-
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!
-
6 Replies
-
You simply extract it by accessing the array it is stored in 😉
thisComp.layer(1).position.valueAtTime(time – d)[0]
Mylenium
[Pour Myl
-
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?
-
This should do it:
d = delay*thisComp.frameDuration*(index – 1);
p = thisComp.layer(1).position.valueAtTime(time – d);
[p[0],value[1]]Dan
-
Yeah, sorry for being so ominous. Dan has already provided the full code, so go, get it. ;O)
Mylenium
[Pour Myl
-
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? -
I know this is an old post but just in case you are here
looking for the answer to the last post.
The reason for the error “no property or method named delay”
is the fact that the delay needs to be defined in able to use it in an array.delay = 5; //number of frames to delay
d = delay*thisComp.frameDuration*(index – 1);
p = thisComp.layer(1).position.valueAtTime(time – d);
[p[0],value[1]]
Reply to this Discussion! Login or Sign Up