Function simdnoise::scalar::turbulence_4d

pub fn turbulence_4d(
    x: f32, 
    y: f32, 
    z: f32, 
    w: f32, 
    freq: f32, 
    lacunarity: f32, 
    gain: f32, 
    octaves: u8
) -> f32

Get a single value of 4d turbulence.