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everyone, I created a building shaped like a bowl, inspired by the Brasília Cathedral (though with some different measurements).

https://en.wikipedia.org/wiki/Cathedral_of_Bras%C3%ADlia

Similar to the Cathedral, I want to create "arches" around the main structure...

I've tried making an arch, and I know I should probably use something like an array, but I just can't figure out how to use it properly!

I took a look at other questions about arrays, but I confess I couldn't find the answer. The funny thing is, I know it's something simple haha!

Could someone help me out?

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  • $\begingroup$ You want that circular distribution of the arches? $\endgroup$ Nov 14, 2023 at 18:15

2 Answers 2

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Create a cube, in Edit mode move it away from its origin, scale it on Z, in Object mode create an empty at the exact same location:

enter image description here

Give your object an Array modifier, Count > 16 or whatever, enable Object Offset instead of Relative Offset and choose the empty as object:

enter image description here

Rotate the empty 22.5° on Z:

enter image description here

Model your object as needed, the instances will deform as well:

enter image description here

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  • $\begingroup$ Thank you very much. Btw, your structure is really nice haha haha $\endgroup$
    – Thomas
    Nov 14, 2023 at 19:19
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  1. Add an Array modifier and turn on Object Offset
  2. Add an empty in the scene (technically any object will do)
  3. Set this empty as the object for the offset
  4. Make sure the location of your empty and the arches is the same.
    The empty will most probably be in the center. Place your 3D cursor in the center. Select the arch > right click > Set Origin > Origin to 3D cursor.
  5. Now simply rotate the empty around the Z-axis.

Result:

enter image description here

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  • $\begingroup$ exactly! Thanks!!!!! $\endgroup$
    – Thomas
    Nov 14, 2023 at 19:18

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