We introduce a new volumetric sheen BRDF that approximates scattering observed in surfaces covered with normally-oriented fibers. Our previous sheen model was motivated by measured cloth reflectance, but lacked significant backward scattering. The model presented here allows a more realistic cloth appearance and can also approximate a dusty appearance. Our sheen model is implemented using a linearly transformed cosine (LTC) lobe fitted to a volumetric scattering layer. We detail the fitting process, and present and discuss our results.
Tatiana Pieloni, Nicolas Frank Mounet, Christophe Emmanuel R. Lannoy
Tatiana Pieloni, Nicolas Frank Mounet, Christophe Emmanuel R. Lannoy