Generative Art: A practical guide using Processing by Matt Pearson

By Matt Pearson

"Generative Art" provides either the options and the wonderful thing about algorithmic artwork. In it, you'll locate many fine quality examples of generative artwork, besides the explicit steps the writer to create each one detailed piece utilizing the Processing programming language. The e-book contains concise tutorials for every of the technical elements required to create the book's photographs, and it deals numerous feedback for a way you could mix and reuse some of the suggestions to create your individual works.

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Additional info for Generative Art: A practical guide using Processing

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Background(#E6E6E6); produces the same result as background(230, 230, 230); (E6 hexadecimal = 230 decimal). Next, let’s look at the stroke. 2 Strokes, styles, and coordinates Returning to the code walkthrough, these are the next two lines: stroke(130, 0, 0); strokeWeight(4); They tell Processing to set the color of your stroke (imagine this as your virtual pen) to a medium red (using RGB values again), and set the pixel thickness to 4. After this, you draw a line in the stroke style you’ve just set: line(width/2 - 70, height/2 - 70, width/2 + 70, height/2 + 70); For this function, the parameters are (startx, starty, endx, endy); but in this case, you haven’t simply passed static values.

To retain a necessary focus, this book discusses only one tool—the programming language— as a way of producing only one range of output: visuals. But generative methods may also be used to produce music, architecture, poetry, dance, storytelling or interactive experiences, and the autonomous systems behind their creation may also be mechanical, games of chance, natural phenomena, or subconscious human behavior. We’ll touch on some of these alternative approaches later in the book. 2 The history of a new idea Generative art has a history measured in decades, not long compared to other arts, which is probably why it’s still on the periphery of the art world.

You’ve called a function (ellipse) and passed it a number of parameters (x, y, width, and height). You can think of a function as a service you use to perform a certain task. Sometimes you feed it parameters; sometimes it only needs to be called. It may give you a value back, or it may just perform the task it’s designed for—such as drawing to the screen. Later in this chapter, you’ll write your own functions; but before you get there, you’ll test a number of the core functions built into Processing, of which ellipse is but one.

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