public void Update()
{
if (Time.frameCount != prevFrameCount)
{
prevFrameCount = Time.frameCount;
prevState = state;
var vr = SteamVR.instance;
vr.hmd.GetControllerStateWithPose(SteamVR_Render.instance.trackingSpace, index, ref state, ref pose);
UpdateHairTrigger();
}
}