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-<html>
-<head>
- <meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1">
- <meta name="Author" content="Mark Danks">
- <meta name="GENERATOR" content="Mozilla/4.5 [en] (WinNT; I) [Netscape]">
- <title>GEM - Introduction</title>
-</head>
-<body>
-
-<center>
-<h2>
-<u>Introduction</u></h2></center>
-GEM is the Graphics Environment for Multimedia. It was originally written by
-<a href="http://www.danks.org/mark">Mark Danks</a> to generate real-time computer graphics,
-especially for audio-visual compositions.
-Because GEM is a visual programming environment, users do not need any experience
-in traditional computer languages.
-<p>GEM is a collection of externals which allow the user to create
-<a href="http://www.opengl.org">OpenGL</a>
-graphics within <a href="http://www.crca.ucsd.edu/~msp/software.html">Pd</a>,
-a program for real-time audio processing by <a href="http://www.crca.ucsd.edu/~msp">Miller
-Puckette</a> (of <a href="http://www.ircam.fr">Max</a> fame).
-<p>There are many different shapes and objects, including polygonal graphics,
-lighting, texture mapping, image processing, and camera motion. All of
-this is possible in real-time without any previous programming experience.
-Because GEM is an add-on library for <a href="http://www.crca.ucsd.edu/~msp/software.html">Pd</a>,
-users can combine audio and graphics, controlling one medium from another.
-<p>GEM is supported in part by a grant from the <a href="http://www.intel.com">Intel
-Research Council</a> for the <a href="http://www.gvm.com">The Global Visual
-Music</a> project of <a href="http://felix.usc.edu/vibeke.html">Vibeke
-Sorensen</a>, <a href="http://www.crca.ucsd.edu/~msp">Miller Puckette</a>
-and <a href="http://www.earunit.org/rand.htm">Rand Steiger</a>.
-<p>An important thing to remember is that GEM is NOT an application.
-It is a library that Pd loads at run-time. Make sure that you see
-the section on <a href="GemWPd.html">using GEM with Pd</a>. This
-manual assumes that you have Pd working correctly and can load up patches
-already. If you do not have that working yet, look at the Pd manual
-and the GEM FAQ. Also, it is assumed that you have a basic understanding
-of how to use Pd and the idea behind the data flow model. In other
-words, if I ask you to pass a message with 3 floats into an object, you
-would know what I mean.
-<p>The system requirements vary depending on your system and what you are
-trying to do. In general, you should have the most powerful computer
-available and the best graphics accelerator on the market. In reality,
-people have been doing some amazing work with a Pentium II and an <a href="http://www.nvidia.com">nVidia
-Riva TNT</a> or <a href="http://www.3dfx.com">3Dfx Voodoo2</a> card.
-If you are on an SGI, then everything from an O2 up seems to be okay.
-The biggest requirement is that you have some kind of OpenGL graphics accelerator.
-This means that a Matrox Millennium II will not run very quickly.
-<p>The other factor is what you are trying to do. Pushing real-time
-video around requires a fast bus, which really only exists on SGIs.
-Doing thousands of texture mapped polygons is great on a PC...if it is
-a constant texture. There are many issues which mean that there is
-no one answer to "Is this system good enough?". In general, you will
-have to try and see.
-<p>GEM is now maintained by <a href="http://www.iem.at/info/personal/jz.htm">IOhannes m zmölnig</a>.
-So any bug-reports and donations should go to him instead of Mark...
-<p><a href="index.html">[return]</a>
-<br>
-</body>
-</html>
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