This tutorial guides you through the process to create Refractographs and shows you the process I use to create these abstract photographs. Refractographs are caustic patterns produced as light reflects and refracts through an object.
Check out http://robturneyvisuals.com/portfolio/refraction/ for some examples of my refractographs or keep in touch on:
Facebook: https://www.facebook.com/RobTurneyPhotography
Note: There is little to no post production on the images and they are all images of real light and not computer generated.