On Mon, Jul 13, 2015 at 5:34 PM, Tom Rothamel <t...@rothamel.us> wrote:
> There isn't a way to update a portion of the display using OpenGL. OpenGL > expects you to redraw the screen from scratch every frame, and then flip to > the next frame. > > How are you drawing to the screen? Are you using GL calls? Or pygame blits > to the screen surface? The later doesn't work with OPENGL. > Yes and: > Is it possible that the cause is that OPENGL is being used by pygame? > On Windows, afaik, this only happens if you request it with the pygame.OPENGL flag. Nevertheless, inspecting the value of the following should say for sure: import os print(os.environ["SDL_VIDEODRIVER"]) Pro-tip: IIRC, you can also *set* that value to whatever you like *before* you initialize PyGame. Some values <http://sdl.beuc.net/sdl.wiki/SDL_envvars>. Ian
