gluErrorString, gluNewTess, gluTessBeginContour, gluTessBeginPolygon, gluTessNormal, gluTessProperty, gluTessVertex, glBegin, glEdgeFlag, glVertex
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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gluTessCallback: man2/gluTessCallback.xml
gluTessCallback is used to indicate a callback to be used by a tessellation object. If the specified callback is already defined, then it is replaced. If CallBackFunc is null, then the existing callback becomes undefined. These callbacks are used by the tessellation object to describe how a polygon specified by the user is broken into triangles. Note that there are two versions of each callback: one with user-specified polygon data and one without. If both versions of a particular callback are specified, then the callback with user-specified polygon data will be used. Note that the parameter used by some of the functions is a copy of the pointer that was specified when gluTessBeginPolygon was called. The legal callbacks are as follows: