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Processing 2: Creative Programming Cookbook

Processing 2: Creative Programming Cookbook

4.3 (8)
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Processing 2: Creative Programming Cookbook

Processing 2: Creative Programming Cookbook

4.3 (8)

Overview of this book

Processing is probably the best known creative coding environment that helps you bridge the gap between programming and art. It enables designers, artists, architects, students and many others to explore graphics programming and computational art in an easy way, thus helping you boost your creativity. "Processing 2: Creative Programming Cookbook" will guide you to explore and experience the open source Processing language and environment, helping you discover advanced features and exciting possibilities with this programming environment like never before. You'll learn the basics of 2D and 3D graphics programming, and then quickly move up to advanced topics such as audio and video visualization, computer vision, and much more with this comprehensive guide. Since its birth in 2001, Processing has grown a lot. What started out as a project by Ben Fry and Casey Reas has now become a widely used graphics programming language. Processing 2 has a lot of new and exciting features. This cookbook will guide you to explore the completely new and cool graphics engine and video library. Using the recipes in this cookbook, you will be able to build interactive art for desktop computers, Internet, and even Android devices! You don't even have to use a keyboard or mouse to interact with the art you make. The book's next-gen technologies will teach you how to design interactions with a webcam or a microphone! Isn't that amazing? "Processing 2: Creative Programming Cookbook" will guide you to explore the Processing language and environment using practical and useful recipes.
Table of Contents (18 chapters)
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Processing 2: Creative Programming Cookbook
Credits
About the Author
About the Reviewers
www.PacktPub.com
Preface
1
Index

Understanding 3D space


In Chapter 1, Getting Started with Processing 2, you learned about the coordinate system in Processing. In this recipe, we'll take a look at the third dimension, and draw objects in a 3D space.

How to do it...

The first thing you'll need to do is to import the OpenGL library. This will enable you to use the third dimension. You've done this before in the Drawing curves recipe, in Chapter 2, Drawing Text, Curves, and Shapes in 2D. Go to Sketch | Import Library | OpenGL to import the library using the following code:

import processing.opengl.*;

The next thing we need to do is declare two variables, right before the setup() function, and give them some values. Note that the size() function is a little different from the examples in Chapter 2.

float depth;
float zSpeed;

void setup()
{
  size( 640, 480, OPENGL );
  
  depth = 0;
  zSpeed = -1; 
}

The first thing we'll do inside draw() is change the value of the depth variable, so we can use it for animation. The following piece...

Visually different images
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Processing 2: Creative Programming Cookbook
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