iPhone. Benefits to using Open GL ES over Core Graphics in a live multiplayer game?

Question

I am working on a live multiplayer version of a pictionary like game. It will be like draw something except live with 4 players and not turn based.

is there a benefit to writing my drawing algorythm in OpenGL ES vs CoreGraphics (Quatz 2D) in this situation since i have to be sharing it among 4 players over a network? Or as far as performance goes?

Answer 1

From my own experience in game development... the main reason is performance. Simple 2D game was VERY slow with core graphics and VERY fast with OpenGL ES (1.1).

There was a lot of issues with the positioning of images, strange lines between tiles but at the end we managed to fix it all. In reality, we built a small library of functions very similar to core graphics, only simpler and faster.

Also, portability with OpenGL is simple, with Core Graphics impossible.