sorry, the blit musty be
tmp.blit(surf, (0,0), surf.get_rect(), BLEND_RGBA_MULT)
--
claxo
On Wed, Sep 24, 2008 at 2:58 AM, claudio canepa [EMAIL PROTECTED] wrote:
something like:
def get_alphaed( surf, alpha):
tmp = Pygame.Surface( surf.get_size(), SRCALPHA, 32)
tmp.fill(
Hi List,
just want to make sure i got this right, please correct me if i'm wrong:
if i have a jpg-file, i can set the transparency with the command
pygame.Surface.set_alpha(alpha-value).
but if i hav a .png-file with already transparent background, i can not
set the alpha-value of
thanks for the advice, i updated the code at
http://www.spielend-programmieren.at/wiki/doku.php?id=code:colordemo1.py
-Horst
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Hi List,
just want to make sure i got this right, please correct me if i'm wrong:
if i have a jpg-file, i can set the transparency with the command
pygame.Surface.set_alpha(alpha-value).
but if i hav a .png-file with already transparent background, i can not
set the alpha-value of that
Well, .set_alpha() docs tells that per pixel alpha overrides surface alpha,
so you can set the alpha but will have no effect.
If you are on pygame 1.8.1, you can blit to a temporary surface with
BLEND_MULT flags, the final pixel - channel will go as:
tmp = a*b/256 where a.blit(b,.., BLEND_MULT)
