How to combine OpenGL ES template and Utility template?

[OMH]

I would like to have an OpenGL view with an utility application.

What I do: I create an OpenGL ES application template and a Utility Application template. I copy the files EAGLView.m and h, and the five ES*renderer.* files from the Opengl project to the utility project.

I copy these lines from the OpenGl project to the Utility project: (in utilityAppDelegate.m)

- (void)applicationDidFinishLaunching:(UIApplication *)application {
...
[glView startAnimation];
}

- (void) applicationWillResignActive:(UIApplication *)application
{
[glView stopAnimation];
}

- (void) applicationDidBecomeActive:(UIApplication *)application
{
[glView startAnimation];
}

- (void)applicationWillTerminate:(UIApplication *)application
{
[glView stopAnimation];
}

- (void)dealloc {
...
 [glView release];
...
}

And in the utilityAppDelegate.h I add:

@class EAGLView;
EAGLView *glView;
@property (nonatomic, retain) IBOutlet EAGLView *glView;

I go to the view's identity inspector, and change the class identity to EAGLview.

I open the mainview.xib and mainwindow.xib and drag the app_delegate from the mainwindow.xib, to be able to connect the glView outlet to the view. (Don't know if this is the way to do it, but that's the only way I could connect the glView variable to the view)

When I build and run, the multi colored square show up on the screen, but it does not animate!

When I debug, the glView variable is 0 in applicationDidFinishLaunching, and the startAnimation is not called. I suspect this has something to to with the way the outlet is connected to the view? Probably not connected. :-) The mistake is probably obvious, but I have only been 5 weeks on this platform.

Why is the glView variable not set?

Thank you!

[OMH]

Anybody has a clue?
I don't.
I thought this would be an easy question to answer. Mabe too easy?
I'm sure there are other beginners who wants a quick way of creating an OpenGL/utility app.

Yes!?

[sloth49]

You arn't really giving enough of your code.

The first things that pop into my mind are, your timer isn't set up, or your openGL code doesn't have a glRotate in it so your screen isn't rotating. Are you saying glView.animationInterval=2.0/60.0 at some point to set your frame rate?

Most likely something with the timer, because when you call stopAnimation, that will give you the square but not rotating.

[OMH]

Originally Posted by sloth49

You arn't really giving enough of your code.

The first things that pop into my mind are, your timer isn't set up, or your openGL code doesn't have a glRotate in it so your screen isn't rotating. Are you saying glView.animationInterval=2.0/60.0 at some point to set your frame rate?

Most likely something with the timer, because when you call stopAnimation, that will give you the square but not rotating.

Well, attached is the whole source. (not much)

The problem is that the glView is still 0 at applicationDidFinishLaunching, for some reason.

But if I, instead of using the view in MainView.xib, create a new view on top of the window in MainWindow.xib, and connect this view to outlet glView, then it works.
(need to set view in mainview.xib transparent to see the view that is behind)

So then the opengl works fine, but the mainview with the i-button, is gone.

What is the issue here? How to connect the mainview to the glView outlet properly?

[OMH]

I got the solution in another forum:
iphonedevbook.com • View topic - How to combine OpenGL ES template and Utility template?

Basically, just add the glView outlet to the MainViewController instead of the AppDelegate