Measuring BRDFs of Immersed Materials
Kai Berger, Ilya Reshetouski, Marcus A. Magnor, Ivo Ihrke · 2011
We investigate the effect of immersing real-world materials into media of different refractive indices. We show, that only some materials follow the Fresnel-governed behaviour. In reality, many materials exhibit unexpected effects such as stronger localized highlights or a significant increase in the glossy reflection due to microgeometry. In this paper, we propose a new measurement technique that allows for measuring the BRDFs of materials that are immersed into different media.