Tutorials. A collection of step-by-step 
lessons covering beginner, intermediate, and advanced topics.

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Getting Started
by Ben Fry and Casey Reas

Welcome to Processing! This introduction covers the basics of writing code with Processing.

Level: Beginner

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Coordinate System and Shapes
by Daniel Shiffman

Drawing simple shapes and using the coordinate system.

Level: Beginner

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Color
by Daniel Shiffman

An introduction to digital color.

Level: Beginner

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Objects
by Daniel Shiffman

The basics of object-oriented programming.

Level: Beginner

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Two-Dimensional Arrays
by Daniel Shiffman

How to store data in a matrix using a two-dimensional array.

Level: Intermediate

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Trigonometry Primer I
by Ira Greenberg

An introduction to trigonometry.

Level: Intermediate

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Processing in Eclipse
by Daniel Shiffman

Write Processing code in the IDE for Java developers. Also, learn how to make classes that are not inner classes (.java)

Level: Advanced

Links: http://www.eclipse.org/

 

Additional Processing tutorials: