Question by UnityDevelopper · May 31, 2014 at 05:28 PM · quaternion lerp

Quaternion.Lerp is not working ,causing weird rotations

Here the part of the code that deals with rotation(no error, just weird rotation are produced, a back and forth rotation in just 1 degree);

 while (main.transform.position!= new Vector3(5,5,5)&& main.transform.rotation!=Quaternion.Euler(new Vector3(0,-180,0))){
             main.transform.position=Vector3.Lerp (main.transform.position,new Vector3(5,-10,-5),Time.deltaTime);
             main.transform.rotation=Quaternion.Lerp (transform.rotation,Quaternion.Euler(new Vector3(0,-180,0)),Time.deltaTime*5);
             yield return null; 
                 }
 
     
         yield return null;
         }

Can anyone tell me what wrong or can anyone tell me a better approach to deal with when switching rotations;

Add comment · Show 3

iwaldrop · Jun 01, 2014 at 12:31 AM 0

A common beginner mistake is to lerp between the current value and the target value. Lerping occurs between two fixed points, such as an initial value and a target value. Ex:

 Vector3 initialPosition = transform.position;
 Vector3 targetPosition = transform.position + new Vector3(5,5,5);
 while (!isDone)
 {
     transform.position = Vector3.Lerp(initialPosition, targetPosition, SO$$anonymous$$E_LERP_VALUE);
     yield return null;
 }

 transform.position = targetPosition;

robertbu · Jun 01, 2014 at 02:22 AM 0

A common beginner mistake is to lerp between the current value and the target value.

@iwaldrop - not true. Lerping from the current value to the end value is a non-traditional use of Lerp, but when used this way, produces an eased rotation. @UnityDevelopper - Note I always use Slerp for this particular rotation.