I have made a explanation/

I have made a explanation/guide as to how I achieved this effect. I recieved some questions about the process I used. So I made a guide and I am linking it here, hope this answers some questions people have.

Please not that this link contains a video clip from a movie rated PG-13, depicing a scene of violence, as this is a discussion of a visual effect depicting "killings" by a sword.
http://tyndanproductions.com/offtopic/cgsword.php