Antialiasing problem since 2.04?

This topic contains 5 replies, has 2 voices, and was last updated by  Xmas 8 years, 6 months ago.

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  • #29762

    dohrian
    Member

    Hello,

     

    I made a small example using OGLES-1.1_WIN_2.03.23.1162, it works well, then I used the latest built (OGLES-1.1_WINDOWS_PCEMULATION_2.04.24.0811) and saw antialiasing problems, do you know why?

     

    same application with OGLES-1.1_WIN_2.03.23.1162 DLL:

    and with OGLES-1.1_WINDOWS_PCEMULATION_2.04.24.0811:

     

    Thanks!

     

    Doh
    #32926

    Xmas
    Member

    Without knowing what your application is actually doing it’s hard to tell. Are the aliased objects textures that should be filtered?

    #32927

    dohrian
    Member

    I only use lines, here is a simple example using 2.03 dll:

     

     

    and the same using 2.04:

    #32928

    Xmas
    Member

    Are you using GL_LINE_SMOOTH?

    #32929

    dohrian
    Member

    Yes, but in 2.04 (with or without GL_LINE_SMOOTH) it looks like in 2.03 without GL_LINE_SMOOTH…

    #32930

    Xmas
    Member

    For the 2.4 SDK release we removed support for GL_LINE_SMOOTH and GL_POINT_SMOOTH from PC Emulation to more closely reflect POWERVR hardware capabilities, as these features are not supported on POWERVR GPUs. To get antialiased lines you will either have to enable multisampling or you can use a method similar to the one shown in the Antialiased Lines training course, using textured quads with alpha blending.

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