Fyre is a tool for producing computational artwork based on histograms of iterated chaotic functions. Using a series of inputs, it can create beautifully complex designs and even tile-able backgrounds. This is based on the simple Peter de Jong map equations: x' = sin(a * y) - cos(b * x) and y' = sin(c * x) - cos(d * y). The resulting probability map is treated as a High Dynamic Range image. This software includes some image manipulation features that let you apply linear interpolation and gamma correction at the full internal precision, producing a much higher quality image than if you tried to create the same effects using standard image processing tools.