Just discovered that a huge range of complex colour gradients are easily achieved by doing a 50/50 color-lerp between two colours in HSB mode. Hue is affected by height and a range parameter. Just 4 adjustable sliders gives you a lot of scope, and thats without some of the random variance I’ve used in other gradient algorithms.
I’m mostly posting to my research tumblrs: pfbot.tumblr for bookmarking visual culture, and algopop.tumblr for discourse on algorithms in culture. New personal work due later :)