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2D < 3D (Computational Question)

Discussion in '2D' started by renman3000, May 27, 2014.

  1. renman3000

    renman3000

    Joined:
    Nov 7, 2011
    Posts:
    6,680
    I am building a game that is 2D, however, I have always used 3D colliders etc. What I am wondering is, can one assume a world with 2D colliders etc will be easier on the engine? Since an axis is removed?
     
    renman3000, May 27, 2014
    #1

  2. Kurius

    Kurius

    Joined:
    Sep 29, 2013
    Posts:
    412
    From what I've read on these forums, there is negligible difference in performance between 2D and 3D in Unity. I believe this is because the 2D environment is still running on top of a 3D engine.
     
    Kurius, May 27, 2014
    #2

  3. renman3000

    renman3000

    Joined:
    Nov 7, 2011
    Posts:
    6,680
    Right.
    Thanks.
     
    renman3000, May 28, 2014
    #3

  4. shaderop

    shaderop

    Joined:
    Nov 24, 2010
    Posts:
    942
    While the graphics pipeline for 2D and 3D might be essentially the same, physics is a different story since the 2D physics engine uses Box2D, which is optimized for 2D and 2D only. So I would be very surprised if 2D colliders didn't perform a lot better than their 3D counterparts.
     
    shaderop, May 29, 2014
    #4