public override void onFaceLost(float timestamp, int faceId)
{
fog.enableEmission = true;
currentValence = 0;
currentAnger = 0;
currentSurprise = 0;
currentSmile = 0;
currentDisgust = 0;
currentEyeClosure = 0;
if (Debug.isDebugBuild) Debug.Log("Lost the face");
}