Bidirectional reflectance distribution function (BRDF)
angles
Ashikhmin Shirley
Cook Torrance
Database
3D Plot
Image Slice
Lit Sphere
MERL
half vector
parameters
Diffuse Lobe
Disney BRDF
energy conservation
light directions, spherical polar coordinates
MERL
Oren Nayar
original definition
parameterizations
3D Plot
difference vector
halfway vector
Image Slice
Lit Object
Lit Sphere
MERL
parameters
spherical polar coordinates
Polar Plot
positivity
reciprocity
Specular Lobe
subsurface scattering
Ward
Bidirectional surface scattering reflectance distribution functions (BSSRDF)