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I am following the tutorial

http://www.aryanwisdom.com/action/study/video-editing/blender-tutorial-overlay-a-video-of-a-head-onto-another-video/

I created a mask where an image will be walking through a door. It seems to work but the mask is active beyond the frames that it is used for. I need to keep using key frames to move the mask out of the frame. How do I limit the amount of frames a mask is active. Same for motion tracking as well.

Thanks Andy

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2 Answers 2

Reset to default
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You can keyframe the position of the mask at the last frame, and then advance one more frame and key a new position out of camera - and as long as you have no more keyframes on the mask after that, you should have no problem keeping it out of the way.

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  • $\begingroup$ It is frustrating one can't just "delete" the spline and key it in. $\endgroup$
    – mlt
    Commented Jul 9 at 20:36
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Add a color mix node, on the unconnected socket set the color to black. By animating the factor for the mix you can control the opacity of the mask.

enter image description here

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