Optimize 2D menu game by disabled raycast target

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Hello,

I am making a 2D game with many menu page (50) in the same scene. I only activate menu page at once and popup, footer and header.

But I noticed slow down on Android. I wonder if disabled all raycast target (in UI Image) that are not usefull will help to optimize?

I work with Unity 5.2. I have many sprites using sprite packer with default compression activated.

Answer 1

Answer by TobyKaos · Oct 26, 2015 at 08:33 AM

I have tested with profiler and noticed that event system script is the bottleneck. When I desactivate EventSystem object(more precisely Event System script), then fps is 100.

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npatch · Oct 26, 2015 at 08:39 AM 0

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EventSystem is what keeps track of the collision events on UI. If anything its important. http://docs.unity3d.com/ScriptReference/EventSystems.EventSystem.html

TobyKaos npatch · Oct 26, 2015 at 09:04 AM 0

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Yes I know it is important but take 93.4% of CPU usage. $$anonymous$$aybe a bug or maybe I must inactive all raycast target checkbox that are note use for UI button, list, ...

As I tell before I have a huge menu scene with 50 menu pages. I desactivate all page except the one currently viewed or 2 if I run a transition.

Then maybe EventSystem script pass through all gameobject even if desactivated??

npatch TobyKaos · Oct 26, 2015 at 09:10 AM 0

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50 menu scenes ? This is probably the reason why...$$anonymous$$aybe you can optimize your menu ins$$anonymous$$d. Like deactivate the menu scenes that are not being used at all and activate them only when they're supposed to be active or at least during play that they're accessible.

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Optimize 2D menu game by disabled raycast target

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