I'm currently working with some camera rotations. The issue is, given a camera in an arbitrary rotation (R) and position (T) in a three dimensional space I want to give the viewer the impression that they are able to rotate any item centred at (0,0,0) by an angle alpha.
This is an example of an arbitrary camera:
While this is the effect I would like to obtain (car facing forward, rotated by alpha=90º):
However I would like this effect to be obtained by means of moving the camera only, NOT the car:
In summary, (A) is the arbitrary camera, in (B) the object is rotated and in (C) the same effect is achieved rotating the camera only.
The camera position is a three dimensional vector containing the XYZ values while the rotation is represented with a Quaternion. What series of transformations should I apply to the camera to achieve this result ?
Thanks in advance