Simplest movement possible: Stutter!

Getting Started
1

Hello,

I want to move some GameObjects with a fixed speed and wrote the simplest code possible:

void Update() {
    if(gameManager == null)
        return;
    foreach(ManipulatorObject manipulatorObject in obstacles) {
        // go is the GameObject
        manipulatorObject.go.transform.Translate( Vector3.back * 4.0f * Time.deltaTime );
    }
}

Surprisingly the movement of the GameObject is stuttering! They move and suddenly I can see a mini lag. I don’t understand how this super simple code without any physics can lead to stuttering movement. I am trying to fix this for hours and at this point really need some help!

2

Is it the same in a build? Don’t check for such things in editor.

If you’ve done that, you could also try switching to Time.smoothDeltaTime;

If you’ve also tried that, then read this thread : Time.deltaTime Not Constant: VSync CameraFollow and Jitter

3

Hello AcidArrow,

I have tried smoothDeltaTime and the movement is also stuttering.

Until now I only tested it in Editor PlayMode. Is the performance in PlayMode from within Editor not very meaningful?

4

Yep, exactly.

5

I just tested it with “Build and Run” (for the first time ever) and its actually smooth! Oh man, can’t believe I have tried to solve a problem for hours that isn’t even there! Thank you very much! :slight_smile:

1 Like
6

Just one last question: Somehow my objects don’t react on mouse clicks (Input.GetMouseButtonDown(0)) so I wanted to debug my build via logfile. I found a logfile output_log.txt under C:\Users\MyName\AppData\LocalLow\DefaultCompany\MyGame, but I does not contain any of my Debug.Log prints. Do I need any settings to see my Debug logs in output_log.txt?

7

Try : C:\Users\username\AppData\LocalLow\CompanyName\ProductName\Player.log

CompanyName and ProductName is what you have set up in your Unity project.

(from)

8

I don’t have a Player.log in the ProductName Folder (only file output_log.txt and folder “Unity”). Why is it missing? (“Use Player Log” is checked in Player settings)

9

You’re probably looking in the wrong folder then. If you’re having trouble finding it, you can force the log to a specific location by specifying where you want the log file from the command line.

MyCoolBuild.exe -logFile c:\CantMissThisLogFileNow.log

https://docs.unity3d.com/Manual/CommandLineArguments.html