/*@brief Calculate the dot product between two quaternions */
public static double dot( ref btQuaternion q1, ref btQuaternion q2 )
{
return q1.dot( ref q2 );
}
/*@brief Calculate the dot product between two quaternions */
public static float dot( ref btQuaternion q1, ref btQuaternion q2 )
{
return q1.dot( ref q2 );
}