Position Expression

Question

Hello all, My issues is, i have one shape layer, which is moving from left to right and vice versa. so now if i use expression loopout("Cycle"); , it will be looping for the infinite times. but the thing is want to loop this for only 8-10 itterations times. so how can i achieve this in After effects.

If you say to do this "loopOut("cycle",8)" , then its now working at all, it is looping for infinite number of times.

Thank you.

Rick Gerard · Accepted Answer

Adding a number after you define the type of loop tells the number of keyframes you want to use. If there are eight keyframes and you use loopOut("Cycle", 2), the loop will use the first and the last 2 keyframes.

In order to get a loop to stop, you need the define the number of keyframes, the time of the last keyframe minus the layer's in-point, and the number of loops you want, then throw in an if statement that runs the loop for the number of times you want it to run until the end time of the loop.

Try this:

nKeys = 3;
nLoops = 8;
st = time - inPoint; 
lKey = key(nKeys).time - inPoint;
nTimes = nLoops * lKey;
if (st < nTimes){
	loopOut("cycle");
}
else{
	key(nKeys).value
}

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