title: Raycasting direction relative to global coordinate system , not local
body: <p>I have used raycasting method to detect different colored strips on either side of the track and keeping my car object in position by calculating the distance. But the problem is the ray always points in the constant direction in the global coordinate system and doesnt change with the movement(rotation) of car object. It could have if the ray direction were in the reference frame of car which I am not able to figure out how to do. Currently I am doing this</p>
  
  <p>var ray = new THREE.RayCaster(car.position, new THREE.Vector3(-1,0,0),0,50);</p>
  
  <p>The movement of car is in the X-Z plane</p>
  
  <p>Can someone point out a solution ?</p>