|
NAMEglPolygonMode - select a polygon rasterization modeC SPECIFICATIONvoid glPolygonMode( GLenum face,GLenum mode ) PARAMETERS
DESCRIPTIONglPolygonMode 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:
EXAMPLESTo draw a surface with filled back-facing polygons and outlined front-facing polygons, call glPolygonMode(GL_FRONT, GL_LINE);NOTESVertices 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.ERRORSGL_INVALID_ENUM is generated if either face or mode is not an accepted value.GL_INVALID_OPERATION is generated if glPolygonMode is executed between the execution of glBegin and the corresponding execution of glEnd. ASSOCIATED GETSglGet with argument GL_POLYGON_MODESEE ALSOglBegin, glEdgeFlag, glLineStipple, glLineWidth, glPointSize, glPolygonStipple Visit the GSP FreeBSD Man Page Interface. |