Function flash

demo/js/index.js:11907–11937

(baseBg, baseFg, flashBg, flashFg)

}

function flash(baseBg, baseFg, flashBg, flashFg) {
  function transitionFlash(to) {
    var t = arguments.length <= 1 || arguments[1] === undefined ? 0.025 : arguments[1];

    return new Promise(function (resolve, reject) {
      var flash = { v: 0 };
      _gsap2["default"].to(flash, t, {
        v: to,
        ease: Quint.easeOut,
        onUpdate: function onUpdate() {
          generateTextures(baseFg, baseBg);
          generateTextures(flashFg, flashBg, flash.v);
          renderer.updateTextures();
        },
        onComplete: function onComplete() {
          resolve();
        }
      });
    });
  }

  var lastFlash = transitionFlash(1);
  (0, _times2["default"])(7, function (i) {
    lastFlash = lastFlash.then(function () {
      return transitionFlash((0, _random.random)(0.1, 1));
    });
  });
  lastFlash = lastFlash.then(function () {
    transitionFlash(0, 0.4);
  });
}
function generateTextures(fg, bg) {
  var alpha = arguments.length <= 2 || arguments[2] === undefined ? 1 : arguments[2];