glCullFace(3G)		       OpenGL Reference			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	default	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
     enabled and disabled using	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	the mode is GL_FRONT_AND_BACK then no facets are drawn,	but other
     primitives	such as	points and lines are.

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, glFrontFace














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