up-to-date simple OpenGL ES tutorial / template for iOS -

at moment can draw route on map. on map can zoom , can pan. if route big goes slow. therefor want opengl.

from map can convert coordinatetopixel , current zoom. thought best base translation , zoom on transformation matrix.

i never worked opengl before. have been reading stuff last few hours stuff read outdated or goes things don't care shaders.

can provide me resources simple stuff on image?

i never worked opengl before.

you asking lot, , mean lot, of work if want switch using native ios drawing methods using advanced real-time rendering system don't know yet.

i agree brad larson going go further , faster leveraging tools in ios purpose. however, not mean can't improve performance while using them.

i have found when using core graphics complicated drawing, can dramatically reduce time takes render drawing drawing on background thread. , apple makes much easier learn , use grand central dispatch time take of in opengl.

i learned how use dispatch queues single purpose of making drawing go faster. simple technique render in background, take results main thread displaying them. since have drawing code figured out, won't have work take step, , think impressed performance.

i saw improvement of @ least 5 - 10 times in drawing speed when implemented core graphics drawing dispatch queues. awesome.