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Expressions that change layer-in point.
Hello everyone,
I’ve been putting together a tunnel by having a section of it travel a path in a precomp and then in the main comp time-remapping that pre-comp along the path. (a lot of layers with a time-remap expression based on the index of the layer) This gives me a lot of layers, about 400. On my machine rendering this out takes about 160 hours. So i want to cut that time by just rendering the layers I see. I should be able to determine the layer in-point based on the time remapping value but i have no idea how to implement this. Any ideas out there?
Another question. If i can’t manipulate the in-point, will animating the opacity to zero cut back to the render time? Does after effects skip layers with an opacity of zero?
Thanks for the help,
Wouter
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4 Replies
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You can’t change in points with an expression. I’m not 100% sure, but I’d guess that layers at 0% opacity still render (someone else please jump in here if I’m wrong). Probably what you need is a script that will go in and trim the in points for you.
Dan
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Thanks for the reply, Dan.
Where would I put an expression that trims my in points? Surely not in a transform attribute like position. If necessary I can probably skip the expression, and roughly trim the layers by hand.
Thanks again,
Wouter
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I’m sorry if I didn’t explain it clearly. You can’t do it with an expression. It would take a script.
Dan
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ok. Sorry, i read over “script” in your initial reply.
Thanks again,
Wouter
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