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Quick question about expression
Hi,
I’m color correcting a music video which mainly consists in two different scenes intercutted (the band playing and a fiction part, I know how original!). All the edited footage is in one sequence.
I used an adjustment layer with the appropriate corrections and keyframed the opacity (0 or 100) so it fits with one of the scene (the band). Now I want to do the same with another adjustment layer for the other scene(fiction). The opacity will be the exact opposite of the first layer. (0 when 100, 1 when 99…). What expression can I use so I won’t have to keyframe the second adjustment layer?
Thanks in advance
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4 Replies
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Just create an expression for the opacity of adjustment_layer_2 that says:
100 – opacity of adjustment_layer_1
obviously you will have to enter the proper syntax but I’m assuming you just wanted to know the logistics of the expression.
Jon Geddes
http://www.precomposed.com -
The Interpolation method works well here.
Apply the following expression to the second Adjustment Layer’s opacity property. Stuff in [ … ] are instructions for you to follow.
//Start script
AdjOpq = [pickwhip to the first Adjustment Layer’s opacity];
linear(AdjOpq,0,100,100,0)
//End ScriptHTH
RoRKbroadcastGEMs – AEPro Volume 02 (Professional Adobe After Effects Project Files – Now Available).
Adobe After Effects Training in South East Asia.
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Thanks guys, I tried Jon’s way and it worked perfectly. Saved me a lot of time!
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