can any openGL ES guru help me out PLEASE :(.

Discussion in 'iOS Programming' started by GustavPicora, Nov 16, 2010.

  1. GustavPicora macrumors member

    Jan 22, 2010
    First of all, Im not very acquaintance with openGL ES, but I have t use it for what I need.

    Anyway, the thing is I need to draw 2 concentric circles with area between the 2 circumferences filled with a color and probably an alpha, but the middle of the inner circle has to be transparent.

    So I found out how to draw a circle and fill it up with a color. But Im in trouble, with the second circle. I can draw it on top, but of course if I don't put any color what I see is the outer circle's color.... :S..

    I read somewhere that I will have to apply some mask or something, but that was all...:S

    Any help would be very appreciate it.

    Thx a lot

  2. lloyddean macrumors 6502a

    May 10, 2009
    Des Moines, WA

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