Todays post is another outside=fmod spiral. Yup it's a modest gray spiral but I like it. Speaking of spirals thanks to Lee H. Skinner for pointing out the link for the thumbnail for Apr.22's Bubble Spiral was broken and wouldn't download. It's those details. URL for today's finished product-http://maxitersfractalfollies.blogspot.com Coming up next --info!!! fract069.gif { ; sort of spiralish ; blank ; calctime 0:09:20.40 ; created Apr 23, 2010 ; Fractint Version 2004 Patchlevel 9 reset=2004 type=formula formulafile=_g.frm formulaname=GenInvMand_rjr function=atanh/atan/one/log center-mag=1.597/1.11185/13.33333 params=-0.9226050599688711/-0.3284096804712058/-0.3594775231177709/-0.38\ 85921811578723 float=y maxiter=1500 inside=0 proximity=0.8 outside=fmod colors=000000111222333333444555666777777888999AAAAAABBBCCCDDDDDDEEEFFFGG\ GHHHHHHIIIJJJJJJKKKLLLMMMMMMNNNOOOPPPPPPQQQRRRRRRSSSTTTUUUUUUVVVWWWWWWXX\ XYYYYYYZZZ______``````aaabbbbbbcccddddddeeeeeeffffffggghhhhhhiiiiiijjjjj\ jkkkkkkllllllmmmmmmnnnnnnoooooopppppppppqqqqqqrrrrrrrrrssssssssstttttttt\ tuuuuuuuuuvvvvvvvvvwwwwwwwwwwwwxxxxxxxxxxxxxxxyyyyyyyyyyyyyyyyyyyyyzzzzz\ zzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzyy\ yyyyyyyyyyyyyyyyyyyxxxxxxxxxxxxxxxwwwwwwwwwwwwvvvvvvvvvuuuuuuuuutttttttt\ tsssssssssrrrrrrrrrqqqqqqpppppppppoooooonnnnnnmmmmmmllllllkkkkkkjjjjjjii\ iiiihhhhhhgggffffffeeeeeeddddddcccbbbbbbaaa``````______ZZZYYYYYYXXXWWWWW\ WVVVUUUUUUTTTSSSRRRRRRQQQPPPPPPOOONNNMMMMMMLLLKKKJJJJJJIIIHHHHHHGGGFFFEE\ EDDDDDDCCCBBBAAAAAA999888777777666555444333333222111000 } frm:GenInvMand_rjr { ; Jm Collard-Richard and rjr 2k03 c=z=1/pixel+p1: z=fn1(z)*fn2(z+p2)+fn3(fn4(c)) |z|<=4 ;SOURCE: fractint.frm } _________________________________________________________________ Videos that have everyone talking! Now also in HD! http://go.microsoft.com/?linkid=9724465
Roger Alexander quoted a formula in fractint.frm GenInvMand_rjr { ; Jm Collard-Richard and rjr 2k03 c=z=1/pixel+p1: z=fn1(z)*fn2(z+p2)+fn3(fn4(c)) |z|<=4 ;SOURCE: fractint.frm } ; Notice that fn3(fn4(c)) is a constant. In a re-entrant function, constant input yields constant output, ; so the formula can be sped up quite a bit like this: GenInvMand_rjr { ; Jm Collard-Richard and rjr 2k03 z=1/pixel+p1, c=fn3(fn4(z)): z=fn1(z)*fn2(z+p2)+c |z|<=4 ;SOURCE: fractint.frm }
On 2010-04-26 03:30, Jay Litwyn wrote:
Roger Alexander quoted a formula in fractint.frm
GenInvMand_rjr { ; Jm Collard-Richard and rjr 2k03 c=z=1/pixel+p1: z=fn1(z)*fn2(z+p2)+fn3(fn4(c)) |z|<=4 ;SOURCE: fractint.frm }
; Notice that fn3(fn4(c)) is a constant. In a re-entrant function, constant input yields constant output, ; so the formula can be sped up quite a bit like this:
GenInvMand_rjr { ; Jm Collard-Richard and rjr 2k03 z=1/pixel+p1, c=fn3(fn4(z)): z=fn1(z)*fn2(z+p2)+c |z|<=4 ;SOURCE: fractint.frm }
Thanx for the input. I modded this formula ages ago using the monkey at the keyboard approach-throw enough, something sticks! My grasp of fractal math is shaky at best and I will rewrite the formula before I use it the next time. Cheers, Roger
participants (3)
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Jay Litwyn -
maxiterfractal＠hotmail.com -
Roger Alexander