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controlling keyframes
hello
I have a bunch of keyframes that drives an animation , I need to control the begging of it. tell it when to begins in seconds by using an slider control.
anyone can help with that expression ? -
4 Replies
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Something like this should work:
firstKey = key(1).time;
offset = effect("Slider Control")("Slider");
valueAtTime(time + firstKey - offset);Although that will return an error if the property doesn’t have at least 1 keyframe. A try/catch statement could be used to prevent that error:
try{
firstKey = key(1).time;
offset = effect("Slider Control")("Slider");
valueAtTime(time + firstKey - offset);
}
catch(err){
value;
}Darby Edelen
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that’s working just fine , thank you bro , but what if you have a comped animation – for instance 2 seconds- and you want to offset and play it with expression through the time line ? I mean control the beginning with a slider on another layer.
is it possible ? -
Time remapping is the easiest way to do something like that. In that case an expression would be optional depending on how you want it set up.
Darby Edelen
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yes, that’s what I did , thank you for your help .
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