off-screen

Are there any alternatives to using getframe and saveas for saving the contents of a figure to a raster image for further processing? Approach 1: getframe h = figure('visible', 'off'); a = axes('parent', h); % render using `scatter3()` or other plot function. content = frame2im(getframe(h)); This has the serious drawback of showing the figure to perform a screen capture in the call to getframe() and it is problematic when performing such a render in a loop (i.e. saving content at each iteration as a video frame). Approach 2: saveas h = figure('visible', 'off'); a = axes('parent', h); % render

This question already has an answer here: How to use GLUT/OpenGL to render to a file? 5 answers My aim is to render OpenGL scene without a window, directly into a file. The scene may be larger than my screen resolution is. How can I do this? I want to be able to choose the render area size to any size, for example 10000x10000, if possible? KillianDS It all starts with glReadPixels , which you will use to transfer the pixels stored in a specific buffer on the GPU to the main memory (RAM). As you will notice in the documentation, there is no argument to choose which buffer. As is usual with