2D game with high FPS feels jittering/stuttering/laggy

Questions & Answers
1

Hello, I’m making this 2D game where I use rb2d.AddRelativeForce(Vector3.up); (rb2d is rigidbody) to fly with my character on button hold (he falls when the button is released) and that flying feels kinda jittering/stuttering/laggy on my android phone even tho the FPS is 60. Sometimes I feel it in the editor too.

My settings on rigidbody are: Mass: 0.05, Linear Drag: 0, Angular Drag: 0.05 and Gravity Scale: 1.

This is the Profiler:

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180566-profiler.png1263×531 71.7 KB

I tried to deal with this WaitForTargetFPS problem but I can’t do anything about it. VSync Count is set to Don’t Sync.

I would appreciate any help!

2

It looks like your Physics2DFixedUpdate is not hogging much time, so I don’t think it’s a performance issue. Are you detecting the button in Update() or FixedUpdate()?

3

The code in your comment shows you are moving the rigidbody in the Update() function. All physics based calculations should be done in FixedUpdate() and any movement of a rigidbody should be multiplied by Time.deltaTime to be framerate independent when making calculations (e.g. speed).