Physical Reproduction of Materials with Specified Subsurface Scattering


We investigate a complete pipeline for measuring, modeling, and fabricating objects with specified subsurface scattering behaviors.

July 26, 2010



Milos Hasan (Harvard University)

Martin Fuchs (Princeton University)

Wojciech Matusik (Disney Research)

Hanspeter Pfister (Harvard University)

Szymon Rusinkiewicz (Princeton University)

Physical Reproduction of Materials with Specified Subsurface Scattering


The process starts with measuring the scattering properties of agiven set of base materials, determining their radial reflection andtransmission 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 materialthat best approximates it. Our algorithm efficiently searches thespace of possible combinations of base materials, pruning unsat-isfactory states imposed by physical constraints. We validate ourprocess by producing both homogeneous and heterogeneous com-posites fabricated using a multi-material 3D printer. We demon-strate reproductions that have scattering properties approximatingcomplex materials.

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