Top Draw is an image generation program just launched in the Google Mac Playground. By using simple text scripts, based on JavaScript, Top Draw can create surprisingly complex and interesting images. Even cooler is that the program has built-in support for installing any image of yours as your desktop image. There’s a Viewer application you can install in the menu bar to automatically run with the parameters (such as script and update interval) that you’ve specified. And there’s even a Screen Saver to display the scripts when your computer is taking a break.

To the right are a few examples of what Top Draw produces. By default, Top Draw will re-assign the rendered images as your desktop pic in assigned intervals.

Follow the link for more info! Top Draw for OS X