On Sun, 2004-02-15 at 05:27, Vortex Swirling wrote:
Edwin,
Any tips on how to translate one of the .fct files so that that the picture can be generated in Fractint with one of Jim's formulas?
I'd just love to generate Kandy Pop and rotate the palette for fun!
I'm afraid that's fairly tricky in general. For this particular image, it's not too bad. First off, I've lost the original .fct file for that image (oops). I do recall, however, that it's just a plain Mandelbrot rendered with Fractint's 4zebbowx.map with a large bailout value (around 8000). If you zoom into any fairly detailed part of the Mbrot using this map you'll see something fairly similar (see attached .par as an example). The one major problem is that the image on my site is rendered in 24-bit using a palette smoothing technique, so you won't get quite the same effect in Fractint. For other images, which actually aren't straight Mandelbrot or Julia sets, you'd need to write a Fractint formula which adjusts both the initial starting position *and* the #pixel value for each point on the screen, and calculate the appropriate values to use based on the "xy", "xz" etc angles. This is possible but involves matrix multiplication so would be quite painful in a formula file. Regards, -- Edwin