问题
Having
srf = pygame.display.set_mode(viewport, OPENGL | DOUBLEBUF)
and performing
srf.fill([255,255,255])
results in the following error message:
pygame.error: Cannot call on OPENGL Surfaces
How to solve this issue? How can I change the background color?
回答1:
You have to use the glClearColor function to set the color you want to clear your screen to, and then use glClear to actually clear the screen with the color specified.
E.g. call
glClearColor(0.7, 0, 0, 1)
to set the color to red and then call
glClear(GL_COLOR_BUFFER_BIT)
to clear the screen to this color.
来源：https://stackoverflow.com/questions/53535984/how-to-change-background-color-of-an-opengl-surface