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Daily Blender Tip 320: Infinite Sofas with Group Instances


Jan van den Hemel writes:

When duplicating objects, we quickly see the memory use increase. But Blender lets you have a ridicilous amount of duplicate objects at little to no memory cost. It's almost like magic. This quick video shows you how.

About Author

Jan van den Hemel

Hi, my name is Jan and I help companies by creating short video's for their websites. I also do freelance 3D work and post daily one-minute tutorials for Blender users.


  1. Perhaps you should not use the word "Group" in this tip? Groups were something different in Blender 2.7x. Using Alt+D has a similar function, and is much easier to understand than the confusing new "Collection Instance".

    • Yes, I should not say Ctrl+G and Group, but rather m and Collection.
      But Alt+D really is something different, and does increase the memory and geometry count where instances do not. Really, try it out if you don't believe me.

  2. This is amazing tip, thank you very mich gfor sharing!
    So now you can do huge Evee scenes in a performant way, right?

  3. Jan, Shift+D duplicates and Alt+D instances. Instancing a collection instances its content, adding or transforming objects inside an instanced collection affects its instances. I think it's a good point anyway, I didn't know about instanced collections before seeing this.

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