glreadpixels
OpenGL ES - Reducing texture quality and texture size
Is it possible to \"degrade\" the quality of textures in OpenGL ES?By degrade I mean make the images more pixelated/blocky/blurry etc.[详细]
2023-04-04 15:07 分类：问答How to call glReadPixels on different thread?
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[详细]
2023-04-04 06:37 分类：问答Android OpenGL ES 2.0 -- glReadPixels() and glTexImage2D() drawing a black texture?
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[详细]
2023-03-30 20:54 分类：问答Creating a HBITMAP from glReadPixels
I need to create a HBITMAP from data returned by a glReadPixels() call: HDC hCompDC = CreateCompatibleDC(NULL);[详细]
2023-03-29 20:24 分类：问答opengl stencil buffer not initialized with zero?
I work under MS WindowsXP,my video card is itel GMA4500, my code: glClearS开发者_StackOverflowtencil(0);[详细]
2023-03-28 06:30 分类：问答OPENGL ES on iOS, glreadpixel doesn't work with BGRA format
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[详细]
2023-03-26 14:48 分类：问答How to draw screenshot captured from glReadPixels to wxWidgets dialog/panel
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:[详细]
2023-03-25 23:30 分类：问答Read Framebuffer-texture like an 1D array
I am doing some gpgpu开发者_JAVA技巧 calculations with GL and want to read my results from the framebuffer.[详细]
2023-03-25 20:27 分类：问答Reading data using glReadPixel() with multisampling
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 :-[详细]
2023-03-23 22:28 分类：问答OpenGLScreenSnapshot doesn't work in Mac OS X 10.7 - Lion
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[详细]
2023-03-23 16:03 分类：问答
![Interactive visualization of a graph in python [closed]](https://www.devze.com/res/2023/04-10/09/92d32fe8c0d22fb96bd6f6e8b7d1f457.gif)
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