There is only one step left: producing a lattified version of the specified volume. I mentioned that volumetric data offers the advantage of being able to use Boolean Operations more efficiently. Three sets of operations would be used to create a lattice structure. Which are as follows:
A union of line segments to create the unit cell we want to visualise, as previously said, "a lattice is a tesselated unit cell..." At this point, we shall create that single unit cell.
A repetition operation to tesselate our unit cells on any axis. Which can be found in the following article: Inigo Quilez: Infinite Repetition
An intersection operation to mold our lattice into the correct shape. Which can be found in the following article: Inigo Quilez: Primitive Combinations
The implementation of these steps within our fragment shader could look as followed: