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Thread: Fine detection on solid edged actives?

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    Clicker Fusion 2.5 MacFusion 2.5 DeveloperFusion 2.5+ DLCAndroid Export ModuleiOS Export ModuleInstall Creator Pro
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    Fine detection on solid edged actives?

    If I'm testing collisions on a solid edged active (like a square or rectangle) should I manually uncheck fine detection or is performance more or less the same? I have some actives I'm using for collision testing that have no fine detection areas (they fill every pixel of the active) and I'm wondering how much performance will be saved by manually checking these items?

    Also, if I'm not testing collisions on actives, does fine detection make any difference?

  2. #2
    Clicker Fusion 2.5 DeveloperAndroid Export Module
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    On PC - fine detection doesn't make that much difference. Most PC's have enough memory.

    On mobile - turn off fine detective as much as you can - that really makes a big difference in performance.

    As far as I understand it - Fusion uses the bounding box around the object if fine detection is turned off - so turning it on or off on a square / rectangular object would make no difference.

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    Clicker Fusion 2.5 MacFusion 2.5 DeveloperFusion 2.5+ DLCAndroid Export ModuleiOS Export ModuleInstall Creator Pro
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    Quote Originally Posted by Janette5 View Post
    so turning it on or off on a square / rectangular object would make no difference.
    Ah, but would it? If Fusion is still calculating fine detection, whether it's a square or rectangle would still require fusion to figure this out the slow way?

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    Clicker Fusion 2.5 MacFusion 2.5 DeveloperFusion 2.5+ DLCAndroid Export ModuleiOS Export ModuleInstall Creator Pro
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    @Yves does it make any difference to performance if solid actives have fine detection left on?

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    Well it's what Janette said. On Windows maybe not too much, especially with solid actives. On other platforms like Android it may have an impact yes. Though in theory the impact should be limited with solid actives. In any case yes it's always better if you can turn Fine collisions off.

    A possible issue though, on other platforms like Android (not iOS I think) if those active objects without "Fine collisions" are rotated the collision will be calculated with the global bounding box (instead of the rotated rectangle).

    Also, if I'm not testing collisions on actives, does fine detection make any difference?
    Of course not.

  6. #6
    Clicker Fusion 2.5 MacFusion 2.5 DeveloperFusion 2.5+ DLCAndroid Export ModuleiOS Export ModuleInstall Creator Pro
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    Thanks, I assumed that using fine detection would cause some significant extra work for fusion to try and figure out if it's a solid first, I could probably use profiller to find out exactly how much of an impact on windows.

    Quote Originally Posted by Yves View Post
    Of course not.
    Nice, so Fusion doesn't bother calculating collision boxes unless an active's collision is tested, good to know.

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