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I am trying to create some graphic matches on action (on either side of a transition, similar shapes are in the same place on the screen.

To accomplish this, I have an image with some targets which I would like to keep semi-transparent so that I can scale and move my footage underneath to precisely the right position.

I have considered pushing each clip into a separate plane on a separate screen, but I'm not sure how I would get a semi transparent overlay using this. Anyhow, it would be preferable to keep my edits within the VSE.

Any ideas?

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  • $\begingroup$ I'm not entirely sure what your asking. Would it work to adjust the Opacity in Properties panel > edit strip? $\endgroup$
    – gandalf3
    Commented Sep 12, 2013 at 22:32

3 Answers 3

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I figured it out. Go to Add > Effect Strip > Transform, then right click on the element that you want to transform (i.e. the x offset) and select Add Driver. Now you will be able to pan/zoom dynamically and edit this change with keyframes on the graph screen.

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Not all values in the VSE can be driven with drivers. I am glad that this worked however for those values. Also there is a great addon for GUI editing of Transform values in the preview window. Check out a demo and link to script at https://www.youtube.com/watch?v=IZpnkoEkY3E

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The current accepted solution will result in a lower resolution blurry image.

A better solution enable Image Offset for that video strip to have the video with a 1:1 pixel ratio (no re-scaling). Then adjust the offset X/Y and possibly add a transform effect strip to re-scale further.

Look at Rescaling in the VSE yields low resloution, blurry images.

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