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Motion 4 - why does my mask slip when I add video

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john paterson
Motion 4 - why does my mask slip when I add video
on Aug 16, 2011 at 12:53:28 pm

I have created a template in Motion 4 where I have an aeroplane cutout moving from left to right. Underneath I have a dropzone with a mask that moves underneath the plane so that the planes movement reveals the video. In Motion both layers stay in sync, however when I use the template in FCP7 and add video to the dropzone, the video first lags behind the plane then overtakes it. Why?


Jasper Paterson


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Stephen Smith
Re: Motion 4 - why does my mask slip when I add video
on Aug 17, 2011 at 1:46:01 pm

Is the new clip a different size then the drop zone? I find it is best to add a mask to a group that the clip/drop-zone is in because of this.

Stephen Smith
Utah Video Productions

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john paterson
Re: Motion 4 - why does my mask slip when I add video
on Aug 17, 2011 at 1:58:31 pm

no its exactly the same size as the composition, that's why I can't understand the timing error.


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