It looks like it doesn't support mirrors or things like right angle prisms. Mostly targeting camera lenses, it seems. Not super useful to me at the moment. I'll be watching with interest.
No. There just isn't. It's a shame there are so many wheels for artistic rendering ray tracing with amazing performance, but simply no one bothered to invert camera as sources and objects as detectors, add more geometry and a tiny bit more of physics, and make a opensource non-sequential ray tracing engine suitable for optics design.
Commercial tools like Zemax cost a leg (> $13k, and they were changing to subscriptions even before being bought by ANSYS) and have a rather steep learning curve. There are newcomers like COMSOL offering a ray tracing toolbox, haven't tried but they are offering generous free trials and the price seems to be more reasonable.
Edit: maybe the abadonware Beam4 mentioned by another post worth trying.
I have done this myself, and I have a lot of experience in optics.
I have also written a ray tracing program in Excel, which was able to reproduce aberration diagrams. By doing this first, I could use “professional” tools.
Solidworks is excellent for reflective optics, and for prismatic, mainly planar systems. You can simulate Snell’s law either with an equation, or a simple construction using line segments of unit length, and of length equal to the refractive index of the surrounding medium. If you have nothing else, but you understand optics, you might get by with Solidworks. And there are commercial optics addins that have been written using the SolidWorks API.
