I've just seen this video and immediately controlling VI x-fades came to my mind. What do you think?
http://vimeo.com/32365220
Cheers,
Alberto
188,674 users have contributed to 42,622 threads and 256,575 posts.
In the past 24 hours, we have 5 new thread(s), 29 new post(s) and 42 new user(s).