10 Replies Latest reply: Apr 26, 2013 5:50 PM by Matthew Marshall1
jkim0272 Level 1 Level 1



I'm using FCPX 10.0.6 and have been having this problem since I use this version.

When I give motion to a picture, like, moving from left of picture to right, and I want it to move in straight motion, I ctrl+click the keyframe to set it to linear.

But, it still moves in curve motion.


Does anyone know how to not to move in curve motion?


Thank you.

Final Cut Pro X
  • Luis Sequeira1 Level 6 Level 6

    It should work.

    If you are seeing a curve then you most likely have  more than two keyframes set. Did you change them all to linear?

  • jkim0272 Level 1 Level 1

    Yes, it happens when I have numbers of keyframes. and yes, I did change all of them to linear.

    It sometimes works when I put exact number in parameter but it always happens when I drag a picture or video to add a keyframe.


    My co-worker says it could be bug but I don't know. I don't see anybody here having a same issue.

  • Studio Engineer Level 2 Level 2

    I do this a whole lot... I'll go to the beginning of the clip, set a KF and then to the end of the clip and set another.

    Unless I right-click the clip and choose some ease function or drag the curve, there are absolutely no curves applied to the movement of the clip...


    If in the keyframe editor there is no visible curve but just a linear line, how do you manifest that the clip moves with a curve... Is it THAT visible ?

  • jkim0272 Level 1 Level 1

    Yes, it is. That's why this really bothers me so much.


    Ok, then in the case when you add more than two transform effects, does the clip move in linear line as well?


    I mean, I'll add a keyframe on position and scale at the beginning of the clip and after a second later from the beginning, I'll add another keyframe as I change the scale and position of the clip. Then, when the clip moves from first keyframe to the next one, it moves in curve even if I set both keyframes to linear.


    Well, yeah, it happens when I change more than one transform effect at a time.


    Does this happen to you?

  • Studio Engineer Level 2 Level 2

    what do you mean by "in curve" ?

    Are you referring to a logarithmic motion or and actual curve as in a square supposed to move from left to right but moves upward at the same time as to the right ?

  • jkim0272 Level 1 Level 1

    Yes, I meant logarithmic motion. When the clip moves from first position to the next, it doens't change its velocity but when the scale changes, it accelerates on the move. I think this makes it moves in curve instead of linear.


    Hope this explains well enough...

  • Studio Engineer Level 2 Level 2

    if your KF Curves are NOT set to ease and you have not adjusted the handles out of a linear form... I have no explanation to what is happening. I do not have those problems. When set to linear nothing moves logarithmically here..



  • jkim0272 Level 1 Level 1

    I got the answer!

    Just tried out adjusting the handles and it works!!


    Thank you so much!

  • Studio Engineer Level 2 Level 2


  • Matthew Marshall1 Level 1 Level 1

    This is a bug.  It caused me hours of frustration, until I came upon this video, that clearly documents the problem and the (somewhat absurd) solution: