Clipping

• Clipping using homogeneous coordinates
  James F. Blinn, Martin E. Newell
  SIGGRAPH Proceedings 1978 - PDF

• The Homogeneous Persepective Transform
  James F. Blinn
  in J. Binn's Corner - PDF

• W Pleasure, W Fun
  James F. Blinn
  IEEE Computer Graphics and Applications , Volume 18 Issue 3