Making a smooth camera translation and rotation, C#

Questions & Answers
1

Hey there!

I’m trying to make a smooth camera translation and rotation, where the camera with the Script moves to a set of pre-determined coordinates after the pressing of a button. I’ve part of it working, however, when I press to advance, it looks more like changing the slide of a presentation then actually a smooth translation/rotation. Here’s the code:

 void MoveObject (Transform thisTransform, Vector3 startPos, Vector3 endPos, Quaternion startRot, Quaternion endRot, float time)  	{
	    float i = 0;
	    float rate = 1/time;
	    while (i < 1)  		{
	        i += Time.deltaTime * rate;
	        thisTransform.position = Vector3.Lerp(startPos, endPos, i);
	thisTransform.rotation = Quaternion.Slerp (startRot, endRot, i);
	        
	    } 	}

So, what do I need to change in order for it to work?

Thanks in advance.

JPB18

2

This function should be a coroutine to work smoothly: each while iteration should wait for the next frame (which means yield). You should also have a bool variable to tell you when the coroutine is running - coroutines run automatically in the background, and you will need some way to know when MoveObject has finished:

    bool moving = false;
    
    IEnumerator MoveObject (Transform thisTransform, Vector3 startPos, Vector3 endPos, Quaternion startRot, Quaternion endRot, float time){
        moving = true; // MoveObject started
        float i = 0;
        float rate = 1/time;
        while (i < 1)         {
            i += Time.deltaTime * rate;
            thisTransform.position = Vector3.Lerp(startPos, endPos, i);
            thisTransform.rotation = Quaternion.Slerp (startRot, endRot, i);
            yield return 0;
        }
        moving = false; // MoveObject ended
    }

    // call it with StartCoroutine:

    if (!moving){ // never start a new MoveObject while it's already running!
        StartCoroutine(MoveObject(....));
    }