"Circumpolar Lantern" nests three 3D Voronoi structures, each layer with subtle form variations. A central light bulb hangs on a rotating steel cable, projecting shadows through the nested layers onto surrounding walls. The Voronoi tessellation creates cellular patterns-each cell's boundaries determined by proximity to seed points in three-dimensional space. Three layers multiply shadow complexity: outer layer casts primary shadows, middle layer adds secondary patterns, inner layer creates tertiary effects. The rotating light source animates these static geometries, shadows shifting as the bulb swings. Black powder coating on stainless steel maximizes shadow contrast. Developed for Bildmuseet Umeaa, the installation transforms gallery architecture into projection surface.
Research: 3D Voronoi tessellation generates cellular structures from seed point distributions. Each layer uses different seed configurations, creating form variations while maintaining nested relationships. The computational workflow: generate seed points ? calculate Voronoi cells ? extract cell boundaries ? scale for nesting. Three scales ensure proper nesting without collision. Cell size variations in each layer create different shadow densities-larger cells in outer layer, finer cells in inner layers. The rotating light mechanism required minimal interference with the geometric structure.
Photography: Thilo Frank
