Message-ID: <001001be56df$36ac2660$97f9c6c3@johans-dator>
From: "Johan Henriksson" <johan DOT he AT telia DOT com>
To: <djgpp AT delorie DOT com>
Subject: Re: Problems with allegro masked_blit function....transparency not working
Date: Sat, 13 Feb 1999 00:27:09 +0100
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Reply-To: djgpp AT delorie DOT com


from Johan Henriksson, Sweden    HTTP://come.to/jhewok  |
Primary mail: johan DOT he AT telia DOT com                  #UIN 12035895
Second: jhe75 AT hotmail DOT com    Third: johan_he AT yahoo DOT com
Leadprogrammer and FX-specialist at Real software
http://come.to/real_software
*************************************************************************
-----Original Message-----
From: Chris <chris DOT wright AT NOSPAM DOT dial DOT pipex DOT com>
Newsgroups: comp.os.msdos.djgpp
To: djgpp AT delorie DOT com <djgpp AT delorie DOT com>
Date: Saturday, February 13, 1999 12:05 AM
Subject: Problems with allegro masked_blit function....transparency not
working


>I have a 16 bit background on which I want to move around some 8 bit
>colour sprites.

Why use 8 bit sprites? Mostly, combining colordepths slows down the computer
and might give you problem when you use datafiles.

>I would also like some parts of these sprites to be
>transparent so the background is visible through them.
>
>There is an allegro function masked_blit to do this, but it doesn't
>seem to work.....any points of colour 0 on my sprites simply show up
>as black on my background, NOT transparent.
>
>Ideas ?
>
>Ta,
>Chris.
>