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 ofMesh

The ofMesh class is a powerful class that is used for representing, modifying, and rendering 3D objects. By default, it draws triangle meshes, but it can also be used for drawing curves and points.

The ofMesh class performs rendering of many thousands and even millions of triangles by one OpenGL call, at the highest possible speed. Even though using ofMesh will at first seem slightly more complicated than using ofTriangle(), it will give you more flexibility in creating and modifying 3D objects in return. So it is highly recommended that you use ofMesh for 3D in all cases, except the very beginning or for learning 3D. You can use ofMesh not only for 3D but for 2D graphics as well.


openFrameworks has one more class, named ofVBOMesh, that is used for working with meshes. The class name means "mesh based on Vertex Buffer Object (VBO)". This class is similar to ofMesh, but it renders significantly faster when the vertices of the mesh are not changing. See details of its usage and...