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Changing frame rate
OK, I admit it, bonehead move. I rendered an animation with 40 separate renders out of Maya. Loaded them into After Effects to composite them. When I was all done, I notice that the animation was only 24 seconds long, instead of the 30 seconds I was planning on.
I rendered them out as an .exr sequence with 720 fames at 24 fps, which should be 30 seconds long. But After Effect loaded them at 30 fps…thus the shortened duration.
So, how do I change the frame rate from 30 fps at 24 seconds to 24 fps at 30 seconds, without losing any of the 720 frames? I’ve tried changing the frame rate in both the compositions and in the render, but it just changes the frame rate without changing the duration, discarding the extra frames. So I still get a 24 sec. animation that is only 576 frames long.
Thanks.
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14 Replies
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I had already tried that. It left the composition (in fact, all of the compositions) at 30 fps. If I then try changing the frame rate of the composition, it changes the number of frames to 576, discarding the extra frames and leaving the duration at 24 seconds.
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I WANT the animation to slow down, it’s supposed to be 30 seconds, not 24 seconds. It shouldn’t get any choppier. There’s no difference between 30 seconds @ 24 fps and 24 frames @ 30 seconds. Maya renders out the same 720 frames.
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Actually, I’m using After Effects CS6
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So, this issue is still unresolved. I’m still looking for a solution. Seems to me like this should be uber-simple…I’m assume I’m not getting it because I’m not an editor or compositor.
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let’s try to break it down. look in your project window and highlight your footage. you will see the information about your sequence. see if it’s interpreted correct:
if it’s not – use interpret footage to interpret it correctly.
now drag in into a new composition icon. or right click -> new composition from selection
it will create a composition of the same duration and frame rate. now you can render it. assuming you don’t change your render settings to something else than “best settings”, it will render in the same frame rate.
import the sequence back to Ae and see it’s identical
try to find where in these steps is the problem and report back to us. maybe send some full screenshots.
Roei Tzoref
After Effects Artist & Instructor
♫ Ae Blues Tutorials -
I know that if I drag the correctly interpreted footage into a new composition, it will render correctly. I don’t want to do a new composition, I want to change the original composition. Actually, all 42 original compositions.
Correctly interpreted footage with frame rate set to 24 fps and 734 frames long.But that does nothing to fix the original composition, which is the problem. That’s the composition that is rendering at 30 fps.
Composition is still set at 30 fps and 734 frames long. How do I change this to 24 fps, so that the footage is still 734 frames long and plays for 30 seconds? When I change the frame rate in the composition to 24 fps, it changes to 587 frames long and still plays for 24 seconds, not 30.Perhaps I’m not explaining what I want to do very accurately.
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Where does the selected sequence read 30 seconds? The only info I see on the selected sequence is at the top of the project pane.
Is this where you’re talking about?
All I can see is the title of the sequence, the size (1920 x 1080), the number of frames (00734) and the frame rate (24.00 fps). Where is the duration?
BTW, my copy of AE CS6 is 11.0.4.2
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OK, I figured it out. I needed to change the project settings from “frames” to”timecode.”
So, yes. The selected sequence is properly interpreting the frame rate and it DOES read 30 seconds long. And if I drag the selected sequence onto the Make Comp icon at the bottom of the project pane, it DOES create a composition that is 30 seconds long.
As I’ve already stated.
How does this help me with the original compositions?
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[Lance Hitchings] “Composition is still set at 30 fps and 734 frames long. How do I change this to 24 fps, so that the footage is still 734 frames long and plays for 30 seconds? “
I see. btw I accidentally send the wrong screenshot. oh well.
if you want to change the composition frame rate you do that in the composition settings
so if you change it, you now will have an interpreted correctly sequence in the same frame rate composition.
Roei Tzoref
After Effects Artist & Instructor
♫ Ae Blues Tutorials -
I’m supposed to deliver the project to the client today. The composition has 32 sequences of rendered footage and 40 compositions. It has taken me two weeks to build the composite, so you can understand why I don’t want to start over from scratch.
Allow me to re-state my dilemma. I have a finished composition that is 720 frames, and a duration of 24 seconds at 30 fps. I want a composition that is 720 frames with a duration of 30 seconds at 24 fps.
I would think that this would be a simple change to make, given that both animations use the same number of frames.
The assumption that I can’t figure out what’s wrong is erroneous. I know exactly what’s wrong. I made a bonehead move when I originally imported the footage.
I just can’t figure out how to fix it. I would think that AE would have a simple mechanism for changing the frame rate but keeping the original number of frames…thereby slowing down the animation.
But perhaps not?
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