Questions tagged [instances]

Questions related to instancing. Instancing is used to duplicate many objects that are the same. Uses such as particles, Dupliverts.

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Gradient material for each instance (Geometry Nodes)

I'm having trouble figuring out how to assign a gradient material for each instance in geometry nodes? I have this recursive setup of circles where I want to assign a gradient material that faces the ...
1 vote
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Randomizing via color ramp collection linked meshes with same material

I downloaded a container from blender swap. The container is made of various parts with different modifiers and so on. I am using collection instances to replicate the container, but I would like to ...
1 vote
1 answer
22 views

Replacing duplicate meshes with instances

I've been working on a large city in CityEngine, and I've imported the roads into blender. The roads have street lamps along them, however they are part of the road mesh and not their own object; ...
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simultaneous rendering from cameras in geonode instances?

Is there a way to access each camera instanced on a geometry node and render from each of them? I created a geometry node shape and was able to instance cameras on it, but I am unable to neither ...
4 votes
1 answer
136 views

How can I instantiate a procedural node group with different parameters?

Suppose I have a beautiful node group that procedurally generates a plant (or building or whatever) for me: PS: This plant is available here: Staggered palm frond leaves with Geometry Nodes? Now I ...
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1 vote
1 answer
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Scale invariance for geometry nodes instances

Whenever I use the Instance on Points node to create instances of an object on a surface I find that the instances will change size and distort when I change the size of the object that I apply the ...
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1 answer
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Why are my instances offset from their spawn point? [duplicate]

hoping you can help shed some light on this issue. Im using geometry nodes to instance a collection of objects on a plane. But the instances are all offset from the plane, rather than spawning from ...
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Pulling selected object name from Instance on Points node with python

In the attached picture you can see that the object "Suzanne" from the collection "Objects" was chosen to be instanced by the integer value input. I would like to use that data, ...
2 votes
1 answer
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Size of the instances depends on their position

I need to make some changes to this leaf generator. The size of the leaves should vary depending on the height. This means that the upper leafs should be smaller than the lower ones. (Blender v 3.2.1)...
3 votes
1 answer
170 views

How to align an object along a spiral without distortion?

Goal: I am trying to create a helix made of stacks of an object. How I tried to do it: I created an Archimedian Spiral with the desired dimenisons Since the object itself always is distorted when I ...
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2 votes
1 answer
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How can I create an animation of many ants spawning from a central point and fanning outward?

I have a single animation of an ant walking across a plane and I'd like to use that as the base for a larger animation with hundreds of them spawning from a central point and walking outward in ...
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2 votes
2 answers
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Object instance on single point using vertex group. Blender 3.2.2

I'm a complete noob with blender and just started learning geo nodes. I'm following this tutorial https://www.youtube.com/watch?v=GHGokQoqVb8&t=421s and I know it's for an old version of Blender ...
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Cycles makes weird stripes artifacts when Volume is instanced

I wanted to make a smoke trail like in this video So basically I made a Particle System and chose as the particle Object a Volume cloud. In the Render Viewport Everything looks nice, but if I render ...
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3 votes
1 answer
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Confused about Linked Duplicates

Could someone enlighten me as to the difference between 'Relations>Make Single User' and 'Apply>Make Instances Real'? I think I'm super confused!
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1 vote
1 answer
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Procedural vine, direction of leaves, problem with detached branches

I create a procedural vine (or bean). But I have several problems with "leaves", "branches" and endpoints Turn the leaves in the opposite direction from the branch (in the ...
1 vote
1 answer
78 views

How to offset objects in relation to the curve using geometry nodes?

I have a simple geometry node that places spheres along a curve. I don't know much about geo nodes, but I'd like to know how to modify it so that I can set the offset of the sphere in relation to the ...
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1 vote
1 answer
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Multiply blend an overall object material over instance materials on one Geometry Nodes object

I'm working on a brick wall that has battle damage done by a fire and/or explosion. I've made the brick wall using Geometry Nodes and each brick is an instance. I have a brick material for each ...
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2 votes
1 answer
224 views

How to align instances to mesh normals ? (mesh created from a curve and a profil)

I read a lot of posts about this but I couldn't find an answer for this case. I'm trying to create a vine with spikes. Its growth is controlled by an empty and a trim curve node. I distributed points ...
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3 votes
1 answer
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Spawning Dominoes and keeping their rotations with Geometry Nodes

Creating Domino runs with Geometry nodes -> then I Convert -> Mesh, Separate by Loose Parts, Set Origin to Center and Apply Rigid Body Physics. The origin rotation values are lost in the process,...
1 vote
1 answer
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Is there way to make an array modifier match another object?

Im trying to array a light fixture so that it shows up on the column of this wall. The wall has an array modifier, is there a way to set up the array modifier for the light fixture so that it shows up ...
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How to link object data whilst keeping the location and rotation of all objects

I have a pretty hefty frame structure that I need to optimise. This was created by arraying a single smaller section of the frame along a curve, then arraying the result 32 times around an empty. ...
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23 views

Convert instance to real object but keep animation?

Here I have a door for a train that is animated. All the necessary components are in the collection "door". https://youtu.be/wBntyc7RJTo The collection "door" has been instanced (...
1 vote
1 answer
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Right angle corners issue with Instances that follow Tangent Curve for Brick Wall with Geo Nodes

I've created a brick wall using Geo Nodes, with instances from separate brick object. I've also used proximity to remove a portion of the wall for damage. Unfortunately the corners come out rounded ...
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1 vote
1 answer
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Geometry nodes, How to offset points on face along normal direction by random value?

Im trying to scatter Swords along of a giant monster and i had a rather good first time working with geometry nodes. My question is: How do i offset the different points on my mesh that where ...
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How do I instance an object while keeping the parent after I apply child? relationship

So what I did was to array a chain on a cloth using instances to simulate the cloth. But what I want to do after that is to turn it into into a rigid body with each link having child parent ...
1 vote
1 answer
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How to string objects of a collection along an axis depending on their size, applying random rotation and scaling without overlapping?

Sorry for the long title, but I had to elaborate somehow, because the question is now a bit broader. Basically, it's about instantiating objects of a collection along a line. This question has also ...
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1 vote
1 answer
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How to replicate the same material in every instance after realize instances node? [SOLVED]

I have one of those problems where a solution seems to be right in front of you, but you can't reach it. I have a grid o x number of instances, and I want my material to be replicated in these ...
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0 votes
1 answer
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How do I set a very SPECIFIC number of instances to distribute within a randomized selection of points?

I'm pulling 1 object at a time from a small collection to instance onto points in a scene. And I want those to arrange themselves randomly on the grid points as shown in the image. That's easy enough. ...
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How to plug back instance index to the instance generator [duplicate]

I can't find a solution on how to randomize the instance's parameters per instance. Please note, this question is theoretical, I'm not looking for a solution for this individual problem on the ...
1 vote
1 answer
109 views

Geometry Nodes - Hexagonal grid on existing geometry

I am working on a fan design of the TARDIS Console room from Doctor Who, and intend to use geometry nodes to generate the roundels that can be seen on the walls. My plan is to do this by subdividing ...
0 votes
1 answer
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Random color in collection instances

I have a collection of cubes with a random color. How can I make the cubes in the collection instances have the same color as in the main collection, and not change randomly?
0 votes
2 answers
73 views

Position instances of different dimensions side by side

I'm trying to position the instances based on where the neighbor instance is respecting its boundaries. If all instances in the collection had the same dimensions i could simply multiply the count of ...
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Instance meshes with correct loc, rot, scale

I have a huge LEGO model with more than 10.000 meshes, i need to use the bevel modifier for nice edges but when i do my graphics card runs out of memory when rendering. I wan't to instance every brick ...
1 vote
1 answer
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Rotate instanced curve vector to point away from original curve

I am utilising aspects of the following tutorial in a project but am deviating from the tutorial: https://www.youtube.com/watch?v=T__5FyCHL4E&t=1273s&ab_channel=MaxEdge So I am instancing a ...
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Trying to duplicate instance effects of a distributed plane on an emitted plane

I've set up a little example blend with two planes, the middle green plane has points distributed on faces for the yellow cube on the left to be instanced on. The right violet plane has old particle ...
0 votes
1 answer
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how to keep materials when use realize instances - Geometry Nodes

I created the geometry node according to the images below, the object I'm using in the node is this "lamp" with random color between red and white. But when I use the Realize Geometry node ...
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How do I parent the Contents of a collection as well as the Instance collection of the same collection(flipped) to an Armature empty

I have the contents of a collection parented to an armature, I have also made an instance of the same collection flipped it on the X axis and parented that collection to the same armature bone. The ...
1 vote
1 answer
33 views

Blender Geometry Nodes Instances only partially

how can i make the instances with Geometry Nodes only partially in Rings like on the Plant in the Picture? Thank you very much!
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1 vote
1 answer
63 views

Geometry Nodes: How to align instances to rotation of base plane's normals?

I'm trying to make a simple city generator and one problem I'm facing is that I want the point instances to inherit the Z rotation of the base mesh that they are spawning from. Ideally I want to ...
4 votes
4 answers
267 views

Coral reef - How to blend scattered instances

I'm trying to recreate the surface of a coral reef, and I would like to experiment a little with geometry nodes. My result so far, I just do a Distribute points on face, and Instance on points. My ...
3 votes
1 answer
113 views

GN: How to pass bounding box mapping to each realized instance?

In Geometry Nodes I have an instanced object with its material appearing correctly until I drop a Realize Instances node into the tree. What breaks is the mapping. It's my understanding that support ...
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1 vote
0 answers
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Make instances converge in geometry nodes

I'm working on a Draw Pencil tool to draw locks of hair using Geometry Nodes. Each strand is an instance juxtaposed along a Mesh Line with some degrees of randomization. What I can't seem to figure ...
3 votes
1 answer
96 views

How to use CSV data to color 1 million voxels staked in a Rubik's Cube like model?

The cube is composed of 1 million voxels (100x100x100) having the same size (1 unit). Voxel information is saved in this .txt file having the format: (4 columns x 1 million lines). The first 3 columns ...
1 vote
1 answer
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Geo Nodes: How to calculate tangent of mesh

I want to align instances along a displaced mesh. The problem is that the (red) instances always point in the same direction no matter where they are positioned. The instances should be aligned to the ...
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1 vote
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Geometry Nodes: Instance per edge and orient/scale instances to edge length [duplicate]

I am trying to have one instance per edge, and have that instance stretch from each point on the edges. I've almost got it working via Transfer Attribute, but it's not able to pull exact distances, as ...
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3 votes
1 answer
135 views

How to duplicate a collection of meshes along a drawn curve?

I have a collection of different objects (for the sake of this example lets say a sphere, cone, and cube) as separate objects in the same collection named "primitives". I want to be able to ...
1 vote
0 answers
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How can I transfer instance UV after realising in geometry nodes without applying the modifier? [closed]

I need to export an Geo nodes animation as alembic file without loosing the UV maps of the instances to use the animation in Unreal Engine 5?
3 votes
1 answer
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GN: Can we do backface culling for points/instances?

With Geometry Nodes, is it possible to create a backface culling type effect for instancing faces? That is, prevent faces the camera will never see from populating with instances? Really the question ...
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0 votes
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Rigging instances of a character

I have a rigged character that I want to duplicate many times using geometry nodes, but with different postures. Can I apply random rigging using Blender geometry nodes ?
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How can I duplicate a collection of models childed to an empty, and still toggle the visibility of individual models?

There's a bit more to my question than I could explain in the title. For each instance of the empty, I need the models to appear in the same position relative to the empty. Also, if I move or rotate a ...
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