loopOut dropping last frame of sub-comp

[Kevin Camp]

whenever you time remap a comp, it always ends up with the last frame as blank… what i normally do after adding time remapping to a nested comp is go one frame before the last frame and add a keyframe, then delete the original last key frame.

i think if you simply move your current last keyframe (with value of 6) to frame 6, it should work.

Kevin Camp
Senior Designer
KCPQ, KMYQ & KRCW

[Dan Ebberts]

I think what you need to do:

• enable time remapping
• set a keyframe at the last frame of your sequence
• move forward one frame and set a keyframe with value of 0
• delete the last keyframe that AE created when you turned time remapping on.

Something like that.

Dan

[Greg Neumayer]

What a goofy pain. My solution was to not change any of the (2 automatically created) keyframes in my outer comp (the one applying Time Remap), but to

1. Inside my precomp, add an additional frame to my precomp that matched the first frame of the looping sequence.
2. Apply Time Remap to the outside of my comp, with the expression: loopOut(type = “cycle”, numKeyframes = 0)
3. Extend the duration, now that it can be expanded to infinity.

Honestly, I still don’t understand why that would affect the frame that was “blank”, but hey, I’ve got a deadline to meet! I’ll sharpen my axe later!

Antifreeze Design
https://www.antifreezedesign.com

[Roei Tzoref]

Dan Explained it well. I will elaborate:
whenever you use loop expression on a TR layer/precomp,
you should bear in mind that Time remapping creates the last keyframe one frame after
the last out frame of sequence.

it does this to because after effects assumes its an interlaced movie
so it creates a “freeze” at the last frame for the second field…

so if you loop it as is – you would get a blank keyframe.
basically if you just go to that last keyframe you can see its blank.
(even without looping)

most people override this by creating a keyframe one frame
before the last TR keyframe, and then delete that last TR keyframe.
That would create a loop but as loop cycle expression does it duplicates
the keyframes over and over and thus skips a frame every loop
if you want a loop that doesn’t skip a frame
(just as if you would duplicate the precomp and place it one after the other)
you should duplicate the first frame after the last one and then use the expression.

this is the recipe:
1. Set a keyframe one frame before the last TR key frame.
2. Copy the first key frame over the last TR key frame.
3. Set the loop expression you desire

[Juan Huarte]

IM Sorry, but i have the same problem and that doesn’t work for me. If I do that, then the new keyframe i created turns blank…

[Roei Tzoref]

describe your situation specifically and what exactly are you doing.
if you can then with screenshots or maybe provide the project file (no need for footage)

[Juan Huarte]

Well, i do what you say, but then the keyframe that i made, the one before the last, turns blank. If erase the last one, It works sometimes, but then once i loop it, it turns blank! It’s driving me crazy, i don’t know what else to try.

[Roei Tzoref]

take a look at this project file:
https://www.dropbox.com/s/gow5oaf6zd6mfsn/loop.aep?dl=0

it has a precomp with movement from the left to the right.
in the master comp there’s the expression.

see if your setup is the same.

[Juan Huarte]

Thanks for the help, I’ll check it out. For some reason, the problem fixed itself once i rendered it. Weird.

[Clifford Sonnentag]

Adobe needs to make this better and easier,

I’m so stuck on this one too. I have plenty of looping comps working, but this one I made with shapes is stuck. No matter what I do the thing will not stop glitching off the last frame.

I’ve tried
loopOut("cycle",0)
loopOut("cycle",1)
with extra keyframes at the end in both the comp and in the comps time remap.

I’ve tried extending shortening, changing the clip duration, using this code:
loopSec = framesToTime(timeToFrames(thisComp.duration)+1);
linear(time,0,loopSec, key(1), key(2))

No matter what I do Adobe stabs me with a knife, I want to throw my computer out this 37 floor window right now.

Thanks for the help Dan I found your other post addressing a work-around to what I would consider a bug in Adobe’s After Effects.