- http://stackoverflow.com/questions/3512456/how-to-draw-smooth-line-with-antialiashttps://stackoverflow.com/questions/3512456/how-to-draw-smooth-line-with-antialias
- How to draw a smooth circle in Android using OpenGL?
- http://stackoverflow.com/questions/4934367/how-to-get-rid-of-jagged-edges-in-android-opengl-eshttps://stackoverflow.com/questions/4934367/how-to-get-rid-of-jagged-edges-in-android-opengl-es
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