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Camera move overshooting then coming back…
I’m creating a simple camera move where the camera pulls back dramatically for 5 frames to reveal text and then slowly pulls back further over 1 second until the text is in its resting position. What’s happening is that half way thru the long more subtle move it begins to pull forward until it hits its resting position. Almost as if it overshoots it 15 frames in and then the next 15 frames it makes up for it by pulling back in.
Any advice would be great!
thank you
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4 Replies
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You probably do not have the spatial keyframe interpolation set correctly. View the camera path and see if the path has curves around the keyframe positions. If so, change to linear.
bogiesan
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I still get weird stuff happening with keyframes in AE.
Make 2 Nulls and attached the camera to them.
“Null Move 1” for the first one and then “Null Move 2” for the second move. Keyframe them independently, and then you get really nice blended motion with ease in/out. I use this all the time to get nice drifts and smooth motion going.
Nulls allow you to split out and control motion as separate “motions” while you work. Much easier to find problems and fix.
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This happens when there isn’t enough physical distance between the two positions of a camera move. The problem gets worse when the keyframes cover a short period of time, and when the transition is dramatic (such as a very fast camera pullback that suddenly becomes a slow drift like you are creating). With bezier keyframes After Effects will do whatever it takes to create smooth transitions between the keyframes, even if that means extending the motion path into a “loop” which is the overshooting you are seeing. Technically it’s correct bezier motion, visually not so hot.
The posts above are good ways to tackle the issue, and you can also correct it manually. Set the comp viewer to “side view” and zoom in to your camera at the time of the movement that is buggy. You will see the loop I described above, along with bezier handles for the camera path. By grabbing the bezier handles and adjusting their length and direction, you can get rid of the motion “loop” and engineer a smooth transition. This might not make much sense unless you are sitting in front of the app and follow along.
Brendan Coots
Splitvision Digital
http://www.splitvisiondigital.com -
I also found that selecting all your keyframes and changing their interpolation to linear got rid of the boomerang. Just select your keyframes, right-click on one, click Keyframe Interpolation, and change the Spatial Interpolation to Linear. This would probably have undesired effects on more complicated animations, but for pulling a camera straight back, it should do fine.
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