Smoothdamp

[benswinden]

I'm using Vector3.SmoothDamp to do smooth camera movement with a tk2dCamera. As the camera moves, all my sprites jiggle slightly. Can you give any insight into why this is happening and how I can prevent it? Here is the code i'm using to move the camera.

Code: [Select]

Vector3 point = camera.WorldToViewportPoint(targetTransform.position);
Vector3 delta = targetTransform.position - camera.ViewportToWorldPoint(new Vector3(0.5f, 0.5f, point.z)); //(new Vector3(0.5, 0.5, point.z));
Vector3 destination = transform.position + delta;
transform.position = Vector3.SmoothDamp(transform.position, destination, ref velocity, dampTime);

[unikronsoftware]

Are you doing this in FixedUpdate?

[benswinden]

Nope

[unikronsoftware]

You should try it in fixedupdate - this usually improves things massively.
Also check unity answers for solutions to this - its a common issue people encounter moving cameras in Unity and there are lots of solutions and workarounds you can find if fixedupdate isn't good enough for you.

[profanicus]

You should also try camera movement in LateUpdate. FixedUpdate didn't work so well for me back when I did my current camera follow, as it's called before Update and on a different timer, whereas LateUpdate will be called after all your objects have been Updated.

Also you could try changing SmoothDamp to a regular Lerp with a deltaTime, from memory I had troubles getting SmoothDamp to actually provide a smooth camera.

[benswinden]

Thanks for the advice guys, i understand now that this isn't a tk2d issue so I appreciate you taking some time to help out.

Neither FixedUpdate or LateUpdate made any difference with the assets moving unfortunately. I also tried using Lerp rather than SmoothDamp however the movement it causes isn't smooth enough for what I need to use it for.

I'm unsure where to start looking on the forums in order to solve this problem since I really don't understand why moving the camera is causing the assets to shake the way they are. Any suggestions would be greatly appreciated.

[unikronsoftware]

The assets aren't shaking - they're not moving are they? Its just the camera movement causes the assets to appear jerky.
http://forum.unity3d.com/threads/130920-How-to-smooth-damp-towards-a-moving-target-without-causing-jitter-in-the-movement
Theres a long discussion about it there, and there are loads more discussion on answers.unity3d.com - camera jitter might be a good place to start?