Of the many things I expected my iPad to do, ray tracing was not one of them. The ability to make realistic looking objects with accurate reflections was originally the domain of high end workstations, but over the years it has migrated down to laptop and desktop class computers.
Now the programmers at Angisoft in Germany have a pretty impressive ray trace app for the iPad. Called, appropriately, Quaternion Julia Raytracer HD, it renders quaternion julia fractals at a reasonably fast clip, and supplies some background images that can provide the reflecti