Pavel: Decorative Patterns with Packed Volumetric Elements

F. A. Fanni, F. Pellacini, R. Scateni, A. Giachetti
ACM Transactions on Graphics, 2022


Many real-world hand-crafted objects are decorated with elements that are packed onto the object’s surface and deformed to cover it as much as pos- sible. Examples are artisanal ceramics and metal jewelry. Inspired by these objects, we present a method to enrich surfaces with packed volumetric decorations. Our algorithm works by first determining the locations in which to add the decorative elements and then removing the non-physical overlap between them while preserving the decoration volume. For the placement, we support several strategies depending on the desired over- all motif. To remove the overlap, we use an approach based on implicit deformable models creating the qualitative effect of plastic warping while avoiding expensive and hard-to-control physical simulations. Our decora- tive elements can be used to enhance virtual surfaces, as well as 3D-printed pieces, by assembling the decorations onto real surfaces to obtain tangible reproductions.