60 fps to 30 fps makes movements jittery on mobile device

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Hey guys,I have a very basic question. I have an empty scene and a simple cube in front of the camera. I apply a very basic animation to the cube so that it moves from 0 to 1 and it is seen clearly in front of the camera. When i build it and play at 60 fps, the movement of the cube is perfectly smooth. However, when i play it at 30 fps, the movement of the cube is prominently jittery(i mean not smooth) However, i know lots of games which has very smooth movements at 30 fps. Additionally, i watch lots of mobile game benchmarks which also run at 30 fps and still gives very smooth experiences. Can someone simply explain what i am doing wrong?

Answer 1

Answer by andrew-lukasik · Sep 02, 2021 at 03:18 PM

30 fps can be perfectly smooth and fine. This jitter movement at 30 fps is something manufactured by either your script (especially if this script is directly controlling object position/rotation) or peculiar scene setup (like camera parented to a RigidBody).

What's more, I bet this problem was present at 60fps - just was this much harder to spot.

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Gokcan · Sep 02, 2021 at 03:24 PM 0

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Hey, i dont have any script in the scene, only an animation controlling the position as i said. On the other hand, scene is unitys default scene, camera background is default solid color. Additionally, build settings are unitys default settings. You can try it by youself also.

andrew-lukasik Gokcan · Sep 02, 2021 at 03:28 PM 0

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I tried, at least once in last 10 years, and I've seen no such thing. I was seeing jitter many times and it was always because of something I did wrong.

Gokcan andrew-lukasik · Sep 02, 2021 at 03:57 PM 0

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Can you pls inform me when you find any reasonable and clear answer? Thanks.

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60 fps to 30 fps makes movements jittery on mobile device

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