E X P E R I M E N T S I N C O D E , G E N E R AT I V E A RT I N J AVA S C R I P T E N R I C O “ C A T O D O ” Z I M U E L JsDay 2014 - Verona (Italy) 

A B O U T M E • Enrico Zimuel (aka Catodo) • Creative coder and digital artist from Turin (Italy) • Developer since Texas Instruments Ti99/4A • Started to play with electronic art in mid-’90s • TEDx speaker about creative coding • I teach generative art at the Pictor Academy of Turin • More information http://www.catodo.net 

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C O D E I S P O E T RY 

A S C I I S H E L L F O R K B O M B Jaromil, 2002 

10 PRINT CHR$(205.5+RND(1)); : GOTO 10 Nick Montfort et al. 10print.org 

U N N A M E D S O U N D S C U L P T U R E http://vimeo.com/44815930 

G E N E R AT I V E A R T “Generative art refers to any art practice where the artist uses a system, such as a set of natural language rules, a computer program, a machine, or other procedural invention, which is set into motion with some degree of autonomy contributing to or resulting in a completed work of art.” (Philip Galanter) 

A R T M A D E B Y A L G O R I T H M S • Software art • Net.art • Creative coding • Generative art 

R A N D O M C U T S http://www.catodo.net/random-cuts-live-performance 

R A N D O M C U T S • Generative algorithm + human interaction • Processing + Leap Motion 

Using 2 monochromatic IR cameras and 3 infrared LEDs, the device observes a roughly hemispherical area, to a distance of about 1 meter (3 feet) 

L E A P J S • Javascript library for Leap Motion • • https://developer.leapmotion.com/leapjs 

R A N D O M C U T S I N J AVA S C R I P T • Processing.js + Timbre.js Random cuts by Catodo var sound1 = T("fnoise", {freq:100, mul:0.1}); var sound2 = T("saw", {freq:100, mul:0.1}); 

R A N D O M C U T S . P D E float colR, colG = 200, colB = 100, sizeBar = 10; ! void setup() { size(screen.width, screen.height); background(0); frameRate(10); } ! void draw() { strokeWeight(frameCount % sizeBar); if (frameCount % 2 == 0) { stroke(colR, colG, colB,frameCount % 255); } else { stroke(0); sound1.pause(); sound2.pause(); } cuts(random(0,20)); ! colR = random(0,255); colG = random(0,255); colB = random(0,255); sizeBar = random(0,screen.height/2); } 

R A N D O M C U T S . P D E void cuts(int num) { for (int i=0; i

G E N E R AT I V E A R T I N J AVA S C R I P T 

W E AV E S I L K . C O M 

http://soulwire.co.uk/experiments 

L I B R A R I E S F O R G E N E R AT I V E A R T I N J AVA S C R I P T 

P R O C E S S I N G . J S • Processing.js is the sister project of the popular Processing visual programming language, designed for the web • processingjs.org 

D 3 . J S • D3.js is a JavaScript library for manipulating documents based on data. D3 helps you bring data to life using HTML, SVG and CSS • http://d3js.org 

PA P E R . J S • Paper.js is an open source vector graphics scripting framework that runs on top of the HTML5 Canvas. • It offers a clean Scene Graph / Document Object Model and a lot of powerful functionality to create and work with vector graphics and bezier curves • http://paperjs.org 

T H R E E . J S • Javascript library for 3D • Renderers: WebGL, ,

R A P H A Ë L • Raphaël is a small JavaScript library that should simplify your work with vector graphics on the web • Raphaël uses the SVG W3C Recommendation and VML as a base for creating graphics. • http://raphaeljs.com 

T I M B R E . J S T("timbre.js") JavaScript Library for Objective Sound Programming T("sin", {freq:880, mul:0.5}).play(); 

S O M E R E F E R E N C E S • Hello World (video), http://vimeo.com/28499650 • The Art of Creative Coding (video), http://www.youtube.com/watch? v=eBV14-3LT-g • Stop drawing dead fish (video), http://vimeo.com/64895205 • The Nature of Code (book), http://natureofcode.com/ • 10print.org (book), http://10print.org/ • Fun programming, http://funprogramming.org/ • Open Processing, share your sketches! http://www.openprocessing.org/ 

T H A N K S ! Contacts ! Email: [email protected] Twitter: @iamcatodo http://www.catodo.net