Index for Section 3G

Alphabetical listing for G

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glEdgeFlag(3G)
NAME
  glEdgeFlag, glEdgeFlagv - option edges as either boundary or nonboundary

SYNOPSIS
  void glEdgeFlagv(
	  const GLboolean *option );

PARAMETERS
  option
      Specifies a pointer to an array that contains a single boolean element,
      which replaces the current edge option 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 option 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 option bit to GL_TRUE if option 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 option.

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

NOTES
  The current edge option can be updated at any time. In particular,
  glEdgeFlag() can be called between a call to glBegin() and the
  corresponding call to glEnd().

ASSOCIATED GETS
  glGet() with argument GL_EDGE_FLAG

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

Index for Section 3G

Alphabetical listing for G

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