Book Image

Mastering openFrameworks: Creative Coding Demystified

By : Denis Perevalov
Book Image

Mastering openFrameworks: Creative Coding Demystified

By: Denis Perevalov

Overview of this book

openFrameworks is a powerful programming toolkit and library designed to assist the creative process through simplicity and intuitiveness. It's a very handy software library written in C++ to reduce the software development process, helping you to kick-start creative coding. With the help of C++ and shaders support, openFrameworks allows for the processing of all kinds of media information with your custom-developed algorithms at the lowest possible level, with the fastest speed. "Mastering openFrameworks: Creative Coding Demystified" will introduce you to a world of creative coding projects, including interactive installations, audio-visual, and sound art projects. You will learn how to make your own projects using openFrameworks. This book focuses on low-level data processing, which allows you to create really unique and cutting-edge installations and projects. "Mastering openFrameworks: Creative Coding Demystified" provides a complete introduction to openFrameworks, including installation, core capabilities, and addons. Advanced topics like shaders, computer vision, and depth cameras are also covered. We start off by discussing the basic topics such as image and video loading, rendering and processing, playing sound samples, and synthesizing new sounds. We then move on to cover 3D graphics, computer vision, and depth cameras. You will also learn a number of advanced topics such as video mapping, interactive floors and walls, video morphing, networking, and using geometry shaders. You will learn everything you need to know in order to create your own projects; create projects of all levels, ranging from simple creative-code experiments, to big interactive systems consisting of a number of computers, depth cameras, and projectors.
Table of Contents (22 chapters)
Mastering openFrameworks: Creative Coding Demystified
Credits
Foreword
About the Author
Acknowledgement
About the Reviewers
www.PacktPub.com
Preface
Index

Installing the ofxOpenNI addon


The ofxOpenNI addon was originally developed by Matthew Gingold. The addon wraps the basic OpenNI capabilities, including the following:

  • Getting a depth image

  • Getting a color image if the web camera is included in your depth camera model

  • Tracking the hands (namely, the wrist position) for use in gesture applications

  • Tracking human bodies, getting their silhouettes and skeleton point positions

Also, it supports several depth cameras simultaneously.

Currently, ofxOpenNI is a non-core addon, so you need to download and install it yourself. To do it, perform the following steps:

  1. Download the ofxOpenNI addon from the site http://ofxaddons.com.

    Tip

    Currently, the addon's page with the download button Download ZIP is located at https://github.com/gameoverhack/ofxOpenNI.

  2. Unzip the file, rename the folder to ofxOpenNI, and move it to the addons folder of your openFrameworks installation.

  3. Read the Drivers & getting the examples to work section of the README file included in...