That's a really nice spiral and color mapping, Mike. I usually think most spirals are "ho hum" but this one is great -- probably because it has so many "arms" and such a gentle curve to each arm.. It also responded nicely to the anti-aliasing. Was it 5x5 anti-aliasing? (I'm guessing from the "_5" in the image's name that it was.) - Hal Lane ######################## # hallane@earthlink.net ######################## ------- Mike wrote ---------------------------- Author: Mike Frazier Date: 2011-09-10 16:26 -400 To: Fractint and General Fractals Discussion Subject: [Fractint] Down the Drain This fractal started with Jim Muth's FOTD for April 28, 1999. I added the central 32 arm interleaved spiral to the image by zooming in on a spiral in the original. I tried many color palettes before settling on this one with the sqrt mapping. It was hard to find a coloring scheme that didn't break up the long arms of the central spiral. If you continue to zoom deeper down the center of the spiral you will see the number of arms repeatedly double until you reach the minibrot at the center. Here is a link to an image: http://dl.dropbox.com/u/33642054/image/down_the_drain_640_5.jpg . . . --------------------------------------------------