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Smoothly following a moving object

I want the main camera to follow a spaceship. I attached the following code to the camera:

void Update ()
// target is the spaceship's transform
    Vector3 wantedPosition = target.TransformPoint (0, height, distance);
    transform.position = Vector3.Lerp (transform.position, 
wantedPosition, Time.deltaTime * damping);
    // ... code for rotation...

However, as the target (my spaceship) moves forward, the camera shakes unpleasantly, I believe due to the Lerp function. Is there a way to avoid this and just have the camera move the same way as the spaceship does? Thanks.

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asked Dec 28, 2010 at 05:22 PM

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5 answers: sort voted first

You could use the 'built-in' script "Smooth Follow".

Attach the script (Component/Camera-Control/Smooth Follow) to your camera and adjust the values in the inspector.

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answered Dec 28, 2010 at 05:31 PM

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I tried to adjust the parameters, but still I always get the camera inside the spaceship (which is not what I wanted: I would like a third-person point of view) and the shaking effect. Is there something I am missing?

Dec 28, 2010 at 05:48 PM Silvia

IN which asset can we find the Smooth Follow script?

Nov 05, 2012 at 09:32 PM Karsnen_2
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For the 'shaking' problem, try moving the code you posted from Update() to FixedUpdate().

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answered Dec 28, 2010 at 07:57 PM

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Jesse Anders
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Mmh.. the problem is even worse now... Can it depend from my computer being not enough powerful?

Dec 29, 2010 at 12:01 PM Silvia
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You could just use this script that I wrote - it's not the fanciest of things but it gets the job done

I had the same problem with a spaceship shaking too

 var playerMarker : Transform;
 function LateUpdate () {
     transform.position = Vector3.Lerp(transform.position, playerMarker.position, Time.deltaTime * 100);
     transform.rotation = Quaternion.Lerp(transform.rotation, playerMarker.rotation, Time.deltaTime * 100);
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answered May 17, 2012 at 03:45 PM

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Ben Ezard
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// A simple smooth follow camera, // that follows the targets forward direction

var target : Transform; var smooth = 0.3; var height = 0; var distance = 5.0; private var yVelocity = 0.0;

function Update () { // Damp angle from current y-angle towards target y-angle var yAngle : float = Mathf.SmoothDampAngle(transform.eulerAngles.y, target.eulerAngles.y, yVelocity, smooth); // Position at the target var position : Vector3 = target.position; // Then offset by distance behind the new angle position += Quaternion.Euler(0+height, yAngle, 0) * Vector3 (0, 0, -distance); // Apply the position transform.position = position;

 // Look at the target


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answered May 18, 2012 at 12:26 AM

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Why don't you use Unity 5's built in Smooth Follow script from the docs? It has no lagging issues for a powerful PC, but if you have issues, use FixedUpdate() instead of Update().

 var target : Transform;
 var smoothTime = 0.3;
 private var velocity = Vector3.zero;
 function Update () 
     // Define a target position above and behind the target transform
     var targetPosition : Vector3 = target.TransformPoint(Vector3(0, 5, -10));
     // Smoothly move the camera towards that target position
     transform.position = Vector3.SmoothDamp(transform.position, targetPosition, velocity, smoothTime);

It will not work if you have another script to control camera movement of ANY kind, so this is best used for a 2D game.

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answered Jul 08 at 09:02 AM

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Dusker Studios
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asked: Dec 28, 2010 at 05:22 PM

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Last Updated: Jul 08 at 09:02 AM