This 3D animation is a visualization of the protein layout making up a virus capsid.
This animation allows you to display different layouts that can exist in nature. For a given set of patameters (h and k), these proteins are forming different sized and shaped tiles (called capsomers), connected together, eventually making up a polyhedra. Here the capsomers are shown as black shapes and the connection between them as red lines. They are projected onto an icosahedron to highlight the underlying icosahedral symmetry.
Each tiling can be characterized by two numbers h and k according to the generalized Caspar Klug priciple.