Please consider using http://lygia.xyz instead of copy/pasting this functions. It expand suport for voronoi, voronoise, fbm, noise, worley, noise, derivatives and much more, through simple file dependencies. Take a look to https://github.com/patriciogonzalezvivo/lygia/tree/main/generative
float rand(float n){return fract(sin(n) * 43758.5453123);}
float noise(float p){
float fl = floor(p);
float fc = fract(p);
| #ifndef NOISE_SIMPLEX_FUNC | |
| #define NOISE_SIMPLEX_FUNC | |
| /* | |
| Description: | |
| Array- and textureless CgFx/HLSL 2D, 3D and 4D simplex noise functions. | |
| a.k.a. simplified and optimized Perlin noise. | |
| The functions have very good performance | |
| and no dependencies on external data. |
| # Unicode character frequencies computed on dumps of all wikipedia languages (288) | |
| # Dumps downloader: https://github.com/aesuli/wikipediatools | |
| # Html converted to plain text: https://github.com/aesuli/wikipedia-extractor | |
| # | |
| # Andrea Esuli | |
| # http://www.esuli.it/ | |
| # | |
| #'char'<tab>ord(char)<tab>freq | |
| ' ' 32 6098823328 | |
| 'e' 101 3226481962 |