Hi,
I'm running into random troubles with PyOpenGL transparency again, and the
simplest solution is just to make the textures have transparency. Normally,
I would just add the transparency in an image editor, but unfortunately I
have ~250 images. My solution is programming! I wrote a script which
should convert all the images to be ~50% transparent:
import pygame
from pygame.locals import *
import sys, os
pygame.init()
Surface = pygame.display.set_mode((256,256))
Images = []
for x in xrange(1,250,1):
numstr = str(x)
while len(numstr) < 4:
numstr = "0"+numstr
img = pygame.Surface((256,256))
img.blit(pygame.image.load(str(x)+".jpg").convert(),(0,0))
img.set_alpha(128)
Images.append(img)
pygame.image.save(img,str(x)+".png")
frame = 0
Clock = pygame.time.Clock()
while True:
Surface.fill((0,0,0))
Surface.blit(Images[frame],(0,0))
frame = (frame+1)%len(Images)
pygame.display.flip()
Clock.tick(50)
Now, what I see here is a window open and then a nice animation of the
images playing across it. The images are darker, because I am seeing the
black (Surface.fill((0,0,0))) through the images. Changing the alpha value
changes the brightness. Unfortunately, the saved images do not have the
alpha channel, which means that they don't have transparency which means
that the textures don't work.
Ideas?
Ian
