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starting noticing that my blender projects have 100s of invisible objects in them, which keep growing every time I edit/save the project. Anyone know how I can find and delete these invisible objects?

Invisible Objects

Invisible Objects View

Here is a sample blend project - could not get it under 30MB to upload it on blend-exchange: https://drive.google.com/file/d/1SsBY7Z_lQQ0qNITnvexc233jmPIf_Ag_/view?usp=sharing

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  • $\begingroup$ The first image - Are you Appending some object from another blend file to a new one seen on the second image and this object comes with others that are listed in Outliner, but not visible in 3D Viewport? $\endgroup$
    – vklidu
    Commented Jan 15, 2023 at 7:10
  • $\begingroup$ @vklidu yes, this is the situation - I am appending objects from another blend file but seems these invisible objects keep growing each time I open/edit the blend file. $\endgroup$ Commented Jan 16, 2023 at 0:29
  • $\begingroup$ What is at Layer 1? Probably better if you can share sample source file. Create a file with a Cube (Save, Close) than open a new file and try to Append the Cube from previously saved file. If that works fine would be better if you can share a file that you are using as source (you are append from) ... to see what structure is there. Ideally if you can delete all parts that doesn't participate on the issue (it would be lighter to upload and easier for us to understand to this file. Thanks $\endgroup$
    – vklidu
    Commented Jan 16, 2023 at 9:32
  • $\begingroup$ @vklidu I had to share the file on Google Drive. Link is in the original post. $\endgroup$ Commented Jan 20, 2023 at 0:57

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From given file I can see two things ...

  • 80 MB file contains 20 MB of Orphan Data (materials and images)

enter image description here

  • and than a weird thing ...under Outliner > Blend File there are four objects with materials that take the rest of MB.

enter image description here

To clean the file from those right click on each object (Cube.0011 ... .0014) and choose Delete. Those data (objects and materials) are still kept in blender under Outliner > Orphan data, Blender keeps it for next file opening (as some kind of backup). Open save it twice because first open-save delete material orphan data second delete images of these materials.

Why are mentioned objects kept in file I can't say, they are not linked, they are not marked as Faked User ... I don't see any relationship for those Data Blocks (that you can study closer in Outliner too) to behave like that.

  • If there will still persist some images go to File > External Data > Unpack.

This was about how to store them in the blend, but you were speaking about appending into a new file ... How does that happened for you?

When I try to Append like Cube.0011 into a new file it seams to be fine. The only one weird thing here is light blue color of origin the appended object ... should be orange as outline. Light blue color is referring to Linked object (that is not) ...

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