Trying my first script to create Comp with a specific BPM, but have some trouble with buildUI
  • Florimond ZipperFlorimond Zipper
    Hello Guys,

    So first sorry if I post in the wrong categorie, I try to do my best lol

    So I'm new in the scripts and  javascript and I try to do it simple.

    I'm a VJ and want to create a script where I enter a "BPM" and a "beat" lengh and it generate me a comp with the right lengh and ass a layer with a marker ofr each beat.

    I was able to create that script but As I try to make it look a bit better with a buildUI for AE I was not able to make it work right. If someone can help me or give me some tips. I think I'm not right withe "addComp" expression in the buildUI function.

    I don't copy everythin because it's long but you will understaind the main Idea. My question is how to have the entry in my buildUI instead of the "prompt"

    Here is my first code who does the job :

    //Set Var Elements

    var name = prompt("Composition name");
    var BPM =prompt("Your BPM");
    if (isNaN(BPM)) {
        alert("You must give the comp a value");
       }
    var Beats = prompt("How Many Beat");
    if (isNaN(Beats)) {
        alert("You must give the comp a value");
        }
    var frameRate = prompt("Your fps");
    if (isNaN(frameRate)) {
        alert("You must give the comp a value");
        }
       
    var duration = ( 60  / BPM * Beats ); //Auto Generated
    var beat = (60  / BPM);

    //Creation Part

    app.project.items.addComp(name, 1920, 1080, 1, duration, frameRate); // Create Comp with Custom Lengh

    app.project.item(01).layers.addSolid([0,0,0], "BG", 1920, 1080, 1, duration); // Create BG Solid
    var firstLayer = app.project.item(1).layer(1);
    firstLayer.label = 16;

    app.project.item(01).layers.addSolid([0,0,0], "FX", 1920, 1080, 1, duration); // Create FX Solid

    app.project.item(01).layers.addNull(duration); // Create Null Object

    var firstLayer = app.project.item(1).layer(1); // Rename Null Object
    firstLayer.enabled = false;
    firstLayer.name = "Beats";
    firstLayer.label = 0;

    // Place a marker on the 64 first beat
    var myMarker = new MarkerValue("0");
    firstLayer.property("Marker").setValueAtTime(beat*0, myMarker);

    // Key every Beat on opacity
    myProperty = firstLayer.opacity;
    myProperty.setValueAtTime(beat*0, 0);








This discussion has been closed.
All Discussions