RGB reflective ink photo-render comparison

goniochromatic Schlick for Fresnel sRGB 2 lights negative difference positive difference

Emitted radiance (L_e):	0.0 1.0
Subsurface scattering (albedo):	0.0 1.0
Diffuse coefficient (k_d):	0.0 1.0
Specular coefficient (k_s):	0.0 1.0
Shininess (alpha):	1.0 1.0e2
Roughness:	0.0 1.0