Newsgroups:	comp.os.msdos.djgpp
Subject:	Real-time lens flares w/ Allegro?
From:	root AT delorie DOT com (Demandred)
Organization:	Cerberus Software
MIME-Version:	1.0
NNTP-Posting-Host:	remote616.compusmart.ab.ca
Message-ID:	<354545e0.0@ntnews.compusmart.ab.ca>
Date:	28 Apr 98 02:58:40 GMT
Lines:	23
To:	djgpp AT delorie DOT com
DJ-Gateway:	from newsgroup comp.os.msdos.djgpp

I'm in the midst of a twitch action game that's badly in need of a little eye 
candy.  After seeing some screenshots of Extreme Warfare, I decided that lens 
flares would be really cool, and since I'm using a stacked palette anyways (8 
bit), translucent ones wouldn't be difficult to achieve.  Heh.

I started out by drawing some sprites - bright in the middle, fading to dark at 
the edges.  Besides looking canned, they actually darken the background around 
the edges when blitted (draw_trans_rle_sprite()) at a constant alpha.  Not 
pretty.

So I put it to you, O gurus: how can I do real-time lens flares with Allegro?  
(If you're wondering why this isn't on comp.graphics.algorithms - it is.  It's 
acquired no responses after the better part of a week.)

Thanks.

-- 
Demandred, Lord of the 32-bit Registers
mail to: demandrd 'at' compusmart 'dot' ab 'dot' ca
http://www.nnetis.ca/~matt/dogfight.html
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