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32gb can’t render 4k?
I have a comp which is 4096 x 2048 px, each time I tried to render it with MP on I get the following error:
After Effects warning: A frame failed to render while using Render Multiple Frames Simultaneously. Allocating more memory to the background processes in Memory & Multiprocessing Preferences may fix this problem. (26 :: 142)When I turn off MP then nothing renders, I click the render button and it immediately goes back to be clickable again and the comp is still available on the render queue, no error is generated in the log.
I have a relatively powerful machine, 32gb ram and 2gb graphics card, but admittedly it is a very complex file with almost 200 layers in the main comp and many more nested, on top of that everything in the main comp runs through separate instances of a plug in called FullGlobe, in which each instance is reading data from several external documents. My timeline is almost 4 and half minutes long.
could it be that I’m expecting too much from my machine?
Thanks,
D. -
28 Replies
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Can you preview the first frame in full res?
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I just rendered a simple composition (one footage layer scaled up quite a lot) at those dimensions at 32bpc, on a computer with less RAM than yours, and it worked fine for me.
So, this just shows that it’s not the pixel dimensions and the color bit depth alone that are the problems for you, nor is it the amount of RAM in your computer.
There must be something else that is requiring a lot of memory for the problematic frame. Many effects require much more RAM to process than just the amount to hold the number of pixels within the frame. I recommend trying to render with various effects disabled until you find the culprit.
Also, 3D layers can require a lot of memory to process under some circumstances (e.g., when a camera is positioned very close to a layer).
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Todd Kopriva, Adobe Systems Incorporated
After Effects quality engineering
After Effects team blog
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Is this Windows or OSX? Try to render just the first 30 seconds of the comp. What codec/format are you trying to render to?
Eric-ADK
Tech Manager
support@adkvideoediting.com -
Hey guys thanks for your help.
I’m on Mac and no, I can’t render the first full frame, no file is created at all when I click render. However I can see it full res full size inside the composition panel while I work in it.
Eric, I tried rendering to every codec available on my machine including prores, avid, h265(qt wrapper) and uncompressed, as well as several types of image sequences. I tried first 30 seconds, then 10, then one. Nothing worked.
Todd, although I have a background layer that is over 6,000 pixels wide scales down I’m almost positive that the offending plug in is one called Fullglobe, which die to the nature if the project needs to be applied to each layer individually, 194 times. Then each instance of the plug on has 6 or 7 expressions, some reference other layers in the same comp, some reference several external documents. I’m guessing the calculation of all those expressions it’s a huge burden for the program.
However the plug in has a “preview” setting which in turns changes the size of the comp to 2048×2048 (distorts everything to look as if it was on a sphere, in fact that’s the main purpose of the plug in. Whenever I’m in this preview mode I can render, it takes a long time but it renders.
I don’t have 3d layers in the main comp, however I have several I’m the nested comps.
Thanks,
D. -
I would prerender as many of the component pieces as possible, to diminish the overall burden on RAM when rendering the final composition.
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Todd Kopriva, Adobe Systems Incorporated
After Effects quality engineering
After Effects team blog
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I think I’ll have to do that. I prerendered the two most complex layers but evidently wasn’t enough.
Quick question though, I started a new render a couple hours ago and at first it started ok with MP off, however when I returned to check on it it was stopped (as in done) and where it normally says how long it took it said: “Will continue from 0:00:23:26. I clicked Render again and it didn’t start again.
The log shows the comp as finished rendered but it only rendered the first 23 seconds, the project is over 4 minutes.
I never saw a render interrupted and that “Will continue from…” before. Does this mean that the machine ran out of memory and stopped?
Thanks again,
D. -
What drive do you have the AE cache going to and what size did you allocate?
Eric-ADK
Tech Manager
support@adkvideoediting.com -
It’s the original internal ssd drive from my imac, originally I had 69 gb but I reduced it to 50gb, I need to clean up that drive to expand it more.
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This comp is going to need more than that. To give you an idea my 30 seconds of 4K takes almost 96GB to render at full resolution. 64GB of ram required AE flushing from ram atleast 3 times and this comp was no where near as ram intensive as yours. You need allot of room for this and pre-render as much as you can. 4K is massive data per frame compared to 1080.
Eric-ADK
Tech Manager
support@adkvideoediting.com -
Crap. Definitely not the answer I was looking for.
One las question, did you purge the ram cache using the secret menu in the preferences or stopping your project, emptying the folder and restarting it again?
Thanks a lot everyone for your help.
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