radiance
Sets the irradiance computed from radiance spherical harmonics coefficients.
Coefficients are raw radiance values (not pre-convolved). The builder automatically convolves them and applies the Lambertian BRDF.
Return
This Builder, for chaining calls
Parameters
bands
Number of SH bands (1, 2, or 3)
sh
Array of 3D coefficients; size = bands² (1, 4, or 9 float3 values)