The pillars (Individual polygon manipulation and mesh reconstruction)

Manipulate a face of a given mesh with transform and reconstruct it from the new poligons. All procedural, clear and extremely useful technique.

Method: A simple animation nodes setup with clear explanations.

Details:

1. Here we create a procedural mesh. (But the method is adaptable to any mesh)
2. We rotate the top face (and, additionally, we instance the shperes on top of them)
3. We reconstract the mesh anew, so it is a new mesh with the rotated faces, without anything else changed.

Thats all ! Enjoy !