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Are OnGUI() functions still a major performance hit?

Discussion in 'iOS and tvOS' started by avatara359, Jul 2, 2014.

  1. avatara359

    avatara359

    Joined:
    May 12, 2010
    Posts:
    41
    Years ago just having any script in your scene with an OnGUI() function in it was a significant performance hit on iOS. Was this ever fixed?
     
    avatara359, Jul 2, 2014
    #1

  2. DanielQuick

    DanielQuick

    Joined:
    Dec 31, 2010
    Posts:
    3,137
    Yes it is still a significant performance hit on any platform. In Unity 4.6 there will be a new Unity GUI (uGUI) to fix this.
     
    DanielQuick, Jul 2, 2014
    #2

  3. Eric5h5

    Eric5h5

    Volunteer Moderator Moderator

    Joined:
    Jul 19, 2006
    Posts:
    32,401
    No, OnGUI isn't that big of a performance hit. The OnGUI system was re-written in C++ a while ago. The new GUI in 4.6 is primarily for design reasons; writing a GUI entirely in code has its place but is far from ideal in many cases.

    --Eric
     
    Eric5h5, Jul 2, 2014
    #3

  4. avatara359

    avatara359

    Joined:
    May 12, 2010
    Posts:
    41
    I use NGUI for GUI. But some of my addons have OnGUI calls and I was wondering if I need to spend time cutting those out. Thanks.
     
    avatara359, Jul 3, 2014
    #4

  5. Eric5h5

    Eric5h5

    Volunteer Moderator Moderator

    Joined:
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    Very unlikely to be worth it.

    --Eric
     
    Eric5h5, Jul 3, 2014
    #5