glBegin, glEdgeFlag, glLineStipple, glLineWidth, glPointSize, glPolygonStipple
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/.
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glPolygonMode: man2/glPolygonMode.xml
glPolygonMode controls the interpretation of polygons for rasterization. face describes which polygons mode applies to: front-facing polygons ( GL_FRONT ), back-facing polygons ( GL_BACK ), or both ( 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 :
Vertices are marked as boundary or nonboundary with an edge flag. Edge flags are generated internally by the GL when it decomposes polygons; they can be set explicitly using glEdgeFlag.