Quaternion.FromToRotation not working as expected

Unity Engine
1

I’m not quite sure what I’m doing wrong here. I’m applying FromToRotation twice in a row (for a test) and the results aren’t quite what I expect.

		Quaternion startRotation = Quaternion.FromToRotation(transform.forward, startPosition);
		transform.rotation = startRotation;
	
Debug.Log(transform.forward.normalized + " " + startPosition.normalized);	//  These two are the same - Good!
 
		//find target rotation
		targetRotation = Quaternion.FromToRotation(transform.forward, targetPosition);

		//rotate sphere to move missile to start location
		transform.rotation = targetRotation;

Debug.Log(transform.forward.normalized + " " + targetPosition.normalized + " " + targetRotation*startPosition.normalized); First is different from the 2nd and 3rd, which are the same (Bad)!

Initially, transform has no rotation.

The first FromToRotation works as expected, i.e. transform.forward is in the same direction as startPosition.

When I transform it a second time, however, transform.forward is not equal to targetPosition! However, targetRotation * startPosition is equal to targetPosition. What am I doing wrong?

2

Got it. I had to apply the transform, like

transform.rotation = targetRotation * transform.rotation;