flutterby's by Scott Graham <scottg@iname.com>

Alright.

This is my last minute (last second?) entry to Operation 3Dfx's screen saver
contest. It's a bunch of butterfly's flying around in a clearing in a forest.
At least that was the original idea. After having a bum CD-rom, no GUS drivers
for NT, Corel (real work) deadlines, and some stupidity on my part, amongst
other things, it didn't end up being nearly as cool as I had planned.

I started from scratch, using Glide only, so I wrote pretty much a whole 3d
engine (other than rasterization :). But as the deadline approached, it became
clear that even if I didn't sleep for the last week I wouldn't be able to
enter anything. So this version uses Mesa (a GL-alike), with the 3Dfx add-on.
You can get it on, um, the web. (multiple indirection from www.opengl.org)
Anyway 90% of this ended up being written in the last 2 days.  Don't tell
Sander (the organizer) ;).

The data files (I didn't even put them in a wad; doh!): tree and bfly are
raw's (long width, long height, width*height*3 => R, G, B) and the ground tex
is a fairly standard .RGB (which you will be able to deduce from image.cpp if
you don't know of it)

There's [probably] lots of legacy code in the src.zip. It's the directory I
was working in at the time that I finally had to zip and ul it (or I would
have missed the deadline) and I'm generally a <ahem> untidy person. For
example, the mpeg3 stuff works perfectly (amp derivative. only obj's incl. but
src is available), other than the call needs to be moved into a _beginthread,
and the eco-relaxing-birds chirping mp3 that was in the src directory was
accidentally deleted, and I didn't have the hour to regrab off CD/reencode it.
The spline stuff (cam.h) was also used to generate a stream of flowing blue
polygons, but I never got it completely working with this version (so it's not
in). The shadows (although sort of in there) are really broken. Oh, and I had
planned to do the screensaver part of it right at the end, but well, I didn't
make it.  It's a Win32 console app right now, which really is not satisfactory
for a win32 screensaver. And I haven't even tested it under Win95 (which I
don't have) which is supposed to be the main target. Oh, and the source is
disgusting looking. Basically, it's unfortunately lacking more than a little
polish... which is really all there is to demos. Oh well, enough caveats.
Maybe someone can get something out of the source which would be cool.

Peace

ps. Everyone should use OpenGL, Vim, and Java! (in their respective categories)

pps. Vote for me even though you've read all this messyness! =)

ppps.
to build: 
  Change the path in 'makefile' to point to MSVC
  Change the mesa lib path to point to the mesa libs
  type 'nmake' and all should be well

This assumes vc42 and glide have been installed properly and maybe some other
things I can't think of. Good luck with anything else. To build Mesa w/ 3Dfx,
you'll need to get the Mesa dist and then do something like MESAFX.bat in the
root mesa dir. good luck with that too.