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    <p>If you register as a developer at the <a href="http://developer.apple.com/devcenter/ios/" rel="noreferrer">iOS Developer Center</a> (free), you can download Xcode and the iOS SDK (again, for free when you get Xcode 3), which includes a simulator capable of OpenGL ES 2.0. This of course assumes you have a Mac to run that all on.</p> <p>Once you have the SDK, you can simply start up Xcode and create a new application based on the OpenGL ES Application template. This application will be a fully functional OpenGL ES 1.1 and 2.0 iOS application that you can build and run in the simulator. You can ignore all of the iOS-specific setup code and focus on the <code>-drawFrame</code> method in the <code>xxxViewController.m</code> class, which is where the OpenGL ES 2.0 drawing code lies.</p> <p>This can be a pretty quick environment to set up for playing with OpenGL ES 2.0 shaders. I've also tried out the PowerVR SDK package that trenki suggests, and it is a little more involved to get something set up with that. If you're on Windows, it will be a lot more viable of a solution than the Mac-based iOS SDK I describe here.</p> <p>One other shader development tool that can come in handy for prototyping on the Mac is Quartz Composer. It comes along with Xcode, and provides a visual prototyping environment for all sorts of effects, including OpenGL shaders. I demonstrate an example of doing this kind of prototyping in an article I wrote <a href="http://sunsetlakesoftware.com/2010/10/22/gpu-accelerated-video-processing-mac-and-ios" rel="noreferrer">here</a>. Desktop GLSL and the implementation in OpenGL ES differs slightly, but much is the same between the two.</p> <p>While targeted at iOS, I taught a class on OpenGL ES 2.0 recently as part of a course that can be downloaded <a href="http://itunes.apple.com/WebObjects/MZStore.woa/wa/viewPodcast?id=407243028" rel="noreferrer">from iTunes U</a> for free. It might helpful in getting up to speed on shaders.</p>
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    1. USBrad Larson
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    1. COI watched the lecture and the tip about Quartz Composer was great!
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      1. USPetteri Hietavirta
 

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A row detail

Detail views are divided into sections. All the information in the data section comes from columns in the selected row. The other sections display data from other, related rows.

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