[Brian Swarthout]

Makes sense. Can’t thank you enough for your help!

[Brian Swarthout]

Thanks for the quick response! I’m aware of using [1] to reference the second value in an array but was unsure why it must be specified following the valueAtTime function rather than in the variable itself. See below for the expression that is not working. Is it due to how valueAtTime works?


t = inPoint;
p = transform.position[1];
v = 100;
while (t < time){
if (p.valueAtTime(t) > 1000){
v = linear(time - t,0,2,100,0);
break;
}
t += thisComp.frameDuration;
}
v

[Brian Swarthout]

Hello!

Dan, This worked. Thank you so much.

This will prove incredibly useful and I’m excited to pick it apart to understand it’s mechanics.

One question I have is… Why must the [1] be input after p.valueAtTime(t) rather than just in the “p” variable itself?

Thanks so much!

[Brian Swarthout]

Hi Alex,

Thanks for the information. I was afraid this was going to be the case. I’ll try my best at picking apart Dan’s triggering expression to see if I can make it work for my purposes.

Does the fact that the position of the layer will be driven by the position of a null change anything or will the expression still need to top a recursive search?

Thanks again,

– Brian

[Brian Swarthout]

Thank you!