void InitDR()
{
DRRiggingV = new DeadReckoningVector[riggingTransforms.Length];
DRRiggingQ = new DeadReckoningQuaternion[riggingTransforms.Length];
for (int i = 0; i < riggingTransforms.Length; ++i)
{
DRRiggingV[i] = new DeadReckoningVector();
DRRiggingQ[i] = new DeadReckoningQuaternion();
}
}