I need to draw a tic tac toe board in Xcode using Open gl es 2.0. I am new to graphics programming and can't find good tutroials for drawing a square in opengl es in ios. I looked at Ray's tutorials, which are good, however he covers drawing a rotating cube. All I want is a square. Does anyone know any resource that has a tutorial on drawing a square with Open Gl ES 2.0. Or can anyone post code that is able to draw a square in open gl es in ios.