We have some asymmetric scatterers in the lab that I would like to model in zemax.
They have different gaussian scattering properties in horizontal and vertical direction.
So i tried to use the Gaussian XY DLL to model it, but it behaves weired. A ray hitting the surface perpendicular is scattered as intended, but rays under even small angles are changing it completely. The scatter pattern for a ray with 1° in x-direction is twisted 90° to a ray under 1° in y-direction.
Is there a mistake or do I something wrong?
I have attached an example file.