Worley's Cellular Textures

Given a set of random feature points, we can compute the distance from any point to the nearest feature point. Call this nearest-feature distance function . The function that returns the distance to the second nearest feature is , and the nearest-feature distance, . Cellular textures, Worley observed, can be generated from linear combinations of the first few . Adjust the weights of to with the sliders. Interesting results can also obtain using alternate distance metrics.