With what we have got so far, we can construct the volume shown in the chapter introduction like this:

The CSG operations are:

- U: Union
- I: Intersection
- D: Difference
- S: Sphere
- C: Cube
- S: Sphere

With what we have got so far, we can construct the volume shown in the chapter introduction like this:

The CSG operations are:

- U: Union
- I: Intersection
- D: Difference
- S: Sphere
- C: Cube
- S: Sphere