How to apply the expression using script?

I use a script and an expression to automate all the layer selected to attend the control layer. So, I've do it now in two steps, first make a layer of control using this script:

{

model var = app.project.activeItem;

var slctd_layer = comp.selectedLayers;

var new_adjustment = comp.layers.addSolid ([1,1,1], "Control", comp.width, comp.height, comp.pixelAspect, comp.duration);

new_adjustment.adjustmentLayer = true;

var addSlider1 = app.project.activeItem.selectedLayers [0]. Effects.addProperty ("ADBE Slider Control");

addSlider1.name = "time";

addSlider1.property (1) .setValueAtTime (0, 0.06);

var addSlider2 = app.project.activeItem.selectedLayers [0]. Effects.addProperty ("ADBE Slider Control");

addSlider2.name = "opacity";

addSlider2.property (1) .setValueAtTime (2, 0);

addSlider2.property (1) .setValueAtTime (2.03, 100);

}

Then, I select all the layer under the control and apply the expression, for example:

delay = thisComp.layer("Controler").effect ("delay") ("Slider") * index;

t = time + delay;

exp = thisComp.layer("Controler").effect ("opacity")("Slider").valueAtTime (t);

exp;

I'm working on an animation of the tight timelines and tons of materials with tons of layer for each model now. So I think that if it is possible to combine this stage two in a script that will automate this work for me. I'm still new to scripts and none need help with it. Thank you

Like this:

var ease = new KeyframeEase(0,100/6);    // speed (0 for easeIn or easeOut, influence range: 0-100)
var addSlider1 = new_adjustment.effect.addProperty("ADBE Slider Control");
addSlider1.name = "delay";
// 1st key: value + ease
addSlider1.property(1).setValueAtTime(0, 0.2);
addSlider1.property(1).setTemporalEaseAtKey(1, [ease], [ease]);
addSlider1.property(1).setInterpolationTypeAtKey(1, KeyframeInterpolationType.LINEAR, KeyframeInterpolationType.BEZIER);
// 2nd key: value + ease
addSlider1.property(1).setValueAtTime(2.03, 0.03);
addSlider1.property(1).setTemporalEaseAtKey(2, [ease], [ease]);
addSlider1.property(1).setInterpolationTypeAtKey(2, KeyframeInterpolationType.BEZIER, KeyframeInterpolationType.LINEAR);

(The use of setInterpolationTypeAtKey is not necessary, it is only there to do things similar to what you would get by doing things by hand).

Xavier

Tags: After Effects

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