Thursday, September 10, 2009

3.1 OpenGL ES Template

I've had some questions about whether I was going to upgrade my OpenGL ES template any more. I probably will, but it won't be any time soon. I did want to just point out that the iPhone SDK 3.1 is now GM and I can point you to the excellent OpenGL ES Application template in 3.1. I haven't had time to use this template extensively, but it looks to be setup really well for supporting both OpenGL ES 1.1 and OpenGL ES 2.0, so you might want to upgrade if you haven't and check it out.



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Administrator said...

Hey Jeff,

I have been following your tutorials about 3D OpenGL ES very closely and I thought I would share a bit of knowledge that I have gained along the way.

In the GLView.h/GLView.m, you use some things like kRenderingFrequency, animationTimer, animationInterval. After the release of OS 3.1, Apple included a much better system for managing the firing of the run loop called CADisplayLink.

http://developer.apple.com/iphone/library/documentation/QuartzCore/Reference/CADisplayLink_ClassRef/Reference/Reference.html

It is much more efficient because it is directly in sync with the screen refresh rate with no chance of other operations going on in the main thread and hindering performance

Just wanted to point this out

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