A constant BRDF: outgoing radiance is the same in every direction, so the surface looks equally bright from any viewpoint. Cheap, reciprocal, and the default diffuse term almost everywhere.
supersedescorrects · extends
classifiesspecializes · part-of
substitutes forapproximates · alternative-to
depends onrequires · validates
Colour is the family; a dashed line is the second member of it.
Drag to pan · scroll to zoom · click a node to open it
This node
specializesis a specific case of Diffuse Reflectionthe simplest case, a constant BRDF
Referenced by
correctsOren-Nayar fixes a defect in thisV-cavity distribution: rough surfaces flatten at grazing angles