glEdgeFlagv

GLEDGEFLAG(3G)						       GLEDGEFLAG(3G)



NAME
       glEdgeFlag, glEdgeFlagv - flag edges as either boundary or nonboundary


C SPECIFICATION
       void glEdgeFlag( GLboolean flag )


PARAMETERS
       flag  Specifies	the  current  edge  flag  value,  either  GL_TRUE  or
	     GL_FALSE. The initial value is GL_TRUE.

C SPECIFICATION
       void glEdgeFlagv( const GLboolean *flag )


PARAMETERS
       flag   Specifies	 a pointer to an array that contains a single boolean
	      element, which replaces the current edge flag value.

DESCRIPTION
       Each vertex of a polygon, separate triangle, or separate quadrilateral
       specified  between  a  glBegin/glEnd  pair  is  marked as the start of
       either a boundary or nonboundary edge.  If the current  edge  flag  is
       true  when  the vertex is specified, the vertex is marked as the start
       of a boundary edge.  Otherwise, the vertex is marked as the start of a
       nonboundary  edge.   glEdgeFlag	sets  the edge flag bit to GL_TRUE if
       flag is GL_TRUE, and to GL_FALSE otherwise.

       The vertices of connected triangles and connected  quadrilaterals  are
       always marked as boundary, regardless of the value of the edge flag.

       Boundary	 and  nonboundary edge flags on vertices are significant only
       if GL_POLYGON_MODE is set to GL_POINT or GL_LINE.  See  glPolygonMode.

NOTES
       The  current  edge  flag	 can  be updated at any time.  In particular,
       glEdgeFlag can be called between a call to glBegin and the correspond-
       ing call to glEnd.

ASSOCIATED GETS
       glGet with argument GL_EDGE_FLAG

SEE ALSO
       glBegin(3G), glEdgeFlagPointer(3G), glPolygonMode(3G)



							       GLEDGEFLAG(3G)