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
About the Author
About the Reviewers

Using ofxOpenCv

The most straightforward way to use the ofxOpenCv addon in your project is to start a new project based on the example of the ofxOpenCv usage. To do so, copy the examples/addons/opencvExample folder to the folder with your projects (for example, apps/myApps) and rename it (for example, to myCompVision).

The second way is to generate a new project using the Project Generator wizard included in openFrameworks. It lets you select which addons to link to the project and then creates a new empty project that includes the required addons. In our case, you need to include ofxOpenCv. See Appendix A, Working with Addons, for more details.

When the project has been copied or generated, you need to include the addon's header into your testApp.h file, just after the #include "ofMain.h" line:

#include "ofMain.h"
#include "ofxOpenCv.h"

The ofxOpenCv addon is a collection of classes. The classes' names begin with ofxCV. There are two groups of classes: the image classes and the algorithm classes...