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Matching AE camera rotation with footage of rotating object ?
Hi all,
I have studio footage of an object shot on a lazy susan rotating one full rotation on the timeline. I’d like to know if there is an expression that would turn number of frames into degrees of rotation of the camera OR percentage travelled along a spline (That way I could insert a circle spline as the path on the XZ plane). Hope this is clear
Cheers,
Andy -
4 Replies
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I have no idea what you are talking about… What’s wrong with just pasting the mask shape as a keyframe and the adjusting the timing manually? Why would you want an expression for that?
Mylenium
[Pour Myl
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I’m not sure exactly what you’re asking, but wouldn’t you want to do it the other way around? For example, you could put a null at the same position as your footage and make it the parent of the camera, then you would rotate the null to move the camera in a circle. You could time-remap the footage and use an expression to pick which frame to show based on the rotation of the null. Then auto-orient the footage towards the camera.
Or am I completely on the wrong track?
Dan
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Dan’s solution makes a lot more sense than trying to rotate the camera based on what frame of the movie is playing. You couldn’t rotate the camera based on the footage because the lazy susan in the footage would have to rotate at exactly the same speed the whole time for it to work.
~Colin -
Thanks for all your responses..
I was unnescessarily complicating things.. Should be able to figure it our with Dans technique.
Cheers,
Andy
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