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:

in the outliner they're armatures with a child mesh of the zombies

What I want to do is scatter them on a plane randomly, either with a hair particle system, or a geometry node distribution.

My problem is in both cases, if I take the "Zombies" collection as a the source and ⚠ I don't want to use "whole collection" as I want each of them to be randomly scattered, not the group as a whole ⚠ , the particle system (or geo node distribution) actually goes a bit too far in the separation process and scatters the armature separately as it's own object ! enter image description here

Is there a way of doing what I want, which is to non-destructively use the armature and it's child mesh as one object in the collection that the Particle system (or geometry node point distribute) sees ?

I could "use count" in the particle system and remove the armatures, but it's tedious and doesn't scale well (and more of a workaround as well), also I really want to use geometry nodes instead and there's no such option (yet) anyway.

Right now I'm just trying to scatter each "object" mesh separately on it's own particle/hair system or geometry node point distribute but it's also tedious and is gonna be a pain if I start to introduce even more different zombies.

I don't know what to do so if you have any idea I would love to hear !

Thanks you guys

  • $\begingroup$ Could you move the armature to a different collection? $\endgroup$
    – Nathan
    Jul 11 '21 at 20:05
  • $\begingroup$ @Nathan I can't really do that as it seems to remove the link between the two, but what I did was to link (shift + m) the meshes only in a separate collection, which worked well ! $\endgroup$ Jul 12 '21 at 21:57

Your problem is very simple : When you uncheck "Whole Collection", the point instance node will instance a random object contained within itself, regardless of the parent hierarchy. It only sees a list of all objects that it contains, and no parenting structure. That's why it sometimes instances the mesh, and sometimes only the rig.

Currently the only solution I see is to use sub-collections, as in this case the Point Instance node will instance the whole sub-collections.

Here are my 3 sub-collections within my master collection :

enter image description here

And the instanced geometry using a plane :

enter image description here

  • $\begingroup$ Hey thanks for the suggestion, what I found worked alright as well was to just link the meshes only in another Collection and use that one ! $\endgroup$ Jul 12 '21 at 21:56
  • $\begingroup$ @LeoMozoloa Yeah that's another solution ! Hopefully in the future we'll have filtering tools in the point instance node akin to the particle systems $\endgroup$
    – Gorgious
    Jul 13 '21 at 6:23

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