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I'm trying to blit a PNG image onto a surface, but the transparent part of the image turns black for some reason, here's the simple code:
screen = pygame.display.set_mode((800, 600), pygame.DOUBLEBUF, 32) world = pygame.Surface((800, 600), pygame.SRCALPHA, 32) treeImage = pygame.image.load("tree.png") world.blit(treeImage, (0,0), (0,0,64,64)) screen.blit(world, pygame.rect.Rect(0,0, 800, 600)) What do I have to do to solve the problem? The image has alpha transparency, I've opened it up in PhotoShop and the background turns transparent, not black or white or any other color.
Thank you for your support :)
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Test inline PNG images PNG images can contain alpha (transparency) information. Unlike GIF, which requires a particular color to be designated fully transparent, PNG allows the transparency of all pixels to take any value from fully transparent though partial transparency to full opacity.
There are three types of transparency supported in pygame: colorkeys, surface alphas, and pixel alphas. Surface alphas can be mixed with colorkeys, but an image with per pixel alphas cannot use the other modes. Colorkey transparency makes a single color value transparent.
http://www.pygame.org/docs/ref/image.html recommends:
For alpha transparency, like in .png images use the
convert_alpha()method after loading so that the image has per pixel transparency.
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