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LeeJ12
Known Participant
February 4, 2022
Question

Comp viewer showing frame to the left of playhead

  • February 4, 2022
  • 1 reply
  • 208 views

Hi, I've got an odd situation, I think.  As I understand the timeline, the Comp viewer should display what's immediately to the right of the playhead.  I have a stack of images, each one frame long, staggered by 1 frame one after the other.  When I'm on Frame 0, the first layer (Indycar) displays as expected.  When I move to frame 1, nothing displays, though there is an layer at that time in the comp (see attached, look at layer "2 CheckeredFlags.png").  When I move to frame 2, the Checkered Flag layer displays, though it only exists on frame 1.  In my screenshot, at frame 6, you'll see I have selected the "Create" text layer, and the "Guitar" layer.  Both are displayed at the same time, despite existing on frames 6 and 5 respectively.

 

I've purged all memory and the cache.  I'm running AE 2022 on Windows 10.  I'm not sure if this is a bug, but it's definitely not behaving as I'd expect it.  Thanks for any help.

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1 reply

Mylenium
Mylenium
Legend
February 5, 2022

Your image clearly shows that your current time indicator is still within the "left" frame, so I'm not clear what you are asking. as far as AE goes, this is perfectly correct. For anything else you may want to check the actual duration of the segment and things like footage interpretation and composition framerate. AE operates on real time calculations, not absolute frames. Even minor discrepancies can cause such seemingly odd things, but are mathematically correct.

 

Mylenium

L
LeeJ12Author
Known Participant
February 8, 2022

I'm not sure I understand how the CTE is within the "left" frame.  It's clearly on Frame 06.  You can see that frame 06 is highlighted.  And since these are PNGs, they aren't "footage" in the sense that they have a framerate that would be affected by the comp framerate (which is 30fps).

 

Another odd thing that's happening, and I'm sure it's related, is that at Frame 00, the Indycar graphic is visible.  As expected.  But it's also visible on Frame 01, despite it only having a duration of :00 - :01 frames.

 

I can work with it as it is, it's just inconsistent with how it works at other times, and I was hoping there was something I was fundamentally misunderstanding about how single-frame images worked.  But that doesn't seem like the problem, and it's just AE being AE.

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