Worley noise Worley noise is a noise function introduced by Steven Worley in 1996. In computer graphics it is used to create procedural textures , i.e. textures that are created automatically with arbitrary precision and do not have to be drawn by hand . Worley noise comes close to simulating textures of stone , water , or biological cells .The basic idea is to take random points in space and then for every location in space take the distances dn n th-closest point and use combinations of those to control color information. Randomly distribute feature points in space organised as grid cells . In practice this is done on the fly without storage. The original method considered a variable number of seed points per cell so as to mimic a Poisson distribution , but many implementations just put one. At run time , extract the distances dn n th-closest seed point. This can be done efficiently by visiting the current cell plus its neighbors. Noise W is formally the vector of distances, plus possibly the corresponding seed ids, user-combined so as to produce a color.
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