When using the 'Fly Out Throw In' 3D effect animation, this option controls the distance by which the slide will appear to 'fly out' of the container. At a value of 1 the slide will move a distance equal to 100{bbackup_94402fb9ba80f392e0976ece85f92b2b876bfcaed8d83250cc06083f7139c7d9} of its own width / height. At 2 it moves a distance twice its own size, at 0.5 the distance will be half its own size, and so on.