/*@brief Return the linear interpolation between two vectors
@param v1 One vector
@param v2 The other vector
@param t The ration of this to v (t = 0 => return v1, t=1 => return v2) */
public static void lerp( btVector3 v1, btVector3 v2, double t, out btVector3 result )
{
v1.lerp( ref v2, t, out result );
}
