/*
?*?Copyright?（c）?1993-2003?Silicon?Graphics?Inc.
?*?All?Rights?Reserved
?*
?*?Permission?to?use?copy?modify?and?distribute?this?software?for?any
?*?purpose?and?without?fee?is?hereby?granted?provided?that?the?above
?*?copyright?notice?appear?in?all?copies?and?that?both?the?copyright
?*?notice?and?this?permission?notice?appear?in?supporting?documentation
?*?and?that?the?name?of?Silicon?Graphics?Inc.?not?be?used?in
?*?advertising?or?publicity?pertaining?to?distribution?of?the?software
?*?without?specific?written?prior?permission.
?*
?*?THE?MATERIAL?EMBODIED?ON?THIS?SOFTWARE?IS?PROVIDED?TO?YOU?“AS-IS“?AND
?*?WITHOUT?WARRANTY?OF?ANY?KIND?EXPRESS?IMPLIED?OR?OTHERWISE
?*?INCLUDING?WITHOUT?LIMITATION?ANY?WARRANTY?OF?MERCHANTABILITY?OR
?*?FITNESS?FOR?A?PARTICULAR?PURPOSE.??IN?NO?EVENT?SHALL?SILICON
?*?GRAPHICS?INC.??BE?LIABLE?TO?YOU?OR?ANYONE?ELSE?FOR?ANY?DIRECT
?*?SPECIAL?INCIDENTAL?INDIRECT?OR?CONSEQUENTIAL?DAMAGES?OF?ANY?KIND
?*?OR?ANY?DAMAGES?WHATSOEVER?INCLUDING?WITHOUT?LIMITATION?LOSS?OF
?*?PROFIT?LOSS?OF?USE?SAVINGS?OR?REVENUE?OR?THE?CLAIMS?OF?THIRD
?*?PARTIES?WHETHER?OR?NOT?SILICON?GRAPHICS?INC.??HAS?BEEN?ADVISED?OF
?*?THE?POSSIBILITY?OF?SUCH?LOSS?HOWEVER?CAUSED?AND?ON?ANY?THEORY?OF
?*?LIABILITY?ARISING?OUT?OF?OR?IN?CONNECTION?WITH?THE?POSSESSION?USE
?*?OR?PERFORMANCE?OF?THIS?SOFTWARE.
?*
?*?US?Government?Users?Restricted?Rights?
?*?Use?duplication?or?disclosure?by?the?Government?is?subject?to
?*?restrictions?set?forth?in?FAR?52.227.19（c）（2）?or?subparagraph
?*?（c）（1）（ii）?of?the?Rights?in?Technical?Data?and?Computer?Software
?*?clause?at?DFARS?252.227-7013?and/or?in?similar?or?successor?clauses
?*?in?the?FAR?or?the?DOD?or?NASA?FAR?Supplement.??Unpublished?-?rights
?*?reserved?under?the?copyright?laws?of?the?United?States.
?*
?*?Contractor/manufacturer?is:
?*	Silicon?Graphics?Inc.
?*	1500?Crittenden?Lane
?*	Mountain?View?CA??94043
?*	United?State?of?America
?*
?*?OpenGL（R）?is?a?registered?trademark?of?Silicon?Graphics?Inc.
?*/

/*
?*??torus.c
?*??This?program?demonstrates?the?creation?of?a?display?list.
?*/

#include?
#include?
#include?
#include?

#define?PI_?3.14159265358979323846

GLuint?theTorus