An apparatus for determining a bidirectional reflectance distribution
function of a subject. The apparatus includes a light source for
producing light. The apparatus includes sensing means for sensing the
light. The apparatus includes means for focusing the light between the
light source and the sensing means and the subject. The apparatus
includes a computer connected to the sensing means for measuring the
bidirectional reflectance distribution function of the subject from the
light sensed by the sensing means. The apparatus can include only one CCD
camera for sensing the light. The apparatus can include means for taking
sub-measurements of the subject with light from the light source without
any physical movement between sub-measurements. A method for determining
a bidirectional reflectance distribution function of a subject.