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Animation changes itself

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Bartek PawlikAnimation changes itself
by on Nov 17, 2015 at 11:27:54 pm

HI,

AE CS3, simple animation where I just animate position and size.
The whole one takes some 2 minutes and there are about 40 keyframes in it.
Now the magic happens...
In some point of my work (everytime in some different point) when I got back on timeline it turns out that keyframes don't remember its value, so "animation" changes itself.
Allready tried reloading footage, start over from the beginning, every time the same effect. It's like some "smurfs" changes position of footage (size is kept).

Has anyone idea whot is going on?

In 2 days I've got a deadline for this work...

Thanks for your help in advance.


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Dave LaRondeRe: Animation changes itself
by on Nov 17, 2015 at 11:40:01 pm

You're probably stopping the animation, then resuming it again at some point. You're seeing the notorious Boomerang Effect.

There are two ways to fix this:

1) On the INCOMING keyframe to the pause in animation, highlight the keyframe, right-click on it and use the Toggle Hold Keyframe command. You're done.

2) Play with the Bezier Path for that keyframe until it behaves as you want it to.

Dave LaRonde
Promotion Producer
KGAN (CBS) & KFXA (Fox) Cedar Rapids, IA


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Bartek PawlikRe: Animation changes itself
by on Nov 17, 2015 at 11:56:21 pm

Will test, but this is not Boomerang effect...
Object (comp 1920x1080) changes its position of few hundred pixels...

Anyway, thanks for tips


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Dave LaRondeRe: Animation changes itself
by on Nov 18, 2015 at 12:06:56 am

Changing position by a hundred pixels are so? Those Bezier Paths can do funny things.......

Dave LaRonde
Promotion Producer
KGAN (CBS) & KFXA (Fox) Cedar Rapids, IA


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Bartek PawlikRe: Animation changes itself
by on Nov 18, 2015 at 12:09:54 am

No Baizer interpolation... ONLY linear


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Dave LaRondeRe: Animation changes itself
by on Nov 18, 2015 at 12:15:47 am
Last Edited By Dave LaRonde on Nov 18, 2015 at 12:16:30 am

If the hold Keyframe trick doesn't work, it's time to start looking at how layers are parented together. There could be something amiss.

Oh, and check any expressions having to do with Position.

Dave LaRonde
Promotion Producer
KGAN (CBS) & KFXA (Fox) Cedar Rapids, IA


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Bartek PawlikRe: Animation changes itself
by on Nov 18, 2015 at 12:19:11 am

The problem is that it's REALY simple project.
One main comp with another comp (that one I animate) and ONE swf file inside. Also some sound layer and two solids. Nothing more...
Will let you know results, so far it is ok... but still don't know the reason.


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Daniel WaldronRe: Animation changes itself
by on Nov 18, 2015 at 2:48:41 pm

Can you post a screenshot of your timeline?


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Jon DoughtieRe: Animation changes itself
by on Nov 19, 2015 at 2:23:34 pm

I have had odd behavior occur sometimes because I had two adjacent keyframes and did not realize it. They would be only a frame apart. So unless I zoomed way in, I would only observe one keyframe.

System:
Dell Precision T7600 (x2)
Win 7 64-bit
32GB RAM
Adobe CC 2014 (as of 7/2015)
256GB SSD system drive
4 internal media drives RAID 5
Typically cutting short form from HD MP4 and P2 MXF.


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Bartek PawlikRe: Animation changes itself
by on Nov 19, 2015 at 8:47:51 pm

Thanks all of you for tips.
Still didn't find the reason of this strange behaviour.
I solved the problem creating everything in new file, this was less time consuming than figuring out this problem.

Thanks a lot for all posts!

PS. Jon, this was not what you sugested.


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