Make OrbitControls turn camera exact 180 degress from its current position/rotation

Just for my understanding: do you want to have the camera look away from the target?

If that’s the case, you might(!!) possibly achieve the same effect (that is: HACK OrbitControls without any code change) by providing a “fake” target which would have to be re-computed on every new frame though.

Food for thought.

Please report back.