I tried out changing the graphics settings, but they had no effect. The tearing occurs both in fullscreen and windowed mode, btw.
The core routine is this one: ------------------- # Flash elements ON groups[current_flash].clear(screen, background) groups[current_flash].update() # change state rects = groups[current_flash].draw(screen) #pygame.display.flip() pygame.display.update(rects) # Wait flash duration for t in range(self.flash_duration): clock.tick(self.fps) # Flash elements OFF groups[current_flash].clear(screen, background) groups[current_flash].update(-1) # change state back rects = groups[current_flash].draw(screen) #pygame.display.flip() pygame.display.update(rects) ------------------- For completeness, some extra info: * groups is a list of instances of pygame.sprite.RenderUpdates * screen = pygame.display.set_mode(...) * background is created in the following way: self.background = pygame.Surface( (self.screenWidth,self.screenHeight) ) self.background.fill(self.bgcolor) It may be (or may be not) relevant that each sprite has two graphical 'states' (for instance, two sizes or colors). The two according images and rectangles are stored in lists. Upon calling the update() method, self.image and self.rect are assigned the appropriate image and rectangle form the list, as follows self.image = self.images[current_state] self.rect = self.rects[current_state] Honestly, I didn't play any game before. I couldn't find aliens.py, but I just tried out 50 Bouncy Balls (because there are so many objects) and Invasion of the blobs (great 80's shooter :D ). I didn't see any tearing, but then again these games feature only small objects. Cheers, Matthias 2009/1/30 Brian Fisher <[email protected]>: > Can you share the code or some minimal sample that exhibits the problem for > you? It would probably help if others could confirm they see the issue, and > if it's a code issue, it would be easiest to see and solve having code. > > if you can't, do you get the tearing in both windowed and fullscreen or just > fullsccreen? do you get tearing with any/all of the examples? (like > aliens.py) >
