Geometric Optics

Andreas Macke geometric optics codes
http://tools.tropos.de/
ray-tracing code for light scattering at polyhedral shaped particles
ray-tracing code for light scattering at ellipsoids
ray-tracing code for light scattering at circular cylinders
ray-tracing code for light scattering at non-spherical particles containing scattering and absorbing inclusions
ray-tracing code for light scattering at ellipsoids containing scattering and absorbing inclusions