-
Junk mattes
Hello
After seeing Aharon Rabinowitz’s podcast on super tight junk mattes I have been using them with some success. Unexplicably in my last project, when I autotrace my subject the masks trace the upper half of the body perfectly, and arbitrarily “cut” my person with a straight line at around the waist, in such a way that I only have the top half masked.It is quite strange because when I preview the mask in the autotrace settings the mask covers everything, and even leaves the whole body traced on the first frame once I hit OK, but then cuts the body in half for all subsequent frames!!!!
I really don’t know what’s going on, it hadn’t happened before.
Any suggestions?
Lili
-
2 Replies
-
Actually, the line cuts through the person quite arbitrarily, half way across her jeans, and the key really does only keep the background out in all the frames, only the mask that “cuts off” in a straight line at a certain hight. Could ir have anything to do with the fact that I’ve rotated the footage 90 degrees? It’s the only thing I did other than changing the contrast and keying.
It is quite weird…
-
[lilireed] “…when I autotrace my subject the masks trace the upper half of the body perfectly, and arbitrarily “cut” my person with a straight line at around the waist…”
This same thing happens to me now that ive switched to cs4 and HiDef.
If any one knows why it would be a big help.
Reply to this Discussion! Login or Sign Up