| http://www.w3.org/ns/prov#value | - A reflectance map, in general, is a function associated with a particular material that specifies how much incident light is scattered in a particular direction as a function of the surface normals. [0081] Light impacting a Lambertian surface is scattered equally in all directions, and surfaces such as paper, Tyvek??? (Tyvek is a registered trademark of Dupont), and many other materials with ???ma
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