Connecting scale, and maintaining keyframes values

[StefanStehlik]

I would like to connect the scale property of "Layer 1" to the second layer with this expression: thisComp.layer("Layer 2").transform.scale. Is there a way to maintain the value of the scale keyframes relative to the new scale of the "Layer 2".

[Dan Ebberts · Accepted solution]

There's more than one way to interpret what you're asking for, but maybe like this:

s = thisComp.layer("Layer 2").transform.scale/100;
[value[0]*s[0],value[1]*s[1]]

[StefanStehlik]

Thanks Dan, this works great. How would you adapt this expression to position, rotation, and transparency, maintaining relative values?

[Dan Ebberts · Accepted solution]

I guess for rotation you could do this:

r = thisComp.layer("Layer 2").transform.rotation;
value + r

and this for opacity:

t = thisComp.layer("Layer 2").transform.opacity/100;
value*t

but postion is trickier. For position you need a reference point, and how you'd implement that would depend on exactly what you're looking for.

[StefanStehlik]

Thank you Dan