Hi all,   I'm importing my camera position and rotation from a .max export to .Babylon. And I make the camera fly from 1 camera point to the other. But in some cases the camera rotation rotates like 270 degrees to get to the end rotation. I've set up the angles in this playground.   http://www.babylonjs-playground.com/#W27OD   How can I calculate the difference in angle between 2 vectors and convert 1 of them to make sure that the shortest route will be taken?   thanks   To clarify: