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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
287 views

Need help with geometry nodes instance textures not showing when going into rendered view

I have an object, with point distribute on it, geometry nodes. The points are instancing another object, with a transparent texture. (I used Transparent BSDF), when in the 'viewport shading' view, I ...
2
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1answer
112 views

Geometry Nodes: How can I align points/instances to normals without local rotation?

The lower torus is using a hair emitter and displays exactly what I'm going for: each instance edge is parallel to the next. The upper torus is using geo nodes and each instance has a local rotation. ...
4
votes
1answer
293 views

How can I see the output of geometry nodes?

I need a node like the "view" node in the Animation nodes. This is for debugging purpose. If I added two values or used the sin function and I want to check the results are correct or not, ...
4
votes
1answer
165 views

How to create instances in the centers of faces or edges, instead of on verts? [duplicate]

This is what the Point Instance node creates by default: Is there a way to create the points in the centers of the faces? Or in the center of edges?
4
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2answers
170 views

How do I build instances on a grid with Geo Nodes?

I am using geometry nodes to make a grid of icons. I have instanced the icon object over a Grid node. How can I make the instances of the icon appear as if the grid is building from the bottom left to ...
1
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1answer
14 views
2
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1answer
68 views

Creating new geometry per frame

I have a node group that calculates a Trefoil knot segment based on the current frame, and I am instantiating points at the ends of this segment in each frame. This works fine. However, in the ...
3
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1answer
47 views

Geomtry Nodes: point instance texturing

I created a cube with a basic texture on it (first picture). Then, using Geomtry Nodes I created a grid and instanced the cube on the the vertices of the grid, so at the end I have the kind of ...
2
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1answer
279 views

Geometry node: point instance from nodes [duplicate]

I'd like to do a Geometry node (I'm using Blender 2.93) that distributes some cones on the surface of a shape. For now, I need to create a new shape just for the cone, and then use ...
0
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0answers
34 views

How to change a Geometry Node field value using a Python Script

I would like to read and change a value in the Geometry Node editor using a python script. If for example I want to change the Density in the PointDistribution node, how would this be doing using a ...
0
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1answer
33 views

How to get randomized positions in certain area with geometry nodes? [closed]

i have a problem, with the node setup in Picture 2 I was able to get the fading hexagons around the controling empty in Picture 3. The grid in inside I get with the node setup in Picture 1. Now I try ...
6
votes
1answer
373 views

How do i randomly rotate point instances with either 90, 180, 270 or 360 degrees?

How do i randomly rotate point instances with either 90, 180, 270 or 360 degrees? When using attribute randomize, and choosing rotation as the attribute, I cannot ...
1
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1answer
215 views

Geometry nodes, randomizing the height on the Z axis for distributed points

I have a plane, subdivided, and point instance from a collection. How do I make every instance on a random height (z-axis) from a minimum and a maximum value?
0
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1answer
66 views

How to use collection of armatures with children meshes in particle system or Geometry Node Instancing?

I'm having a little problem right there: I have 5 different rigged zombies with different animations, so in the outliner they're armatures with a child mesh of the zombies: What I want to do is ...
1
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1answer
52 views

Odd geometry nodes (normal) behavior using Align Rotation to Vector node

Using v2.93.1. I am aiming to apply a collection of hull plates to a cylinder using geometry nodes. I am almost there, but something is wrong with 1 of the tiles alignment - which is presumably due to ...
1
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0answers
35 views

Geometry node model becomes white after converting it to mesh

I was trying to get the procedural building demo of geometry nodes to convert into mesh so that I can export it as a fbx for my game but when I apply the geometry node it becomes white Here's a video ...
3
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2answers
223 views

Array modifier with empty: is there a way to get "constant" scaling?

I have a circle. I add an array modifier with object offset to an empty. I scale the empty and i get: Is there a way to get constant distances of the circles? or adding a constant to the radius? I am ...
2
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1answer
67 views

Creating a polar chart / polar grid

Is there a way to create a polar grid / polar chart in Blender 2.93.1? I know I can create a circle and do several insets then draw the lines. I was wondering if there was a better way that can make ...
0
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1answer
47 views

Geometry Nodes Snap Object to Ground

Is there a way to snap objects to the ground with geometry nodes. I mean along z vector to chosen object based on the original instanced object's origin. I am trying to stay within a stable blender ...
1
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0answers
38 views

How to use "Point Separate" without losing edges?

When I use "Point Separate" on an object, the edges disappear: Is there a way I can use the Mask function of the Point Separate node without losing the edges in the mesh?
4
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2answers
165 views

How to rotate my points so that they point outside like windows on a building?

Is it possible with geometry nodes and a grid node with some "clever" math so that the outer "boxes" rotates to "outside"? Or easier: i have this: and of course i want ...
1
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1answer
29 views

Geometry node only distributed on specific area

Im trying to create a globe with some spheres coming out of it ( geometry node ) but I only want them to appear on land and not on the ocean. Any ideas on how to only distribute the point in the ...
2
votes
1answer
101 views

Instance random rotation not working for Single Vertex in geometry node

I have this array of single Vertex ( generated by array modifier ). And I want every vertex to have a slightly different scale of this cube. So I set up the geometry node like this: But I didn't get ...
0
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0answers
12 views

What type of value does Blender use for the Point Rotate Node when set to Attribute? [duplicate]

I really dont understand what value type Blender uses for this node. I have tried many diferenr values but dont understand. The nodes I am usign: The rotation when the value is 1: The rotation when ...
2
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2answers
80 views

How to animate VertexWeightProximity effect with Remesh modifier active

What I'm trying to do in blender 2.93.1: Animate a VertexWeightProximity effect (geometry nodes distributed/instanced cubes on mesh going away as empty gets near) while also animating the main mesh ...
2
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1answer
78 views

How to tell Geometry Node to place one object next to another dynamically?

I come from a game development background and am not quite sure if this is the right way of thinking in Blender, but let's assume that i have the following tasks: Create a tool that will generate ...
2
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1answer
166 views

Create a Vector with a Value Node as each value

In Geometry Nodes I want to create a Vector Node but with each value being driven by a separate Value Node. Like this: Thanks!
1
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0answers
63 views

Node lines are not visible even if connected

I am learning about Geometry nodes and shader editor but when i connect nodes to add textures it gets non-visible soon after getting connected. This thing may confuse me if there are many multi ...
1
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0answers
66 views

Remesh spheres in geometry nodes?

How can i remesh spheres to look like metaballs without destroying my wireframe object? Im trying to make this animation but metaballs are broken and wont render with geometry nodes.
1
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0answers
43 views

How to connect 2 geometry node using python script? [duplicate]

I want to connect 2 geometry node using python script. I'm currently capable to create geometry node using node_groups['Geometry Nodes'].nodes.new() but Still unable to connect 2 node. Can anyone help?...
1
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1answer
149 views

Geometry Nodes Collisons

I have a model that's made up of geometry nodes. They're intersecting. I want them to collide. What do I need to add to the node tree to make them collide? I tried following this, but I don't see a ...
0
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0answers
28 views

duplicate a collection onto vertex group

I am so struggling on a duplication issue. I want to duplicate a collection into some certain position, which is already define as vertex-group as shown below. I try to use geometry node to achieve ...
4
votes
1answer
249 views

Does anyone know why my animation renders in Eevee get kinda transparent in certain frames?

I'm using geometry nodes to make a building and I've tried animating the number of floors the building has. Every frame where a new floor is introduced, the building looks really weird and in the next ...
0
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1answer
88 views

Disappearing Geometry with Geometry Nodes? [closed]

Following this tutorial What should happen is, it should create a Thanos snap cease to exist effect. To me, my node setup looks exactly like his, but my geometry is just gone after adding a point ...
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0answers
63 views

Geometry Nodes - Color Value as Float

First, I'd like to provide some context. I have a low resolution 3d map. I made this map by subdividing a hexagon and applying a Displace modifier to it. A little color-ramp magic in the shader, ...
1
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1answer
104 views

Combining geometry node attributes to define density?

I'm distributing trees on a hilly terrain using geometry nodes. I've got two different node setups that each create an attribute to define the density of the Point Distribute node. Each of the two ...
1
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0answers
59 views

Access other verticies' data using Geometry Nodes

I have a bit uncommon question . Let's say I have a simple plane (with 4 vertices) . I have added a XYZ Attribute separate node, which takes the "position" vector as input and splits it to ...
2
votes
1answer
136 views

Geo Nodes: If Render Then Statement

I am working with geometry nodes in blender 2.93. I want different point distribute density depending on if the geo nodes are being used in the viewport preview or render. This is what I have so far: ...
0
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0answers
78 views

In geometry nodes, how to assign vertices of mesh primitives to a vertex group?

On default cube, add a new vertex group, call it Group, leave it empty. On default cube, add geometry nodes modifier and bevel modifier. Make bevel modifier use the vertex group. In geometry nodes ...
2
votes
2answers
49 views

Edit keyframes on geometry nodes

I set keyframes on the min and max value of an "Attribute Randomize" node. Now I want to move those keyframes but I don't see them in either of the keyframe editing modes (Dop Sheet, ...
4
votes
1answer
405 views

Geometry Nodes and Duplicating Premade/Procedural Geometry [duplicate]

I'm trying to make a procedural building from scratch despite being a bit of a rookie. I have a messy node set up where I have a value node that does math to calculate the correct amount of "wall&...
0
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0answers
94 views

With Geometry Nodes is there any way to aling the Pivot Point of a instanced objects with the Geometry Nodes point

What I want is to the instanced object's Pivot Point to align with the Geometry Nodes point with is instancing it. The objects Pivot Point: This is what it gives me: And this is what I want: My ...
2
votes
1answer
131 views

Min/max values of attribute in geometry nodes

Is there a way to find the minimum and maximum values of a particular geometry node attribute? As an example, let's say I have a bunch of points which have had a number of manipulations performed on ...
0
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1answer
99 views

Geometry Nodes: Is there any way to move the X, Y, and Y separately with attributes in the Point Translate node

👋 Hello. How could I drive each of the X, Y, and Z axis of the Point Translate node with an attribute that I created in a previous node (you can see it in the included image). I am using Blender 3.0....
1
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0answers
21 views

Atribute sample texture , where to find the keyframes animated on the texture properties

I'm using atribute sample texture and trying to animate the points by keyframing the size and brightness of a clouds texture . I managed to insert keyframes and I can see it's animating, but then if I ...
2
votes
2answers
65 views

Change colour based on z height

I am using geometry nodes to move cylinders on the z location based on the proximity of an empty. I wanted to use the attribute dist in a material to change the ...
0
votes
1answer
63 views

Transform Mesh from Vertex Groups with Geometry Nodes

How I can rotate the selected geometry 90º using geometry Nodes? I created a vertex group with the selection above named "Group" but I cant figure how to transform / rotate the mesh only ...
5
votes
1answer
175 views

Is it possible to distribute points along the glancing angles of a mesh - with geometry nodes?

I'm trying to break up the silhouette of an object, but keep the part of the mesh that faces camera clear. Wondering if there is a way to drive point distribution with a fresnel shader similar to ...
1
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0answers
59 views

How to orient a point to the next one with geometry node? (Curve follow)

I'm working on a vines field and I want to use geometry node to instanced a collection of vine trees following a curve. I'm using Blender 2.93 so I converted my bezier spline to a mesh and used it ...
1
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0answers
12 views

How do I convert a geometry group input node input to an integer [duplicate]

I am currently following a tutorial on how to make procedural buildings with the new geometry nodes and the YouTuber that I am watching has a integer input when he uses the slider but mines a float