figure out why: Can someone ...
3
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1answer
319 views

Instance a plane on a cylinder using geometry nodes

Using a cylinder with a couple of loop cuts added I just add a plane and then point instance this on the vertices of the cylinder. Can I make the planes attach to the faces instead of the vertices? ...
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0answers
264 views

Assign materials to geometry node primitives

I have two icospheres. One inside the other to represent a human cell. I put 2 materials on the geometry in the "real world", meaning outside of the node network. I then assigned the ...
2
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1answer
98 views

How to use output from Attribute Sample Texture as seed value to Point Distribute?

I am sampling a texture based on the position attribute. I am storing the result into a variable named "textureValue". I would like to use this value as an input to seed a subsequent Point ...
6
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1answer
454 views

Smooth shade icosphere created by geometry node

I am setting up a cell for medical visualisaztion with parameters on the outside of the node group so people can change things and re-use the asset in various animations. Now I have a very basic ...
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0answers
71 views

Access to object properties via drivers in Geometry Nodes

I noticed that when I use geometry nodes to scatter object instances they inherit the scaling of the parent object. I would like to compensate that by dividing the instances by the parent scale first, ...
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0answers
49 views

Blender geometry nodes stretching objects

i am new to blender and was trying to instance leaf (distribute leaves) but when I applied geometry nodes the leaf object gets stretched
2
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1answer
132 views

Is it possible to distribute points based on height?

Is it possible to distribute points in the geometry nodes based on height like it is with colors in the material nodes? I have this terrain and want points distributed on the blue color. I don't ...
1
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1answer
91 views

How to Shrinkwrap bunch of planes to a Sphere while maintaining the planes' dimensions?

This is what I'm trying to achieve: (notice that every plane object have the same dimension) And this is what I came with so far: The problem with this is that I need my planes to have four equal ...
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0answers
195 views

Use point index in geometry node distribution

I'm playing with geometry nodes here and I'm trying to create a way to kinda script the position of each point... for that i'm thinking of creating an attribute that would work as index, something ...
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0answers
46 views

Geometry nodes UVMap Point distribute mask

Having some trouble with Point instances not appearing where expected using a UVMap as a mask. Using a simple Black,White image and UVMap to denote each Faces edge, so Points should only appear on ...
2
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0answers
241 views

How to add material to mesh generated by geometry nodes

What I did is the following: I created a new material and set the attribute "material index" on every face to 1 (0 doesn't seem to work). However this does not seem to have an effect on the ...
3
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0answers
122 views

Geometry Nodes: Is it possible to transfer an attribute from point cloud to instance?

One situation that I often encounter while making animations with geometry nodes is the transfer attributes from a point (in a point cloud) into an instance that's created using that point. A typical ...
2
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1answer
475 views

Get Point Coordinates generated with Geometry Nodes?

Say you generate some random points using Geometry Nodes, how can you get all those point coordinates using the python api? The only hint I have is that the point coords are located under Point Cloud ...
2
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1answer
361 views

Geometry nodes: how can I get a different random float (or seed) for each object?

I've never used geometry nodes before, but in a project I'm working on I want to randomize the scale of about 200 copies of the same object so I figured I would try geometry nodes. In shader nodes you ...
2
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2answers
346 views

Assign random material to whole object using Geometry Nodes

I have a Geometry Nodes setup which distributes a cube on an icosphere. I want each of those cubes to have a different material and so on the original cube I created several materials (images of a cat,...
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0answers
125 views

How to turn an attribute to an integer output with geometry nodes

I want to use a custom attribute as float/integer output, is that somehow possible? e.g. drive the radius of a Circle by an attribute. Like this:
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0answers
77 views

Geometry Nodes - rotate point along curve tangent

How can I rotate each point so that each follows the tangent of the curve using geometry nodes? Right now, every point’s rotation is the same.
3
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2answers
499 views

Geometry nodes after Array

I am exploring the new geometry nodes, my goal is to create a very simple procedural tree: a brown cone and a few green pyramids on top of it 🌲. I would like to apply random variations to the ...
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0answers
22 views

Is it possible to add boid behavior to a Geometry Node point distribution?

Specifically, I would like to know what the vector is to the closest other point created in geometry nodes. I created them with the standard Point Distribute. This is basically Boid behavior, where ...
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0answers
43 views

I can't find UVdata from shadernodes

I made a UV position of a square mesh, which is located at 0〜3 lines in the spread sheet, in geometry nodes.But I can't find it from an input UVdata node in shader nodes. How can I find it?
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1answer
144 views

Can I set an instance's custom property with an attribute node?

I've successfully created a little "pointed cube" object with geometry nodes - a cube with a pointed "roof", where the roof height is controlled by the node setup: so there is an ...
1
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1answer
44 views

Angle issue in Point Rotate node. [Blender 2.93.0]

I am trying to generate a circle from points turned towards the center and for some reason magic (or a bug) happens. As you can see, for four elements the angle is 90 degrees, but in radians, ...
3
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1answer
297 views

Geometry nodes convert to instances

Can I convert the instances made with geometry nodes into real instances? If so, how? When I apply the modifier, it becomes one mesh instead of separate instances. I am using Blender 2.93 LTS
0
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1answer
123 views

Choose to display one item in collection with geometry nodes

I have a simple collection with meshes named 1-3. How can I create a geometry node graph such that I can animate the selection between these meshes? In other words, how can I display meshes 1-3 like a ...
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0answers
53 views

Need help with leaf positioning in Phyllotaxis Spiral

need help with rotation of leaves. my geometric nodes are what should i do to rotate the leaves?
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1answer
463 views

Geometry nodes How to fill the object with particles?

How can I fill the object with some points in geometry nodes? Point distribute node place dots on the surface, but I need them to be inside the object randomly
6
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1answer
230 views

Flip Normals with Geometry Nodes

I have geometry being created through geometry nodes and I am am trying to flip the normals on this duplicate geometry. However, it appears that normals are a read only attribute in the geometry nodes....
3
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1answer
176 views

Geometry Nodes - Incremental increases & controls

I found this youtube clip which shows exactly what I'm trying to do. At about the 10 second mark of the linked video, he shows controls working as integers. That in a nutshell is what I want to do. I'...
0
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1answer
186 views

How can I align my points/models rotation along the model surface

I'm using geometry nodes, and trying to align my instance geometry around a sphere, however my geometry is not rotating along the surface of the sphere. The geometry is sticking straight up. I know I ...
4
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2answers
187 views

How can I use nodes to make a Genshin-like grass material?

I have tried to make grass just like in Genshin, but it is still not like how I want it in EEVEE. Game Screenshot My Grass
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0answers
80 views

Is there a way to create a dual mesh using geometry nodes?

I'm trying to create a dual mesh, as described by Alessandro Zomparelly, but procedurally using Geometry Nodes. I've only come this far, but now I need to dissolve the vertices of the original mesh, ...
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0answers
253 views

How to fill an object with curve/splines using Geometry Nodes?

Such effects are possible by using Extra curves addon (Add > Curve > Knots > Bounce Spline] and by animation nodes add-on (As explained in this tutorial: https://www.youtube.com/watch?v=...
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2answers
267 views

Scaling along normals in Geometry Nodes

I'm trying to use geometry nodes to scale up a duplicate mesh along each faces' normal to "thicken" up the mesh. This can be achieved manually by scaling a mesh with Alt+S (Scale along face ...
2
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1answer
229 views

Help: cannot find vertex_normal as attribute in 2.93 beta

I am following this tutorial on geometry nodes https://www.youtube.com/watch?v=DQVYieRfQBY&t=12s which is using 2.93 Apha. I couldn't find the alpha so I downloaded the beta. My issue is that at 3:...
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1answer
39 views

Geometry node booleon material [duplicate]

Hi any idea to insert color from other booleon object in geometry node.
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2answers
279 views

How to draw Inputs from Geometry nodes modifier in a panel

I am trying to draw the inputs of the Geometry Nodes modifier to a panel, and I tried doing this ...
1
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1answer
79 views

How to instance geometry rather than Objects? [duplicate]

I'm trying to reverse engineer the awesome setup of Felipe del Rio here. I got as far as setting up an XY array with geometry nodes that instances objects using Line primitives. I want to repeat the ...
0
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1answer
153 views

Geometry Nodes - How to assign vertex group in geometry nodes?

I added a plane. Instanced objects on it. Assigned vertex group on it. (I'm stuck at this step) How do I make it look exactly like this by using Geometry Nodes?
3
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1answer
729 views

Geometry Nodes sample texture attribute and materials

Using Blender 2.93 Geometry Nodes; I have a sample texture attribute used for scaling multiple point instances. Is there a way to use this "scale" to control the material color(s) on these ...
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2answers
733 views

How to distribute points along a single edge with geometry nodes

I have a mesh with a single edge/two vertices, which I've added a point instance geometry node instancing the "circle" mesh. What's the most practical way to change the amount of circles ...
0
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1answer
86 views

Geometry Nodes - How to procedurally subtract the unwanted part of a mesh after applying it with particles?

This is how everything looks at the moment This is what I expect the result to look like (partially instanced particles, partially original mesh) The nodes setup
1
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1answer
205 views

Is Volume distribution for Geometry Nodes available at the moment?

If it is, how can I achieve the effect?
2
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0answers
35 views

Exclude one point distribution from another [duplicate]

I'm an absolute newbie at Blender and 3d, and I'm trying to build a scene using geometry nodes. My problem is that this grass intersects the trees. Is it possible to mix point distribution nodes to ...