I uses this to control the overly of the image and also the video. I wanted to blend the image and my face as much as possible. I also found out that some lighting appear on my face would also effect the outcome. When I use a piece of paper to block it, it become more natural.
playing around with this because the effect literally presents how I feel towards max. I have been quitting max a lot of time ever since I work on this patch. It will reply some frame and creates the lagging effect.