Inspiring

Answered

Movement Between Keyframes

Forum|Forum|8 years ago
October 31, 2017
6 replies
46113 views

I'm having issues with my object changing position and 'twitching' in-between two position keyframes.

I understand this is a common issue as I get it a lot, normally I just set the keyframe interpolation to linear and that sorts it, but for some reason that isn't working this time around.

Thanks.

unintentional movement between keyframes

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Correct answer SarahForey

I'm having issues with movement in-between keyframes still, but a Right Click - Keyframe Interpolation - Linear sorts it fine like it always does. I'm not sure what was different when I did this animation (The one on the feed).

zacharyd93502627

Participant

GOT IT!!! Took months to figure out, but I finally got it!! Was just doing video editing work for a temp gig I have, but I found the solution on accident and now strongly recommend sharing this info on every Adobe forum related to this topic! I know so many have this problem, and I'm glad to share what I found.

To be certain - the problematic effect in question is the strange movement between keyframes that create curvy or otherwise unplanned movement, and super frustrating because you try to change just one axis of motion and suddenly you have this wild movement you didn't plan for.

The solution is to highlight all affected frames, and then right-click before selecting "Spatial Interpolation" and select "Linear" - you'll have steady keyframe movements immediately.

I can imagine for some special effects work where one might choose a different S.I. for their keyframes, but for general purposes - and I'm in the afflicted population unable to find this stupidly simple solution for ages LOL - Linear will solve this problem.

P.S. - this solution is for Premiere. In After Effects, a similar solution is found on right-clicking of keyframes, but the option is listed as "Keyframe Interpolation", where you will find the same options of Linear, Bezier, etc.

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bar32172020h1hc

Participant

I tried it, but it didn't work for me 😞

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timothyv23

Participant

Similar issue, I figured it was just a curved keyframe between both keyframes that were at the same position points. It sort of reminded me of anchor points when creating masks in AE. Got me thinking, what if they are just converted points by the system thinking that's what we want because of the bezier, so I clicked and held on the Pen Tool to click on the Convert Vertex Tool, zoomed into those points and clicked on those points within the preview panel and it got rid of the "twitching" and/or "moving" problem.

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defaultl8ykq8dr7s8n

Participant

I'm having the same problem and seems like it's not solvable though i tried everything.

Problem : shape2 is connected to shape1. Shape1 has two roational keyframes whoch means that shape2 ''has moved'' without keyframes. When i put two rotation keyframes on shape2, it acts like there is also a position keyframe inbetween. Meaning, it's doing a random arc although there is nothing in the timeline/graph editor nor a keyframe causing or indicating it.
What could be the problem?
Interpolation-Linear is not fixing it, toggle hold is making it even worse!!
Could anyone be able to help?

Kevin-Monahan

Community Manager

Still having this issue HarryE? Please let us know.

Thanks,
Kevin

Kevin Monahan - Sr. Community & Engagement Strategist – Pro Video and Audio

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SarahForeyAuthorCorrect answer

Inspiring

I'm having issues with movement in-between keyframes still, but a Right Click - Keyframe Interpolation - Linear sorts it fine like it always does. I'm not sure what was different when I did this animation (The one on the feed).

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aartika-fractal-art

Participant

I was having this problem too, which was still persisting even after Keyframe Interpolation was set to Linear. The actual problem was that one or two keyframes had become duplicated by accident when adjusting parameters, i.e. when the current time indicator wasn't lined up exactly with the keyframe being edited, a new keyframe was created, instead of the existing one being edited. Because they were so close in position to other it wan't obvious that there were two keyframes in the same place. Once all duplicates were deleted the jittery movements stopped.

Roei Tzoref

Legend

learn about this issue here:

http://youtube.com/watch?v=rLdBTzkMa7k

if this doesn't solve your problem show us full screenshots and press UU so we can see the modified properties.

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SarahForeyAuthor

Inspiring

Here are the first three frames, at the moment it's just meant to fall off, i'll add the rotation and everything in later, but as you can see in the second frame after the first position keyframe it jumps up. After that, it skips back down to where it should be.