[Dan Ebberts]

If you just want to subtract 1 from the layer’s z value you could do it like this:

thisComp.layer(“Layer 1”).position – [0,0,1]

The easiest way to express a value as the three individual coordinates would be to do something like this:

p = thisComp.layer(“Layer 1”).position;
[p[0],p[1],p[2]]

It’s all just JavaScript array notation.

Dan

[Dan Ebberts]

If you just want to subtract 1 from the layer’s z value you could do it like this:

thisComp.layer(“Layer 1”).position – [0,0,1]

The easiest way to express a value as the three individual coordinates would be to do something like this:

p = thisComp.layer(“Layer 1”).position;
[p[0],p[1],p[2]]

It’s all just JavaScript array notation.

Dan

[Dan Ebberts]

Ctrl + Alt + R

Dan

[Dan Ebberts]

This is kind of a hack, but it actually works quite well in most situations:

freq = 1;
amp = 100;

end = thisComp.duration;
delta = wiggle(freq,amp,1,0.5,0) – wiggle(freq,amp,1,0.5,end);
wiggle(freq,amp) + delta*time/end

Dan

[Dan Ebberts]

This is kind of a hack, but it actually works quite well in most situations:

freq = 1;
amp = 100;

end = thisComp.duration;
delta = wiggle(freq,amp,1,0.5,0) – wiggle(freq,amp,1,0.5,end);
wiggle(freq,amp) + delta*time/end

Dan

[Dan Ebberts]

It must be some mismatch in pixel aspect ratio between the comp and the layers. Does the path start out in the right place? What happens when you change the expression to this:

percent = thisComp.layer(“Stroke Layer”).effect(“Stroke”)(“End”);
valueAtTime(2*percent/100)/thisComp.pixelAspect

What are the pixel aspect ratios of your layers?

Dan

[Dan Ebberts]

It must be some mismatch in pixel aspect ratio between the comp and the layers. Does the path start out in the right place? What happens when you change the expression to this:

percent = thisComp.layer(“Stroke Layer”).effect(“Stroke”)(“End”);
valueAtTime(2*percent/100)/thisComp.pixelAspect

What are the pixel aspect ratios of your layers?

Dan

[Dan Ebberts]

Here’s one way. Let’s say your layer with the stroked path is called “Stroke Layer”. Copy the mask shape for the path and paste it into the position parameter of your follower layer. This should create keyframes that cause the follower to trace out the path over a 2-second period. Then just add this expression for position to sync it up with the animation of the “End” parameter of the stroke effect:

percent = thisComp.layer(“Stroke Layer”).effect(“Stroke”)(“End”);
valueAtTime(2*percent/100)

Dan

[Dan Ebberts]

Here’s one way. Let’s say your layer with the stroked path is called “Stroke Layer”. Copy the mask shape for the path and paste it into the position parameter of your follower layer. This should create keyframes that cause the follower to trace out the path over a 2-second period. Then just add this expression for position to sync it up with the animation of the “End” parameter of the stroke effect:

percent = thisComp.layer(“Stroke Layer”).effect(“Stroke”)(“End”);
valueAtTime(2*percent/100)

Dan

[Dan Ebberts]

If you calculate a new value for z you’d combine existing x and y with the new z this way:

z = (whatever);
[value[0],value[1],z]

If you calculate a z offset, you’d add it in this way:

z = (whatever);
value + [0,0,z]

Dan