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When I rotate my object using this script...

function RotateObject (thisTransform : Transform, degrees : Vector3, seconds : float) {
    if (rotatingNew) return;
    rotatingNew = true;

    var startRotation = thisTransform.rotation;
    var endRotation = thisTransform.rotation * Quaternion.Euler(degrees);
    var t = 0.0;
    var rate = 1.0/seconds;
    while (t < 1.0) {
        t += Time.deltaTime * rate;
        thisTransform.rotation = Quaternion.Slerp(startRotation, endRotation, t);
        yield;
    }

    rotatingNew = false;
}

...the object rotates on it's local axes instead of the world axes.

What is a fairly simple way to get this to rotate on World Axes?

Thanks in Advance =)

Answer 1

0

Try changing this:

var endRotation = thisTransform.rotation * Quaternion.Euler(degrees);

To this:

var endRotation = Quaternion.Euler(degrees) * thisTransform.rotation;

answered Jan 09 '11 at 04:05 AM

Jesse Anders
7.3k ● 7 ● 17 ● 48

Thank You! This was much simpler than I thought it would be.

Jan 09 '11 at 04:36 AM Heratitan

Could you explain what is the difference between these 2 orders?

May 10 at 08:58 PM toum

(comments are locked)

Answer 2

After lots of testing, the pins remain in place, but following the combination of rotation is complete, the cube undergoes some rotation along the Y axis that is manipulating the "wheel" of rotation Z or Y. And I can not understand where the problem. Here is the code used ..

void Update () {
         if(switchControl == true && curTarget != null){
         if(curTarget.name == "RedR" || curTarget.name == "GreenR" || curTarget.name == "BlueR"){
          Quaternion curPlanchTargetRot = Quaternion.Euler(angles);
           curPlanche.transform.rotation = Quaternion.Slerp(curPlanche.transform.rotation, curPlanchTargetRot, 10f*Time.deltaTime);    
         }
       }

    void onMouseRotateDrag ()
    {
       float posInitX = initMousePosX;//position du curseur au moment du clic
       float posInitY = initMousePosY;
       float posCurX = Input.mousePosition.x;//position du curseur pendant le drag
       float posCurY = Input.mousePosition.y;

       differenceX = Mathf.Floor((posCurX-posInitX)/150);
       differenceY = Mathf.Floor((posCurY-posInitY)/150);
       curDifference = differenceX;
       if(Mathf.Abs(curDifference)<Mathf.Abs(differenceY)){//floor() valeur inf et ceil() valeur sup
       //    curDifference = differenceY;
       }

       if(curDifference != curApplyDifference){
         if(curTarget.name == "RedR"){ // axe X
          angles.x = ((-curDifference*90) % 360);
          curApplyDifference = curDifference;
         }else if(curTarget.name == "GreenR"){ // axe Y
          angles.y = ((-curDifference*90) % 360);
          curApplyDifference = curDifference;
         }else if(curTarget.name == "BlueR"){ // axe Z
          angles.z = ((-curDifference*90) % 360);
          curApplyDifference = curDifference;
         }
         posInitX = Input.mousePosition.x;
         posInitY = Input.mousePosition.y;
       }
    }

I need some help ... It's been three days I'm looking without much success

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How do I rotate on World Axes with Quaternion.Slerp?

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