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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14 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 ...
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2answers
27 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 ...
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15 views

Instancing GPU batches

Using an example found on internet, I am drawing a simple cube using GPU. How can I draw hundreds of such instances, with different positions / rotations / scales ? ...
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21 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 ...
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23 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?
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How can I rotate/displace instanced objects with normals from another object?

I want to make a wall of planks, where I can use a sphere's distance and normals to rotate the planks to the normals. Think of it as the sphere is "bending" the wall around it as a force ...
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16 views

Make a single user copy of an Alembic Cache file in Animation Nodes?

I have a setup in Animation Nodes that copies some objects with an Alembic Mesh Sequence modifier. The goal is to trigger the animation when a null is near the instance. The problem is that every ...
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30 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 ...
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1answer
66 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 ...
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1answer
26 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 ...
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25 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) ?
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1answer
17 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 ...
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1answer
18 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 ...
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1answer
82 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 ...
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16 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 ...
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19 views

How can I parametrize an object in order to fill in a face following its features?

Let´s suppose I want a terracotta roof, so it's composed of terracotta tiles. the scale of this tile should not be affected. The same tile has to be multiplied along the surface as many times as ...
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38 views

How do I get all classes of an object / instance via code

As an example for what I mean, the official Blender API says that the "modifiers" property of Objects has two classes: bpy.types.ObjectModifiers and bpy.types.bpy_prop_collection ...
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1answer
36 views

Is the instance of the instance B of a mesh A, considered to be the instance of mesh A, or an instance of Mesh B?

I have developed a habit of hitting shift+d to instance a mesh in a scene many times, except if I were to create 3 instances, I would instance the first mesh, then instance the instanced mesh, and the ...
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0answers
23 views

Can't get particles to shade smooth

I'm instancing 2 particle systems on one object. I'm also using the data transfer modifier to get custom normals on the same object. But to use that modifier I have to enable autosmooth. That's where ...
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1answer
18 views

How can I select object from collection and place it on spline from different collection THEN do it again until all splines are used?

This is follow up to my previous question here. I managed to get an answer and improve on it, however my current implementation is pretty cumbersome. I need to simplify my current solution, as ...
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1answer
57 views

Effect of "instancing on vertices" invisible to boolean modifiers, any other method instead?

I would like to have an equivalent of an array modifier, but with separate offsets. There are many answers but I found nothing which: is non-destructive, works with preceding boolean operators like &...
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1answer
1k views

How can I use weight paint values to change the scale in geometry nodes?

I am creating a scene in blender and want my grass to grow shorter near the path and the lake by taking data from weight paint, it was simple to achieve using the particle system, but I have no idea ...
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1answer
33 views

How to instanciate an object regularly on the surface of an other object [duplicate]

I'm in the process of modelling a building similar to reference picture below. I'm struggling with the part I highlighted in red. I can easily model one of these objects, but I'm looking for a way to ...
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0answers
14 views

Replacement for dupli_list and dupli_list_create

I am updating older work from before 2.8. The dupli_list and dupli_list_create have caught me out though and I am unsure how ...
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2answers
211 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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16 views

I can not make library overrides work for probs making such as cables with splines

I am making a range of probs for a production. When it comes to large scenes I used a lot X-Ref or instancing and referencing. In Blender the (new) features for this is "library overrides". ...
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1answer
80 views

Python: convert collections to empty-parents with hierarchy (problem with location of instanced collection)

I need some help with a script to convert big CAD-files with 80+ collections. The collections need to be changed to a empties with sub-empties and objects. And they need to maintain the hierarchy. I'm ...
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21 views

Instancing Static Meshes with Python

Forgive me, I am relatively new to Blender and I am struggling with terminology shared with other 3D applications. I am used to the term "instancing" being used to describe a situation where ...
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0answers
12 views

Is it possible to do only a part of make-instances real?

instancing is a very good function to reduce memory. But there is a limit to making it. It's hard to change some directions. The right side is made of alt + D. Can I change the direction like on the ...
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1answer
166 views

Leaves not appearing when making a particle system of trees

I'm following the forest tutorial by CG Geek(this one: https://www.youtube.com/watch?v=72LPW4S8bns). i want to put the trees over the landscape, but when i choose the collection to display, the laeves ...
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17 views

Rig controller material

I was curious if this was possible: I have a model of a product *(wall light) for rendering. the product has 4 or 5 different material options. I have it as a collection that I can import into any ...
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1answer
27 views

Instance from collection controlling in render layers

Is it possible to disable an 'instance' from a collection in View Layer? I don't see the option there. Right now, my instances stay visible in all my rendered layers.
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45 views

Randomizing texture coordinates has no effect on displacement texture position

I have run into the same problem as this old unanswered question, Cycles displacement material wrong uv mapping I can shift the vector coordinates of PBR textures on instances of dupliverts to break ...
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0answers
23 views

Instancing by face - problem

I would like to copy a parallelepipede object on the faces of a hegagonal object, in the same idea as it has been done [there] with the tip on the sphere1: But my result doesnt look like it should, ...
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0answers
65 views

Hide instance (original) light while keeping the instanced versions

I've created a lightchain. For that lightchain I need a point light at every "bulb", as an emitting material is too weak of a lightsource. To achieve this I have created an array of planes ...
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16 views

Aperture blades using vert instancing

I was following the advice in this Aperture Diaphragm in Blender 2.8 question, as well as the other question linked in that question, however once I cannot get the triangles to align properly, instead ...
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0answers
20 views

replace with instanced collections

Ok... I have an imported fb, lots of separate mesh, all needing to be separated (editmode/mouse over+L/P and repeat) a majority of the mesh items are the same. I would like to model a simpler ...
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2answers
406 views

How to make a shader with different emission strengths, depending on the object it is associated to?

I'm working on a lyrics video In this scene there are 41 curved neons going from the floor to the wall in front of the camera. I'd like to make their shader bright at the center (where the "...
1
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1answer
27 views

What's the best way to rotate objects identically in their own direction?

How to rotate these sticks evenly so that they roughly stay in place. I tried to use the array modifier and make them separate objects, and also somehow rotate them in relation to the 3D cursor, but ...
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0answers
34 views

Can you offset keyframes of instances?

Hey everyone I am just trying to figure out a little problem... I have this looping animation where a ball comes out of a tube and goes in the other side. In this scene I have made 4 instances of the ...
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1answer
56 views

Instance a rigged mesh

I am trying to create a reusable rigged mesh, specifficly a toggle switch. What I want to achieve is multiple switches that can be posed and animated separately but that share mesh data so I can go ...
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2answers
213 views

Can you use geometry node data to affect the material of instanced objects? (E.g. scale changes color)

Specifically, is there any way to change the color of the instanced cubes based on their scale attribute?
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132 views

Orientation in geometry node

I would like to orient all instances to follow the path of the main object. As you can see on my screenshot, first one is oriented as it should be...but after couple of curves, orientation messed up (...
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0answers
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I made a pile of balls using particle system and physics and now i want to replicate and transform this pile as an object not a simulation

I tried going to modifiers tab and click convert on the particle system modifier, but that tries to convert the whole simulation and crashes my pc , I only want to convert one frame of the simulation ...
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1answer
27 views

Would it be possible to dynamically update the collection offset for instancing?

So I like the idea of collection, but the main problem I have with collection is the lack of a define pivot. When I use collection for instancing, I need to place all the objects around the origin. ...
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1answer
78 views

Snapping doesn't work properly with collection instances

I'm trying to use collection instances (I think, the whole collection stuff is strange, confusing and in desperate need of a rework from the ground up, but I'm pretty sure that's what I'm doing) as ...
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1answer
38 views

I'm using objects as particles but the objects have hair. Why is the hair all going sideways?

I made some wheat, complete with the little hairs. I've set up a particle system to use my wheat reference and the result is pretty good at first glance. However, if I turn off phase randomization ...
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1answer
53 views

how to replicate spline and randomize bevel

I would like to randomize bevel size of the replicated spline. It look like Curve Object Output - Bevel Depth - doesn't work with list of numbers. Is there any other options? Thanks
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1answer
47 views

Shading issue on instances by vertices

I am making some railings and instead of use the array modifier to repeat them, I choose to do it using instances by object's vertices. My problem is at the point where instances connect. I have this ...
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1answer
367 views

Distribute object instances at every vertex

Can I distribute object instances at every vertex? I tried with the new geometry nodes but it only distirbutes randomly (see screenshot).

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