glCullFace

GLCULLFACE(3G)						       GLCULLFACE(3G)



NAME
       glCullFace  -  specify  whether	front-	or  back-facing facets can be
       culled


C SPECIFICATION
       void glCullFace( GLenum mode )


PARAMETERS
       mode  Specifies whether front- or back-facing  facets  are  candidates
	     for   culling.    Symbolic	  constants  GL_FRONT,	GL_BACK,  and
	     GL_FRONT_AND_BACK are accepted.  The initial value is GL_BACK.

DESCRIPTION
       glCullFace specifies whether front- or back-facing facets  are  culled
       (as specified by mode) when facet culling is enabled. Facet culling is
       initially disabled.  To enable and disable  facet  culling,  call  the
       glEnable	 and  glDisable	 commands  with	 the  argument	GL_CULL_FACE.
       Facets include triangles, quadrilaterals, polygons, and rectangles.

       glFrontFace specifies which  of	the  clockwise	and  counterclockwise
       facets are front-facing and back-facing.	 See glFrontFace.

NOTES
       If   mode  is GL_FRONT_AND_BACK, no facets are drawn, but other primi-
       tives such as points and lines are drawn.

ERRORS
       GL_INVALID_ENUM is generated if mode is not an accepted value.

       GL_INVALID_OPERATION is generated if glCullFace	is  executed  between
       the execution of glBegin and the corresponding execution of glEnd.

ASSOCIATED GETS
       glIsEnabled with argument GL_CULL_FACE
       glGet with argument GL_CULL_FACE_MODE

SEE ALSO
       glEnable(3G), glFrontFace(3G)



							       GLCULLFACE(3G)