Layers position drifting
by Rob Thomas
on
Mar 14, 2008 at 2:39:23 pm
This has happened to me on numerous occasions! So I have a logo that animates in and stays in the bottom right corner of the stage for the entirety of the animation. Upon reaching the end, it animates up to the center of the screen and then everything fades out.
[The Issue] During the animation, the logo slowly drifts left and right about 50+ pixels or so. The last "position keyframe" at the beginning of the animation is exactly the same as the starting "position keyframe" at the ending animation, so it shouldn't move! Ideas?? This is baffling me!
Re: Layers position drifting by Joseph Springer on Mar 14, 2008 at 3:16:44 pm
Check out the amchor point and see if there are keyframes set there, a good thing to do is select a layer and hit "u" or "uu" to see what changes have been done to that layer..
Re: Layers position drifting by Dave LaRonde on Mar 14, 2008 at 3:48:07 pm
[Rob Thomas]"During the animation, the logo slowly drifts left and right about 50+ pixels or so. The last "position keyframe" at the beginning of the animation is exactly the same as the starting "position keyframe" at the ending animation, so it shouldn't move! Ideas?? This is baffling me!"
You can fix this easily. Highlight the keyframe where the motion stops. Now right-click on it and navigate to Toggle Hold Keyframe. That's all there is to it.
You have created a combination Bezier/Hold keyframe/. The motion will stop smoothly and remain rock-solid. When After Effects encounters the next keyframe, the motion will begin again.
This works because you created two keyframes with identical position values. If the position value of one of the keyframes was different, the motion would instantly jump when it encountered the second keyframe, and then continue.
Re: Layers position drifting by Nate Hanson on Mar 14, 2008 at 3:58:24 pm
Is this a keyframe interpolation issue? Right-click on the keyframe in question and select Keyframe Interpolation. Then make sure the Spatial Interpolation is set to Linear.
Sorry to waste your time if that is not the solution.
Re: Layers position drifting by Rob Thomas on Mar 14, 2008 at 4:10:42 pm
I found the issue myself about 15 minutes after i posted this! It was a keyframe interpolation issue. It was set to roving, so I simply changed it to locked time and it behaves perfectly. Thanks for all the quick responses though!
