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After importing objects from 3DS Max (via fbx), I have a scene with

  • 60M tris, 40M faces
  • 4K objects (of which many empties, some without any children)
  • Around 2.5 gig, without any textures
  • Quite a few linked objects (i.e. repeating structures)

There are no subdivisions or other modifiers active, and adding / editing / navigating are all quite responsive. However, Undo, Merging objects and especially Deleting objects is incredibly slow. For example: now I've been waiting 20 minutes for the scene to delete 150 objects!

What am I doing wrong? How could I improve this situation?

I understand that undo will remain slow because of the file size.. It's mainly the deleting and merging that is annoying me.

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    $\begingroup$ Yes undo will be a killer. An oft posted link I'd Suggest creating a script Do the objects to be deleted has some naming convention, or another way they can be searched for? $\endgroup$ – batFINGER May 24 '18 at 11:21
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    $\begingroup$ Split your scene into manageable chunks, save them in separate files. Use linking in a master file as much as possible $\endgroup$ – Duarte Farrajota Ramos May 24 '18 at 12:08
  • $\begingroup$ but would you say the problem is caused mostly by having many polygons, or by having many objects? $\endgroup$ – Warner May 24 '18 at 14:06
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    $\begingroup$ Large amounts of objects cause severe slowdowns probably faster than high poly counts $\endgroup$ – Duarte Farrajota Ramos May 24 '18 at 18:01

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