Question by jackforyou · Aug 22, 2016 at 03:05 PM · laggy jittering jerky slow game

Jerky, jittering, lagging Movement on iPhone

I tried to optimise the game in several ways, but I cannot make the game look smooth. Is there someone who have the same issue as me? Help me, please

This is how the game looks like on Mac https://youtu.be/Wt64e4M_3a4

This is how the game looks like on iPhone https://youtu.be/sE-Wqxb8148

alt text

screen-shot-2016-08-22-at-104603-pm.png (71.1 kB)

screen-shot-2016-08-22-at-105218-pm.png (30.6 kB)

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Jessespike · Aug 22, 2016 at 05:02 PM 0

Can you point out the problem? I don't see a difference in the two videos, except for frame-rate.

The spinning windmills have a slight jerk after each rotation, but this can been seen in both versions, it's less noticeable on the $$anonymous$$ac, because of better frame-rate.

jackforyou Jessespike · Aug 22, 2016 at 05:50 PM 0

How can I make the spinning of windmill has the same rate as $$anonymous$$ac. I think 30 fps are enough for iPhone, but the windmills don't look like they spin at 30 fps. $$anonymous$$ac version doesn't have any jerks, but iPhone version has jerks in every scene in first scene, menu scene, and even ex1 scene.

Jessespike · Aug 22, 2016 at 06:46 PM 0

I see it now, at the start of the scenes, it pauses for a split second. Unfortunately, I don't think this problem can be completely avoided.

You can try looking at the Start functions and make sure they aren't doing anything that would cause the hiccup. For example, many scripts will use GetComponent in Awake or Start, but many times these references can be hooked up beforehand in the inspector.

Another thing that might help, is after a scene switch or loading screen, make the game wait an extra frame or two so the scene can finish up initializing.

I wonder if disabling Dynamic Batching would help, since it has to subscribe all of the applicable GameObjects on start.

Using many UI canvases can cause framerate to drop, $$anonymous$$aybe the UI layout can be improved.