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From: whelan@donald.uhcc.Hawaii.Edu (Jerry Whelan)
Newsgroups: comp.windows.ms
Subject: Color cycling
Keywords: background window animation
Message-ID: <9616@uhccux.uhcc.Hawaii.Edu>
Date: 30 Sep 90 05:47:47 GMT
Sender: news@uhccux.uhcc.Hawaii.Edu
Organization: Dot in the Deep Blue Sea
Lines: 22


	There are a number of programs for the X window system that
will perform some action in the background (or root) window such as
bounce a ball around or 3d wire-traced polyhedron (ico I believe does this).
Anyways such programs eat cpu cycles, however a similar program for MS Windows
might be interesting.  
	A lot of simple computer animation seqences are actually color
cycling (anyone remember the waterfall on the Atari ST?) with no
redrawing involved.  It seems to me that given a BMP file designed
for a color cycling system, one could have a simulated animated root
window without placing a particularly large load on the cpu.
	Has anyone taken a look at this possibility already?  What
sort of performance delays does cycling a color pallete under MS Windows
invoke?  Anyone with an SDK wanna try?  Anyone have a nice 1024x768x256
picture that color cycling will animate?  I figure one would
need a 256 color system, otherwise you'd be pretty limited in what
you could do.  Those of you who have played with fractint have probably
seen some really nice color-cycling animation, but I'd hate to have
one of those in the background, too hypnotic...
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