Activity › Forums › Adobe After Effects › Time stretch won’t stretch over 3 seconds, why?
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Time stretch won’t stretch over 3 seconds, why?
Steve Bentley replied 8 years, 1 month ago 2 Members · 36 Replies
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Ryan Elder
March 20, 2018 at 10:03 pmOkay thanks. But when I send the clip from Premiere into After Effects, AE shows the keyframes. The keyframes are exactly the same in AE as in Premiere. So it seems that AE can read the keyframes, unless there is a miscommunication between programs?
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Steve Bentley
March 20, 2018 at 10:09 pmI wasn’t aware you could so that (bring a premiere project into AE with animation keyframes intact – but again I don’t use premiere)
It wouldn’t surprise me that rotation didn’t come in because so few of adobe’s package play well together.
But then again if position and scale come in then rotation should too.
In Ae you can hit the attribute to light up all the keyframes and then hit copy. Then you can paste that data into a spread sheet or text doc. Perhaps you can do the same for premiere and then paste that data onto the rotation attribute in AE? Just make an initial keyframe in rotation in AE and paste the premiere rotation date on top of it. -
Ryan Elder
March 20, 2018 at 10:11 pmActually I looked it and it turns out rotation did come in. Sorry my mistake, I assumed it didn’t come, cause the motion blur wasn’t being applied. But the keyframes from rotation are there as well. AE though, for some reason, still makes the clip shorter, after I send it from Premiere, so I have to then use time remapping to make it longer.
Still trying to figure out why AE is making it shorter. It’s just this one clip for some reason that AE does that too.
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Ryan Elder
March 20, 2018 at 10:17 pmMaybe it’s just my eyes and I am not seeing the motion blur. Can you see it on the wheel?
https://www.youtube.com/watch?time_continue=8&v=VPG3F8zuVbU
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Steve Bentley
March 20, 2018 at 10:27 pmIt seems to be there on the perspective shot but not on the overhead shot. (the pegs that are real are blurred but your text is not)
The shortening of the layer may be due to the footage from premiere being a different FPS than the AE comp.
Check in the project footage and hit interpret footage under the file menu to see what fps AE thinks it is. It should match your comp fps or the footage will shrink or grow in time.
AE doesn’t really know about FPS. It works in discreet frames so its best if you can match one frame of footage to one frame of comp time.
Wanna post the project and I’ll have a look? Footage not required. -
Ryan Elder
March 20, 2018 at 10:31 pmOkay thanks, I might not be able to post the project for a while cause I would have to video record myself doing it which I do not have access to a steady camera right now for.
It could be a frame rate mismatch. Basically in Premiere, the wheel was only one frame, so I used the rate stretch tool to stretch the frame out into several frames to take up the length I wanted the wheel to run for. So it’s just one frame originally stretched to 4 seconds worth of frames. So not sure what the frame rate originally would be since it’s just one frame to count from.
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Steve Bentley
March 20, 2018 at 10:39 pmAh ok. The stretch tool might not be compatible with how ae does it.
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Steve Bentley
March 20, 2018 at 10:40 pmpost just the ae file? The footage will be missing but I’ll be able to tell whats going on.
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Ryan Elder
March 20, 2018 at 11:20 pmOkay thank you very much, but I’m not sure what you mean? Do you mean a video display of it, or the propery information of the file?
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Ryan Elder
March 20, 2018 at 11:24 pmI tried applying the motion blur again. Did it work now?
https://www.youtube.com/watch?v=wBSS_cLwGo4&feature=youtu.be
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