- FBOs— [Mastering openFrameworks: Creative Coding Demystified By Denis Perevalov](http://books.google.com/books?id=WRr2AAAAQBAJ&lpg=PT273&ots=9ni9ou1Wh8&dq=openframeworks%20screen%20artifacts&pg=PT112#v=onepage&q=openframeworks%20screen%20artifacts&f=false) - draw images to a buffer that has a graphic effect applied to it _(wind, fluid, churning smoke that reacts to the user's hands movements?)_