autoFadeIn-Out

レイヤーの不透明度に適用

inPoint、outPointを変えてもフェード時間は変わらなくなる

fadeInDuration = 0.5;

fadeOutDuration = 0.5;

if(time<(inPoint+fadeInDuration)){

     linear(time, inPoint, inPoint+fadeInDuration, 0, 100);

     }else{

         linear(time, outPoint - fadeOutDuration, outPoint, 100, 0);

         }