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Rendering sections from a huge comp
Hi all,
I’m working on a piece for a retail installation. The massive screen has a full resolution of 9Kx2K.. I need to render sub regions from my final stage setup for each of the MPEG streams that feed the screen. (I am also working with half/quarter res versions for some layers where the resolution isn’t critical.)
I’ve inserted my final stage comp into individually cropped screens for rendering. Only problem is, when I try to render AE is creating the entire 9Kx2K frame each time, when I only need (for example) one small 1024×768 portion. Is there anyway to get around this and force AE to only calculate that section ? As you can imagine it’s causing all kinds of rendering grief.
Any suggestions would be greatly appreciated. I hope this is clear.
Cheers,
Andyp.s: Anyone know how those guys at Imaginary forces would’ve created there huge pieces for Fremont St ?? Very cool.
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4 Replies
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I am guessing you are trying to render a section that makes up the individual frame for each projection? If so, then why not create a new comp at 1024×768, then drag your main 9by2 comp in and position it where you need to and render away.
Todd
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Hi Todd,
Thanks for your response. That’s exactly what I am doing.
The problem is, AE is trying to render the whole 9Kx2K comp into the frame buffer. That’s when it dies.. What I need to do is force it only to render the area i’m interested in and ignore anything outside of that particular area.Any more suggestions ?
Thx,
Andy -
Do you have any quicktime or other media files as a source in your comp? If so, they may be also causing the rendering problems, as would the output file if you are also rendering to anything other than sequence images. Since media files are placed into temp RAM so that you can access frames. Unlike sequencial files that only load the current frame neede to render the comp.
Hope that helps.
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Hi Todd,
Thanks for that suggestion. I will consider using .TGA sequences instead of quicktime clips, however, i’m also using illustrator elements + plugins (stroke, particular etc) in the comp.
I think I might have figured out another approach. A little time consuming although, this could work..
1) create full comp with all elements.
2) position nulls in the comp at the centres of the screens to output.
3) reduce comp size to 1024×768
4) Parent all elements to a single null. Offset the entire stage to fit the screen location required. (i.e offset until the required screens’ centre is in the centre of the new comp)
5) RENDER.If i’m correct, AE only renders what it sees so it’s not trying to calculate anything outside of the visible comp (?) This should save it calculating the entire 9K image, thus saving memory. At least that’s my theory…. Will try tomorrow when I return to the office. Thanks for the replies so far..
Cheers,
Andy
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