Ah, I was a bit unclear on what the Alt motion source was about, but that seems quite clear, thanks.
Basically, what I’m trying to research is this.
I’m working on a film restoration, and I have two copies of the same film. One looks great, but the film’s been broken and it’s missing a few frames here and there. The other is a poor multigeneration copy, but is complete.
Cutting the missing frames into the good copy looks very distracting, so I wondered if Twixtor could be used to create new frames using the poorer frames as reference – those frames of course having the exact geography required.
So it seems the answer’s no then, I need to draw on splines and stuff.