How’s this for plasticity? Louis Kahn, Exeter Library. Rhythm & Unity.
The columns create the rhythm of light, use and volume of the space. Even the lighting fixtures are place in a way to add a 3rd dimension to the various planes of view. This whole thing can be explained simply by studying the light & shadow of this photo.
Ol' Kahn sure made it hard for the rest of us.
Frank M. Bua