🚀 go-pugleaf

Does anyone out there know how FractalWitchcraft achieves its speed?
I was completely stunned at the time it took FW to generate the example
image (Lightning...) in comparison to Fractint 17.2 with no floating point
and guessing:
Fractint 17.2: ca. 2h15min
FW: 	       ca. 20sec   
(486-33)

I've figured that FW's speed cannot result from the way it builds up the
screen. First of all, there is nearly no difference between edge tracing on
and off. Also, I believe the little pseudo-tesseral thing it does can't be
credited for the speed (it doesn't even recognize larger areas of single 
color). I think FW must have some speedup in the core iteration loop, mainly
because it seems nearly unaffected by iteration limit variations.
Anybody got more info?

Thanks
--
Michael R. Ganss         B: Cup or cone?
rms@cs.tu-berlin.de      A: Cone. I like to lick.