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Renders times increase as rendering multiples comps!

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Christian Reid
Renders times increase as rendering multiples comps!
on Jun 5, 2013 at 3:23:46 pm

I've been having a HUGE problem with my rendering.

As the image shows, I have 22 queued comps that are exactly the same (just a single text layer changes from one to the other) but they take more and more time to render as each item in the queue completes.

I'm using Mac OSX 10.8.3 on a MacBook Pro 2.5GHz i7 with 16GB RAM.
As for the AE Settings, I'm not using "Render Multiple Frames", and I have set 13GB of "RAM available for AE" option.

Anyone has the same issues, know solutions, or any help at all??
Would be much appreciated!!


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Dave LaRonde
Re: Renders times increase as rendering multiples comps!
on Jun 5, 2013 at 3:46:08 pm

Try this trick:

WHILE YOU HOLD DOWN THE SHIFT KEY, go to the very top menu and Edit>Preferences. When the Preferences window opens, go to the Secret settings. Set it to purge every x number of frames. In this particular case, you could make it purge at the next-to-last frame of the shortest comp.

It may make the first render go a little longer... and every render after that about the same time, which is a LOT better than what's happening currently.

And don't forget to reset the purge preference when you're done.

Dave LaRonde
Former Sr. Promotion Producer
KCRG-TV (ABC) Cedar Rapids, IA

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Christian Reid
Re: Renders times increase as rendering multiples comps!
on Jun 5, 2013 at 6:43:26 pm

Hey Dave and Todd, thanks for the replies.

Todd, I'm updating right now hoping it fixes.

Dave, I have already tried that and nothing changes.

I've made some other tests with minor changes. None of the things listed below worked:
- Rendering TIFF Sequence/MOV
- Multiple Frames ON/OFF
- Purge from Secret option ON/OFF
- Turning ON/OFF a little expression I did inside each Comp
- I've collected the files to another Mac and rendered, nothing!

What HAS worked is:
1. I've sent every comp I need to the Queue
2. Unchecked all the items
3. Check and render just the FIRST item
4. Delete this completed item from the Queue.
5. Render the second (that has become the #1 in the list)
And so on...

The thing is, when a comp has rendered, I NEED to remove the completed item, or it won't reduce the time for the second one. For that, I've made a script with help from Dan Ebberts:

var rq = app.project.renderQueue;

// unqueue everything

for (var i = 1; i <= rq.numItems; i++){
rq.item(i).render = false;

// now queue, render, and delete them one at a time

var myItem;
while (rq.numItems > 0){
myItem = rq.item(1);
myItem.render = true;

It worked once, then it stopped working for no reason at all...crazy tech stuff...

I'm almost hopeless!

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Todd Kopriva
Re: Renders times increase as rendering multiples comps!
on Jun 5, 2013 at 3:52:37 pm

Make sure that you've installed the latest updates ( ). They fix a lot of problems, including a fix in the 11.0.2 update that works around a bug in Mac OSX memory management.

Todd Kopriva, Adobe Systems Incorporated
After Effects quality engineering
After Effects team blog

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