/*@brief Return the angle between two vectors */
public float btAngle( ref btVector3 v1, ref btVector3 v2 )
{
return v1.angle( ref v2 );
}
/*@brief Return the angle between two vectors */
public float btAngle( ref btVector3 v1, ref btVector3 v2 )
{
return v1.angle( ref v2 );
}
