Model of bidirectional reflectance distribution function for metallic materials

Wang Kai¹, Zhu Jing-Ping^{1, †,}, Liu Hong^{1, 2}, Hou Xun¹

Relationship of normalized BRDF and reflected angle at different incident angles for Fe (a) θ_i = 20°, (b) θ_i = 40°, (c) θ_i = 60°.