public DefaultTransform()
{
_isSRTMatrix = true;
_srtLocalPosition = Vector3.Zero;
_srtLocalRotation = Quaternion.Identity;
_srtLocalScale = Vector3.One;
_cachedSRTLocalMatrix = Matrix.Identity;
_isCachedSRTLocalMatrixUpToDate = true;
_cachedRTLocalMatrix = Matrix.Identity;
_isCachedRTLocalMatrixUpToDate = true;
}