Refraction of Lighthttp://www.omnimaga.org/index.php?action=downloads;sa=view;down=761Here's an app i made for a school project. it's quite simple, but very helpful for fast checkings or even calculations. Just input the angle the lightray comes in, and the refractive index of both materials, and you get the refraction angle and the maximum angle for not having total reflection.
all angles are in degrees!