The doughnut consists of 4,096 triangles. The cup consists of 8,452 triangles. The feature nets (red) consist of 63 extremal vertices on each of the two polyhedra. Most morphing trajectories are straight lines, except for a few around the rim of the cup, where material was "routed" along curved paths to avoid self-intersections. The crumpled appearance of the morphing surface around the rim of the cup is due to the dramatic change in surface shape between the two polyhedra, combined with a rather coarse triangulation. The shape of the folds matches the feature net portions on the doughnut which map to the rim of the cup.