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

Applying geometric transformation


In this section, we start to move the graphical shapes in the 3D space. The operations are translation, rotation, and scale. Each operation comes with two versions. They are: translate, translateXYZ, rotate, rotateXYZ, scale, and scaleXYZ. In this book, we focus on the use of translateXYZ, rotateXYZ, and scaleXYZ. Readers can use the help menu to check the usage of translate, rotate, and scale.

Performing translation, rotation, and scaling

Create an empty patch and save it with name gem005.pd in your folder. Put the gemwin object, create and destroy messages, and the toggle box for rendering. In addition, put a gemhead object with a cube 3D object.

Between the gemhead and the cube objects, insert a translateXYZ object. The translateXYZ operation moves the object along each of the three axes. The three number boxes control the magnitude of the movement:

Note that the cube changes position and renders with a perspective view:

For rotation, insert the rotateXYZ...