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Thread: big performance problem when active objects overlap [257.9]

  1. #1
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    Exclamation big performance problem when active objects overlap [257.9]

    This problem has been much worsened by the latest beta (257.9), to the point where my game is practically unplayable, the framerate drops to about 10 FPS. This is running on a 4th generation iPad. Also tested on an iPhone 4 with the same (but worse) effect.

    What happens is when I have more than about 35 active objects overlappning eachother, the game just bogs down. If I move enough of the objects apart from eachother, FPS goes back up to 60, and when I start overlapping them again, the framerate drops steadily with each 2-3 objects that are overlapping.

    This is a CPU problem since I can see its only the CPU working in XCode.

    I tried removeing alpha channels thinking it could be the cause, it had no effect. I also tried remoing any event checking if the objects overlap with other objects, since I know that events checking for overlap can be slow if there's a lot of objects, but it had no effect whatsoever.

    So it seems to be some kind of unnecessary checks are running if objects are overlapping which bogs down the CPU?

    This is very much preventing my game from working properly..

  2. #2
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    Any info on this? Is this a known problem? Should I send a mfa to someone to check out?

  3. #3
    Clicker Fusion 2.5 DeveloperFusion 2.5 DeveloperAndroid Export ModuleiOS Export ModuleXNA Export Module
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    It sounds like collision masking, have you tried turning fine detection off for the objects?

  4. #4
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    fine collision is on but I fail to see how this could be an issue with 25-30 objects? I would really much prefer to keep it on, but I'll turn it off and see it it helps.. but really, this whole issue seems a bit strange to me, I have not experienced it before and It has gotten worse with the latest beta so I thought it could be something in the exporter that was the cause..

  5. #5
    Forum Moderator Fusion 2.5 DeveloperAndroid Export ModuleHTML5 Export ModuleiOS Export ModuleSWF Export ModuleXNA Export Module
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    Do you still experience this issue by disabling fine collision?

  6. #6
    Clickteam Clickteam
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    Could I have a look at your .mfa or .cci file with instructions how to reproduce?
    I might be able to figure out what exactly is causing the slowdown.

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