In an OpenGL ES app I'm working on, when i use glReadPixels to get pixel but got empty buffer.now i don't know what's wrong in my code。Thanks for any ...
In an OpenGL ES app I'm working on, when i use glReadPixels to get pixel but got empty buffer.now i don't know what's wrong in my code。Thanks for any ...
I'm seeing some pretty funny behavior on iOS 9 beta 5. When Siri is used to speak a string into a UITextView, all my OpenGL calls targeted at my CAEAG ...
I'm trying to create a Framebuffer to display a 3D model in my iOS app but when the framebuffer is created, the renderbufferStorage is returning false ...
I want to add images to a camera video feed in real time, but there is only need to display them, no need to save. If I use standard Core Image proced ...
As soon as app goes to background it must stop calling OpenGL functions. But somehow all efforts to stop OpenGL fail and my app often (but not always) ...
I'm on iOS 6 (7 too if you will and makes any difference) and GL ES 2.0. The idea is for a CAEAGLLayer to have a dynamic chain of shader-based filters ...
I'm trying to set up a CAEAGLLayer subclass with a gl context. That is, instead of creating a UIView subclass which returns a CAEAGLLayer and binding ...
For some reason, my OpenGL app is getting the wrong bounds information for CAEAGLLayer when running in the ios6 4-Inch Retina simulator. The CAEAGLLa ...
Im trying to render a opengl view (CAEAGLLayer) transparent so i can put a UIView behind it. I'm using the following settings to achieve a transparent ...
I have a view backed by a CAEAGLLayer, which is inside a UIScrollView. When I begin scrolling, the CADisplayLink that calls the -draw method of openGL ...