Search for: [Abstrakt = "Based on the Torrance–Sparrow model, a modified and simplified five\-parameter model is obtained. Multi\-angle bistatic reflectance data of surfaces of various materials are fitted using this model. Genetic algorithm is used to optimize the parameters for the model. The results of the five\-parameter model are in good agreement with experimental data which do not take part in fitting, and are close to the results of two\-dimensional bidirectional reflectance distribution function \(BRDF\) models. The five\-parameter model shows a good applicability to various rough surfaces with different surface optical properties. The five\-parameter model can be used to construct a three\-dimensional BRDF distribution based on the spatial experimental data, which may provide more information on light scattering from rough surfaces."]