linking a pan node to a a rotoshape node
by Scott Hathaway
on
Jun 12, 2009 at 8:46:51 pm
So I'm doing some green screen work on an old project to get more acquainted with Shake and I have a really simple question (I believe). I did a quick rotoshape node on a moving image that I now want to use as a path for another layer. In this example I want to track some tv static underneath the footage of a robot face using the keyframes from the rotoshape node I've already created, which was used as the garbage matte for the key. I get the impression this is an expression, but do not know how to implement expressions well. How can I do this? Thank you all!
Re: linking a pan node to a a rotoshape node by Burt Hazard on Jun 22, 2009 at 12:21:06 pm
You're right that Shake should have this type of functionality, but it doesn't in that you're not actually seeing the Rotoshapes' center coordinates in the parameters. But an easy thing to do would be to track your robot face then apply the tracking data to your rotoshape, etc.
(Actually linking expressions are fairly easy. In general use "Node Name"."Parameter" like Move2D.xPan in the target node's xPan parameter...check out chapter 17 in the manual.)
