INNER CODE UNIT · JavaScript

HALF_PI

ensisoft/detonator · docu/OpenGL Camera_files/songho.js:294

    let HALF_PI = Math.PI * 0.5;
    let t = alpha;

    // recompute alpha based on animation mode
    if(mode == AnimationMode.EASE_IN)
    {
        t = 1 - Math.cos(HALF_PI * alpha);
    }
    else if(mode == AnimationMode.EASE_IN2)
    {
        t = 1 - Math.sqrt(1 - alpha * alpha);
    }
    else if(mode == AnimationMode.EASE_OUT)
    {
        t = Math.sin(HALF_PI * alpha);
    }
    else if(mode == AnimationMode.EASE_OUT2)
    {

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