Quaternion.Slerp and Quaternion.Euler problem

Question

Greetings.

I am making a script that uses Quaternion.Slerp command. It works, but I need to constrain the x and z-axis rotation so that only y-axis rotates. I've tried this with Quaternion.Euler but it didn't work. Here is a snippet of my script.

 private var speed = 5;
     var newRotation = Quaternion.LookRotation(targetObj.position - head.transform.position);
     
     head.transform.rotation = Quaternion.Slerp(head.transform.rotation, Quaternion.Euler(0,newRotation.y,0), Time.deltaTime * speed);

Thank you in advance.

Answer 1

Answer by Yonlop · May 06, 2012 at 11:47 AM

Okay nevermind. I got it. Just specified the x and z initially and it works.

 var newRotation = Quaternion.LookRotation(targetObj.position - head.transform.position);
 newRotation.x = 0;
 newRotation.z = 0;
 
     head.transform.rotation = Quaternion.Slerp(head.transform.rotation, newRotation, Time.deltaTime * speed);

I'm just wondering if there is an overall implication to how the object react to other scripts, but it looks okay for now.

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Quaternion.Slerp and Quaternion.Euler problem

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