Minimum Requirement: Qubicle Basic Edition
Boolean operations combine or subtract the geometry of objects from each other. Select two or more objects and choose Modify > Boolean.
The selection order is important to determine the actor of the boolean operation. In this case, the sphere has been selected last.
Union combines the selected objects to a single Matrix.
Difference requires a selection of 2 objects. Voxels of object A that overlap with voxels of object B are erased.
Intersection requires a selection of 2 objects. A new matrix of all overlapping voxels of objects A and B is created.