Function simdnoise::simplex::fbm_2d

pub unsafe fn fbm_2d<S: Simd>(
    x: S::Vf32, 
    y: S::Vf32, 
    lac: S::Vf32, 
    gain: S::Vf32, 
    octaves: u8, 
    seed: i32
) -> S::Vf32