Capturing 3d object with its Background view in iPhone

I am new in Open GLES. I got stuck at capturing the 3d object with its Background image. I am adding the CAEAGLLayer view as subview in my view and i am abl开发者_如何学JAVAe to take the image of 3d object but it is coming with black background but i want to take the image of whole view on which i am showing my 3d object. So please help me to resolve this issue.

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You need to give more information. What is the background?

• You use 1 view, it is EAGLView the I guess you should get the correct result.
• You use EAGLView as subview of your background then you need to capture 2 images then combine them into one.

Call [CALayer drawInContext:viewContext] to get image of your background view.

Combine 2 images

+ (UIImage *) imageFromImage:(UIImage *)img1 andImage:(UIImage*) img2 {
UIGraphicsBeginImageContext(img1.size);
[img1 drawAtPoint:CGPointMake(0, 0)];
[img2 drawAtPoint:CGPointMake(0, 0)];
UIImage *newImage = UIGraphicsGetImageFromCurrentImageContext();    
UIGraphicsEndImageContext();
return newImage;

}