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Follow the Leader Expression–Only on one axis
This well-known expression makes a layer ‘follow the leader.’ It works on both X and Y. How do I restrict it to only the X dimension?
delay = 5; //number of frames to delay
d = delay*thisComp.frameDuration*(index – 1);
thisComp.layer(1).position.valueAtTime(time – d)Cheers!
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5 Replies
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You simply extract it by accessing the array it is stored in 😉
thisComp.layer(1).position.valueAtTime(time – d)[0]
Mylenium
[Pour Myl
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Hey Mylenium, that was me (govinda) using an old account out of desperation.
That line of code gives me an error when I replace my second line with it. ‘Expression result must be of dimension 2, not 1. Error occurred at line 0.’
Is there more to this?
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This should do it:
d = delay*thisComp.frameDuration*(index – 1);
p = thisComp.layer(1).position.valueAtTime(time – d);
[p[0],value[1]]Dan
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Yeah, sorry for being so ominous. Dan has already provided the full code, so go, get it. ;O)
Mylenium
[Pour Myl
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Hey all,
I’m trying to use this expression to create a herd of caribou following a leader along the x-axis of my comp, but when I apply the expression I get the error “no property or method named delay”, any suggestions?
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