Hi all,
I recently got a problem that traces back to the drawing functions "line",
"aaline", "lines", and "aalines" ignoring any alpha value they are fed.
This seems to me to be a Bad Thing. The obvious workaround is to draw to a
temporary surface, and then blit the surface with transparency, but this is
extremely wasteful, as it *squares* the asymptotic complexity. Really, I
think this should instead be handled by PyGame in the underlying rasterizer.
Attached is a simple example.
Ian
import pygame
surface = pygame.display.set_mode((128,128))
pygame.draw. line(surface, (255,0,0,128), (0, 0),(128,128))
pygame.draw.aaline(surface, (0,255,0,128), (0,64),(128, 64))
running = True
while running:
for event in pygame.event.get():
if event.type==pygame.QUIT or (event.type==pygame.KEYDOWN and event.key==pygame.K_ESCAPE):
running = False
pygame.display.flip()
