11-13-2013, 06:49 AM

The Juliabulb formulas are the same as the standard Mandelbulbs, z^n+c, where z and c are triplex numbers (a version of 3D complex number defined in spherical coordinates). The Triplex series transforms to the polar axis using sin(phi), while the Tripco series uses cos(phi). For Triplex3T, n is 3. As usual, the Mandelbulb iterates from a fixed z and varies c, while the Juliabulbs have a fixed c and vary z. XD uses inverse iteration towards the attractor, which works for Julia sets but not Mandelbrot sets.