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\newblock Addison Wesley, 1985.

\bibitem[Bli94]{blinn:1994}
Jim Blinn.
\newblock Compositing theory.
\newblock {\em IEEE Computer Graphics and Applications}, September 1994.
\newblock Republished in~\cite{blinn:1998}.

\bibitem[Bli98]{blinn:1998}
Jim Blinn.
\newblock {\em {Jim Blinn's Corner: Dirty Pixels}}.
\newblock Morgan Kaufmann, 1998.

\bibitem[Pac00a]{render:2000}
Keith Packard.
\newblock {A New Rendering Model for X}.
\newblock In {\em FREENIX Track, 2000 Usenix Annual Technical Conference},
  pages 279--284, San Diego, CA, June 2000. USENIX.

\bibitem[Pac00b]{xrender}
Keith Packard.
\newblock {The X Rendering Extension}.
\newblock Xfree86 draft standard, The XFree86 Project, Inc., 2000.

\bibitem[PD84]{porterduff:1984}
Thomas Porter and Tom Duff.
\newblock {Compositing Digital Images}.
\newblock {\em Computer Graphics}, 18(3):253--259, July 1984.

\bibitem[Pik00]{pike:draw}
Rob Pike.
\newblock {\em draw - screen graphics}.
\newblock Bell Laboratories, 2000.
\newblock Plan 9 Manual Page Entry.

\bibitem[SAe99]{gl:1.2.1}
Mark Segal, Kurt Akeley, and Jon~Leach (ed).
\newblock {\em The OpenGL Graphics System: A Specification}.
\newblock SGI, 1999.

\bibitem[SG92]{x}
Robert~W. Scheifler and James Gettys.
\newblock {\em X Window System}.
\newblock Digital Press, third edition, 1992.

\end{thebibliography}
