Hi, I'm trying to do the above. I've added a simple UIButton at the AppDelegate
level (as there is no ViewController).
When the button is tapped:
- (IBAction)pictureButtonTapped:(id)sender {
NSLog(@"%s", __FUNCTION__);
drawingView.backgroundColor = [UIColor colorWithPatternImage:[UIImage
imageNamed:@"background.png"]];
[drawingView playRay];
}
and this results in:
<CAEAGLLayer: 0x6c4a640>: calling -display has no effect.
I only know enough to be dangerous, so any advice on using the GLPaint sample
(or alternatives) and this issue specifically, would be most welcome...
David
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