Crate noise_perlin

Perlin noise in 2D and 3D. Translated from the reference Java implementation at https://mrl.cs.nyu.edu/~perlin/noise/ and https://mrl.cs.nyu.edu/~perlin/paper445.pdf

Functions

perlin_2d

Returns the evaluation of perlin noise at position (x, y) This function does not allocate It uses the improved implementation of perlin noise whose reference implementation is available here: https://mrl.cs.nyu.edu/~perlin/noise/ The modifications are:

perlin_3d

Returns the evaluation of perlin noise at position (x, y, z) This function does not allocate It uses the improved implementation of perlin noise whose reference implementation is available here: https://mrl.cs.nyu.edu/~perlin/noise/ The only modification was the simplification of the function grad to avoid some code branches (but does not change the end result).