Re: Multi-layered video effects by Graham Bernard on Sep 26, 2012 at 6:47:28 am
If you are referring to 1:14, then that is purely a graphic with a transparent background around the man. Transparent information is stored in what's called the "Alpha" channel. If you have graphics that make use of Alpha channels - I use PNGs - then you'd be good to go. Now, that's the purely Transparent background taken care of.
The "other" instances of where individuals are being seen "overlaid" , from what I can make out are purely cross fades.