set expression on one layer and have subsequent layers follow same behavior

Play around with this:

strtTime = 1;
zDist = 500;
moveDur = .75;
delay = 1;

t1 = strtTime + (index-1)*delay;
t2 = t1 + moveDur;
if (time < t2)
value - ease(time,t1,t2,[0,0,0],[0,0,zDist])
else
value - ease(time,t2,t2+moveDur,[0,0,zDist],[0,0,0]);


Dan

Ah. It looks like the "if" statement got messed up in the translation. It's supposed to be:

if (time < t2)


Also, it's set up to generate the z animation without any keyframes. It will just sequence one layer after another, starting at whatever you have strtTime set to.

If you want to keyframe the first layer (let's say it's named "leader") then you could use an expression like this on the others (which need to be below "leader" in the layer stack):

delay = 1;
L = thisComp.layer("leader");
z = L.transform.position.valueAtTime(time - (index - L.index))[2];
[value[0],value[1],z]

Dan

Yes. The pick whip should take care of the syntax for you. If you can't get it to work, post a screen shot of the broken expression and the error message.

Dan

OK - you still need to define a local variable named "zDist". Your second line should look like this:

zDist = thisComp.layer("Null 1").effect("zDist")("Slider");

When you used the pick whip it looks like you replaced the whole second line, but really you needed to just replace the value and leave the "zDsit =" part.

Dan

Also, make sure you copy the code from the web site, not the email. The email appears to be getting messed up.


Dan