Physical Reproduction of Materials with Specified Subsurface Scattering

Physical Reproduction of Materials with Specified Subsurface Scattering

Milos Hasan, Martin Fuchs, Wojciech Matusik, Hanspeter Pfister, and Szymon Rusinkiewicz.

(ACM Transactions on Graphics, 2010.)

Physical Reproduction of Materials with Specified Subsurface Scattering Authors Milos Hasan; Martin Fuchs; Wojciech Matusik; Hanspeter Pfister; Szymon Rusinkiewicz Abstract We investigate a complete pipeline for measuring, modeling, and fabricating objects with specified subsurface scattering behaviors. The process starts with measuring the scattering properties of a given set of base materials, determining their radial reflection and transmission profiles. We describe a mathematical model that pre- dicts the profiles of different stackings of base materials, at arbi- trary thicknesses. In an inverse process, we can then specify a de- sired reflection profile and compute a layered composite material that best approximates it. Our algorithm efficiently searches the space of possible combinations of base materials, pruning unsat- isfactory states imposed by physical constraints. We validate our process by producing both homogeneous and heterogeneous com- posites fabricated using a multi-material 3D printer. We demon- strate reproductions that have scattering properties approximating complex materials.