Pygame Bug (#68)

Tinkering around with circles and colors, I created a program which creates interesting images, both with pygame.draw.circle() (left) and pygame.gfxdraw.circle() (right). (Both images at 400 ⨉ 400 pixels.)

To get a smoother and nicer result, I tried using the pygame.gfxdraw.aacircle() function, which draws antialiased circles.

As expected, the antialiased function gets rid of the black spots be­tween the colored circles.

Wanting a higher resolution, I used the same code on a 1000 ⨉ 1000 pixel wide surface.

Again, it is a smooth and neat result. But as I got higher and higher resolutions, I got this interesting result. (At 3000 ⨉ 3000 pixels)

To make sure, the problem is on pygame.gfxdraw.aacircle()’s side, I created images of equal size with both pygame.draw.circle() (left) and pygame.gfxdraw.circle() (right). (Both images again at 3000 ⨉ 3000 pixels.)
To ensure, the problem is not on my operating system’s side, I used the exact same code on Mac OSX, Debian Linux and Windows 7 and 8.1 and got the same result each time.

At last, I used all three functions at 4000 ⨉ 4000 pixels. (pygame.draw.circle() on the left, pygame.gfxdraw.cirlce() on the right and pygame.gfxdraw.aacircle() on the bottom.)

Source code: pygame-bug.py