Bi-hemispherical reflectance is the reflectance of a surface under diffuse illumination (with no direct component). Bi-hemispherical reflectance is the integral of the BRDF over all viewing and illumination directions of a hemisphere. It is sometimes called "white-sky
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Bi-hemispherical reflectance is the reflectance of a surface under diffuse illumination (with no direct component). Bi-hemispherical reflectance is the integral of the BRDF over all viewing and illumination directions of a hemisphere. It is sometimes called "white-sky albedo
Albedo
The albedo of an object is the extent to which it diffusely reflects light from the Sun. It is therefore a more specific form of the term reflectivity.... ". See also: Directional-hemispherical reflectance
Directional-hemispherical reflectance
Directional-hemispherical reflectance is the reflectance of a surface under direct illumination . Directional-hemispherical reflectance is the integral of the BRDF over all viewing directions....
