Question

Explain Bidirectional reflectance distribution function !


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Answer 1

The bidirectional reflectance distribution function (BRDF; ) is a function of four real variables that defines how light is reflected at an opaque surface. It is employed in the optics of real-world light, in computer graphics algorithms, and in computer vision algorithms.

BRDF is usually obtained by experimental measurement. Generally, a spectral radiometer or digital camera is used to capture reflected information. Such equipment is usually much larger and heavier, which limits the measuring angle range to a great extent

Answer 2

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