Is it possible to \"degrade\" the quality of textures in OpenGL ES?By degrade I mean make the images more pixelated/blocky/blurry etc.
When I call glReadPixels on another thread, it doesn\'t return me any data. I read somewhere suggesting that I need to create a new context in the calling thread and copy the memory over. How exactly
I\'m working on some Android code for caching and redrawing a framebuffer object\'s color bufferbetween the loss and recreation of EGL contexts.Development is primarily happening on a Xoom tablet runn
I need to create a HBITMAP from data returned by a glReadPixels() call: HDC hCompDC = CreateCompatibleDC(NULL);
I work under MS WindowsXP,my video card is itel GMA4500, my code: glClearS开发者_StackOverflowtencil(0);
On iOS device (I tried ipad1 and ipad2) glreadpixel works for the RGBA pixel format, but for BGRA pixel format it does not work. In开发者_C百科 the code below I use GL_IMPLEMENTATION_COLOR_READ_FORMAT
I have an OpenGL window, and a wxWidget dialog. I want to mirror the OpenGL to the dialog. So what I intend to do is:
I am doing some gpgpu开发者_JAVA技巧 calculations with GL and want to read my results from the framebuffer.
Presently I am trying to read the pixel data from the frame Buffer in order to capture the screen in IOS. GlreadPixels command works fine when using the following code to setup frame buffer :-
I\'ve been writing a program based on the ScreenSnapshot开发者_StackOverflow example from apple: http://developer.apple.com/library/mac/#samplecode/OpenGLScreenSnapshot/Introduction/Intro.html
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