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Rendering at Half Resolution causes memory errors more than Full Resolution!
I am trying to render out HD, virtual dolly shots which incorporate a lot of bluescreen footage. I have used Keylight for this.
I have an 8-core Mac Pro with 16 GB of ram. In the multiprocessor settings, I have specified that 4 GB should be left for other applications. This has worked well when rendering at Full Resolution — that is, Activity Monitor shows the amount of Active Ram increasing until it stops when there’s about 4 GB of unused ram remaining (including wired and inactive). Rendering continues without any problems for as long as I require.
However, keeping all multiprocessor settings identical, when rendering the exact same composition at Half Resolution, the Active Ram keeps on increasing until suddenly it drops right back to about 2 GB of usage and then the rendering becomes extremely slow. And then soon after that, an out-of-memory error message appears, sometimes in reference to Keylight. I tried using the secret preference, to purge after so many frames, but that doesn’t seem to work.
So why are my memory settings being totally disregarded when I render at Half Resolution???
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1 Reply
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Wow, thanks for the quick reply!
Since I have OpenGL turned off, the problem must be because of the kind of footage I am using. It was recorded using the Sony XDCAM EX format, 1080p, 25p. What’s more, I first used Premiere Pro to work out what clips I needed and trimmed them in there, before copying and pasting those clips directly into AE.
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