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GLPOLYGONMODE(3G) | [FIXME: manual] | GLPOLYGONMODE(3G) |
NAME¶
glPolygonMode - select a polygon rasterization modeC SPECIFICATION¶
void
glPolygonMode(GLenum face,
GLenum mode);
PARAMETERS¶
faceSpecifies 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¶
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, callglPolygonMode( 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¶
ASSOCIATED GETS¶
SEE ALSO¶
COPYRIGHT¶
Copyright © 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/.05/30/2012 | [FIXME: source] |