Computation
To determine the silhouette edge of an object, we first have to know the plane equation of all faces. Then, by examining the sign of the point-plane distance from the light-source to each face
Using this result, we can determine if the face is front- or back facing.
The silhouette edge(s) consist of all edges separating a front facing face from a back facing face.
Read more about this topic: Silhouette Edge
Famous quotes containing the word computation:
“I suppose that Paderewski can play superbly, if not quite at his best, while his thoughts wander to the other end of the world, or possibly busy themselves with a computation of the receipts as he gazes out across the auditorium. I know a great actor, a master technician, can let his thoughts play truant from the scene ...”
—Minnie Maddern Fiske (1865–1932)