; Date: Sun, 11 Jul 2010 22:23:22 -0400 ; ; To: fractint@mailman.xmission.com ; ; From: Jim Muth ; Reply-To: Fractint and General Fractals Discussion ; ; ; Subject: [Fractint] FOTD 12-07-10 (Arc-Tangent Does It [8]) ; ; Id: <1.5.4.16.20100711222324.10d76272@pop.mindspring.com> ; --------- ; ; FOTD -- July 12, 2010 (Rating 8) ; ; Fractal visionaries and enthusiasts: ; ; Today's image is located in the middle of nowhere. Well, it's ; actually located in a parent fractal resembling a Mandelbrot ; set starting to split apart along its negative X-axis. The ; scene lies in the apparently empty space between the two spread- ; apart branches of the parent's Scepter Valley. ; ; When I first rendered today's image in the usual manner, it was ; a total flop. But thanks to Fractint's various rendering ; options, I raised the total flop to a rating of an impressive 8. ; ; The delicate and decorative fern-like features jutting in from ; the edges consist of 'outside' stuff exaggerated by the 'atan' ; option; the soft, gently colored aura surrounding the order-3.5 ; minibrot is 'inside' stuff made visible by the 'fmod' option. ; Put all of this together and the image honestly earns its 8. ; ; The name "Arc-Tangent Does It" came to mind when I tried the ; 'atan' feature on the original near-hopeless image and saw the ; unexpected improvement. Re-rendering the scene with the 'fmod' ; inside was an afterthought. ; ; The calculation time of 1-1/4 minutes will pass swiftly once the ; full glory of the scene becomes apparent. It will take even ; less time to view the image already calculated on the FOTD web ; site at: ; ; ; ; According to the fractal cats, a splendid day prevailed here at ; Fractal Central on Sunday. The humidity was quite low and the ; sky was completely cloud-free all day. True, the temperature of ; 88F 31C was on the warm side, but the dry air kept things quite ; comfortable. ; ; With the work caught up after a hectic week, my day was spent ; trying to relax. My next task is to stay caught up and relaxed ; so I can finish a logo for the FOTD web site. I have the ; design, which includes some 4-D stuff, worked out, but I have ; not yet done the footwork. FL spent the day Sunday giving hints ; that it was her XX'th birthday. (I had not forgotten.) ; ; If all goes well, and even if it does not, the next FOTD is ; quite likely to be posted in 24 hours. Until then, take care, ; and iterate wildly. ; ; ; Jim Muth ; jamth@mindspring.com ; jimmuth@aol.com ; ; ; START PARAMETER FILE======================================= Arc-TangentDoes_It { ;_time=0:01:13.71-SF5_on_P4-2000 reset=2004 type=formula formulafile=basicer.frm formulaname=FinDivBrot-2 function=recip inside=fmod center-mag=-1.267991618657123/-0.0061887110744204\ /199069.8 params=3.5/-99/0/0 float=y maxiter=2500 proximity=0.0003 outside=atan periodicity=6 colors=000000000000000000000000000000000000000000Z\ 7O_7O`7OXAPTDPQFPMIPGLOJKPLKQNKQPKRSKSUKSWKTYKU`KU\ bKVdKWeJXfKWfLVfMVfNUfOTfPTfQSfRRfRRfSQfTPfUPfVOfW\ NfXNfYMfZLgZLg_Kg`JgaJgbIgcHgdHgeGgfFgfFggEghDgiDg\ jCgkBglBgmAgmAhkBhjBhiBhhChgChfCheChdDhcDhbDhaDh`E\ h_EhZEiYFiXFiWFiVFiUGiTGiSGiRGiQHiPHiOHiNIiMIiLIiK\ KjJMjIOjHQjGSjFUjFWjGYjH_jIaiJchKegLgfMieNkdOlcOmb\ PmbQnaRn`So`To_Up`UpaUq_UpaVqbWqcXqdYqfZqh`qkbrmdr\ ofrqhrsjrulrwmrpimiemcbmXZmRWnKSjEPf7Lb0HZ1IZ2IZ2I\ Z3IZ3IZ4I_5I`5Ia6Ib6Ic7Id8Ie8If9Ig9IhAIiBJjCKkDLmE\ MoFNqGOsHPtIQuJRvKSwLTwLTwLTwLTxKTyKTzKTzKTzJTzJTz\ JTzITzITzITzITzHTzHTzHTzGTzGTzGUzGUzFTzFTyFTxETwET\ vETuETtDTsDTrDTqCTpCToCTnDUmCTlCSkCRjCRiBQhBPgBOfB\ OeANdAMcAMbALa9K`9J_9JZ9IY8HX8HW8GV8FU7ET7ES7DR7CQ\ 6CP6BO6AN69M59L58K57J36I57H67G56F45E34D23C12B01A00\ 9008007006005004003002001 } frm:FinDivBrot-2 { ; Jim Muth z=(0,0), c=pixel, a=-(real(p1)-2), esc=(real(p2)+16), b=imag(p1): z=(b)*(z*z*fn1(z^(a)+b))+c |z| < esc } ; END PARAMETER FILE========================================= ; ; ; ; ; _______________________________________________ ; Fractint mailing list ; Fractint@mailman.xmission.com ; http://mailman.xmission.com/cgi-bin/mailman/listinfo/fractint ;