Source: wikibot/hapke-parameters
= Hapke parameters
{wiki=Hapke_parameters}
Hapke parameters refer to a set of values used in the Hapke bidirectional reflection distribution function (BRDF), which is a mathematical model that describes how light is reflected off a rough surface (like that of a planetary body or a terrestrial material). The model is named after Bruce Hapke, who developed it to better understand and analyze the reflectance properties of planetary surfaces.