1. It's too easy.
2. It's too hard.
Unhelpful, that. The easiness is simply that once you learn the basic technique, there's nothing at all to stop you from dropping any image, or dozen images, into any fractal. This results in both a sort of whee, fun! effect, and the usual vague disquiet common to fractal art, the part that says this is way too easy and fun; I'm just sitting here pushing buttons, it can't possibly count as anything serious.
The hard part, though, is that you have to be careful about which pictures you use. They need to be fairly high resolution, even for a smallish screen-sized render, because the distortions introduced by the orbit trapping tend to magnify certain bits enormously, and the resulting pixelation can be quite noticeable. Once you have your high-resolution image, it has to be very carefully cleaned up in Photoshop (or equivalent) to get the alpha channel tidy. Even if the pixelation isn't a problem in the main part of the imported image, the edges can start looking ragged very quickly.
So in addition to needing some substantial background in using Ultra Fractal, you also need a reasonable familiarity with some graphics editor. And this is even before getting into questions of the aesthetic merit of the resulting conglomerations. Fractals are inherently complex things, and adding photographs to them is a whole new and different kind of complexity. A photograph of a single-colored object is never a single color; it has highlights and shadows and reflected colors from the surrounding environment, it has variations introduced by the lighting and noise from the film grain or CCD. It's made up of hundreds or even thousands of variations on the general palette, in shadings that may or may not be smooth. By comparison with photographs, I've been finding it kind of amazing to realize just how smooth and orderly fractals really are. In trying to combine the two, keeping the look and feel of the whole image consistent becomes more difficult because the intrinsic textures are so dissimilar.
I worry that the easy factors combined with the hard factors will produce an end result of many pictures made with little attention to the technical details. Heh, and having typed that, I realize that it's a perfectly good description of all fractal art, and indeed most digital art in general. Easy to do, not necessarily easy to do justice to. I should probably stop worrying about it, and just keep experimenting. Because, hey, whee fun!
I can follow up yesterday's introductory noisemaker with a full orchestral performance on the
Illuminated Musical Contraption
It may be worth pointing out that I have actually kept this one quite controlled. The color palette is restricted to a blue-orange-yellow split complement, and the overall composition is structured around a couple of major vertical arcs. However, in spite of my attempts at restraint, the effect is more or less completely ZOWIE BLAMMO, and the thing looks it should play a selection of Raymond Scott's greatest hits.
