Welcome to the fractal world (I'm sound like a geek now...)
Fractal art is a form algorithmic creative by calculating fractal objects and representing the calculation results as still images, animations, and media. About what is 'fractal' [link]
The form of fractal I use in this work calls Mandelbulb, the 3D form of Mandelbrot z=z^2+c. Rendered from my own program calls fx101. Several program like Mandelbuilber, Mandelbulb 3D and Tacitus also generate 3D fractals like this.