Callanfrommn

Q: layering a person over (moving)

I want to be able to make a portal effect in fcpx and i have the portal part down but i cant get the person to walk in front of the portal with out the portal going over that person. keep in mind i have two shots of the same thing only one is with the person walking towards the wall and one is with out. same goes for where the portal leads, as you know it has to end up somewhere and i need help making it some what realistic.

Posted on Feb 25, 2015 6:03 PM

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Q: layering a person over (moving)

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  • by Russ H,

    Russ H Russ H Feb 25, 2015 8:26 PM in response to Callanfrommn
    Level 7 (21,820 points)
    Quicktime
    Feb 25, 2015 8:26 PM in response to Callanfrommn

    Can you link us to an example of what you're trying to accomplish?

     

    Russ

  • by Luis Sequeira1,

    Luis Sequeira1 Luis Sequeira1 Feb 26, 2015 7:25 AM in response to Callanfrommn
    Level 6 (12,218 points)
    Mac OS X
    Feb 26, 2015 7:25 AM in response to Callanfrommn

    Let me see if I understand correctly: a person is walking towards a wall that is a "portal" and is supposed to vanish into this portal. Is that it?

    You have two almost identical shots, one with the person, one without - presumably you used a tripod, so apart from the person the two shots should nearly match.

     

    If this is what you want, you may be able to achieve a decent enough result without difficulty.

    Here are two easy ways you may be able to achieve this:

    1) Put the shot with the person above the one without. As the person approaches the wall, turn opacity down on the top clip

    2) Put the two shots next to each other on the timeline and use a cross dissolve between them.

     

    You can use the same techique for the people coming out the other side, mutatis mutandis.

  • by Luis Sequeira1,

    Luis Sequeira1 Luis Sequeira1 Feb 26, 2015 7:46 AM in response to Luis Sequeira1
    Level 6 (12,218 points)
    Mac OS X
    Feb 26, 2015 7:46 AM in response to Luis Sequeira1

    I have just created a very quick test of this using my iPhone and the result, while not Hollywood worthy, was quite passable.

    http://youtu.be/TnBGAH1nnAY

    It was done in under 5 minutes, and

    if I were Steve Martin I might explain how to do this in under 5 minutes :-)

  • by Karsten Schlüter,

    Karsten Schlüter Karsten Schlüter Feb 26, 2015 8:14 AM in response to Callanfrommn
    Level 7 (32,713 points)
    Video
    Feb 26, 2015 8:14 AM in response to Callanfrommn

    you mean like that?

    http://youtu.be/3L-rrkyvApU

     

    or like that?

    http://youtu.be/tTGPfzqz1iA

     

    to apply the Portal to scenery, that is simple composit, use the Transform tool to adjust to perspective.

     

    That 'falling' effect is basically same as here described

    http://youtu.be/HJQAt8TCu-A

    (if you can stand this … Gatling Gun Of Words)

     

    Film Riot uses AE, but is no rocket science to do it with FCPX.

    Or Motion.