Light Creases

The Light creases begin to deal with marble as drapery and create folds which hide openings that will allow the infiltration of direct light.  I'm now looking at how these cuts and folds can be generated.  Going back to the circles that generate the arches, I have developed them into spheres, and the creases occur when the sphere intersects with the boundaries of the space.  The top image shows one of the spheres and how it cuts into the surfaces, and the lower three are showing the intersections of all three spheres (three spheres since there are three arcs towards the top of the building)