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Are scale changes intelligently combined when AE renders?
Will there be a difference in the final render between the following three cases, all of which have the total impact of scaling a piece of footage by 225%.
Case 1: A piece of footage is set to scale = 225%
Case 2: A piece of footage is set to scale = 150% and parented by a layer that scales at 150%
Case 3: Comp A contains a piece of footage scaled at 150%. Comp A is nested within Comp B, wherein it is scaled at 150%.
Thanks for any info you can offer on this.
-Mike -
4 Replies
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Thanks Dave!
My question was more about the render result, not the time of rendering. Here is my I actual issue
I have a comp (call it “CompA”) at 720 that contains footage that is scaled down to about 25%, which has a million tiny adjustments in the form of position changes, paint corrections, etc.
I want to recreate this comp at 1080. Of course the easiest thing to do would be to drop CompA into another comp and scale it up. But will I lose resolution this way? If the rendering engine sees footage that is scaled to 25% in one comp and then rescaled by %150 when that comp is nested in another comp, is it smart enough to do one scaling operation, or will do the 25% scale first (losing all that resolution) and then do the second scale?
Thats really the question I am asking for each of those three scenarios.
-mike
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Thanks again, Dave. What would you suggest as search terms to look it up by?
-mc
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[mike cantor] “I want to recreate this comp at 1080. Of course the easiest thing to do would be to drop CompA into another comp and scale it up. But will I lose resolution this way?”
Collapse Transformations is the AE feature you will want to look into – it should help under the conditions you’ve mentioned, ie concatenate transformations across more than one comp into a single execution. There are write-ups and tutorials at the COW on the subject.
As for the script that Dave alluded to, it’s called ScaleComposition.jsx. You can access if via File>Scripts>ScaleComposition.jsx. Then set the appropriate value for the new comp. It’s useful/important that you make a backup of the 720 comp so that you have access to the original.
HTH
RoRKIntensive AE & Mocha Training in Singapore and Malaysia
Adobe ACE/ACI (version 7) & Imagineer Systems Inc Approved Mocha Trainer -
Thanks so much! I’ll take a look at both of those options. FYI I found a script that scale recursively. Don’t know how well it works.
https://aescripts.com/recursive-scale-comp/
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