What this paper means for Computer Graphics?
This paper is at the overlap between two subfields in Computer Graphics: Color 3D printing using Material Jetting and light transport simulation (or rendering). It proposes to use a model obtained via machine learning to predict the subsurface scattering effects that occur within the 3D printouts. Using this prediction one can compensate for some of the unwanted effects by re-arranging the materials within the object using a virtual optimization.
The model itself is capable of predicting the surface appearance of fully-heterogeneous media (including spatially-varying density and albedo, constant phase function (g=0.4)).
Eurographics 2021 introduced a page on Reddit where the discussion about the paper can be continued after the conference.