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GLPOLYGONMODE(3G)			  OpenGL Manual 			GLPOLYGONMODE(3G)

NAME
       glPolygonMode - select a polygon rasterization mode

C SPECIFICATION
       void glPolygonMode(GLenum face, GLenum mode);

PARAMETERS
       face
	   Specifies the polygons that mode applies to. Must be GL_FRONT_AND_BACK for front- and
	   back-facing polygons.

       mode
	   Specifies how polygons will be rasterized. Accepted values are GL_POINT, GL_LINE, and
	   GL_FILL. The initial value is GL_FILL for both front- and back-facing polygons.

DESCRIPTION
       glPolygonMode controls the interpretation of polygons for rasterization.  face describes
       which polygons mode applies to: both front and back-facing polygons (GL_FRONT_AND_BACK).
       The polygon mode affects only the final rasterization of polygons. In particular, a
       polygon's vertices are lit and the polygon is clipped and possibly culled before these
       modes are applied.

       Three modes are defined and can be specified in mode:

       GL_POINT
	   Polygon vertices that are marked as the start of a boundary edge are drawn as points.
	   Point attributes such as GL_POINT_SIZE and GL_POINT_SMOOTH control the rasterization
	   of the points. Polygon rasterization attributes other than GL_POLYGON_MODE have no
	   effect.

       GL_LINE
	   Boundary edges of the polygon are drawn as line segments. Line attributes such as
	   GL_LINE_WIDTH and GL_LINE_SMOOTH control the rasterization of the lines. Polygon
	   rasterization attributes other than GL_POLYGON_MODE have no effect.

       GL_FILL
	   The interior of the polygon is filled. Polygon attributes such as GL_POLYGON_SMOOTH
	   control the rasterization of the polygon.

EXAMPLES
       To draw a surface with outlined polygons, call

	   glPolygonMode(GL_FRONT_AND_BACK, GL_LINE);

NOTES
       Vertices are marked as boundary or nonboundary with an edge flag. Edge flags are generated
       internally by the GL when it decomposes triangle stips and fans.

ERRORS
       GL_INVALID_ENUM is generated if either face or mode is not an accepted value.

ASSOCIATED GETS
       glGet() with argument GL_POLYGON_MODE

SEE ALSO
       glLineWidth(), glPointSize()

COPYRIGHT
       Copyright (C) 1991-2006 Silicon Graphics, Inc. This document is licensed under the SGI
       Free Software B License. For details, see http://oss.sgi.com/projects/FreeB/.

AUTHORS
       opengl.org

opengl.org				    06/10/2014				GLPOLYGONMODE(3G)
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