neutral ambient white light (renders pure albedo)
number of coefficients in n bands
Finds the principal light direction in the spherical harmonics with respect to light intensity.
Finds the principal light direction in the spherical harmonics with respect to light intensity. lightIntensity(n) = \sum_{i=0} Y_i(n) * lambertKernel_i * ( shl_r(i) + shl_g(i) + shl_b(i) )
empty coefficients vector
construct from directional light source with diffuse reflectance
default frontal illumination
values of the Lambertian reflectance kernel expressed in SH
empty coefficients vector
(Since version ) see corresponding Javadoc for more information.