cascading color change

[Dan Ebberts]

If you apply this expression to the Color parameter of the Fill effect, the layers will change to red in sequence, one second apart.

delay = 1;
if (Math.floor((time – inPoint)/delay) >= index)
[1,0,0,1]
else
value

Dan

[Jonas Espinoza]

do you have a tip bucket at your site? thank you so much for lending your brain

[Jonas Espinoza]

question, i am already using the inpoint to control the items dropping

is there a way to have a marker on the control null be what the delay is comparing itself to? does that make sense?

so i can have a marker on the null at say 15:00 and starting then a bunch of the items turn red in a cascading way and i can slide the marker as needed?

thanks so much dan

[Dan Ebberts]

That should work. This assumes the control null is below the other layers in the layer stack:


L = thisComp.layer("dropper");
delay = 1;
result = value;
if (L.marker.numKeys > 0){
t = L.marker.key(1).time;
if (time >= t){
if (Math.floor((time-t)/delay) + 1 >= index){
result = [1,0,0,1];
}
}
}
result


Dan

[Abbi Eiler]

I am trying to use the expression that was provided in this post in order to make a row of shapes change color in a cascading order. I was originally looking for a way to copy one layers color change key frames with an expression that adds a delay for each shape so there is a cascading appearance. Where does the color red come from in this expression? I am trying to change the expression so that it will have the colors I need but I don’t know what part of the expression is controlling the color itself. Thanks for your help.

[Dan Ebberts]

In expressions, colors are normalized to values between 0 and 1 and expressed as an array [r,b,g,a].
So red is [1,0,0,1].

Hope that helps.

DAn

[Abbi Eiler]

It did help, that’s exactly what I was trying to figure out. Thanks.

AE777