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"Make Instances Real" took a collection instance and made it into a collection

this collection would include collection instances if they existed, for example i might have a road instance with a road mesh, but lamppost instances

now it has change so the entire collection is flattened, it's much like a deep copy being chosen instead of a shallow one, so effectivly this means now it doesn't just create a group that's identicle to the orginal collection , it splits all the sub-collections up

to demonstrate this create:

CollectionA: -add two cubes

CollectionB: -CollectionA_INSTANCE (this is an group instance of GroupA)

then create a group instance of CollectionB, make it "make instances real", it will make the two cubes appear however Blender 2.8 would have made an instance of CollectionA, not fully made sub-collections real also

How can i "make instances real" in Blender 2.9 like i used to in Blender 2.8? (blender version 2.93.6 LTS)

edit: to put it another way the old function replaced an instance with a duplcate of the collection in place

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    $\begingroup$ Well why don't you just duplicate the collection instance ? Maybe a screenshot or two might be more easily understandable ? $\endgroup$
    – Gorgious
    Commented Nov 22, 2021 at 7:48
  • $\begingroup$ that doesn't duplicate in place, and my collections may even be located on a different scene that's what i am forced to do but since they changed it, i'm just looking if there is a way of getting the old command back $\endgroup$
    – Richard Ellicott
    Commented Nov 22, 2021 at 18:55
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    $\begingroup$ Sorry still not sure exactly what the problem is. Could you add a screenshot of expected behaviour and current behaviour to see the difference ? $\endgroup$
    – Gorgious
    Commented Nov 23, 2021 at 9:44
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    $\begingroup$ I used Blender V2.8 and this functionality extensively and I don't remember it behaving differently. I just tested on 2.80 and using "Make instances Real" does not keep sub collection instances. Are you sure you didn't use another tool to do that ? $\endgroup$
    – Gorgious
    Commented Nov 25, 2021 at 21:51
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    $\begingroup$ Maybe you mean to enable "Keep hierarchy" and "Parent" in the operator parameters using the panel in the lower left of the viewport ? $\endgroup$
    – Gorgious
    Commented Nov 25, 2021 at 21:53

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While searching for this topic I came across this page and it may give you more information. I think I'm looking for the same solution as you are but I'm sad to say, there likely isn't one at the moment. You have the options to Duplicate Collection or Instance to Scene, but the instanced collection will never keep its hierarchy properly once made real. Even objects emitted by a particle system will be made real, and there's no way to change this behavior.

To quote 3.4 manual on Make Instances Real

Make Instances Real creates a new object for each instance generated by the selected ones, and removes any direct instancing from those.

In the end, each instance becomes a real object.

......

Note

Preserving relationships in recursive instancing cases (instancers instancing other instancer objects, etc.) is only supported to some extent currently.

Simple cases (like an empty instancing a collection containing instances of some other collections) will usually work, but more complex cases will fail to fully reproduce the whole instancing hierarchy.

This means that if you're for example working on an architectural project MyProject without using BlenderBIM, and want to create a project north using instanced collections MyProject_TrueNorth, and decided to make a quick local adjustment before rendering, you can't just use another instanced collection MyProject_TrueNorth_Adjusted and make it real. You must instead copy the collection MyProject as a whole (either through the Duplicate Collection operator or ctrl+c-v), Select Objects, make the same changes to rotation or scale as present in MyProject_TrueNorth, and THEN make your local adjustments.

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