2019-08-26 09:50:55.0 [tstevens] Insert Concept add broader relation (BIDIRECTIONAL REFLECTANCE FACTOR [eddd1f51-a6ae-4c35-bac5-e68131fcb386,369063] - REFLECTANCE [00a21e9c-0c1d-4931-b9fa-b0204625a98a,368895]);
REFLECTANCE
BIDIRECTIONAL REFLECTANCE FACTOR
A function describing the anisotropy of reflected radiance from a surface illuminated from a single direction