The Oren-Nayar model is a generalization of the Lambertian model of this phenomenon's diffuse form.
The Oren-Nayar model is a generalization of the Lambertian model of this phenomenon's diffuse form. The waves involved in this phenomenon lie in the same plane as the normal to the medium interface, and this phenomenon does not occur for a particular polarization at Brewster's angle. A wave undergoes the "total internal" variety of this phenomenon at the critical angle, and the angle at which this phenomenon occurs is equal to the angle of incidence. FTP, name this change in direction of a wave back into the original medium, easily observable using mirrors.
The Oren-Nayar model is a generalization of the Lambertian model of this phenomenon's diffuse form.
Reflection