Display shaking when moving camera

Hi guys,

First of all, i'm not good in english and i'm not sur about "shaking" translation
By Jerking i mean : it's a bit like if i had 20FPS.

I'm working on a 3D Isometric game.
With a static camera, everything is OK. But when i add this little script to my update void in my character Gameobject, my display is "shaking". The camera movement is ok. But i don't understand why this "shake" come.

Code (CSharp):

1.  
2. this._camera.transform.position = new Vector3(this.transform.position.x, this._camera.transform.position.y, this.transform.position.z-10);

My computer is pretty low. But i have juste a 500 units plan with a Character model that i move. And my camera that i'm trying to moving.

Here my camera properties :


I don't know how to show you what my problem looks like.

Maybe it's not a good idea to move camera like this ?

Thanks.

 

That script is fine, maybe the one shaking is the player. Jerkin can mean something else .

 

Thanks for you translation help. I changed my post.
Should i move my player in fixedupdate ? I use transform.translate in udpatde void.

Bellow my move void :

Code (CSharp):

1. public void move () {
2.         float translateX = this._currentSpeedX * Time.deltaTime;
3.         float translateY = this._currentSpeedY * Time.deltaTime;
4.         float translateZ = this._currentSpeedZ * Time.deltaTime;
5.  
6.         if (Math.Abs(translateX) < this._minTravelDistance) { translateX = 0f; }
7.         if (Math.Abs(translateY) < this._minTravelDistance) { translateY = 0f; }
8.         if (Math.Abs(translateZ) < this._minTravelDistance) { translateZ = 0f; }
9.  
10.         this.transform.Translate(translateX, translateY, translateZ, Space.World);
11.     }

 

You seem to be doing it right, is your player shaking too? Look at him trough the scene view, not the Game view.

 

Hi guys and thanks for your answer.

I checked that and my character is not shaking in scene view. Maybe the walk animation make him lean on left or right on each step ? And this little lean could change my transform.position a bit ? Does animation change transform.position of there rigged GameObject ?

My Camera is 11 unity on Y axe. And moving around 0-500 on X and Z axes. Rotation doesn't change. Bellow my camera default settings.

 

My camera is not attached to the character. It has his own script to follow the character.

Code (CSharp):

1. this._camera.transform.position = new Vector3(this.transform.position.x, this._camera.transform.position.y, this.transform.position.z-10);

I don't know what is dampening and lerping. I'm gonna check that and let you know.
Thanks for your help.

 

To the best of my knowledge, if you move a character in Update, you should use LateUpdate for the camera.

(FixedUpdate moves should move the camera in fixed update).

Note: This isn't meant to replace the suggestion of smoothing/dampening, etc..

 

I didn't know that LateUpdate exists but you are totaly true. By the way they tooke this example to explain this function in unity doc : https://docs.unity3d.com/ScriptReference/MonoBehaviour.LateUpdate.html

I'm gonna change this as well let you knwo if it's better combine with dampening and lerping.

 

So I changed my update void to LateUpdate void. It doesn't look like it change anything but i let this because it's better according to the unity doc.

I changed my moving camera script as bellow and it's better after few try to find the good lerp speed :

Code (CSharp):

1. Vector3 targetPosition = new Vector3(this.transform.position.x, this._camera.transform.position.y, this.transform.position.z) + this._gap;
2. this._camera.transform.position = Vector3.Lerp(this._camera.transform.position, targetPosition, this._lerpSpeed);

The other think that it change because i'm using a low lerp speed (0.1f) is that my camera have a cool delay effect when i move my character. Wasn't looking for that but it's pretty nice.

Thanks for your help guys. It look like you solved my problem.

 

This is really old post, but I got the same problem lately ,and I fixed my camera shaking problem using LateUpdate and Time.delta time for the camera smooth damping. so my case was
transform.position = Vector3.SmoothDamp(transform.position, finalPosition, ref refVelocity, camSmooth * Time.deltaTime);
here Just using camSmooth without the Time.deltaTime was the reason for my camera shaking