Making template shapes

You have seen how the Boolean Modifier can combine, or make a union of, two objects. You have also seen how it can subtract one object from another to get the difference. In this chapter, you will use the final capability of the Boolean Modifier, the ability to evaluate two objects and take the overlap, the intersection, of the two.

You can think of the intersection like the middle part of a Venn diagram. If I had a Venn diagram with one circle illustrating 3D Modeling Software and another illustrating Free Software, Blender would be in the middle, in the intersection of the two:

A Venn diagram on software. Blender would be in the middle overlap

Similarly, if we had two cylinders in Blender and we took the intersection, we would be left with just the eye-shaped piece where both cylinders overlapped:

Two cylinders and their intersection

The Boolean Intersection...