Book Image

Multimedia Programming with Pure Data

By : Bryan, Wai-ching CHUNG
Book Image

Multimedia Programming with Pure Data

By: Bryan, Wai-ching CHUNG

Overview of this book

Preparing interactive displays, creating computer games, and conducting audio-visual performance are now achievable without typing lines of code. With Pure Data, a graphical programming environment, creating interactive multimedia applications is just visually connecting graphical icons together. It is straightforward, intuitive, and effective. "Multimedia Programming with Pure Data" will show you how to create interactive multimedia applications. You will learn how to author various digital media, such as images, animations, audio, and videos together to form a coherent title. From simple to sophisticated interaction techniques, you will learn to apply these techniques in your practical multimedia projects. You start from making 2D and 3D computer graphics and proceed to animation, multimedia presentation, interface design, and more sophisticated computer vision applications with interactivity. With Pure Data and GEM, you will learn to produce animations with 2D digital imagery, 3D modelling, and particle systems. You can also design graphical interfaces, and use live video for motion tracking applications. Furthermore, you will learn Audio signal processing, which forms the key aspect to multimedia content creation. Last but not least, Network programming using Pure Data extension libraries explores applications to other portable devices.
Table of Contents (17 chapters)
Multimedia Programming with Pure Data
Credits
About the Author
About the Reviewers
www.PacktPub.com
Preface
Index

Chapter 2. Computer Graphics with the GEM Library

In this chapter, we will proceed with the Graphics Environment for Multimedia (GEM) library to work with computer graphics. We will start with the basics to create the GEM display window for graphics. Within the window, we will learn to draw 2D and 3D primitive shapes. We will understand the coordinates system in GEM in order to apply geometric transformations to the graphical shapes and also learn to enhance the surfaces of the graphical shapes with color information. Furthermore, we will learn to apply the lighting information to produce more realistic images. By the end, we should be able to produce a simple animation in 3D space.

GEM is an external library for the Pure Data software. It is available at http://gem.iem.at. Nevertheless, the version of Pure Data (pd-extended) we are using already includes the GEM library. We will use the GEM library to create both 2D and 3D graphics from scratch.

The topics that we are going to cover in this...