Pencil Drawing” del designer e sviluppatore Kynd, ha realizzato questo tool con openFrameworks. Sul suo profilo Vimeo potete vedere molti altri esempi.

Pencils has been the most primitive or the most basic drawing and writing tool since around the last century. It also was the one of the primary tools when I was in an art school and has been my best friend since then. Trying to simulate the tone of pencil sketches with programing codes, I reacknowledged that the beauty of of the tool lies in the delicate control of the blackness, strength and thickness of of lines, which I could hardly achieve in some of my attempts so far.