Writing in OpenGL ES

[kingbombs]

Hey,

So i have been searching and searching the internet looking over Bitmapped fonts tutorials for writing text with OpenGL.
All i want it to do is show an integer (my frames per second) in one corner.
And then at 1 or 2 other places on the screen just another integer that is 2 or 3 digits big.

I don't care for changing and creating loads of fonts or changing the font.
I just want to display the integers on the screen without having a frames drop (apparently using a UILabel will cause that?)

If anyone can point me in the right way of a tutorial that is useful (or provide code samples) and doesnt bother with how you can change fonts or one that is just simple to use, i have tried two or three and both do it quite differently from one another but requries me to change most of my code as well as use external programs to download fonts (kinda pointless for me)

[NewiPhoneDeveloper]

Originally Posted by kingbombs

Hey,

So i have been searching and searching the internet looking over Bitmapped fonts tutorials for writing text with OpenGL.
All i want it to do is show an integer (my frames per second) in one corner.
And then at 1 or 2 other places on the screen just another integer that is 2 or 3 digits big.

I don't care for changing and creating loads of fonts or changing the font.
I just want to display the integers on the screen without having a frames drop (apparently using a UILabel will cause that?)

If anyone can point me in the right way of a tutorial that is useful (or provide code samples) and doesnt bother with how you can change fonts or one that is just simple to use, i have tried two or three and both do it quite differently from one another but requries me to change most of my code as well as use external programs to download fonts (kinda pointless for me)

You could try the Texture2D class from the CrashLanding project. I've only used to to draw textures so far, but it has a convenient way to render strings too.

The method it uses, goes like:

- (id) initWithString:(NSString*)string dimensions:(CGSize)dimensions alignment:(UITextAlignment)alignment fontName:(NSString*)name fontSize:(CGFloat)size

If you don't have the Texture2D class, PM me with your email adress and I'll send you over the CrashLanding project folder. I guess Apple pulled it off the example's website a while ago.

[kingbombs]

Originally Posted by NewiPhoneDeveloper

You could try the Texture2D class from the CrashLanding project. I've only used to to draw textures so far, but it has a convenient way to render strings too.

The method it uses, goes like:

- (id) initWithString:(NSString*)string dimensions:(CGSize)dimensions alignment:(UITextAlignment)alignment fontName:(NSString*)name fontSize:(CGFloat)size

If you don't have the Texture2D class, PM me with your email adress and I'll send you over the CrashLanding project folder. I guess Apple pulled it off the example's website a while ago.

Hey i don't really want to use the Texture2D class.
If i do use it though, will apply still approve my app?
Only reason i ask is because the tutorials: iPhone opengl es tutorial series ?
the author mentioned two books he has seen use apple undocumented code, and that won't let your apps be approved.
I don't know if he was refering to that but if he is then don't want to use something that wont get approved.

[NewiPhoneDeveloper]

Originally Posted by kingbombs

Hey i don't really want to use the Texture2D class.
If i do use it though, will apply still approve my app?
Only reason i ask is because the tutorials: iPhone opengl es tutorial series ?
the author mentioned two books he has seen use apple undocumented code, and that won't let your apps be approved.
I don't know if he was refering to that but if he is then don't want to use something that wont get approved.

Now you got me worried Why shouldn't Apple approve apps, using the Texture2D class? Is there something wrong with it? No, I guess you missunderstood that. The Texture2D class was originally written by Apple and in my opinion it's a great way to get fast 2D drawing results in openGL. I've successfully tested it on various versions of the SDK and it works just fine.
No worries, using this class won't get you into any trouble.

[kingbombs]

EDIT:: Ok asked on irc and apparently thats not true i might look into it then

It looks like for Bitmapped drawing im going to have to import some other program anyway.

[mauriceatron]

Originally Posted by kingbombs

EDIT:: Ok asked on irc and apparently thats not true i might look into it then

It looks like for Bitmapped drawing im going to have to import some other program anyway.

kingbombs,

there's no problem with using Apple code like Texture2D. The only issue that was being referred to is the use of Apple's Private API's.

If you want to render simple text, there will be no problem using the text portion of the texture 2D class.

For further reading of the whole private API issue and the app store, read this:

Unpublished iPhone API crackdown in progress - Ars Technica