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So let's say I have a model of a window and I have a lot of holes in my walls dedicated for windows that are all different sizes but exact same type as my first window and I want to copy it and scale it to correct sizes, but I want to avoid going to edit mode and moving vertices of each one (because I have like 43 of them or something) and I want to do it quickly and efficiently.

What can I do?

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I can use Hook modifiers and duplicate the window together with hook objects parented to it, then just snap the hooks into places.

I probably first want to make sure I can snap the whole window to some point, so I'll just move it's origin to some corner of my first hole in the wall:

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Then I can snap an empty to one of the edges of the hole, select my window, go to edit mode, select that side Ctrl + Click on that empty to select it from edit mode and hit Ctrl + H to hook it to that selected empty. I also want to parent that empty to my window( Ctrl + P ):

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Now when I move my window it moves normally and moves the empty with itself, but when I move the empty, it moves the side of the window:

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I also just so happen to have geometry in the middle, so I can hook it to the same empty and just adjust the modifier to be half as strong:

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I can repeat the same process for the top and any other parts I want to easily snap not forgetting to parent all the empties to my window. Now I have an adjustable window. I can use Alt + D duplicate linked to also only have the geometry of my 43 windows only saved once in the file(And it might also have some benefits when rendering).

Now I can start duplicating them. I just also need to remember to select children by hitting
Shift + ] so the empties are also duplicated and I just snap the empties while holding Ctrl down:

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  • $\begingroup$ Interesting use of the hook modifier, and linked duplicates to keep the geometry definition count low. I hope the geometry nodes gizmos that are in the works will help simplify this process $\endgroup$
    – Gorgious
    Commented Jun 25 at 6:42
  • $\begingroup$ I think it's physically faster to setup because of Ctrl + H hotkey and because hook modifiers can automatically take care of offsets. It will probably take longer to set up Geometry Nodes. But who knows. Geometry Nodes Gizmos sound exciting. $\endgroup$
    – Martynas Žiemys
    Commented Jun 25 at 7:27
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    $\begingroup$ FWIW devtalk.blender.org/t/geometry-nodes-gizmos-feedback/32073 $\endgroup$
    – Gorgious
    Commented Jun 25 at 17:41
  • $\begingroup$ Is it going to support snapping though? $\endgroup$
    – Martynas Žiemys
    Commented Jun 25 at 17:43
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    $\begingroup$ I hope so, it would be a shame if it didn't. $\endgroup$
    – Gorgious
    Commented Jun 25 at 17:48

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