Ray/RayHelper incorrectly registering hit

[JohnK]

@gbz

Added q.normalize()

An explanation of why this could be necessary from earlier thread

Simplest way to rotate vector by Euler angles

You can manipulate quaternions in BJS. Have you seen Quaternion - Babylon.js Documentation Just to emphasise something a little different between terminolgy in the video you gave the link to and BJS In BJS (and Wikipedia) quaternion has the form a + x i + y j +z k and not all quaternions are rotation quaternions. A rotation quaternion should be a unit quaternion In the video it appears the term quaternion is restricted to one having a unit vector for its axis. Here is an example with the qu…