c++ - How to render lower resolution scene stretched to fullscreen native resolution? -



c++ - How to render lower resolution scene stretched to fullscreen native resolution? -

i have seen kind of functionality in directx apps only: when resize window, rendering stretch accordingly, , looks texture stretched.

how can efficiently in opengl ? purpose create fullscreen application native resolution, because rather hard take lower resolution on lcd screens, , allow me render lower resolution higher fps.

you need render texture or renderbuffer, glblitframebuffer actual default framebuffer. swap buffers normal.

c++ opengl

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