From 5c694f159b012d1d94bf15bfe580dec52e4fe797 Mon Sep 17 00:00:00 2001 From: Travis CI Date: Sat, 14 Mar 2015 20:40:49 +0000 Subject: Gem osx/x86_64 built '' for osx/x86_64 --- Gem/manual/Intro.html | 62 +++++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 62 insertions(+) create mode 100644 Gem/manual/Intro.html (limited to 'Gem/manual/Intro.html') diff --git a/Gem/manual/Intro.html b/Gem/manual/Intro.html new file mode 100644 index 0000000..23e8d23 --- /dev/null +++ b/Gem/manual/Intro.html @@ -0,0 +1,62 @@ + + + + + + + GEM - Introduction + + + +
+

+Introduction

+GEM is the Graphics Environment for Multimedia. It was originally written by +Mark Danks 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. +

GEM is a collection of externals which allow the user to create +OpenGL +graphics within Pd, +a program for real-time audio processing by Miller +Puckette (of Max fame). +

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 Pd, +users can combine audio and graphics, controlling one medium from another. +

GEM is supported in part by a grant from the Intel +Research Council for the The Global Visual +Music project of Vibeke +Sorensen, Miller Puckette +and Rand Steiger. +

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 using GEM with Pd.  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. +

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 nVidia +Riva TNT or 3Dfx Voodoo2 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. +

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. +

GEM is now maintained by IOhannes m zmölnig. +So any bug-reports and donations should go to him instead of Mark... +

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