Experimenting with Caustics

Here’s a little image I did a while back which I wanted to create just to experiment with lighting and caustics. Caustics for those who aren’t sure what this is….

In optics, a caustic or caustic network [1] is the envelope of light rays reflected or refracted by a curved surface or object, or the projection of that envelope of rays on another surface.[citation needed]The caustic is a curve or surface to which each of the light rays is tangent, defining a boundary of an envelope of rays as a curve of concentrated light.

Thanks Wiki 🙂