I am using blender 3.4 which should be able to use the boolean difference and intersect to cut of parts of an object using a plane. In this case, I need to cute a cubic building with poles at the location where the plane intersects the poles. See figure below

enter image description here

When I try to cut of the lower part of the poles (below the plane) using the difference function, it cuts of the upper part of the building. I would like to turn this around and cut the lower part of the poles instead of cutting the upper part of the building. enter image description here

The intersect boolean cuts of everything that does not intersect, so only four small squares remain. enter image description here Does anyone have an idea whether it is possible to turn around which part is being cut of? Such that I can cut of the part of the building that is below the plane?

  • 1
    $\begingroup$ You need to invert the normal of the plane (in edit mode, SHIFT N, F9, click on "Inside") $\endgroup$
    – Gorgious
    Mar 27 at 13:48
  • $\begingroup$ You can use bisect instead, or you can change the plane normal as Gorgious suggested, or you can turn the plane around. $\endgroup$
    – TheLabCat
    Mar 27 at 15:58


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