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Time Remapped preComp using parentComp time
So here’s my conundrum… I have a precomp with several audio layers and an animation, and I would like to control it in the parentComp using markers, and have the ability to mute/unmute the audio layers based on the marker.comment in the parentComp.
As the audio or audio effects don’t work with masterProperties, I can’t go that route, so I have been trying to figure out a way to make an expression on each audio layer the preComp that will tell it to mute/unmute based on the markers in the parentComp.
The main issue that I ran into is that I can’t figure out how to address parentComp.time in the precomp… every time the timeremap is triggered by a marker it restarts the precomp from the beginning…
valueAtTime addressing the parentComp only addresses it based on precomp timeline… and restarts from “0” every time a marker is used.
for example: I can access the marker.key(1).time of any marker in the parentComp from within the precomp, but I can’t figure out how to write an expression that will change (1) based on time, or iterate it somehow else… since the time remap screws it all up…
I am starting to think that it is not something that can be done… or am I missing something?
any thoughts, suggestions, ideas will be very much appreciated…
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3 Replies
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The time variable in the precomp is equal to the time that the playhead from the parent comp is at, relative to the precomp. So if the main comp contains the precomp starting at 2:00 the value of the time variable for the precomp at the beginning of the parent comp is -2.
To access the parent comp’s time we need to add the precomp’s in-point offset, thus:
time + comp("parent comp name").layer(thisComp.name).inPoint; -
Hi, thanks for the suggestion!
However, this will not work for my setup… the precomp is time remapped and is the full duration of the parent comp – this is so I can trigger the precomp to run from start to end using markers placed on the precomp layer in the parent comp.. so that the inPoint property would be “0”
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Until we solve the expression problem, would you be able to actually make your precomp the same length as the parent comp? That way the timing would work out between them.
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