Speed 0 => Normal
Speed 0.25 => Slow Parallax
Speed 0.5 => Parallax
top
left
bottom
right
Speed 0.75 => Fast Parallax
Speed 1 => Reveal
Speed 0 => Normal
Speed 0.25 => Slow Parallax
Speed 0.5 => Parallax
Speed 0.75 => Fast Parallax
Speed 1 => Reveal