Expression to adjust the value of an effect depending on the number of letters

[Dan Ebberts]

Probably something like this:

n = comp(“Text”).layer(“text”).text.sourceText.length;
173 – Math.max((n-1),0)*5

Dan

[Finn Hitchcock]

Hey thanks for helping out!

It’s coming up with this error: https://imgur.com/5IifEPF

how could I fix it?

View post on imgur.com

[Dan Ebberts]

Try it this way:

n = thisLayer.text.sourceText.length;
173 – Math.max((n-1),0)*5

Dan

[Finn Hitchcock]

Thanks, it’s working but I am unable to keyframe it to 0.
Is there a work around?

[Dan Ebberts]

Under what condition would you want it to be zero?

Dan

[Finn Hitchcock]

I want it to start at the expression value the keyframe to 0 ( no matter the amount of letters)
I’ve added this to the expression, am I on the right track?

prop = thisProperty
firstKey = prop.key(1).time;
n = thisLayer.text.sourceText.length;
170 – Math.max((n-1),0)*5

Thanks

[Dan Ebberts]

You could try something like this:


if (numKeys > 0 && time >= key(1).time){
value
}else{
n = thisLayer.text.sourceText.length;
170 - Math.max((n-1),0)*5;
}


Dan

[Finn Hitchcock]

It’s not changing the value depending on the num of letters now 🙁

[Dan Ebberts]

It should, unless the number of letters changes after the first FOV keyframe.

Dan