glReadPixels is an OpenGL API function to read pixels data from source framebuffer to destination memory buffer.
How to take a screenshot of an OpenGL window in C++ and save it to file. I found the glReadPixels() …
c++ opengl save screenshot glreadpixelsCan I use Pixel Buffer Object (PBO) to directly read the pixels values (i.e. using glReadPixels) from the FBO (…
opengl framebuffer fbo glreadpixels pboI want to get every OpenGL frame from an animation with glReadPixels() and convert the data to OpenCV::Mat. I …
c++ opengl opencv glreadpixelsI want to dump raw texture data to disk (to read back later), and I'm not sure about glReadPixel will …
ios opengl-es textures glreadpixelsI'm working on some Android code for caching and redrawing a framebuffer object's color buffer between the loss and recreation …
android opengl-es opengl-es-2.0 glreadpixels glteximage2dYou know the sample code of Apple with the CameraRipple effect? Well I'm trying to record the camera output in …
ios opengl-es-2.0 fbo glreadpixelsI'm trying to detect the opengl object under the cursor... I have read it referred to as picking. Here is …
android opengl-es glreadpixelsI'm using glReadPixels to read data into a CVPixelBufferRef. I use the CVPixelBufferRef as the input into an AVAssetWriter. Unfortunately …
ios avassetwriter glreadpixels