So why is this? 2.9GB per frame sounds like a 32-bit issue rather than 64-bit.. Can this have to do with i/o format of choice?
Yes, the image sizes are high - I'm working with a series of high res stills with animation, given no layer is larger than 2000x2000 pixles I guess it all adds up. My main comp and output is only PAL 16x9 FHA though.
Erik, I don't think it's necessarily a 64-bit issue. I'm seeing a similar thing here, and 2 GB per frame seems to be the magic size. I have submitted this information as a bug report, and I'd suggest you do as well.
Todd, if you happen to read this, I've tried to be thorough, but if you can think of any other information that would be useful to get to the AE team for the bug report, please let me know and I will re-submit it.
I am unable to create and preview large comps; it seems as though comps up to 2 GB per frame are ok, but above that, I get an error as follows:
After Effects error: image buffers of size 24000x23000 @ 8 bpc (2.1 GB) exceed internal limits. Decrease the memory requirements for the rendering of this frame. (12804). For more information, see http://www.adobe.com/go/learn_ae_mem
I can replicate this problem on my AE workstation with other large comps, like 17,000 x 16,000 @ 16bpc, or 12,000 x 12,000 @ 32bpc.
My system has 32 GB of RAM. AE is currently running with multiprocessing off, leaving 4 GB for background apps. I'm seeing 28 GB of free RAM in MenuMeters.
I am running OS X 10.5.8 and AE 10.0.1.19.
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Aye, it seems so. I can render the given project in 8 bpp but not 32 bpp. I've tried to render with and with out multiprocessing on and both give the same error. Note I'm not using that huge images. 2000 x 2000 pixels are the largest ones BUT I do have a lot of layers and at the point of error I have very high motion and very high level of motion blur so it might be a frame size / sample rate issue / limit.