Questions tagged [collections]

For questions relating the to the new 2.8 "layer" system and collection management

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Blender Python: Exclude Collections from View Layers [duplicate]

I would like to replicate in a script what happens if i exclude a collection from a view layer via hotkey E (bpy.ops.outliner.collection_exclude_set()). I cannot seem to find that exclude in the tree....
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1answer
25 views

Can't add objects to collections

I'm a super-beginner to this (and 3D animation in general) so please forgive me if this is a really obvious things I'm missing as I work my way through tutorials for Blender 2.8, but I can't find the ...
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12 views

Child object on different render layer?

I'm learning about compositing from an old pre-2.8x tutorial. The tutorial shows that an object parented to another object can be moved to a different view layer, which is then used by render layer to ...
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1answer
32 views

How to add a modifier to a collection?

My goal is to reduce the faces of an object using the decimate modifier. The object I'm editing has lots of vertex groups. Blender 2.8 only lets me add the decimate modifier to a single group at once ...
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0answers
9 views

The particles that are emitted from my object are all over the place

So I'm trying to have grass grow from a rock. I have a collection with two different patches of grass that I am using to cover my rock. Although, when I created my particle system, the patches of ...
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8 views

Export to DXF, convert each object to separate layer

I have imported an OBJ file into blender, After modyfing the objects in blender i want to export the file as DXF and have each object under the collection be a layer. Currently, when exporting to ...
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2answers
16 views

Can not select object in other collection

I'm using Blender 2.8 (Windows 10). I have two collections. One With a plane that I would like to hold a projection of an image I would like to convert into an object. The other collection with the ...
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1answer
19 views

How to keep parts of single object easily selectable in 2.8?

I have a humanoid character, and I want to be able to select and move it's parts (like the hand highlighted on the photo) easily - that is without having to select all their vertices/faces all the ...
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2answers
49 views

Python collection_duplicate() help

Is it possible to duplicate a collection from a Python script? When I do it manually, the Console shows bpy.ops.outliner.collection_duplicate(), however if I call ...
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4answers
127 views

Sorting Collections Alphabetically in the Outliner

I have numerous objects categories that I used to organize in Groups through a script in Blender 2.79. I'm now trying to switch to blender 2.8 and use collections, but in the outliner the only ...
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46 views

Particle collections: how to keep a sphere inside a sphere?

I am trying to use the particle system with a collection that consists of two spheres that are concentrical but different in size, in other words a small pink sphere inside a transparent larger sphere....
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14 views

How can I link selected objects to an existing collection(group)?

It seems like you can only link an object to a collection, one at a time. I've tried: ...
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1answer
63 views

How do you add an object to a specific collection only in python?

I made this short script. Why is the new object being added to the default collection? Can I get around unlinking the object, not linking it in the first place? How do you add an object only to a ...
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47 views

How to Instantiate Complex Collections With Variations?

Has anyone been able to instantiate complex collections with variations? Example: I have an elaborate light fixture with many objects and animations (all animations use Animation Nodes). Now I want ...
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1answer
32 views

2.8 - selecting object in collections?

I'm brand new to Blender so go easy.. lol It seems the right click menu is a new concept in 2.8 and I scoured the net and couldn't quite find the solution to what I am looking for. I am currently ...
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1answer
18 views

How to check if an object has a particle system or other modifiers

I have a few objects in my scene and I sort them in collections based on the some parameters of the applied particle systems. No problems here. I would also like to check if an object has a particle ...
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3answers
203 views

Change between layers using shortcut in blender 2.8

I've recently update blender to 2.8 and now I'm looking for a shortcut to change quicly between layers (or collection views). Something like 2.79 had: Shortcut to switch between layers? I use to make ...
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25 views

How to make a Collection in your scene active via python command(Blender 2.8)?

Thank you so much for the help so far. I'm trying to figure out how to make a collection active via script so that I can apply a series of commands to that collection. Can't seem to find any ...
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9 views

Cell fracture question

Once I generate a fracture, I want the collection that the fracture is on. I want it to disappear and reappear depending on the timeline. How would I animate that in blender 2.8?
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48 views

How to make objects ignore certain lights in blender 2.8?

In Blender 2.8 in Cycles, how can you make an object ignore certain lights? Lets say I have a cube in collectionsCube and a bunch of lights in collectionsLights, how do I stop collectionLights from ...
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26 views

Is anybody else accidentally hiding collections in blender 2.8? [duplicate]

often i forget i'm not in edit mode and i will press 1, 2, or 3. If you're in object mode it will hide all the collections i'm working with. Alt+H doesn't seem to unhide them and i have to manually ...
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11 views

Cant see my other collections/layers [duplicate]

So today I finally installed blender 2.8, and when I tried to open one of my old 2.79 works only the model that was on the 2nd layer (now collection) is selectable, the other ones are even greyed out....
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17 views

Setting to have added object appear in scene collection root instead of a group inside?

I am still getting used to the new scene collection feature. It's great but there's one behaviour that freaks me out. Whenever I add a new meshes it appears in one ...
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14 views

Leaves particle system won't show inside tree particle system

So I've made a landscape filled with trees that have been put in a particle system. The trees are in a collection. I also have leaves on the trees inside the collection, but the leaves are created ...
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1answer
86 views

Removing all meshes from a collection with Python

I have 2 collections in a scene (collection, items) both with objects (meshes, camera, lights). How can I select all objecst of type mesh from items and delete them? ...
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12 views

Blender 2.80 Collection Selection

I notice that this question was closed as off topic 8 months ago, but I see that a new version went live last week: I'm a (delighted) new Blender user of only 3 days, so please let me ask again: Is ...
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Not able to open child objects when Parent and Child Objects are moved to a new collection v2.8

I have a number of (growing) objects in my model, and so I'm now trying to organize them into separate Collections. The problem is that when I move a parent object and its related child objects into ...
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1answer
18 views

Changing value of shapekeys keyblocks with a specific name for all objects inside a Blender collection

This is my code right now: import bpy for k in bpy.data.shape_keys.keys() : bpy.data.shape_keys[k].key_blocks["Opened"].value = 0 It change the value of all ...
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1answer
187 views

Can elements of a collection be moved up or down?

Let’s say I want the NM.Top.Soil layer to be above Far.Mountain. I don’t see the way
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1answer
33 views

Deleting an object part of a collection does not remove it from the collection

Video to the question: https://youtu.be/kgvwxt84Rkg After deleting an object which is part of a collection it seems the collection still contains the deleted object (which i did not expect). ...
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2answers
57 views

How can I quickly find the collection an object belongs to?

I'm building a complex model that has many collections. Sometimes I add a new mesh to my model and it gets attached to the last collection I was working with. I need to move it to the appropriate ...
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0answers
31 views

Blender Python: Access Selected Collections?

How would I go about accessing the list of selected collections? It seems as though the selection state of collections is something specific to the Outliner? But I can't seem to find anything in the ...
2
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1answer
242 views

How to show collections in blender 2.8

I was creating a project in blender 2.8. I unintentionally pressed the 1 button, and now only one of the objects (each object is inside a collection) appears on the screen. All other objects are ...
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0answers
179 views

In blender 2.8 how do I make a scene-local instance of a collection after creating a linked scene?

I first discovered some workflow shortcomings of blender 2.8 when I asked " In blender 2.8 how do you make a local instance of an object in use by multiple scenes? " Now that I understand collections ...
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1answer
56 views

Animate collection instance (material) independently?

I have an object collection (let's call it a Red Cube for simplicity) which has a "blinking" animation (via emission material + keyframed mix shader). Now, I want to create several instances of that ...
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0answers
155 views

Blender 2.81: How do I mirror a collection of objects, instead of a single object, across the center pivot?

So Object Modifiers only work on objects, or is there some way to make them apply to a Collection as well?
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41 views

Collection is not visible in the outliner [duplicate]

I noted that if you create collection with Object > Collection > Create New Collection (CTRL+G). It create collection place object, but Collection is not visible in the View Layer. It looks that ...
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30 views

How do I list collections from a specific scene?

When I list collections from blender I always get collections only from first scene. How to get collections from specific scene. I use this code: ...
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0answers
29 views

Create Mesh op in a certain collection?

If you have a python script in Blender 2.8 that uses a primitive mesh generator like bpy.ops.mesh.primitive_ico_sphere_add(collection="???") It will be created in the active selected (in outliner) ...
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1answer
58 views

Object Organization - Hierarchies, collections, groups, empties?

If I want to organize my sub-components into a convenient hierarchy in 2.8, what is the best approach? Should I use collections, groups, empties, or simple parenting? First, I haven't been able to ...
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0answers
20 views

Preserve background images when isolating object

In Blender 2.79 background images would remain visible when isolating a single object. Now that they are technically objects themselves, they also disappear when isolating a specific object or hiding ...
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0answers
19 views

How to animate collections in 2.8

I'm using the cell fracture addon and I want to have the fracture appear on a certain frame, how would you do that in 2.8?
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1answer
66 views

Indirect Only filter for Collections not supported in EEVEE?

does anyone know if the indirect only button is unsupported in EEVEE? It works perfect in Cycles to bypass rendering a collection except for reflections, but in EEVEE it appears to do nothing. Thanks!...
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1answer
95 views

Can't select or interact with downloaded objects unless in edit mode

need some help. I downloaded this free car model, and everything worked great until i tried to move it around. It is made of many parts so I selected everything with A and tried to rotate the whole ...
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0answers
22 views

Collection instances are just like prefabs?

I wonder why unity can load for instance 100 000 objects ( prefabs) and handle them inside the viewport quite well, while blender struggles to even move just 10 000. Would it be easier for Eevee if ...
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1answer
506 views

Hi! Is there the way to select all the objects inside collection using shortcut (Blender 2.8)?

Is there the way to select all the objects inside collection using shortcut (Blender 2.8)?
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0answers
17 views

How do I paint all of my objects in collection to different colors via python?

I want every object in my collection to have different color. How do I make it via python scripting?
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0answers
22 views

Where can I find my collections? (Blender 2.8) [duplicate]

I just created a collection like a group in Blender 2.79. So I pressed Ctrl+G. I named my new collection. After that there is no sign of that collection. The outliner doesn't show it. There is now "...
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1answer
206 views

Blender 2.8 How do I set object/collection active and apply my script for each of collection's objects in via python?

I have a collection of leaves in my scene which calls Lines: Here's a little snippet that creates another leaf from leaf and randomize it: ...
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1answer
34 views

Is this expected behaviour for 'remove from all unlinked collections'?

I executed 'remove from all unlinked collections' command on a cube and the active object disappeared in viewport and I found it in orphan data. I tried to move the orphan object to scene collection ...