iphone opengl es how to add an image as the background? [closed] - iphone

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Closed 11 years ago.
this is a project of opengl es, you can run it on iphone sdk,
i want to know how to add an image as the background?
https://docs.google.com/open?id=0B8MGSbywP-HXY2YxYzk3YWItNzk3Zi00ZmNiLTk5NWYtOGY3NmU0OTRlYTM4
please give me source code.

By drawing the picture as the very first thing (in form of a textured quad). Disable depth testing and depth writes.
Update: Code for some project
Note: The actual code and structure strongly depends on the program in question!
// one possible structure
void draw(draw)
{
glClear(GL_DEPTH_BUFFER_BIT | GL_COLOR_BUFFER_BIT);
glDisable(GL_DEPTH_TEST);
glDepthMask(GL_FALSE);
draw_background();
glDepthMask(GL_TRUE);
draw_rest_of_scene();
}

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Closed 10 years ago.
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Closed 10 years ago.
In my app, I want to apply different video filters like: Fade in -Out,Snow fall,Rainbow,Fast Motion,Slow Motion,etc.
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It's difficult to tell what is being asked here. This question is ambiguous, vague, incomplete, overly broad, or rhetorical and cannot be reasonably answered in its current form. For help clarifying this question so that it can be reopened, visit the help center.
Closed 10 years ago.
Hi i'm developing an iPhone app with cocos2D framework for image rendering .
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It's difficult to tell what is being asked here. This question is ambiguous, vague, incomplete, overly broad, or rhetorical and cannot be reasonably answered in its current form. For help clarifying this question so that it can be reopened, visit the help center.
Closed 10 years ago.
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How to create app like iBooks [closed]

It's difficult to tell what is being asked here. This question is ambiguous, vague, incomplete, overly broad, or rhetorical and cannot be reasonably answered in its current form. For help clarifying this question so that it can be reopened, visit the help center.
Closed 11 years ago.
Is it possible to create app like iBooks?
I want to create app like iBooks. I want to know how i can curl the page of pdf.
Please share your ideas to create this app.
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