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Accessing another Gig of Ram
Hey…I’ve got 3 gigs of ram but AFX only uses 2. If AFX used 3 gigs will it improve render times and those irritating “cache problems?” (Right now I have 10 minute vid and it’s taking almost 24 hours to render. Mind you, I’m using HDV footage.)
I was once following someone’s instructions on changing some word document on the computer to tell it to access another gigabyte of RAM, however, I have multiple copies of windows on my comp (64bit, standard)and it didn’t seem to work for me.
If it really is a good idea, then does anybody know how?
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13 Replies
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I don’t think it’s a good idea for AE to try to use all the RAM you have. What about the OS?
Yes, your render problem is most likely due to using HDV footage. Convert the source to Photo-JPEG or Animation Quicktimes in QT Player, then use Replace Footage in AE to replace the HDV with the converted footage.
You should also get more RAM. But you knew I’d say that. 🙂
Anybody else?
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You don’t mention which version of After Effects you are running, nor whether you have a multicore processor.
After Effects 7 only sees 2 GB of RAM. CS3 sees 3 GB but if you enable multiprocesssing it can use all available memory, you need at least 1 GB per core.
If you have a multicore machine try Nucleo Pro to speed renders. You can download a trial version from their site to see whether it helps.
https://www.gridironsoftware.com/
Nucleo will benefit from more RAM as well.
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You don’t mention which version of After Effects you are running, nor whether you have a multicore processor.
After Effects 7 only sees 2 GB of RAM. CS3 sees 3 GB but if you enable multiprocesssing it can use all available memory, you need at least 1 GB per core.
If you have a multicore machine try Nucleo Pro to speed renders. You can download a trial version from their site to see whether it helps.
https://www.gridironsoftware.com/
Nucleo will benefit from more RAM as well.
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Keep in mind that changing the codec of source media in AE will have zero affect on the amount of RAM used. That’s not how AE (or any other system) works. AE loads media into it’s uncompressed 8, 16 or 32 bit 4:4:4 work space. Therefore a more compressed source doesn’t mean less data for AE to process. (And animation codec is less compressed than HDV anyway!) The best way to reduce memory requirements is to use proxies that are lower resolution. For your final render you’ll have to switch to full-res, so that would only save you time/RAM while working, not on your final render. At the risk of sounding harsh, I think you should study up before giving such poor advice.
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James’ original post indicated that RAM might be the cause of slow renders. Dave and I indicated that using HDV, not low RAM, might be the cause of slow renders.
The HDV codec is interframe, and AE takes more time to decompress it and look across the frames to render each frame. An intraframe codec would be faster.
Again, we did not say that avoiding HDV will affect the amount of RAM used. Please re-read the posts before giving advice that may sound harsh.
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Ok, sorry if I jumped the gun and came off harshly. In fairness, you didn’t specify why switching codecs would help. It’s true that intra-frame compression will slow things down, both reading from and writing to, but in my experience with HDV there’s no way that would account for 10 mn of footage taking 24 hrs, even on an ancient system. Or am I missing something…
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sure, there are lots of scenarios that would cause AE to slow down to 24 hrs for 10 mn of footage. My point is that intraframe compression alone wouldn’t be one of those scenarios.
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Good morning or Good Afternoon. Here in Korea it’s morning, which is why I reply late.
Well I do have an AMD dual core 4200 machine with 3 gigs of ram on a AFX CS3.
Ok..I have since rendered that composition down to a jpeg sequence, cuz if it failed I wanted to have something.
Now, here’s my latest bummer:(and start of new thread)
My new jpeg sequence doesn’t match the size of the compisition from which it came from by about 1.5 seconds. That’s a nasty probelm for me cuz I need to rerender with the sound and give this video to someone today!!!!
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Fair enough. I guess we don’t have the whole picture yet.
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I think someone else in the forums just had the same problem. Check the frame rates after you imported the sequence. AE defaults to 30fps on import.
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