glEdgeFlagv(3gl)

1GLEDGEFLAG(3G)                                                  GLEDGEFLAG(3G)
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NAME

6       glEdgeFlag, glEdgeFlagv - flag edges as either boundary or nonboundary
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C SPECIFICATION

10       void glEdgeFlag( GLboolean flag )
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PARAMETERS

14       flag  Specifies   the  current  edge  flag  value,  either  GL_TRUE  or
15             GL_FALSE. The initial value is GL_TRUE.
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C SPECIFICATION

18       void glEdgeFlagv( const GLboolean *flag )
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PARAMETERS

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

26       Each  vertex of a polygon, separate triangle, or separate quadrilateral
27       specified between a glBegin/glEnd pair is marked as the start of either
28       a  boundary or nonboundary edge.  If the current edge flag is true when
29       the vertex is specified, the vertex is marked as the start of a  bound‐
30       ary  edge.  Otherwise, the vertex is marked as the start of a nonbound‐
31       ary edge.  glEdgeFlag sets the edge flag bit  to  GL_TRUE  if  flag  is
32       GL_TRUE, and to GL_FALSE otherwise.
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34       The  vertices  of  connected triangles and connected quadrilaterals are
35       always marked as boundary, regardless of the value of the edge flag.
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37       Boundary and nonboundary edge flags on vertices are significant only if
38       GL_POLYGON_MODE is set to GL_POINT or GL_LINE.  See glPolygonMode.
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NOTES

41       The  current  edge  flag  can  be  updated at any time.  In particular,
42       glEdgeFlag can be called between a call to glBegin and the  correspond‐
43       ing call to glEnd.
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ASSOCIATED GETS

46       glGet with argument GL_EDGE_FLAG
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