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Procedural Textures with Hash Functions
A visual exploration of a family of 2D hash functions for procedural texturing, where a simple quadratic equation produces amazing variety as the parameters are varied.
The other day, I needed a simple hash function that maps $(x, y)$ coordinates to a colour, and found a straightforward equation that ended up being astoundingly rich. I don't have much of an explanation, except that the iso-hash is $x\,y = \textit{const}$, producing a family of reciprocal curves $y\propto1/x$, which seems to match the black and blue lines that form a pleasing spiral. And if you consider yourself part of the extremely limited target audience (who want to learn an assembly-like language just to play a short web game), perhaps check it out: C-crits.
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