-float noise2d_perlin_abs(float x, float y, int seed,
- int octaves, float persistence, bool eased=true);
-
-float noise3d_perlin(float x, float y, float z, int seed,
- int octaves, float persistence, bool eased=false);
-
-float noise3d_perlin_abs(float x, float y, float z, int seed,
- int octaves, float persistence, bool eased=false);
-