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Time Remap expression for multiple keyframes
Hi I’ve build an expression for Time Remap keyframes but it works with first four keyframes only. Maybe someone can prompt me how to make it work with more than these four keyframes.
There are seven keyframes in total applied to the precomp with animation. An animation looks like a transitions between three static scenes. So three static scenes and three transitions between them and the main idea of this expression is to extend timing between “stop points” keyframes (wrapping static scenes) depending on the overall length of the animation driven by the value in a text layer, but at the same time it needs to keep distance between keyframes wrapping the transitions intact.
Here’s the expression applied to Time Remap property.
//7 Time Remap keyframes
t1 = key(1).time;
t2 = key(2).time;
t3 = key(3).time;
t4 = key(4).time;
t5 = key(5).time;
t6 = key(6).time;
t7 = key(7).time;//Total length defined in a text layer
Length=thisComp.layer("TotalLength").text.sourceText.value;//Number of the transitions
AnimNum=3;//Number of the static scenes
StopsNum=3;//Transition timings
AnimTime1= t2-t1;
AnimTime2= t4-t3;
AnimTime3= t6-t5;
TotalAnimTime = AnimTime1+AnimTime2+AnimTime3;//Static scenes duration depending on length
StopTime=(Length-TotalAnimTime)/StopsNum;//New timing for keyframes recalculated depending on length
NewTime1 = 0; //it should always be 0
NewTime2 = NewTime1+AnimTime1;
NewTime3 = NewTime2+StopTime;
NewTime4 = NewTime3+AnimTime2;
NewTime5 = NewTime4+StopTime;
NewTime6 = NewTime5+AnimTime3;
NewTime7 = Length;//And here is the part where I need help. So far I'm able to assign new timing with linear expression only but it works with four keyframes only.
if (time<=NewTime2) { t = linear(time,NewTime1,NewTime2,t1,t2); valueAtTime(t) } else { t = linear(time,NewTime3,NewTime4,t3,t4); valueAtTime(t) }
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1 Reply
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Maybe this aproach is what do you need:
https://motionscript.com/design-guide/marker-sync.html
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