Calculating Hemispherical properties

[NatkamonPS]

Hi, Nice to meet you all. I apologize for the naive questions.

1. In my understanding, If I want to calculate the hemispherical reflectivity, I have to do the simulation for each polar and azimuthal angle and integrate over these two angles for s and p polarizations right? So, number of simulations will be (2 polarizations)x(number of discretized polar angles)x(number of discretized azimuthal angles)

2. For 1d grating, with symmetry, a calculation in the range of (0, 90) degrees for both the polar and azimuthal angles is enough am I correct?

Thank you very much