void Update()
 {
     if (Input.GetMouseButtonDown(0))
     {
         if (portrait.IsPlaying("Idle"))
         {
             portrait.StopAll(0.3f);
         }
         else
         {
             portrait.CrossFade("Idle", 0.3f);
         }
     }
 }
 void Update()
 {
     if (Input.GetMouseButtonDown(0))
     {
         if (!isPlaying)
         {
             portrait.CrossFade("Idle", 0.3f);
             isPlaying = true;
         }
         else
         {
             portrait.StopAll(0.3f);
             isPlaying = false;
         }
     }
 }