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Question by b2hinkle · Nov 12, 2018 at 04:33 AM · c#rotationquaternionlerpeulerangles

Rotation jumping to a different rotation after rotating a certain amount

Here is the result of the script (what the component looks like)....... alt text

I made a copy rotation script where it takes a desired object and copies its rotation to the object that the script has. It works, but then once I added an influence variable so that the object rotates based on the influence, things started acting weird. It works perfectly if the influence is set to 1, or 0 (1 meaning that it copies the rotation fully, and 0 meaning it doesn't copy the rotation at all), but if I set influence to something in between such as 0.5 the rotation of the object makes jumps in rotation every now and then. It seems like if I rotate the copyObject too far, the current object will make a jump in rotation, and then if I go too far again, then it will make another jump (and so on).

Here is the script...........

public class RotationConstraintCD : MonoBehaviour {

 [SerializeField]
 bool freezeX;
 [SerializeField]
 bool freezeY;
 [SerializeField]
 bool freezeZ;

 [SerializeField]
 [Range(0, 1)]
 float influence;

 float desiredX;
 float desiredY;
 float desiredZ;

 float finalX;
 float finalY;
 float finalZ;

 [SerializeField]
 Transform copyTransform;

 void Update()
 {
     if (!freezeX)
     {
         desiredX = copyTransform.eulerAngles.x;
         finalX = (desiredX * influence);
     }

     if (!freezeY)
     {
         desiredY = copyTransform.eulerAngles.y;
         finalY = (desiredY * influence);
     }

     if (!freezeZ)
     {
         desiredZ = copyTransform.eulerAngles.z;
         finalZ = (desiredZ * influence);
     }
     

     transform.rotation = Quaternion.Euler (new Vector3(finalX, finalY, finalZ));
 }

}

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