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We click on that and what you find is there, there are currently two versions of Processing available, a Stable Version is 1.5.1 which was released back in May of 2011. On the other hand, version 2.0 is nearly ready for release, and in fact, they've been making Public Releases of the alpha and I've been using those in developing this course. And the most recent, which was released in August of 2012 is Version 2.0 Alpha 8.
And I've been using this with no problems and I suggest that you simply go straight ahead to that Version 2.0 for your own work. If you have a Windows computer, you can use that 32-bit or 64-bit. Now be aware that this is going to require the Java Runtime Environment to work with it and it will need to be in a matching 32 or 64-bit. The computer that I'm using right now, we needed to use Windows 32-bit to install. All you need to do is click on the link and download the file and double-click to open it.
I have already installed this, so I'll press Cancel. If you have a Macintosh computer, simply click on Mac OS X, there is a single version that works seamlessly. And if you have a Linux computer, you also have a choice between 32 and 64-bit. Now, the differences between Versions 1.5 and 2.0 are significant but most of them are under their hood, and will not be something that you actually had to deal with in creating your own Processing sketches. For instance, 3D rendering is now done exclusively with OpenGL, as opposed to processing its own renderer.
There is also the possibility of adding new modes as they are developed. When you install Processing and perhaps the most significant thing that you need to do is choose where your sketches folder is. I'll open up my copy of Processing and go to Ctrl+, on a PC or Cmd+, on a Mac to open up the Preferences. And you have the possibility of selecting a Sketchbook location, that is, sketch is the Processing term for programs or scripts.
On my own computer, I put it inside my documents folder inside a drop-box folder, so I have it accessible from other places. You can put it wherever you want. All you are going to need know is that's where your files are going to go and that's where your libraries need to be installed when we get to them. The installation of Processing is a straightforward and simple procedure. Now, that you have a working copy of Processing installed on your computer, let's take a closer look at the program itself.
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