I have a problem here.
I would like to add an alpha layer, following an object in the original video source, but it is often obscured and hidden by stuff while the 'camera' moves. Since the movement of the 'camera' is extreme, it's impossible to track the same point for the whole scene, so I thought to use multiple trackings applying them to multiple nulls, so that duplicating and 'trimming' the alpha layer I could be able to parent it effectively to every tracking. (One 'cut' to the first one, the second to the 2nd null and so on)
The problem is that when I parent the second part of the alpha it also "achieve" the position of the null, being it tracked to a different point of the original source, forcing me to play around with it's anchor point and making this action extremely dangerous, risking to make the movement 'glitch' or acting like a drop-frame. Is there anything I can do to parent multipe nulls to indeed multiple layers (being duplicates of the same), but making only the tracking affect it? Is there something important I'm missing about AE?
Sorry for the confusionary english, with professional video editing grammar/vocabulary I have some issues, but I thank everyone in advance for any given help.
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