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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Vector output from instance on points

I need some help with the following problem. I want to create a rope between two points. This works perfect when I use two objects. I want a static end point (Empty) and a point on a mesh as start ...
Dave77's user avatar
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5 votes
2 answers
3k views

Array Modifier that creates Instances instead of duplicates

Let me know if I'm incorrect here. When I press Alt–D I create an instance of an object. My triangle count don't change though. When I press Shift–D I create a duplicate of an object. Triangle count ...
Matthew's user avatar
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3 votes
1 answer
1k views

Masking out Overlapping Instances in Geometry Nodes

I am an experienced Blender user but very beginner in Geometry Nodes. I have an object onto which I am instancing small water droplets, using geo nodes. Maybe it is completely wrong but, to have more ...
pschinzel's user avatar
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2 votes
1 answer
1k views

Is there a "switch" to disable viewport geometry node instances (to reduce lagging in viewport)?

Just looking for a toggle that would disable geo-nodes instances easily. I appreciate I can do this manually in the outliner but this would also kill the base geometry in the view. I would just like ...
Starfury359's user avatar
1 vote
0 answers
49 views

Modify instance parameter before the instance on points node, based on the position

I'm trying to make a grass field, and make flowers bloom when a 'sun' approaches the ground. I have already solved the problem of making the grass taller and increasing the flower size, but I would ...
Francesco Bragagnolo's user avatar
10 votes
1 answer
2k views

Geometry Nodes instance scale based on distance from other instances (Circle Packing)

On the left is a standard instance on points, on the right a sketch of what I want to achieve, where the instances scale based on their distance to the closest other instance. How can I achieve ...
torels's user avatar
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2 votes
1 answer
29 views

Arrayed Curved Face Object Instancing Bug

I was studying some tank treads when I came across a bug with instancing the treads via a proxy plane, but when I array enough to get the curved portion of the nurbs path, the instanced treads show an ...
irlam's user avatar
  • 75
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1 answer
423 views

How do I make each instance have a random seed for a procedural building [duplicate]

I've designed a procedural building but I can't distribute them on instances with each of them having a random seed.
Hank The Tank's user avatar
1 vote
1 answer
539 views

How would I join two rotation vectors in geometry nodes?

I've been stuck on this for quite a while now, I'm trying to combine Rotation 1 with Rotation 2 and it's been doing my head in. I'm trying to instance 5 or so objects and rotate them away from select ...
Eden Gibson's user avatar
0 votes
1 answer
2k views

Blender Geonodes Fields 3.01 Get position of instance?

My question is how do I capture the position data of an instance using fields? I've tried following the advice in this thread as it has the same title as my question but it doesn't really answer the ...
special_frog's user avatar
1 vote
2 answers
1k views

Point Translate Node effect in 3.0

in a previous version of Blender I used an Array Modifier + Curve Modifier + Point Translate Node in Geometry Nodes to create a 'particles follow path' effect like this one: To animate the instances ...
Bejuco's user avatar
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3 votes
1 answer
422 views

Stepping on Grass (displacing/rotating grass by object in geometry nodes)?

I would like to have Grass be "flattened" by an Object by using Geometry Nodes. So when a foot steps on the grass, it will be rotated aside. I managed to make the grass face the Object but ...
Niko's user avatar
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1 answer
170 views

instancing an distributing points in geometry nodes. The mesh I'm instancing on shows up in viewport, but not final render. Is my join geometry wrong?

I am trying to distribute a sesame seed mesh on a bun. I can get my instance to show, and my original mesh I'm distributing the instance on shows in the viewport after the join geometry node is added. ...
Chris V's user avatar
5 votes
3 answers
2k views

Why won't Curve Parameter scale my instances?

I am trying to make (simplified example) the following: A curve with icospheres along its length where the radius and distance between icospheres is proportional to the distance from the start-point ...
j6m8's user avatar
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0 answers
578 views

How to move collection without moving the instances?

I want to move the collection without affecting all the instances since I would have to rearrange the scene. Is there a way to do this?
user123511's user avatar
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8 votes
2 answers
3k views

In Blender 3.0, how can we control instance properties (scale, etc.) by proximity?

I've been looking at tutorials and various node tree screenshots, but since the 3.0 release many aspects of Geometry Nodes have changed, making those sources largely irrelevant. In 3.0, how can we use ...
Mentalist's user avatar
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1 vote
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374 views

How to make slime with procedural bubbles using Geometry Nodes?

I've just installed Blender 3.0 and it has renewed my curiosity for Geometry Nodes. I was thinking of what might be a fun use for Geom Nodes and the idea oozed into my head: SLIME! Because slime has ...
Mentalist's user avatar
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4 votes
2 answers
1k views

Geometry Nodes - Selections from A Variety of Collections Based on XYZ Index values

I'm trying to understand Geometry Nodes in 3.0 by doing my own modular generator where instances are being generated from a simple base mesh object (see image above) that is then put through a Remesh ...
Jay C. Besch's user avatar
2 votes
1 answer
386 views

InstanceOnPoints: how to parametrize the instances depending on the points (Blender 3.0)

in the example below, the Strings should show any specific value of the curve points. For example the index+1 esp. the hours of a clock, or any other attribute. How can I grab values from the curve ...
leol's user avatar
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1 vote
1 answer
192 views

Can't get tree branches perpendicular to trunk with geometry nodes

I am using geometry nodes to build this tree. The problem is that the tree branches sprout vertical and parallel to the trunk. These are the random points that I have on the trunk via geometry nodes. ...
ChristianOConnor's user avatar
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0 answers
46 views

Problem with ShrinkWrapping

hey quick question why is it that when i use shrinkwrap (or use any Deform Modifier) on instanced object the number of overall geometry doubles ? I use Blender 3.0 Here is a blend file btw thx ...
Loko's user avatar
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2 votes
1 answer
587 views

Apply Modifiers on Instanced Objects?

Is there a way to do this? For example, adding a subdivision modifier on the default cube then Alt+D to instance it. Going back to the first object, I'm unable to apply the modifiers. I know that ...
Wonkey's user avatar
  • 248
1 vote
2 answers
2k views

How to instantiate objects on individual/selected points in geometry nodes?

Let's say I have a simple Mesh Line and use the Instance on Points node to make an instance of a given object on every point of the line. How can I decide for each individual point if it should have ...
KevinR's user avatar
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1 vote
1 answer
3k views

Instances on Specific Points

Currently in Geometry Nodes, the Instance on Points mode maps instances to points uniformly throughout an object (by vertices or samples). Is it possible to specify ...
Dr. Pontchartrain's user avatar
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1 answer
198 views

Instancing Vertices Light sources

So I'm trying to rotate a bunch of lights around a large circle using using the instancing vertices, so each lamp is on a vertex But when I rotate the circle, the lights rotate around the "top&...
Will's user avatar
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1 vote
1 answer
218 views

v3.0 python api for setting the scale of InstanceOnPoints

I'm relatively new to blender and scripting in blender so I am missing some basic concepts. I'm working with Blender 3.0. I'm trying to import some position and radius information for many particles (~...
Bryan VanSaders's user avatar
1 vote
2 answers
775 views

Transfer rotation attributes from one instance to another

I'm using instances from a collection to generate points on which I will place other objects (instances). I want that these new instances have the same orientation as the original instances. I tried ...
Vic Marco's user avatar
  • 291
2 votes
1 answer
1k views

When using the Collection Info node, is there a way to transfer geo node attributes from instanced objects and use it?

So I made a simple geometry node tree to create a tile with a hole. You can control the size of the hole (X and Y) from within modifier properties panel. Then I made a another geo tree that instances ...
Vic Marco's user avatar
  • 291
0 votes
1 answer
954 views

GN deleting instances based on selection or propagating iinstance scale to new points

Is there a way currently in geometry nodes (b3.0) to delete instances in the graph or to propagate the instance scale to new points so I can remove the instances as a points and re -instance them with ...
m00k's user avatar
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4 votes
1 answer
12k views

Can't find point instance

I'm following a tutorial (4:57 time stamp) where the person gets point instances and in Blender 3.0 its gone. How do I get the same effect in Blender 3.0 now that it has changed completely?
PapaNelis's user avatar
2 votes
1 answer
752 views

Is there a way to transfer an attribute value from a point to the instance (or the "realized" vertices of the instance)?

I have a curve with control points on which I'm going to instance spheres that are going to have shifting scale values (that is done) and hopefully shifting materials (and here I struggle). So I ...
Vic Marco's user avatar
  • 291
3 votes
1 answer
935 views

Random Material for Each Instance - Geometry Nodes - Blender 3.0.0 - Fields Workflow

I can't figure out how to assign a different material to each instance in the new Blender 3.0 fields workflow. Is it broken? I don't mean using a color ramp, I mean having actual different materials ...
Fred Sprinkle's user avatar
1 vote
2 answers
2k views

Blender 3.0 Geometry nodes - How to replace a selected instance from a collection with a different object?

Let's say I have a collection named Collection original and inside of it two cubes and two spheres. Then in a separate collection I have a monkey and another object with geometry nodes. Within the ...
Dalibor-P's user avatar
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3 votes
1 answer
186 views

How to convert a random color ramp material to a simple material for lots of object instances

I have used Object Info,random output and colorRamp to randomly asign colours to a few hundred different object instances (for example roof tiles, wooden elements, rocks and grass), which works great ...
Nick Nemer's user avatar
1 vote
1 answer
1k views

Set material for instances problem (Blender 3.0)

I have a set of geometries that they're generated by "Instance on points" Now i need to set a Color Ramp attribute for these geos to set a rainbow like material to these geos In fact, i need ...
milad shirali's user avatar
1 vote
1 answer
445 views

Selecting vertices in certain vertex group or certain weight

I am using blender 3.0.0 Beta I have a plane with many vertices and want to raise one of the vertices higher than others using geometry nodes. I have two approaches : 1- vertex groups 2- weighted ...
Spongebob Comrade's user avatar
2 votes
1 answer
4k views

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
  • 449
2 votes
1 answer
340 views

Instance to Collection, Unhiding Objects

So I'm trying to mirror Collections, and the easiest and fastest way I found is just to make an Instance of that collection and -1 the scale. It works fine the only problem is that the objects inside ...
Martin Faragasso's user avatar
1 vote
1 answer
47 views

Where are the mesh instances used?

I don't understand where my other mesh instance is used, I want to have only one instance. When I click at the number of users (2), I get a single user mesh; but the other mesh still remains even ...
Copy's user avatar
  • 23
0 votes
2 answers
147 views

Why can't I unlink the copies in Blender 2.9?

I duplicated linked object multiple times (Alt+D) And now I can not get rid of the link for some copies. I tried: Apply - Make instances real, Make local - All (I tried all the parameters in Make ...
3DBear's user avatar
  • 713
0 votes
0 answers
184 views

How to apply bone constraints and object constraints to the instances of my object?

Context I am using the CarRigPro addon in which I can chose the object that the car suspensions are simulated on. For that, I add my object (Ground) as the target for both a bone constraint, and an ...
Monstar's user avatar
  • 361
0 votes
0 answers
59 views

Can Geometry Node Point Instances be exported as animation in FBX?

Just wondering how to export Geometry node Point Instances that are animated.I have tried exporting as FBX and the instances don't show up.Can anybody please help me on this one?
mitewad's user avatar
0 votes
0 answers
90 views

How do I instance a small object evenly along a complicated shape?

I made this mathematical mesh and I'd like to add 10 regularly spaced small spheres along each of its curves spiraling out from the center, like the highlighted one. The problem is that the vertices ...
bloxy's user avatar
  • 1
4 votes
1 answer
1k 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 ...
Andy Frederik's user avatar
0 votes
1 answer
856 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
2k 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
1 answer
189 views

Making particle system single user?

When i duplicate a particle system or the object containing the particle system, blender seems to only instance it. I tried to make it a single user by selecting Object>Relations>Make Single ...
clawjelly's user avatar
  • 105
2 votes
1 answer
109 views

How to make hair rotating in the same direction

I the topic isn't really accurate let me explain. You can see on the screen shot all my bees are a particle system based on hair and I wonder if there is a way to make all the bees rotate on their Z ...
IamBoubou's user avatar
0 votes
2 answers
2k views

How to export an animation that uses a curve modifier?

This is my animation of a shotgun ammo belt. It uses a set of placeholder Plane meshes along a Bezier curve that instance my shell model. By moving the planes across the z axis, the shells feed into ...
Jackson's user avatar
0 votes
0 answers
33 views

How to make object from collection [duplicate]

How I can transform objects in collection to single object? I dont want still to use select objects in collection to move with all things inside. Is there any simplier way? I know about instances ...
Samuel24's user avatar

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