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OpenFrameworks Essentials

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OpenFrameworks Essentials

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OpenFrameworks Essentials
Apr, 2015 | 206 pages
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Table of Contents (19 chapters)
openFrameworks Essentials
openFrameworks Essentials
Credits
Credits
Foreword
Foreword
About the Authors
About the Authors
About the Reviewers
About the Reviewers
www.PacktPub.com
www.PacktPub.com
Preface
Preface
Free Chapter
1
Getting Started with openFrameworks
Getting Started with openFrameworks
What is openFrameworks?
Installing openFrameworks
Running your first example
The video synthesizer application
Summary
2
Creating Your First openFrameworks Project
Creating Your First openFrameworks Project
Creating and running a new project
Discovering the project's code structure
Setting up the screen
Centering the coordinate system
A simple drawing
Geometric patterns
Summary
3
Adding a GUI and Handling Keyboard Events
Adding a GUI and Handling Keyboard Events
Creating a GUI using the ofxGui addon
Implementing a simple GUI panel with sliders
Implementing the autosave feature
Creating groups of controls
Implementing a checkbox, a color selector, and a 2D slider
Handling keyboard events
Implementing the matrix pattern generator
Summary
4
Working with Raster Graphics – Images, Videos, and Shaders
Working with Raster Graphics – Images, Videos, and Shaders
Raster images in openFrameworks
Drawing an image file
Playing a video file
Grabbing a live video from a camera
Mixing layers using additive blending
Creating the video effect with a shader
Summary
5
Creating 3D Graphics
Creating 3D Graphics
Introduction to 3D graphics with openFrameworks
Drawing a wireframe sphere
Creating a camera
Drawing a solid sphere
Texturing the sphere
Mixing 2D and 3D with the GUI
Deforming a sphere
Summary
6
Animating Parameters
Animating Parameters
Using time values for a parameter's automation
Using the level of sound for a parameter's automation
Capturing sound from a sound card's input and measuring its level
Reading data from a text file
Controlling automation
Summary
7
Distributed and Physical Computing with Networking and Arduino
Distributed and Physical Computing with Networking and Arduino
Distributed computing with networking
Networking in openFrameworks
Implementing the OSC messages receiver
Creating an OSC sender with openFrameworks
Creating OSC senders with TouchOSC, Python, and Max/MSP
Physical computing with Arduino
Programming an Arduino board
Summary
8
Deploying the Project on iOS, Android, and Raspberry Pi
Deploying the Project on iOS, Android, and Raspberry Pi
Running the project on an iOS device
Deploying the project on an iOS device
Running the project on an Android device
Running the project on Raspberry Pi
Summary
9
Further Resources
Further Resources
Enhancing the video synthesizer project
Getting more information on openFrameworks
Debugging and speeding up your code
Summary
Video Synthesizer Reference
Video Synthesizer Reference
The desktop version
iOS and Android versions
Raspberry Pi version
Summary
openFrameworks Quick Reference
openFrameworks Quick Reference
Application
2D drawing
The GUI
Multimedia and other classes
Mathematical, timer, and conversion functions
Summary
Index
Index

Creating OSC senders with TouchOSC, Python, and Max/MSP

At this point, we create the OSC sender using openFrameworks and send its data out to the VideoSynth project. But, it's easy to create the OSC sender using other programming tools. Such an opportunity can be useful for you in creating complex projects.

So, let's show how to create an OSC sender on a mobile device using the TouchOSC app and also create simple senders using the Python and Max/MSP languages.

Tip

If you are not interested in sending OSC from mobile devices or in Python or Max/MSP, feel free to skip the corresponding sections.

Creating an OSC sender for a mobile device using the TouchOSC app

It is very handy to control your openFrameworks project by a mobile device (or devices) using the OSC protocol.

You can create a custom OSC sender by yourself (see the next chapter, where we explain creating openFrameworks projects for mobiles), or you can use special apps made for this purpose.

One such application is TouchOSC. It's a paid...

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