This series of Experiments with Shaders explores  several  variations  of
Iterated Function System (IFS) fractals

The shaders are based on the use of a somewhat generic  Iterated Function
System kernel which can be parameterised to generate both Mandelbrot  and
Julia set fractals, but is not limited to just those.

The system is still under development. Fuller documentation describing it
and how to use it will be supplied when the system itself is stable.