The book Fractals Everywhere of Dr. Barnsley is the source of several types of fractals adopted by Fractint.
Barnsley introduced the theory of Iterated function systems (IFS): with
a small set of affine transformations it is possible to generate every
type of self-similar fractals. The most frequent examples in the book are
ferns and Sierpinski triangles.
Based on IFS, Barnsley has a patent for an algorithm that compresses every picture to FIF: fractal image format.
Fractint allows to generate some types of fern fractals; but the examples below have nothing to do with IFS, they are just variations of the classical function f(z)=z2+c for the Mandelbrot set.
(with Fractint 19.5 the image is less symetric than with Fractint 18.2 !)
Fractint's color-cycling shows the 'geyser-effect'.