I did never say anything else. BMP origin is on the top left but OpenGL origin is on the bottom left.
I used SDL_SaveBMP and it was indeed upside down. So, for anyone who wants to use SDL, my solution is necessary.
I did never say anything else. BMP origin is on the top left but OpenGL origin is on the bottom left.
I used SDL_SaveBMP and it was indeed upside down. So, for anyone who wants to use SDL, my solution is necessary.
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