silverscape23

Q: Rotate object/spin on its central Axis in FCP

I have tried using rotation keyframes etc to make a steering wheel turn around. However, whenever I do this it seems to draw it an elliptical orbit; not around its center.

 

Is there some simple way to make achieve this without having to go into Motion etc.

MacBook Pro, OS X Yosemite (10.10.3)

Posted on Aug 3, 2016 9:33 AM

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Q: Rotate object/spin on its central Axis in FCP

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  • by Tom Wolsky,

    Tom Wolsky Tom Wolsky Aug 3, 2016 9:55 AM in response to silverscape23
    Level 10 (118,086 points)
    Apple TV
    Aug 3, 2016 9:55 AM in response to silverscape23

    MMove the anchor point so it's in the center of the steering wheel and make sure the anchor point isn't keyframed or it will appear to wobble.

  • by Karsten Schlüter,

    Karsten Schlüter Karsten Schlüter Aug 3, 2016 10:03 AM in response to silverscape23
    Level 7 (32,668 points)
    Video
    Aug 3, 2016 10:03 AM in response to silverscape23

    and to illustrate Tom's advice (beat by the minute, those  pics waste too much time in the making... )

     

    Bildschirmfoto 2016-08-03 um 18.52.10.png

    when you look closely:

    the anchor point of the clip doesn't match the anchor point of the steering wheel (Benz is kind enough to mark it with a star...)

     

    after adjustment, the wheel perfectly turns:

     

    steermov.gif

  • by silverscape23,

    silverscape23 silverscape23 Aug 26, 2016 8:36 AM in response to silverscape23
    Level 1 (4 points)
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    Aug 26, 2016 8:36 AM in response to silverscape23

    Excellent thank you Tom and Karsten - that worked!

     

    I have a follow up question related to make an logo spin outward in a circle matching the spin of a record.

     

    See example: https://vine.co/CHANEL

     

    I have tried multiple variations of using the anchor points, moving x and y etc but there does not seem to be an intuitive way to do this. My logo is rectangular so the orbit is very noticable.

     

    Any feedback?

  • by Tom Wolsky,

    Tom Wolsky Tom Wolsky Aug 26, 2016 9:42 AM in response to silverscape23
    Level 10 (118,086 points)
    Apple TV
    Aug 26, 2016 9:42 AM in response to silverscape23

    Hard to do in FCP. Because of the angle the motion looks elliptical. Might be able to do it by animating the anchor point but it would be tricky. Maybe in Motion.

  • by silverscape23,

    silverscape23 silverscape23 Aug 26, 2016 10:51 AM in response to Tom Wolsky
    Level 1 (4 points)
    Video
    Aug 26, 2016 10:51 AM in response to Tom Wolsky

    Ouch, I was afraid you would say that, Tom.

     

    Really don't want to have to into Motion unless I really, really have to.

     

    Anchor point manipulation seems to just move it vertically and horizontally, not elliptically.

     

    No more "clever stuff" ; )

     

    Thanks

    Again

  • by silverscape23,

    silverscape23 silverscape23 Aug 26, 2016 12:07 PM in response to silverscape23
    Level 1 (4 points)
    Video
    Aug 26, 2016 12:07 PM in response to silverscape23

    I figured out a weird workaround:

     

    1. Place a sphere/circle beneath logo

     

    2. Make both into compound click

     

    3. Rotate on axis as per beginning of this thread

     

    4. Then, go back into compound clip and 'hide' the circle.

     

    5. Overlay compound click on rotational element.

     

    Its not perfect; there is a slight spiral effect that appears to take place once you move the clip around the scene but you can 'jimmy' it.  Very messy but I guess this is one way to do it.

  • by Karsten Schlüter,

    Karsten Schlüter Karsten Schlüter Aug 26, 2016 1:11 PM in response to silverscape23
    Level 7 (32,668 points)
    Video
    Aug 26, 2016 1:11 PM in response to silverscape23

    silverscape23 wrote:

    ...follow up question related to make an logo spin outward in a circle matching the spin of a record.

     

    Any feedback?

    trouble is, FCPX offers, out of the box, only rotation around z-xis, we would need the x-axis to 'lay down' a layer.

     

    But, basically, I would do it like you:

    using a circle for reference, rotate, done (here: in MotIon with a few clicks)

     

    eclipse sm.gif