Light incident on a rough surface will be diffuse after passing it. Angular intensity depends on the grinding of the glas surface. I'm trying to find information about scattering indicatrix of light passing through the rough glass.

How to calculate it numerically, which parameters are essential. At least where I should search for it. Also will be glad to find how to calculate it from equations of electromagnetic fields.

Light incident on a rough surface will be diffuse after passing it. Angular intensity depends on the grinding of the glass surface.

I'm trying to find information about the scattering indicatrix of light passing through the rough glass: how to calculate it numerically, which parameters are essential, etc., or at least where I should search for it. I would also be glad to find how to calculate it from the equations of electromagnetic fields.