private float[] ApplyRadialMask(float[] map)
{
var output = new float[map.Length];
for (int i = 0; i < map.Length; i++)
{
int x = i % HeightmapResolution;
int y = i / HeightmapResolution;
output[i] = map[i] * Gradients.RadialGradient(x, y, HeightmapResolution, HeightmapResolution);
}
return(output);
}
