Ultra Fractal is a fractal generation and rendering software application. The program was the first publicly available fractal software which featured layering methods previously only found in image editing software. Because of this, the program has become popular for use in the creation of fractal art. Ultra Fractal is commercial software, but an evaluation version is freely available. The unregistered version creates watermarked renders. Ultra Fractal is raster based. The program works using a similar paradigm to Photoshop, allowing multiple layers to be combined using layer blending modes, transformations, and custom fractal formulas. Fractal formulas, coloring algorithms, and transformations may be written by users, and a large number of such formula files are available in a public formula database. Fractals may be copied from the interface and pasted as plain text into an email. There is a busy mailing list on which many users post their parameter sets. More information...
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