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Subtract value from all keyframes

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Jeremy Mullen
Subtract value from all keyframes
on Nov 24, 2010 at 7:34:50 pm

One of those things that feels like it has an easy solution...

I've applied tracking data to a layer's rotation parameter, and the whole layer is keeled over about 60 degrees. How can I use those keyframes but make a global adjustment by that value?

I've tried precomposing but other values are being controlled by expressions and precomping disconnects them. Expressions override the tracking keyframes. Simple way to subtract 60 degs from every keyframe?


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Jeremy Mullen
Re: Subtract value from all keyframes
on Nov 24, 2010 at 7:44:05 pm

Okay, sorry, Please disregard. I needed more coffee. Duh, select all keyframes, pull value slider. Morning!


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Todd Kopriva
Re: Subtract value from all keyframes
on Nov 24, 2010 at 8:59:50 pm

It seems that you found the simple answer. There are some more approaches listed for various situations here.

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Todd Kopriva, Adobe Systems Incorporated
Technical Support for professional video software
After Effects Help & Support
Premiere Pro Help & Support
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Dave LaRonde
Re: Subtract value from all keyframes
on Nov 24, 2010 at 7:44:27 pm

Easy peasy -- make a null, position it over the layer's anchor point, parent the layer to the null and rotate the null.

Dave LaRonde
Sr. Promotion Producer
KCRG-TV (ABC) Cedar Rapids, IA


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Matt Ratcliffe
Re: Subtract value from all keyframes
on Nov 24, 2010 at 11:23:59 pm

You could also add an expression to the rotation of value+60 if a clockwise correction is needed, value-60 if anti-clockwise.


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