Incised letters carved into the facades of buildings can change dramatically in how they appear through the day depending on sun angle and the strength of the sun.

This alphabet has been modelled in 3D as a test bed for the generation of fonts using this principle.

First, the alphabet was assembled from a intentionally pared back set of components, and then the sun angle was adjusted to test how the character of the letters changed depending on what portion of them was in shadow.