singlePerlinFractalBillow3 method
Implementation
double singlePerlinFractalBillow3(double x, double y, double z) {
var seed = baseNoise.seed;
var dx = x;
var dy = y;
var dz = z;
var sum = baseNoise.singlePerlin3(seed, dx, dy, dz).abs() * 2.0 - 1.0;
var amp = 1.0;
for (var i = 1; i < octaves; i++) {
dx *= lacunarity;
dy *= lacunarity;
dz *= lacunarity;
amp *= gain;
sum +=
(baseNoise.singlePerlin3(++seed, dx, dy, dz).abs() * 2.0 - 1.0) * amp;
}
return sum * fractalBounding;
}