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Fractal of the Day
by Jim Muth
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Fractal visionaries and enthusiasts: With today's image we return to the 'phoenix' formula, this time to the Julia version. I will not try to describe in words how this complex formula works, but the full details can be seen by striking the 'Z' key when the image is on the screen. Today's image pictures the whole parent fractal, the only change being that I rotated it -90 degrees. I gave the image its name "Hourglass" when it was perpendicular to its present orientation and actually resembled an upright hourglass. As it now stands, the hourglass has tipped onto its side. To add a bit of interest to the image I departed from my usual outside=iter inside=0 routine and set the outside to 'real' and the inside to 'bof61'. The areas of chaotic detail are 'outside'; the hourglass shape itself is 'inside. I must have done something right, for this resulting fractal rates a 7. The rating of a 7 is perhaps slightly flattering, but I did put a bit of extra work into the coloring, and I feel the rating is earned. Despite the complexity of the formula, the image is a very fast one, rendering in only 1-1/4 minutes. Combined with the rating of 7, this speed gives an overall worth of 529. This entire confusion of render time, rating, and overall worth can be avoided by downloading the pre-rendered image from the FOTD web site at: With a temperature of 57F 14C, Thursday was mild enough here at Fractal Central, and the showers ended before noon, but the wind blew a gale all afternoon, making the fractal cats too skittish to stay out longer than 15 minutes. They spent most of the afternoon on the shelf by the window, watching the dried leaves blowing around, turning away from the window only occasionally to wash each other behind the ears. Surprisingly, they asked for only a small treat of tuna before bedtime. Today is starting sunny, but it is freezing cold. I guess the cats will have very clean ears by the time the day ends. I don't know what I'm going to do for the rest of the day -- I am simply not accustomed to days with totally free time. But I might need a lot of that free time; the next formula in line is a killer. To see what kind of fractal results, check back in 24 hours. Until then, take care, and get in the big time with the big-time fractalists. Jim Muth jamth@mindspring.com jimmuth@aol.com |
START PARAMETER FILE=======================================
Hourglass { ; time=0:01:19.42--SF5 on a P200
reset=2004 type=phoenix passes=1 float=y
center-mag=0/0/0.7961192/1/-90/-1.233735336115e-014
params=0.2109862666707358/0.9854165166173284/-3
maxiter=250000 bailout=4 inside=bof61 outside=real
logmap=yes symmetry=xyaxis periodicity=10
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qYaoa`nf_ljZkkVddcDgbCjaC }
END PARAMETER FILE=========================================
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